17c1a000dSChao Yu // SPDX-License-Identifier: GPL-2.0 20a8165d7SJaegeuk Kim /* 3e05df3b1SJaegeuk Kim * fs/f2fs/node.c 4e05df3b1SJaegeuk Kim * 5e05df3b1SJaegeuk Kim * Copyright (c) 2012 Samsung Electronics Co., Ltd. 6e05df3b1SJaegeuk Kim * http://www.samsung.com/ 7e05df3b1SJaegeuk Kim */ 8e05df3b1SJaegeuk Kim #include <linux/fs.h> 9e05df3b1SJaegeuk Kim #include <linux/f2fs_fs.h> 10e05df3b1SJaegeuk Kim #include <linux/mpage.h> 11e05df3b1SJaegeuk Kim #include <linux/backing-dev.h> 12e05df3b1SJaegeuk Kim #include <linux/blkdev.h> 13e05df3b1SJaegeuk Kim #include <linux/pagevec.h> 14e05df3b1SJaegeuk Kim #include <linux/swap.h> 15e05df3b1SJaegeuk Kim 16e05df3b1SJaegeuk Kim #include "f2fs.h" 17e05df3b1SJaegeuk Kim #include "node.h" 18e05df3b1SJaegeuk Kim #include "segment.h" 1987905682SYunlei He #include "xattr.h" 2051dd6249SNamjae Jeon #include <trace/events/f2fs.h> 21e05df3b1SJaegeuk Kim 224d57b86dSChao Yu #define on_f2fs_build_free_nids(nmi) mutex_is_locked(&(nm_i)->build_lock) 23f978f5a0SGu Zheng 24e05df3b1SJaegeuk Kim static struct kmem_cache *nat_entry_slab; 25e05df3b1SJaegeuk Kim static struct kmem_cache *free_nid_slab; 26aec71382SChao Yu static struct kmem_cache *nat_entry_set_slab; 2750fa53ecSChao Yu static struct kmem_cache *fsync_node_entry_slab; 28e05df3b1SJaegeuk Kim 29a4f843bdSJaegeuk Kim /* 30a4f843bdSJaegeuk Kim * Check whether the given nid is within node id range. 31a4f843bdSJaegeuk Kim */ 324d57b86dSChao Yu int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid) 33a4f843bdSJaegeuk Kim { 34a4f843bdSJaegeuk Kim if (unlikely(nid < F2FS_ROOT_INO(sbi) || nid >= NM_I(sbi)->max_nid)) { 35a4f843bdSJaegeuk Kim set_sbi_flag(sbi, SBI_NEED_FSCK); 36dcbb4c10SJoe Perches f2fs_warn(sbi, "%s: out-of-range nid=%x, run fsck to fix.", 37a4f843bdSJaegeuk Kim __func__, nid); 3810f966bbSChao Yu return -EFSCORRUPTED; 39a4f843bdSJaegeuk Kim } 40a4f843bdSJaegeuk Kim return 0; 41a4f843bdSJaegeuk Kim } 42a4f843bdSJaegeuk Kim 434d57b86dSChao Yu bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type) 44cdfc41c1SJaegeuk Kim { 456fb03f3aSJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 46d6d2b491SSahitya Tummala struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; 47cdfc41c1SJaegeuk Kim struct sysinfo val; 48e5e7ea3cSJaegeuk Kim unsigned long avail_ram; 49cdfc41c1SJaegeuk Kim unsigned long mem_size = 0; 506fb03f3aSJaegeuk Kim bool res = false; 51cdfc41c1SJaegeuk Kim 52d6d2b491SSahitya Tummala if (!nm_i) 53d6d2b491SSahitya Tummala return true; 54d6d2b491SSahitya Tummala 55cdfc41c1SJaegeuk Kim si_meminfo(&val); 56e5e7ea3cSJaegeuk Kim 57e5e7ea3cSJaegeuk Kim /* only uses low memory */ 58e5e7ea3cSJaegeuk Kim avail_ram = val.totalram - val.totalhigh; 59e5e7ea3cSJaegeuk Kim 60429511cdSChao Yu /* 61429511cdSChao Yu * give 25%, 25%, 50%, 50%, 50% memory for each components respectively 62429511cdSChao Yu */ 636fb03f3aSJaegeuk Kim if (type == FREE_NIDS) { 649a4ffdf5SChao Yu mem_size = (nm_i->nid_cnt[FREE_NID] * 65b8559dc2SChao Yu sizeof(struct free_nid)) >> PAGE_SHIFT; 66e5e7ea3cSJaegeuk Kim res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 2); 676fb03f3aSJaegeuk Kim } else if (type == NAT_ENTRIES) { 68a95ba66aSJaegeuk Kim mem_size = (nm_i->nat_cnt[TOTAL_NAT] * 69a95ba66aSJaegeuk Kim sizeof(struct nat_entry)) >> PAGE_SHIFT; 70e5e7ea3cSJaegeuk Kim res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 2); 71e589c2c4SJaegeuk Kim if (excess_cached_nats(sbi)) 72e589c2c4SJaegeuk Kim res = false; 73a1257023SJaegeuk Kim } else if (type == DIRTY_DENTS) { 74a1257023SJaegeuk Kim if (sbi->sb->s_bdi->wb.dirty_exceeded) 75a1257023SJaegeuk Kim return false; 76a1257023SJaegeuk Kim mem_size = get_pages(sbi, F2FS_DIRTY_DENTS); 77a1257023SJaegeuk Kim res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 1); 78e5e7ea3cSJaegeuk Kim } else if (type == INO_ENTRIES) { 79e5e7ea3cSJaegeuk Kim int i; 80e5e7ea3cSJaegeuk Kim 8139d787beSChao Yu for (i = 0; i < MAX_INO_ENTRY; i++) 828f73cbb7SKinglong Mee mem_size += sbi->im[i].ino_num * 838f73cbb7SKinglong Mee sizeof(struct ino_entry); 848f73cbb7SKinglong Mee mem_size >>= PAGE_SHIFT; 85e5e7ea3cSJaegeuk Kim res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 1); 86429511cdSChao Yu } else if (type == EXTENT_CACHE) { 877441ccefSJaegeuk Kim mem_size = (atomic_read(&sbi->total_ext_tree) * 887441ccefSJaegeuk Kim sizeof(struct extent_tree) + 89429511cdSChao Yu atomic_read(&sbi->total_ext_node) * 9009cbfeafSKirill A. Shutemov sizeof(struct extent_node)) >> PAGE_SHIFT; 91429511cdSChao Yu res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 1); 9257864ae5SJaegeuk Kim } else if (type == INMEM_PAGES) { 9357864ae5SJaegeuk Kim /* it allows 20% / total_ram for inmemory pages */ 9457864ae5SJaegeuk Kim mem_size = get_pages(sbi, F2FS_INMEM_PAGES); 9557864ae5SJaegeuk Kim res = mem_size < (val.totalram / 5); 96d6d2b491SSahitya Tummala } else if (type == DISCARD_CACHE) { 97d6d2b491SSahitya Tummala mem_size = (atomic_read(&dcc->discard_cmd_cnt) * 98d6d2b491SSahitya Tummala sizeof(struct discard_cmd)) >> PAGE_SHIFT; 99d6d2b491SSahitya Tummala res = mem_size < (avail_ram * nm_i->ram_thresh / 100); 1006ce19affSChao Yu } else if (type == COMPRESS_PAGE) { 1016ce19affSChao Yu #ifdef CONFIG_F2FS_FS_COMPRESSION 1026ce19affSChao Yu unsigned long free_ram = val.freeram; 1036ce19affSChao Yu 1046ce19affSChao Yu /* 1056ce19affSChao Yu * free memory is lower than watermark or cached page count 1066ce19affSChao Yu * exceed threshold, deny caching compress page. 1076ce19affSChao Yu */ 1086ce19affSChao Yu res = (free_ram > avail_ram * sbi->compress_watermark / 100) && 1096ce19affSChao Yu (COMPRESS_MAPPING(sbi)->nrpages < 1106ce19affSChao Yu free_ram * sbi->compress_percent / 100); 1116ce19affSChao Yu #else 1126ce19affSChao Yu res = false; 1136ce19affSChao Yu #endif 1141e84371fSJaegeuk Kim } else { 1151663cae4SJaegeuk Kim if (!sbi->sb->s_bdi->wb.dirty_exceeded) 1161663cae4SJaegeuk Kim return true; 1176fb03f3aSJaegeuk Kim } 1186fb03f3aSJaegeuk Kim return res; 119cdfc41c1SJaegeuk Kim } 120cdfc41c1SJaegeuk Kim 121e05df3b1SJaegeuk Kim static void clear_node_page_dirty(struct page *page) 122e05df3b1SJaegeuk Kim { 123e05df3b1SJaegeuk Kim if (PageDirty(page)) { 1245ec2d99dSMatthew Wilcox f2fs_clear_page_cache_dirty_tag(page); 125e05df3b1SJaegeuk Kim clear_page_dirty_for_io(page); 126aec2f729SChao Yu dec_page_count(F2FS_P_SB(page), F2FS_DIRTY_NODES); 127e05df3b1SJaegeuk Kim } 128e05df3b1SJaegeuk Kim ClearPageUptodate(page); 129e05df3b1SJaegeuk Kim } 130e05df3b1SJaegeuk Kim 131e05df3b1SJaegeuk Kim static struct page *get_current_nat_page(struct f2fs_sb_info *sbi, nid_t nid) 132e05df3b1SJaegeuk Kim { 1333acc4522SJaegeuk Kim return f2fs_get_meta_page_retry(sbi, current_nat_addr(sbi, nid)); 134e05df3b1SJaegeuk Kim } 135e05df3b1SJaegeuk Kim 136e05df3b1SJaegeuk Kim static struct page *get_next_nat_page(struct f2fs_sb_info *sbi, nid_t nid) 137e05df3b1SJaegeuk Kim { 138e05df3b1SJaegeuk Kim struct page *src_page; 139e05df3b1SJaegeuk Kim struct page *dst_page; 140e05df3b1SJaegeuk Kim pgoff_t dst_off; 141e05df3b1SJaegeuk Kim void *src_addr; 142e05df3b1SJaegeuk Kim void *dst_addr; 143e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 144e05df3b1SJaegeuk Kim 14580551d17SChao Yu dst_off = next_nat_addr(sbi, current_nat_addr(sbi, nid)); 146e05df3b1SJaegeuk Kim 147e05df3b1SJaegeuk Kim /* get current nat block page with lock */ 14880551d17SChao Yu src_page = get_current_nat_page(sbi, nid); 149edc55aafSJaegeuk Kim if (IS_ERR(src_page)) 150edc55aafSJaegeuk Kim return src_page; 1514d57b86dSChao Yu dst_page = f2fs_grab_meta_page(sbi, dst_off); 1529850cf4aSJaegeuk Kim f2fs_bug_on(sbi, PageDirty(src_page)); 153e05df3b1SJaegeuk Kim 154e05df3b1SJaegeuk Kim src_addr = page_address(src_page); 155e05df3b1SJaegeuk Kim dst_addr = page_address(dst_page); 15609cbfeafSKirill A. Shutemov memcpy(dst_addr, src_addr, PAGE_SIZE); 157e05df3b1SJaegeuk Kim set_page_dirty(dst_page); 158e05df3b1SJaegeuk Kim f2fs_put_page(src_page, 1); 159e05df3b1SJaegeuk Kim 160e05df3b1SJaegeuk Kim set_to_next_nat(nm_i, nid); 161e05df3b1SJaegeuk Kim 162e05df3b1SJaegeuk Kim return dst_page; 163e05df3b1SJaegeuk Kim } 164e05df3b1SJaegeuk Kim 16512f9ef37SYunlei He static struct nat_entry *__alloc_nat_entry(nid_t nid, bool no_fail) 16612f9ef37SYunlei He { 16712f9ef37SYunlei He struct nat_entry *new; 16812f9ef37SYunlei He 16912f9ef37SYunlei He if (no_fail) 1702882d343SChao Yu new = f2fs_kmem_cache_alloc(nat_entry_slab, GFP_F2FS_ZERO); 17112f9ef37SYunlei He else 1722882d343SChao Yu new = kmem_cache_alloc(nat_entry_slab, GFP_F2FS_ZERO); 17312f9ef37SYunlei He if (new) { 17412f9ef37SYunlei He nat_set_nid(new, nid); 17512f9ef37SYunlei He nat_reset_flag(new); 17612f9ef37SYunlei He } 17712f9ef37SYunlei He return new; 17812f9ef37SYunlei He } 17912f9ef37SYunlei He 18012f9ef37SYunlei He static void __free_nat_entry(struct nat_entry *e) 18112f9ef37SYunlei He { 18212f9ef37SYunlei He kmem_cache_free(nat_entry_slab, e); 18312f9ef37SYunlei He } 18412f9ef37SYunlei He 18512f9ef37SYunlei He /* must be locked by nat_tree_lock */ 18612f9ef37SYunlei He static struct nat_entry *__init_nat_entry(struct f2fs_nm_info *nm_i, 18712f9ef37SYunlei He struct nat_entry *ne, struct f2fs_nat_entry *raw_ne, bool no_fail) 18812f9ef37SYunlei He { 18912f9ef37SYunlei He if (no_fail) 19012f9ef37SYunlei He f2fs_radix_tree_insert(&nm_i->nat_root, nat_get_nid(ne), ne); 19112f9ef37SYunlei He else if (radix_tree_insert(&nm_i->nat_root, nat_get_nid(ne), ne)) 19212f9ef37SYunlei He return NULL; 19312f9ef37SYunlei He 19412f9ef37SYunlei He if (raw_ne) 19512f9ef37SYunlei He node_info_from_raw_nat(&ne->ni, raw_ne); 19622969158SChao Yu 19722969158SChao Yu spin_lock(&nm_i->nat_list_lock); 19812f9ef37SYunlei He list_add_tail(&ne->list, &nm_i->nat_entries); 19922969158SChao Yu spin_unlock(&nm_i->nat_list_lock); 20022969158SChao Yu 201a95ba66aSJaegeuk Kim nm_i->nat_cnt[TOTAL_NAT]++; 202a95ba66aSJaegeuk Kim nm_i->nat_cnt[RECLAIMABLE_NAT]++; 20312f9ef37SYunlei He return ne; 20412f9ef37SYunlei He } 20512f9ef37SYunlei He 206e05df3b1SJaegeuk Kim static struct nat_entry *__lookup_nat_cache(struct f2fs_nm_info *nm_i, nid_t n) 207e05df3b1SJaegeuk Kim { 20822969158SChao Yu struct nat_entry *ne; 20922969158SChao Yu 21022969158SChao Yu ne = radix_tree_lookup(&nm_i->nat_root, n); 21122969158SChao Yu 21222969158SChao Yu /* for recent accessed nat entry, move it to tail of lru list */ 21322969158SChao Yu if (ne && !get_nat_flag(ne, IS_DIRTY)) { 21422969158SChao Yu spin_lock(&nm_i->nat_list_lock); 21522969158SChao Yu if (!list_empty(&ne->list)) 21622969158SChao Yu list_move_tail(&ne->list, &nm_i->nat_entries); 21722969158SChao Yu spin_unlock(&nm_i->nat_list_lock); 21822969158SChao Yu } 21922969158SChao Yu 22022969158SChao Yu return ne; 221e05df3b1SJaegeuk Kim } 222e05df3b1SJaegeuk Kim 223e05df3b1SJaegeuk Kim static unsigned int __gang_lookup_nat_cache(struct f2fs_nm_info *nm_i, 224e05df3b1SJaegeuk Kim nid_t start, unsigned int nr, struct nat_entry **ep) 225e05df3b1SJaegeuk Kim { 226e05df3b1SJaegeuk Kim return radix_tree_gang_lookup(&nm_i->nat_root, (void **)ep, start, nr); 227e05df3b1SJaegeuk Kim } 228e05df3b1SJaegeuk Kim 229e05df3b1SJaegeuk Kim static void __del_from_nat_cache(struct f2fs_nm_info *nm_i, struct nat_entry *e) 230e05df3b1SJaegeuk Kim { 231e05df3b1SJaegeuk Kim radix_tree_delete(&nm_i->nat_root, nat_get_nid(e)); 232a95ba66aSJaegeuk Kim nm_i->nat_cnt[TOTAL_NAT]--; 233a95ba66aSJaegeuk Kim nm_i->nat_cnt[RECLAIMABLE_NAT]--; 23412f9ef37SYunlei He __free_nat_entry(e); 235e05df3b1SJaegeuk Kim } 236e05df3b1SJaegeuk Kim 237780de47cSChao Yu static struct nat_entry_set *__grab_nat_entry_set(struct f2fs_nm_info *nm_i, 238309cc2b6SJaegeuk Kim struct nat_entry *ne) 239309cc2b6SJaegeuk Kim { 240309cc2b6SJaegeuk Kim nid_t set = NAT_BLOCK_OFFSET(ne->ni.nid); 241309cc2b6SJaegeuk Kim struct nat_entry_set *head; 242309cc2b6SJaegeuk Kim 243309cc2b6SJaegeuk Kim head = radix_tree_lookup(&nm_i->nat_set_root, set); 244309cc2b6SJaegeuk Kim if (!head) { 24580c54505SJaegeuk Kim head = f2fs_kmem_cache_alloc(nat_entry_set_slab, GFP_NOFS); 246309cc2b6SJaegeuk Kim 247309cc2b6SJaegeuk Kim INIT_LIST_HEAD(&head->entry_list); 248309cc2b6SJaegeuk Kim INIT_LIST_HEAD(&head->set_list); 249309cc2b6SJaegeuk Kim head->set = set; 250309cc2b6SJaegeuk Kim head->entry_cnt = 0; 2519be32d72SJaegeuk Kim f2fs_radix_tree_insert(&nm_i->nat_set_root, set, head); 252309cc2b6SJaegeuk Kim } 253780de47cSChao Yu return head; 254780de47cSChao Yu } 255780de47cSChao Yu 256780de47cSChao Yu static void __set_nat_cache_dirty(struct f2fs_nm_info *nm_i, 257780de47cSChao Yu struct nat_entry *ne) 258780de47cSChao Yu { 259780de47cSChao Yu struct nat_entry_set *head; 260780de47cSChao Yu bool new_ne = nat_get_blkaddr(ne) == NEW_ADDR; 261780de47cSChao Yu 262780de47cSChao Yu if (!new_ne) 263780de47cSChao Yu head = __grab_nat_entry_set(nm_i, ne); 264780de47cSChao Yu 265780de47cSChao Yu /* 266780de47cSChao Yu * update entry_cnt in below condition: 267780de47cSChao Yu * 1. update NEW_ADDR to valid block address; 268780de47cSChao Yu * 2. update old block address to new one; 269780de47cSChao Yu */ 270780de47cSChao Yu if (!new_ne && (get_nat_flag(ne, IS_PREALLOC) || 271780de47cSChao Yu !get_nat_flag(ne, IS_DIRTY))) 272780de47cSChao Yu head->entry_cnt++; 273780de47cSChao Yu 274780de47cSChao Yu set_nat_flag(ne, IS_PREALLOC, new_ne); 275febeca6dSChao Yu 276febeca6dSChao Yu if (get_nat_flag(ne, IS_DIRTY)) 277febeca6dSChao Yu goto refresh_list; 278febeca6dSChao Yu 279a95ba66aSJaegeuk Kim nm_i->nat_cnt[DIRTY_NAT]++; 280a95ba66aSJaegeuk Kim nm_i->nat_cnt[RECLAIMABLE_NAT]--; 281309cc2b6SJaegeuk Kim set_nat_flag(ne, IS_DIRTY, true); 282febeca6dSChao Yu refresh_list: 28322969158SChao Yu spin_lock(&nm_i->nat_list_lock); 284780de47cSChao Yu if (new_ne) 285febeca6dSChao Yu list_del_init(&ne->list); 286febeca6dSChao Yu else 287febeca6dSChao Yu list_move_tail(&ne->list, &head->entry_list); 28822969158SChao Yu spin_unlock(&nm_i->nat_list_lock); 289309cc2b6SJaegeuk Kim } 290309cc2b6SJaegeuk Kim 291309cc2b6SJaegeuk Kim static void __clear_nat_cache_dirty(struct f2fs_nm_info *nm_i, 2920b28b71eSKinglong Mee struct nat_entry_set *set, struct nat_entry *ne) 293309cc2b6SJaegeuk Kim { 29422969158SChao Yu spin_lock(&nm_i->nat_list_lock); 295309cc2b6SJaegeuk Kim list_move_tail(&ne->list, &nm_i->nat_entries); 29622969158SChao Yu spin_unlock(&nm_i->nat_list_lock); 29722969158SChao Yu 298309cc2b6SJaegeuk Kim set_nat_flag(ne, IS_DIRTY, false); 2990b28b71eSKinglong Mee set->entry_cnt--; 300a95ba66aSJaegeuk Kim nm_i->nat_cnt[DIRTY_NAT]--; 301a95ba66aSJaegeuk Kim nm_i->nat_cnt[RECLAIMABLE_NAT]++; 302309cc2b6SJaegeuk Kim } 303309cc2b6SJaegeuk Kim 304309cc2b6SJaegeuk Kim static unsigned int __gang_lookup_nat_set(struct f2fs_nm_info *nm_i, 305309cc2b6SJaegeuk Kim nid_t start, unsigned int nr, struct nat_entry_set **ep) 306309cc2b6SJaegeuk Kim { 307309cc2b6SJaegeuk Kim return radix_tree_gang_lookup(&nm_i->nat_set_root, (void **)ep, 308309cc2b6SJaegeuk Kim start, nr); 309309cc2b6SJaegeuk Kim } 310309cc2b6SJaegeuk Kim 31150fa53ecSChao Yu bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page) 31250fa53ecSChao Yu { 31350fa53ecSChao Yu return NODE_MAPPING(sbi) == page->mapping && 31450fa53ecSChao Yu IS_DNODE(page) && is_cold_node(page); 31550fa53ecSChao Yu } 31650fa53ecSChao Yu 31750fa53ecSChao Yu void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi) 31850fa53ecSChao Yu { 31950fa53ecSChao Yu spin_lock_init(&sbi->fsync_node_lock); 32050fa53ecSChao Yu INIT_LIST_HEAD(&sbi->fsync_node_list); 32150fa53ecSChao Yu sbi->fsync_seg_id = 0; 32250fa53ecSChao Yu sbi->fsync_node_num = 0; 32350fa53ecSChao Yu } 32450fa53ecSChao Yu 32550fa53ecSChao Yu static unsigned int f2fs_add_fsync_node_entry(struct f2fs_sb_info *sbi, 32650fa53ecSChao Yu struct page *page) 32750fa53ecSChao Yu { 32850fa53ecSChao Yu struct fsync_node_entry *fn; 32950fa53ecSChao Yu unsigned long flags; 33050fa53ecSChao Yu unsigned int seq_id; 33150fa53ecSChao Yu 33250fa53ecSChao Yu fn = f2fs_kmem_cache_alloc(fsync_node_entry_slab, GFP_NOFS); 33350fa53ecSChao Yu 33450fa53ecSChao Yu get_page(page); 33550fa53ecSChao Yu fn->page = page; 33650fa53ecSChao Yu INIT_LIST_HEAD(&fn->list); 33750fa53ecSChao Yu 33850fa53ecSChao Yu spin_lock_irqsave(&sbi->fsync_node_lock, flags); 33950fa53ecSChao Yu list_add_tail(&fn->list, &sbi->fsync_node_list); 34050fa53ecSChao Yu fn->seq_id = sbi->fsync_seg_id++; 34150fa53ecSChao Yu seq_id = fn->seq_id; 34250fa53ecSChao Yu sbi->fsync_node_num++; 34350fa53ecSChao Yu spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); 34450fa53ecSChao Yu 34550fa53ecSChao Yu return seq_id; 34650fa53ecSChao Yu } 34750fa53ecSChao Yu 34850fa53ecSChao Yu void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page) 34950fa53ecSChao Yu { 35050fa53ecSChao Yu struct fsync_node_entry *fn; 35150fa53ecSChao Yu unsigned long flags; 35250fa53ecSChao Yu 35350fa53ecSChao Yu spin_lock_irqsave(&sbi->fsync_node_lock, flags); 35450fa53ecSChao Yu list_for_each_entry(fn, &sbi->fsync_node_list, list) { 35550fa53ecSChao Yu if (fn->page == page) { 35650fa53ecSChao Yu list_del(&fn->list); 35750fa53ecSChao Yu sbi->fsync_node_num--; 35850fa53ecSChao Yu spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); 35950fa53ecSChao Yu kmem_cache_free(fsync_node_entry_slab, fn); 36050fa53ecSChao Yu put_page(page); 36150fa53ecSChao Yu return; 36250fa53ecSChao Yu } 36350fa53ecSChao Yu } 36450fa53ecSChao Yu spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); 36550fa53ecSChao Yu f2fs_bug_on(sbi, 1); 36650fa53ecSChao Yu } 36750fa53ecSChao Yu 36850fa53ecSChao Yu void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi) 36950fa53ecSChao Yu { 37050fa53ecSChao Yu unsigned long flags; 37150fa53ecSChao Yu 37250fa53ecSChao Yu spin_lock_irqsave(&sbi->fsync_node_lock, flags); 37350fa53ecSChao Yu sbi->fsync_seg_id = 0; 37450fa53ecSChao Yu spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); 37550fa53ecSChao Yu } 37650fa53ecSChao Yu 3774d57b86dSChao Yu int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid) 3782dcf51abSJaegeuk Kim { 3792dcf51abSJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 3802dcf51abSJaegeuk Kim struct nat_entry *e; 3812dcf51abSJaegeuk Kim bool need = false; 3822dcf51abSJaegeuk Kim 383b873b798SJaegeuk Kim down_read(&nm_i->nat_tree_lock); 3842dcf51abSJaegeuk Kim e = __lookup_nat_cache(nm_i, nid); 3852dcf51abSJaegeuk Kim if (e) { 3862dcf51abSJaegeuk Kim if (!get_nat_flag(e, IS_CHECKPOINTED) && 3872dcf51abSJaegeuk Kim !get_nat_flag(e, HAS_FSYNCED_INODE)) 3882dcf51abSJaegeuk Kim need = true; 3892dcf51abSJaegeuk Kim } 390b873b798SJaegeuk Kim up_read(&nm_i->nat_tree_lock); 3912dcf51abSJaegeuk Kim return need; 3922dcf51abSJaegeuk Kim } 3932dcf51abSJaegeuk Kim 3944d57b86dSChao Yu bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid) 395e05df3b1SJaegeuk Kim { 396e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 397e05df3b1SJaegeuk Kim struct nat_entry *e; 39888bd02c9SJaegeuk Kim bool is_cp = true; 399e05df3b1SJaegeuk Kim 400b873b798SJaegeuk Kim down_read(&nm_i->nat_tree_lock); 401e05df3b1SJaegeuk Kim e = __lookup_nat_cache(nm_i, nid); 4027ef35e3bSJaegeuk Kim if (e && !get_nat_flag(e, IS_CHECKPOINTED)) 40388bd02c9SJaegeuk Kim is_cp = false; 404b873b798SJaegeuk Kim up_read(&nm_i->nat_tree_lock); 405e05df3b1SJaegeuk Kim return is_cp; 406e05df3b1SJaegeuk Kim } 407e05df3b1SJaegeuk Kim 4084d57b86dSChao Yu bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino) 409b6fe5873SJaegeuk Kim { 410b6fe5873SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 411b6fe5873SJaegeuk Kim struct nat_entry *e; 41288bd02c9SJaegeuk Kim bool need_update = true; 413b6fe5873SJaegeuk Kim 414b873b798SJaegeuk Kim down_read(&nm_i->nat_tree_lock); 41588bd02c9SJaegeuk Kim e = __lookup_nat_cache(nm_i, ino); 41688bd02c9SJaegeuk Kim if (e && get_nat_flag(e, HAS_LAST_FSYNC) && 41788bd02c9SJaegeuk Kim (get_nat_flag(e, IS_CHECKPOINTED) || 41888bd02c9SJaegeuk Kim get_nat_flag(e, HAS_FSYNCED_INODE))) 41988bd02c9SJaegeuk Kim need_update = false; 420b873b798SJaegeuk Kim up_read(&nm_i->nat_tree_lock); 42188bd02c9SJaegeuk Kim return need_update; 422b6fe5873SJaegeuk Kim } 423b6fe5873SJaegeuk Kim 42412f9ef37SYunlei He /* must be locked by nat_tree_lock */ 4251515aef0SChao Yu static void cache_nat_entry(struct f2fs_sb_info *sbi, nid_t nid, 426e05df3b1SJaegeuk Kim struct f2fs_nat_entry *ne) 427e05df3b1SJaegeuk Kim { 4281515aef0SChao Yu struct f2fs_nm_info *nm_i = NM_I(sbi); 42912f9ef37SYunlei He struct nat_entry *new, *e; 4309be32d72SJaegeuk Kim 43112f9ef37SYunlei He new = __alloc_nat_entry(nid, false); 43212f9ef37SYunlei He if (!new) 43312f9ef37SYunlei He return; 43412f9ef37SYunlei He 43512f9ef37SYunlei He down_write(&nm_i->nat_tree_lock); 436e05df3b1SJaegeuk Kim e = __lookup_nat_cache(nm_i, nid); 43712f9ef37SYunlei He if (!e) 43812f9ef37SYunlei He e = __init_nat_entry(nm_i, new, ne, false); 43912f9ef37SYunlei He else 4400c0b471eSEric Biggers f2fs_bug_on(sbi, nat_get_ino(e) != le32_to_cpu(ne->ino) || 4410c0b471eSEric Biggers nat_get_blkaddr(e) != 4420c0b471eSEric Biggers le32_to_cpu(ne->block_addr) || 4431515aef0SChao Yu nat_get_version(e) != ne->version); 44412f9ef37SYunlei He up_write(&nm_i->nat_tree_lock); 44512f9ef37SYunlei He if (e != new) 44612f9ef37SYunlei He __free_nat_entry(new); 447e05df3b1SJaegeuk Kim } 448e05df3b1SJaegeuk Kim 449e05df3b1SJaegeuk Kim static void set_node_addr(struct f2fs_sb_info *sbi, struct node_info *ni, 450479f40c4SJaegeuk Kim block_t new_blkaddr, bool fsync_done) 451e05df3b1SJaegeuk Kim { 452e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 453e05df3b1SJaegeuk Kim struct nat_entry *e; 45412f9ef37SYunlei He struct nat_entry *new = __alloc_nat_entry(ni->nid, true); 4559be32d72SJaegeuk Kim 456b873b798SJaegeuk Kim down_write(&nm_i->nat_tree_lock); 457e05df3b1SJaegeuk Kim e = __lookup_nat_cache(nm_i, ni->nid); 458e05df3b1SJaegeuk Kim if (!e) { 45912f9ef37SYunlei He e = __init_nat_entry(nm_i, new, NULL, true); 4605c27f4eeSChao Yu copy_node_info(&e->ni, ni); 4619850cf4aSJaegeuk Kim f2fs_bug_on(sbi, ni->blk_addr == NEW_ADDR); 462e05df3b1SJaegeuk Kim } else if (new_blkaddr == NEW_ADDR) { 463e05df3b1SJaegeuk Kim /* 464e05df3b1SJaegeuk Kim * when nid is reallocated, 465e05df3b1SJaegeuk Kim * previous nat entry can be remained in nat cache. 466e05df3b1SJaegeuk Kim * So, reinitialize it with new information. 467e05df3b1SJaegeuk Kim */ 4685c27f4eeSChao Yu copy_node_info(&e->ni, ni); 4699850cf4aSJaegeuk Kim f2fs_bug_on(sbi, ni->blk_addr != NULL_ADDR); 470e05df3b1SJaegeuk Kim } 47112f9ef37SYunlei He /* let's free early to reduce memory consumption */ 47212f9ef37SYunlei He if (e != new) 47312f9ef37SYunlei He __free_nat_entry(new); 474e05df3b1SJaegeuk Kim 475e05df3b1SJaegeuk Kim /* sanity check */ 4769850cf4aSJaegeuk Kim f2fs_bug_on(sbi, nat_get_blkaddr(e) != ni->blk_addr); 4779850cf4aSJaegeuk Kim f2fs_bug_on(sbi, nat_get_blkaddr(e) == NULL_ADDR && 478e05df3b1SJaegeuk Kim new_blkaddr == NULL_ADDR); 4799850cf4aSJaegeuk Kim f2fs_bug_on(sbi, nat_get_blkaddr(e) == NEW_ADDR && 480e05df3b1SJaegeuk Kim new_blkaddr == NEW_ADDR); 48193770ab7SChao Yu f2fs_bug_on(sbi, __is_valid_data_blkaddr(nat_get_blkaddr(e)) && 482e05df3b1SJaegeuk Kim new_blkaddr == NEW_ADDR); 483e05df3b1SJaegeuk Kim 484e1c42045Sarter97 /* increment version no as node is removed */ 485e05df3b1SJaegeuk Kim if (nat_get_blkaddr(e) != NEW_ADDR && new_blkaddr == NULL_ADDR) { 486e05df3b1SJaegeuk Kim unsigned char version = nat_get_version(e); 4875f029c04SYi Zhuang 488e05df3b1SJaegeuk Kim nat_set_version(e, inc_node_version(version)); 489e05df3b1SJaegeuk Kim } 490e05df3b1SJaegeuk Kim 491e05df3b1SJaegeuk Kim /* change address */ 492e05df3b1SJaegeuk Kim nat_set_blkaddr(e, new_blkaddr); 49393770ab7SChao Yu if (!__is_valid_data_blkaddr(new_blkaddr)) 49488bd02c9SJaegeuk Kim set_nat_flag(e, IS_CHECKPOINTED, false); 495e05df3b1SJaegeuk Kim __set_nat_cache_dirty(nm_i, e); 496479f40c4SJaegeuk Kim 497479f40c4SJaegeuk Kim /* update fsync_mark if its inode nat entry is still alive */ 498d5b692b7SChao Yu if (ni->nid != ni->ino) 499479f40c4SJaegeuk Kim e = __lookup_nat_cache(nm_i, ni->ino); 50088bd02c9SJaegeuk Kim if (e) { 50188bd02c9SJaegeuk Kim if (fsync_done && ni->nid == ni->ino) 50288bd02c9SJaegeuk Kim set_nat_flag(e, HAS_FSYNCED_INODE, true); 50388bd02c9SJaegeuk Kim set_nat_flag(e, HAS_LAST_FSYNC, fsync_done); 50488bd02c9SJaegeuk Kim } 505b873b798SJaegeuk Kim up_write(&nm_i->nat_tree_lock); 506e05df3b1SJaegeuk Kim } 507e05df3b1SJaegeuk Kim 5084d57b86dSChao Yu int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink) 509e05df3b1SJaegeuk Kim { 510e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 5111b38dc8eSJaegeuk Kim int nr = nr_shrink; 512e05df3b1SJaegeuk Kim 513b873b798SJaegeuk Kim if (!down_write_trylock(&nm_i->nat_tree_lock)) 514b873b798SJaegeuk Kim return 0; 515e05df3b1SJaegeuk Kim 51622969158SChao Yu spin_lock(&nm_i->nat_list_lock); 51722969158SChao Yu while (nr_shrink) { 518e05df3b1SJaegeuk Kim struct nat_entry *ne; 51922969158SChao Yu 52022969158SChao Yu if (list_empty(&nm_i->nat_entries)) 52122969158SChao Yu break; 52222969158SChao Yu 523e05df3b1SJaegeuk Kim ne = list_first_entry(&nm_i->nat_entries, 524e05df3b1SJaegeuk Kim struct nat_entry, list); 52522969158SChao Yu list_del(&ne->list); 52622969158SChao Yu spin_unlock(&nm_i->nat_list_lock); 52722969158SChao Yu 528e05df3b1SJaegeuk Kim __del_from_nat_cache(nm_i, ne); 529e05df3b1SJaegeuk Kim nr_shrink--; 53022969158SChao Yu 53122969158SChao Yu spin_lock(&nm_i->nat_list_lock); 532e05df3b1SJaegeuk Kim } 53322969158SChao Yu spin_unlock(&nm_i->nat_list_lock); 53422969158SChao Yu 535b873b798SJaegeuk Kim up_write(&nm_i->nat_tree_lock); 5361b38dc8eSJaegeuk Kim return nr - nr_shrink; 537e05df3b1SJaegeuk Kim } 538e05df3b1SJaegeuk Kim 5397735730dSChao Yu int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid, 5404d57b86dSChao Yu struct node_info *ni) 541e05df3b1SJaegeuk Kim { 542e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 543e05df3b1SJaegeuk Kim struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA); 544b7ad7512SChao Yu struct f2fs_journal *journal = curseg->journal; 545e05df3b1SJaegeuk Kim nid_t start_nid = START_NID(nid); 546e05df3b1SJaegeuk Kim struct f2fs_nat_block *nat_blk; 547e05df3b1SJaegeuk Kim struct page *page = NULL; 548e05df3b1SJaegeuk Kim struct f2fs_nat_entry ne; 549e05df3b1SJaegeuk Kim struct nat_entry *e; 55066a82d1fSYunlei He pgoff_t index; 55193770ab7SChao Yu block_t blkaddr; 552e05df3b1SJaegeuk Kim int i; 553e05df3b1SJaegeuk Kim 554e05df3b1SJaegeuk Kim ni->nid = nid; 5552eeb0dceSJaegeuk Kim retry: 556e05df3b1SJaegeuk Kim /* Check nat cache */ 557b873b798SJaegeuk Kim down_read(&nm_i->nat_tree_lock); 558e05df3b1SJaegeuk Kim e = __lookup_nat_cache(nm_i, nid); 559e05df3b1SJaegeuk Kim if (e) { 560e05df3b1SJaegeuk Kim ni->ino = nat_get_ino(e); 561e05df3b1SJaegeuk Kim ni->blk_addr = nat_get_blkaddr(e); 562e05df3b1SJaegeuk Kim ni->version = nat_get_version(e); 563b873b798SJaegeuk Kim up_read(&nm_i->nat_tree_lock); 5647735730dSChao Yu return 0; 5651515aef0SChao Yu } 566e05df3b1SJaegeuk Kim 5672eeb0dceSJaegeuk Kim /* 5682eeb0dceSJaegeuk Kim * Check current segment summary by trying to grab journal_rwsem first. 5692eeb0dceSJaegeuk Kim * This sem is on the critical path on the checkpoint requiring the above 5702eeb0dceSJaegeuk Kim * nat_tree_lock. Therefore, we should retry, if we failed to grab here 5712eeb0dceSJaegeuk Kim * while not bothering checkpoint. 5722eeb0dceSJaegeuk Kim */ 5732eeb0dceSJaegeuk Kim if (!rwsem_is_locked(&sbi->cp_global_sem)) { 574b7ad7512SChao Yu down_read(&curseg->journal_rwsem); 5752eeb0dceSJaegeuk Kim } else if (!down_read_trylock(&curseg->journal_rwsem)) { 5762eeb0dceSJaegeuk Kim up_read(&nm_i->nat_tree_lock); 5772eeb0dceSJaegeuk Kim goto retry; 5782eeb0dceSJaegeuk Kim } 5792eeb0dceSJaegeuk Kim 5804d57b86dSChao Yu i = f2fs_lookup_journal_in_cursum(journal, NAT_JOURNAL, nid, 0); 581e05df3b1SJaegeuk Kim if (i >= 0) { 582dfc08a12SChao Yu ne = nat_in_journal(journal, i); 583e05df3b1SJaegeuk Kim node_info_from_raw_nat(ni, &ne); 584e05df3b1SJaegeuk Kim } 585b7ad7512SChao Yu up_read(&curseg->journal_rwsem); 58666a82d1fSYunlei He if (i >= 0) { 58766a82d1fSYunlei He up_read(&nm_i->nat_tree_lock); 588e05df3b1SJaegeuk Kim goto cache; 58966a82d1fSYunlei He } 590e05df3b1SJaegeuk Kim 591e05df3b1SJaegeuk Kim /* Fill node_info from nat page */ 59266a82d1fSYunlei He index = current_nat_addr(sbi, nid); 59366a82d1fSYunlei He up_read(&nm_i->nat_tree_lock); 59466a82d1fSYunlei He 5954d57b86dSChao Yu page = f2fs_get_meta_page(sbi, index); 5967735730dSChao Yu if (IS_ERR(page)) 5977735730dSChao Yu return PTR_ERR(page); 5987735730dSChao Yu 599e05df3b1SJaegeuk Kim nat_blk = (struct f2fs_nat_block *)page_address(page); 600e05df3b1SJaegeuk Kim ne = nat_blk->entries[nid - start_nid]; 601e05df3b1SJaegeuk Kim node_info_from_raw_nat(ni, &ne); 602e05df3b1SJaegeuk Kim f2fs_put_page(page, 1); 603e05df3b1SJaegeuk Kim cache: 60493770ab7SChao Yu blkaddr = le32_to_cpu(ne.block_addr); 60593770ab7SChao Yu if (__is_valid_data_blkaddr(blkaddr) && 60693770ab7SChao Yu !f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE)) 60793770ab7SChao Yu return -EFAULT; 60893770ab7SChao Yu 609e05df3b1SJaegeuk Kim /* cache nat entry */ 6101515aef0SChao Yu cache_nat_entry(sbi, nid, &ne); 6117735730dSChao Yu return 0; 612e05df3b1SJaegeuk Kim } 613e05df3b1SJaegeuk Kim 61479344efbSJaegeuk Kim /* 61579344efbSJaegeuk Kim * readahead MAX_RA_NODE number of node pages. 61679344efbSJaegeuk Kim */ 6174d57b86dSChao Yu static void f2fs_ra_node_pages(struct page *parent, int start, int n) 61879344efbSJaegeuk Kim { 61979344efbSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_P_SB(parent); 62079344efbSJaegeuk Kim struct blk_plug plug; 62179344efbSJaegeuk Kim int i, end; 62279344efbSJaegeuk Kim nid_t nid; 62379344efbSJaegeuk Kim 62479344efbSJaegeuk Kim blk_start_plug(&plug); 62579344efbSJaegeuk Kim 62679344efbSJaegeuk Kim /* Then, try readahead for siblings of the desired node */ 62779344efbSJaegeuk Kim end = start + n; 62879344efbSJaegeuk Kim end = min(end, NIDS_PER_BLOCK); 62979344efbSJaegeuk Kim for (i = start; i < end; i++) { 63079344efbSJaegeuk Kim nid = get_nid(parent, i, false); 6314d57b86dSChao Yu f2fs_ra_node_page(sbi, nid); 63279344efbSJaegeuk Kim } 63379344efbSJaegeuk Kim 63479344efbSJaegeuk Kim blk_finish_plug(&plug); 63579344efbSJaegeuk Kim } 63679344efbSJaegeuk Kim 6374d57b86dSChao Yu pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs) 6383cf45747SChao Yu { 6393cf45747SChao Yu const long direct_index = ADDRS_PER_INODE(dn->inode); 640d02a6e61SChao Yu const long direct_blks = ADDRS_PER_BLOCK(dn->inode); 641d02a6e61SChao Yu const long indirect_blks = ADDRS_PER_BLOCK(dn->inode) * NIDS_PER_BLOCK; 642d02a6e61SChao Yu unsigned int skipped_unit = ADDRS_PER_BLOCK(dn->inode); 6433cf45747SChao Yu int cur_level = dn->cur_level; 6443cf45747SChao Yu int max_level = dn->max_level; 6453cf45747SChao Yu pgoff_t base = 0; 6463cf45747SChao Yu 6473cf45747SChao Yu if (!dn->max_level) 6483cf45747SChao Yu return pgofs + 1; 6493cf45747SChao Yu 6503cf45747SChao Yu while (max_level-- > cur_level) 6513cf45747SChao Yu skipped_unit *= NIDS_PER_BLOCK; 6523cf45747SChao Yu 6533cf45747SChao Yu switch (dn->max_level) { 6543cf45747SChao Yu case 3: 6553cf45747SChao Yu base += 2 * indirect_blks; 656df561f66SGustavo A. R. Silva fallthrough; 6573cf45747SChao Yu case 2: 6583cf45747SChao Yu base += 2 * direct_blks; 659df561f66SGustavo A. R. Silva fallthrough; 6603cf45747SChao Yu case 1: 6613cf45747SChao Yu base += direct_index; 6623cf45747SChao Yu break; 6633cf45747SChao Yu default: 6643cf45747SChao Yu f2fs_bug_on(F2FS_I_SB(dn->inode), 1); 6653cf45747SChao Yu } 6663cf45747SChao Yu 6673cf45747SChao Yu return ((pgofs - base) / skipped_unit + 1) * skipped_unit + base; 6683cf45747SChao Yu } 6693cf45747SChao Yu 6700a8165d7SJaegeuk Kim /* 671e05df3b1SJaegeuk Kim * The maximum depth is four. 672e05df3b1SJaegeuk Kim * Offset[0] will have raw inode offset. 673e05df3b1SJaegeuk Kim */ 67481ca7350SChao Yu static int get_node_path(struct inode *inode, long block, 675de93653fSJaegeuk Kim int offset[4], unsigned int noffset[4]) 676e05df3b1SJaegeuk Kim { 67781ca7350SChao Yu const long direct_index = ADDRS_PER_INODE(inode); 678d02a6e61SChao Yu const long direct_blks = ADDRS_PER_BLOCK(inode); 679e05df3b1SJaegeuk Kim const long dptrs_per_blk = NIDS_PER_BLOCK; 680d02a6e61SChao Yu const long indirect_blks = ADDRS_PER_BLOCK(inode) * NIDS_PER_BLOCK; 681e05df3b1SJaegeuk Kim const long dindirect_blks = indirect_blks * NIDS_PER_BLOCK; 682e05df3b1SJaegeuk Kim int n = 0; 683e05df3b1SJaegeuk Kim int level = 0; 684e05df3b1SJaegeuk Kim 685e05df3b1SJaegeuk Kim noffset[0] = 0; 686e05df3b1SJaegeuk Kim 687e05df3b1SJaegeuk Kim if (block < direct_index) { 68825c0a6e5SNamjae Jeon offset[n] = block; 689e05df3b1SJaegeuk Kim goto got; 690e05df3b1SJaegeuk Kim } 691e05df3b1SJaegeuk Kim block -= direct_index; 692e05df3b1SJaegeuk Kim if (block < direct_blks) { 693e05df3b1SJaegeuk Kim offset[n++] = NODE_DIR1_BLOCK; 694e05df3b1SJaegeuk Kim noffset[n] = 1; 69525c0a6e5SNamjae Jeon offset[n] = block; 696e05df3b1SJaegeuk Kim level = 1; 697e05df3b1SJaegeuk Kim goto got; 698e05df3b1SJaegeuk Kim } 699e05df3b1SJaegeuk Kim block -= direct_blks; 700e05df3b1SJaegeuk Kim if (block < direct_blks) { 701e05df3b1SJaegeuk Kim offset[n++] = NODE_DIR2_BLOCK; 702e05df3b1SJaegeuk Kim noffset[n] = 2; 70325c0a6e5SNamjae Jeon offset[n] = block; 704e05df3b1SJaegeuk Kim level = 1; 705e05df3b1SJaegeuk Kim goto got; 706e05df3b1SJaegeuk Kim } 707e05df3b1SJaegeuk Kim block -= direct_blks; 708e05df3b1SJaegeuk Kim if (block < indirect_blks) { 709e05df3b1SJaegeuk Kim offset[n++] = NODE_IND1_BLOCK; 710e05df3b1SJaegeuk Kim noffset[n] = 3; 711e05df3b1SJaegeuk Kim offset[n++] = block / direct_blks; 712e05df3b1SJaegeuk Kim noffset[n] = 4 + offset[n - 1]; 71325c0a6e5SNamjae Jeon offset[n] = block % direct_blks; 714e05df3b1SJaegeuk Kim level = 2; 715e05df3b1SJaegeuk Kim goto got; 716e05df3b1SJaegeuk Kim } 717e05df3b1SJaegeuk Kim block -= indirect_blks; 718e05df3b1SJaegeuk Kim if (block < indirect_blks) { 719e05df3b1SJaegeuk Kim offset[n++] = NODE_IND2_BLOCK; 720e05df3b1SJaegeuk Kim noffset[n] = 4 + dptrs_per_blk; 721e05df3b1SJaegeuk Kim offset[n++] = block / direct_blks; 722e05df3b1SJaegeuk Kim noffset[n] = 5 + dptrs_per_blk + offset[n - 1]; 72325c0a6e5SNamjae Jeon offset[n] = block % direct_blks; 724e05df3b1SJaegeuk Kim level = 2; 725e05df3b1SJaegeuk Kim goto got; 726e05df3b1SJaegeuk Kim } 727e05df3b1SJaegeuk Kim block -= indirect_blks; 728e05df3b1SJaegeuk Kim if (block < dindirect_blks) { 729e05df3b1SJaegeuk Kim offset[n++] = NODE_DIND_BLOCK; 730e05df3b1SJaegeuk Kim noffset[n] = 5 + (dptrs_per_blk * 2); 731e05df3b1SJaegeuk Kim offset[n++] = block / indirect_blks; 732e05df3b1SJaegeuk Kim noffset[n] = 6 + (dptrs_per_blk * 2) + 733e05df3b1SJaegeuk Kim offset[n - 1] * (dptrs_per_blk + 1); 734e05df3b1SJaegeuk Kim offset[n++] = (block / direct_blks) % dptrs_per_blk; 735e05df3b1SJaegeuk Kim noffset[n] = 7 + (dptrs_per_blk * 2) + 736e05df3b1SJaegeuk Kim offset[n - 2] * (dptrs_per_blk + 1) + 737e05df3b1SJaegeuk Kim offset[n - 1]; 73825c0a6e5SNamjae Jeon offset[n] = block % direct_blks; 739e05df3b1SJaegeuk Kim level = 3; 740e05df3b1SJaegeuk Kim goto got; 741e05df3b1SJaegeuk Kim } else { 742adb6dc19SJaegeuk Kim return -E2BIG; 743e05df3b1SJaegeuk Kim } 744e05df3b1SJaegeuk Kim got: 745e05df3b1SJaegeuk Kim return level; 746e05df3b1SJaegeuk Kim } 747e05df3b1SJaegeuk Kim 748e05df3b1SJaegeuk Kim /* 749e05df3b1SJaegeuk Kim * Caller should call f2fs_put_dnode(dn). 7504f4124d0SChao Yu * Also, it should grab and release a rwsem by calling f2fs_lock_op() and 7517a88ddb5SChao Yu * f2fs_unlock_op() only if mode is set with ALLOC_NODE. 752e05df3b1SJaegeuk Kim */ 7534d57b86dSChao Yu int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode) 754e05df3b1SJaegeuk Kim { 7554081363fSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); 756e05df3b1SJaegeuk Kim struct page *npage[4]; 757f1a3b98eSJaegeuk Kim struct page *parent = NULL; 758e05df3b1SJaegeuk Kim int offset[4]; 759e05df3b1SJaegeuk Kim unsigned int noffset[4]; 760e05df3b1SJaegeuk Kim nid_t nids[4]; 7613cf45747SChao Yu int level, i = 0; 762e05df3b1SJaegeuk Kim int err = 0; 763e05df3b1SJaegeuk Kim 76481ca7350SChao Yu level = get_node_path(dn->inode, index, offset, noffset); 765adb6dc19SJaegeuk Kim if (level < 0) 766adb6dc19SJaegeuk Kim return level; 767e05df3b1SJaegeuk Kim 768e05df3b1SJaegeuk Kim nids[0] = dn->inode->i_ino; 7691646cfacSJaegeuk Kim npage[0] = dn->inode_page; 7701646cfacSJaegeuk Kim 7711646cfacSJaegeuk Kim if (!npage[0]) { 7724d57b86dSChao Yu npage[0] = f2fs_get_node_page(sbi, nids[0]); 773e05df3b1SJaegeuk Kim if (IS_ERR(npage[0])) 774e05df3b1SJaegeuk Kim return PTR_ERR(npage[0]); 7751646cfacSJaegeuk Kim } 776f1a3b98eSJaegeuk Kim 777f1a3b98eSJaegeuk Kim /* if inline_data is set, should not report any block indices */ 778f1a3b98eSJaegeuk Kim if (f2fs_has_inline_data(dn->inode) && index) { 77976629165SJaegeuk Kim err = -ENOENT; 780f1a3b98eSJaegeuk Kim f2fs_put_page(npage[0], 1); 781f1a3b98eSJaegeuk Kim goto release_out; 782f1a3b98eSJaegeuk Kim } 783f1a3b98eSJaegeuk Kim 784e05df3b1SJaegeuk Kim parent = npage[0]; 78552c2db3fSChangman Lee if (level != 0) 786e05df3b1SJaegeuk Kim nids[1] = get_nid(parent, offset[0], true); 787e05df3b1SJaegeuk Kim dn->inode_page = npage[0]; 788e05df3b1SJaegeuk Kim dn->inode_page_locked = true; 789e05df3b1SJaegeuk Kim 790e05df3b1SJaegeuk Kim /* get indirect or direct nodes */ 791e05df3b1SJaegeuk Kim for (i = 1; i <= level; i++) { 792e05df3b1SJaegeuk Kim bool done = false; 793e05df3b1SJaegeuk Kim 794266e97a8SJaegeuk Kim if (!nids[i] && mode == ALLOC_NODE) { 795e05df3b1SJaegeuk Kim /* alloc new node */ 7964d57b86dSChao Yu if (!f2fs_alloc_nid(sbi, &(nids[i]))) { 797e05df3b1SJaegeuk Kim err = -ENOSPC; 798e05df3b1SJaegeuk Kim goto release_pages; 799e05df3b1SJaegeuk Kim } 800e05df3b1SJaegeuk Kim 801e05df3b1SJaegeuk Kim dn->nid = nids[i]; 8024d57b86dSChao Yu npage[i] = f2fs_new_node_page(dn, noffset[i]); 803e05df3b1SJaegeuk Kim if (IS_ERR(npage[i])) { 8044d57b86dSChao Yu f2fs_alloc_nid_failed(sbi, nids[i]); 805e05df3b1SJaegeuk Kim err = PTR_ERR(npage[i]); 806e05df3b1SJaegeuk Kim goto release_pages; 807e05df3b1SJaegeuk Kim } 808e05df3b1SJaegeuk Kim 809e05df3b1SJaegeuk Kim set_nid(parent, offset[i - 1], nids[i], i == 1); 8104d57b86dSChao Yu f2fs_alloc_nid_done(sbi, nids[i]); 811e05df3b1SJaegeuk Kim done = true; 812266e97a8SJaegeuk Kim } else if (mode == LOOKUP_NODE_RA && i == level && level > 1) { 8134d57b86dSChao Yu npage[i] = f2fs_get_node_page_ra(parent, offset[i - 1]); 814e05df3b1SJaegeuk Kim if (IS_ERR(npage[i])) { 815e05df3b1SJaegeuk Kim err = PTR_ERR(npage[i]); 816e05df3b1SJaegeuk Kim goto release_pages; 817e05df3b1SJaegeuk Kim } 818e05df3b1SJaegeuk Kim done = true; 819e05df3b1SJaegeuk Kim } 820e05df3b1SJaegeuk Kim if (i == 1) { 821e05df3b1SJaegeuk Kim dn->inode_page_locked = false; 822e05df3b1SJaegeuk Kim unlock_page(parent); 823e05df3b1SJaegeuk Kim } else { 824e05df3b1SJaegeuk Kim f2fs_put_page(parent, 1); 825e05df3b1SJaegeuk Kim } 826e05df3b1SJaegeuk Kim 827e05df3b1SJaegeuk Kim if (!done) { 8284d57b86dSChao Yu npage[i] = f2fs_get_node_page(sbi, nids[i]); 829e05df3b1SJaegeuk Kim if (IS_ERR(npage[i])) { 830e05df3b1SJaegeuk Kim err = PTR_ERR(npage[i]); 831e05df3b1SJaegeuk Kim f2fs_put_page(npage[0], 0); 832e05df3b1SJaegeuk Kim goto release_out; 833e05df3b1SJaegeuk Kim } 834e05df3b1SJaegeuk Kim } 835e05df3b1SJaegeuk Kim if (i < level) { 836e05df3b1SJaegeuk Kim parent = npage[i]; 837e05df3b1SJaegeuk Kim nids[i + 1] = get_nid(parent, offset[i], false); 838e05df3b1SJaegeuk Kim } 839e05df3b1SJaegeuk Kim } 840e05df3b1SJaegeuk Kim dn->nid = nids[level]; 841e05df3b1SJaegeuk Kim dn->ofs_in_node = offset[level]; 842e05df3b1SJaegeuk Kim dn->node_page = npage[level]; 843a2ced1ceSChao Yu dn->data_blkaddr = f2fs_data_blkaddr(dn); 844e05df3b1SJaegeuk Kim return 0; 845e05df3b1SJaegeuk Kim 846e05df3b1SJaegeuk Kim release_pages: 847e05df3b1SJaegeuk Kim f2fs_put_page(parent, 1); 848e05df3b1SJaegeuk Kim if (i > 1) 849e05df3b1SJaegeuk Kim f2fs_put_page(npage[0], 0); 850e05df3b1SJaegeuk Kim release_out: 851e05df3b1SJaegeuk Kim dn->inode_page = NULL; 852e05df3b1SJaegeuk Kim dn->node_page = NULL; 8533cf45747SChao Yu if (err == -ENOENT) { 8543cf45747SChao Yu dn->cur_level = i; 8553cf45747SChao Yu dn->max_level = level; 8560a2aa8fbSJaegeuk Kim dn->ofs_in_node = offset[level]; 8573cf45747SChao Yu } 858e05df3b1SJaegeuk Kim return err; 859e05df3b1SJaegeuk Kim } 860e05df3b1SJaegeuk Kim 8617735730dSChao Yu static int truncate_node(struct dnode_of_data *dn) 862e05df3b1SJaegeuk Kim { 8634081363fSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); 864e05df3b1SJaegeuk Kim struct node_info ni; 8657735730dSChao Yu int err; 8660ea295ddSPan Bian pgoff_t index; 867e05df3b1SJaegeuk Kim 8687735730dSChao Yu err = f2fs_get_node_info(sbi, dn->nid, &ni); 8697735730dSChao Yu if (err) 8707735730dSChao Yu return err; 871e05df3b1SJaegeuk Kim 872e05df3b1SJaegeuk Kim /* Deallocate node address */ 8734d57b86dSChao Yu f2fs_invalidate_blocks(sbi, ni.blk_addr); 874000519f2SChao Yu dec_valid_node_count(sbi, dn->inode, dn->nid == dn->inode->i_ino); 875479f40c4SJaegeuk Kim set_node_addr(sbi, &ni, NULL_ADDR, false); 876e05df3b1SJaegeuk Kim 877e05df3b1SJaegeuk Kim if (dn->nid == dn->inode->i_ino) { 8784d57b86dSChao Yu f2fs_remove_orphan_inode(sbi, dn->nid); 879e05df3b1SJaegeuk Kim dec_valid_inode_count(sbi); 8800f18b462SJaegeuk Kim f2fs_inode_synced(dn->inode); 881e05df3b1SJaegeuk Kim } 882000519f2SChao Yu 883e05df3b1SJaegeuk Kim clear_node_page_dirty(dn->node_page); 884caf0047eSChao Yu set_sbi_flag(sbi, SBI_IS_DIRTY); 885e05df3b1SJaegeuk Kim 8860ea295ddSPan Bian index = dn->node_page->index; 887e05df3b1SJaegeuk Kim f2fs_put_page(dn->node_page, 1); 888bf39c00aSJaegeuk Kim 889bf39c00aSJaegeuk Kim invalidate_mapping_pages(NODE_MAPPING(sbi), 8900ea295ddSPan Bian index, index); 891bf39c00aSJaegeuk Kim 892e05df3b1SJaegeuk Kim dn->node_page = NULL; 89351dd6249SNamjae Jeon trace_f2fs_truncate_node(dn->inode, dn->nid, ni.blk_addr); 8947735730dSChao Yu 8957735730dSChao Yu return 0; 896e05df3b1SJaegeuk Kim } 897e05df3b1SJaegeuk Kim 898e05df3b1SJaegeuk Kim static int truncate_dnode(struct dnode_of_data *dn) 899e05df3b1SJaegeuk Kim { 900e05df3b1SJaegeuk Kim struct page *page; 9017735730dSChao Yu int err; 902e05df3b1SJaegeuk Kim 903e05df3b1SJaegeuk Kim if (dn->nid == 0) 904e05df3b1SJaegeuk Kim return 1; 905e05df3b1SJaegeuk Kim 906e05df3b1SJaegeuk Kim /* get direct node */ 9074d57b86dSChao Yu page = f2fs_get_node_page(F2FS_I_SB(dn->inode), dn->nid); 90845586c70SMasahiro Yamada if (PTR_ERR(page) == -ENOENT) 909e05df3b1SJaegeuk Kim return 1; 910e05df3b1SJaegeuk Kim else if (IS_ERR(page)) 911e05df3b1SJaegeuk Kim return PTR_ERR(page); 912e05df3b1SJaegeuk Kim 913e05df3b1SJaegeuk Kim /* Make dnode_of_data for parameter */ 914e05df3b1SJaegeuk Kim dn->node_page = page; 915e05df3b1SJaegeuk Kim dn->ofs_in_node = 0; 9164d57b86dSChao Yu f2fs_truncate_data_blocks(dn); 9177735730dSChao Yu err = truncate_node(dn); 9187735730dSChao Yu if (err) 9197735730dSChao Yu return err; 9207735730dSChao Yu 921e05df3b1SJaegeuk Kim return 1; 922e05df3b1SJaegeuk Kim } 923e05df3b1SJaegeuk Kim 924e05df3b1SJaegeuk Kim static int truncate_nodes(struct dnode_of_data *dn, unsigned int nofs, 925e05df3b1SJaegeuk Kim int ofs, int depth) 926e05df3b1SJaegeuk Kim { 927e05df3b1SJaegeuk Kim struct dnode_of_data rdn = *dn; 928e05df3b1SJaegeuk Kim struct page *page; 929e05df3b1SJaegeuk Kim struct f2fs_node *rn; 930e05df3b1SJaegeuk Kim nid_t child_nid; 931e05df3b1SJaegeuk Kim unsigned int child_nofs; 932e05df3b1SJaegeuk Kim int freed = 0; 933e05df3b1SJaegeuk Kim int i, ret; 934e05df3b1SJaegeuk Kim 935e05df3b1SJaegeuk Kim if (dn->nid == 0) 936e05df3b1SJaegeuk Kim return NIDS_PER_BLOCK + 1; 937e05df3b1SJaegeuk Kim 93851dd6249SNamjae Jeon trace_f2fs_truncate_nodes_enter(dn->inode, dn->nid, dn->data_blkaddr); 93951dd6249SNamjae Jeon 9404d57b86dSChao Yu page = f2fs_get_node_page(F2FS_I_SB(dn->inode), dn->nid); 94151dd6249SNamjae Jeon if (IS_ERR(page)) { 94251dd6249SNamjae Jeon trace_f2fs_truncate_nodes_exit(dn->inode, PTR_ERR(page)); 943e05df3b1SJaegeuk Kim return PTR_ERR(page); 94451dd6249SNamjae Jeon } 945e05df3b1SJaegeuk Kim 9464d57b86dSChao Yu f2fs_ra_node_pages(page, ofs, NIDS_PER_BLOCK); 94779344efbSJaegeuk Kim 94845590710SGu Zheng rn = F2FS_NODE(page); 949e05df3b1SJaegeuk Kim if (depth < 3) { 950e05df3b1SJaegeuk Kim for (i = ofs; i < NIDS_PER_BLOCK; i++, freed++) { 951e05df3b1SJaegeuk Kim child_nid = le32_to_cpu(rn->in.nid[i]); 952e05df3b1SJaegeuk Kim if (child_nid == 0) 953e05df3b1SJaegeuk Kim continue; 954e05df3b1SJaegeuk Kim rdn.nid = child_nid; 955e05df3b1SJaegeuk Kim ret = truncate_dnode(&rdn); 956e05df3b1SJaegeuk Kim if (ret < 0) 957e05df3b1SJaegeuk Kim goto out_err; 95812719ae1SJaegeuk Kim if (set_nid(page, i, 0, false)) 95993bae099SJaegeuk Kim dn->node_changed = true; 960e05df3b1SJaegeuk Kim } 961e05df3b1SJaegeuk Kim } else { 962e05df3b1SJaegeuk Kim child_nofs = nofs + ofs * (NIDS_PER_BLOCK + 1) + 1; 963e05df3b1SJaegeuk Kim for (i = ofs; i < NIDS_PER_BLOCK; i++) { 964e05df3b1SJaegeuk Kim child_nid = le32_to_cpu(rn->in.nid[i]); 965e05df3b1SJaegeuk Kim if (child_nid == 0) { 966e05df3b1SJaegeuk Kim child_nofs += NIDS_PER_BLOCK + 1; 967e05df3b1SJaegeuk Kim continue; 968e05df3b1SJaegeuk Kim } 969e05df3b1SJaegeuk Kim rdn.nid = child_nid; 970e05df3b1SJaegeuk Kim ret = truncate_nodes(&rdn, child_nofs, 0, depth - 1); 971e05df3b1SJaegeuk Kim if (ret == (NIDS_PER_BLOCK + 1)) { 97212719ae1SJaegeuk Kim if (set_nid(page, i, 0, false)) 97393bae099SJaegeuk Kim dn->node_changed = true; 974e05df3b1SJaegeuk Kim child_nofs += ret; 975e05df3b1SJaegeuk Kim } else if (ret < 0 && ret != -ENOENT) { 976e05df3b1SJaegeuk Kim goto out_err; 977e05df3b1SJaegeuk Kim } 978e05df3b1SJaegeuk Kim } 979e05df3b1SJaegeuk Kim freed = child_nofs; 980e05df3b1SJaegeuk Kim } 981e05df3b1SJaegeuk Kim 982e05df3b1SJaegeuk Kim if (!ofs) { 983e05df3b1SJaegeuk Kim /* remove current indirect node */ 984e05df3b1SJaegeuk Kim dn->node_page = page; 9857735730dSChao Yu ret = truncate_node(dn); 9867735730dSChao Yu if (ret) 9877735730dSChao Yu goto out_err; 988e05df3b1SJaegeuk Kim freed++; 989e05df3b1SJaegeuk Kim } else { 990e05df3b1SJaegeuk Kim f2fs_put_page(page, 1); 991e05df3b1SJaegeuk Kim } 99251dd6249SNamjae Jeon trace_f2fs_truncate_nodes_exit(dn->inode, freed); 993e05df3b1SJaegeuk Kim return freed; 994e05df3b1SJaegeuk Kim 995e05df3b1SJaegeuk Kim out_err: 996e05df3b1SJaegeuk Kim f2fs_put_page(page, 1); 99751dd6249SNamjae Jeon trace_f2fs_truncate_nodes_exit(dn->inode, ret); 998e05df3b1SJaegeuk Kim return ret; 999e05df3b1SJaegeuk Kim } 1000e05df3b1SJaegeuk Kim 1001e05df3b1SJaegeuk Kim static int truncate_partial_nodes(struct dnode_of_data *dn, 1002e05df3b1SJaegeuk Kim struct f2fs_inode *ri, int *offset, int depth) 1003e05df3b1SJaegeuk Kim { 1004e05df3b1SJaegeuk Kim struct page *pages[2]; 1005e05df3b1SJaegeuk Kim nid_t nid[3]; 1006e05df3b1SJaegeuk Kim nid_t child_nid; 1007e05df3b1SJaegeuk Kim int err = 0; 1008e05df3b1SJaegeuk Kim int i; 1009e05df3b1SJaegeuk Kim int idx = depth - 2; 1010e05df3b1SJaegeuk Kim 1011e05df3b1SJaegeuk Kim nid[0] = le32_to_cpu(ri->i_nid[offset[0] - NODE_DIR1_BLOCK]); 1012e05df3b1SJaegeuk Kim if (!nid[0]) 1013e05df3b1SJaegeuk Kim return 0; 1014e05df3b1SJaegeuk Kim 1015e05df3b1SJaegeuk Kim /* get indirect nodes in the path */ 1016a225dca3Sshifei10.ge for (i = 0; i < idx + 1; i++) { 1017e1c42045Sarter97 /* reference count'll be increased */ 10184d57b86dSChao Yu pages[i] = f2fs_get_node_page(F2FS_I_SB(dn->inode), nid[i]); 1019e05df3b1SJaegeuk Kim if (IS_ERR(pages[i])) { 1020e05df3b1SJaegeuk Kim err = PTR_ERR(pages[i]); 1021a225dca3Sshifei10.ge idx = i - 1; 1022e05df3b1SJaegeuk Kim goto fail; 1023e05df3b1SJaegeuk Kim } 1024e05df3b1SJaegeuk Kim nid[i + 1] = get_nid(pages[i], offset[i + 1], false); 1025e05df3b1SJaegeuk Kim } 1026e05df3b1SJaegeuk Kim 10274d57b86dSChao Yu f2fs_ra_node_pages(pages[idx], offset[idx + 1], NIDS_PER_BLOCK); 102879344efbSJaegeuk Kim 1029e05df3b1SJaegeuk Kim /* free direct nodes linked to a partial indirect node */ 1030a225dca3Sshifei10.ge for (i = offset[idx + 1]; i < NIDS_PER_BLOCK; i++) { 1031e05df3b1SJaegeuk Kim child_nid = get_nid(pages[idx], i, false); 1032e05df3b1SJaegeuk Kim if (!child_nid) 1033e05df3b1SJaegeuk Kim continue; 1034e05df3b1SJaegeuk Kim dn->nid = child_nid; 1035e05df3b1SJaegeuk Kim err = truncate_dnode(dn); 1036e05df3b1SJaegeuk Kim if (err < 0) 1037e05df3b1SJaegeuk Kim goto fail; 103812719ae1SJaegeuk Kim if (set_nid(pages[idx], i, 0, false)) 103993bae099SJaegeuk Kim dn->node_changed = true; 1040e05df3b1SJaegeuk Kim } 1041e05df3b1SJaegeuk Kim 1042a225dca3Sshifei10.ge if (offset[idx + 1] == 0) { 1043e05df3b1SJaegeuk Kim dn->node_page = pages[idx]; 1044e05df3b1SJaegeuk Kim dn->nid = nid[idx]; 10457735730dSChao Yu err = truncate_node(dn); 10467735730dSChao Yu if (err) 10477735730dSChao Yu goto fail; 1048e05df3b1SJaegeuk Kim } else { 1049e05df3b1SJaegeuk Kim f2fs_put_page(pages[idx], 1); 1050e05df3b1SJaegeuk Kim } 1051e05df3b1SJaegeuk Kim offset[idx]++; 1052a225dca3Sshifei10.ge offset[idx + 1] = 0; 1053a225dca3Sshifei10.ge idx--; 1054e05df3b1SJaegeuk Kim fail: 1055a225dca3Sshifei10.ge for (i = idx; i >= 0; i--) 1056e05df3b1SJaegeuk Kim f2fs_put_page(pages[i], 1); 105751dd6249SNamjae Jeon 105851dd6249SNamjae Jeon trace_f2fs_truncate_partial_nodes(dn->inode, nid, depth, err); 105951dd6249SNamjae Jeon 1060e05df3b1SJaegeuk Kim return err; 1061e05df3b1SJaegeuk Kim } 1062e05df3b1SJaegeuk Kim 10630a8165d7SJaegeuk Kim /* 1064e05df3b1SJaegeuk Kim * All the block addresses of data and nodes should be nullified. 1065e05df3b1SJaegeuk Kim */ 10664d57b86dSChao Yu int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from) 1067e05df3b1SJaegeuk Kim { 10684081363fSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 1069e05df3b1SJaegeuk Kim int err = 0, cont = 1; 1070e05df3b1SJaegeuk Kim int level, offset[4], noffset[4]; 10717dd690c8SJaegeuk Kim unsigned int nofs = 0; 107258bfaf44SJaegeuk Kim struct f2fs_inode *ri; 1073e05df3b1SJaegeuk Kim struct dnode_of_data dn; 1074e05df3b1SJaegeuk Kim struct page *page; 1075e05df3b1SJaegeuk Kim 107651dd6249SNamjae Jeon trace_f2fs_truncate_inode_blocks_enter(inode, from); 107751dd6249SNamjae Jeon 107881ca7350SChao Yu level = get_node_path(inode, from, offset, noffset); 10799039d835SYubo Feng if (level < 0) { 10809039d835SYubo Feng trace_f2fs_truncate_inode_blocks_exit(inode, level); 1081adb6dc19SJaegeuk Kim return level; 10829039d835SYubo Feng } 1083ff373558SJaegeuk Kim 10844d57b86dSChao Yu page = f2fs_get_node_page(sbi, inode->i_ino); 108551dd6249SNamjae Jeon if (IS_ERR(page)) { 108651dd6249SNamjae Jeon trace_f2fs_truncate_inode_blocks_exit(inode, PTR_ERR(page)); 1087e05df3b1SJaegeuk Kim return PTR_ERR(page); 108851dd6249SNamjae Jeon } 1089e05df3b1SJaegeuk Kim 1090e05df3b1SJaegeuk Kim set_new_dnode(&dn, inode, page, NULL, 0); 1091e05df3b1SJaegeuk Kim unlock_page(page); 1092e05df3b1SJaegeuk Kim 109358bfaf44SJaegeuk Kim ri = F2FS_INODE(page); 1094e05df3b1SJaegeuk Kim switch (level) { 1095e05df3b1SJaegeuk Kim case 0: 1096e05df3b1SJaegeuk Kim case 1: 1097e05df3b1SJaegeuk Kim nofs = noffset[1]; 1098e05df3b1SJaegeuk Kim break; 1099e05df3b1SJaegeuk Kim case 2: 1100e05df3b1SJaegeuk Kim nofs = noffset[1]; 1101e05df3b1SJaegeuk Kim if (!offset[level - 1]) 1102e05df3b1SJaegeuk Kim goto skip_partial; 110358bfaf44SJaegeuk Kim err = truncate_partial_nodes(&dn, ri, offset, level); 1104e05df3b1SJaegeuk Kim if (err < 0 && err != -ENOENT) 1105e05df3b1SJaegeuk Kim goto fail; 1106e05df3b1SJaegeuk Kim nofs += 1 + NIDS_PER_BLOCK; 1107e05df3b1SJaegeuk Kim break; 1108e05df3b1SJaegeuk Kim case 3: 1109e05df3b1SJaegeuk Kim nofs = 5 + 2 * NIDS_PER_BLOCK; 1110e05df3b1SJaegeuk Kim if (!offset[level - 1]) 1111e05df3b1SJaegeuk Kim goto skip_partial; 111258bfaf44SJaegeuk Kim err = truncate_partial_nodes(&dn, ri, offset, level); 1113e05df3b1SJaegeuk Kim if (err < 0 && err != -ENOENT) 1114e05df3b1SJaegeuk Kim goto fail; 1115e05df3b1SJaegeuk Kim break; 1116e05df3b1SJaegeuk Kim default: 1117e05df3b1SJaegeuk Kim BUG(); 1118e05df3b1SJaegeuk Kim } 1119e05df3b1SJaegeuk Kim 1120e05df3b1SJaegeuk Kim skip_partial: 1121e05df3b1SJaegeuk Kim while (cont) { 112258bfaf44SJaegeuk Kim dn.nid = le32_to_cpu(ri->i_nid[offset[0] - NODE_DIR1_BLOCK]); 1123e05df3b1SJaegeuk Kim switch (offset[0]) { 1124e05df3b1SJaegeuk Kim case NODE_DIR1_BLOCK: 1125e05df3b1SJaegeuk Kim case NODE_DIR2_BLOCK: 1126e05df3b1SJaegeuk Kim err = truncate_dnode(&dn); 1127e05df3b1SJaegeuk Kim break; 1128e05df3b1SJaegeuk Kim 1129e05df3b1SJaegeuk Kim case NODE_IND1_BLOCK: 1130e05df3b1SJaegeuk Kim case NODE_IND2_BLOCK: 1131e05df3b1SJaegeuk Kim err = truncate_nodes(&dn, nofs, offset[1], 2); 1132e05df3b1SJaegeuk Kim break; 1133e05df3b1SJaegeuk Kim 1134e05df3b1SJaegeuk Kim case NODE_DIND_BLOCK: 1135e05df3b1SJaegeuk Kim err = truncate_nodes(&dn, nofs, offset[1], 3); 1136e05df3b1SJaegeuk Kim cont = 0; 1137e05df3b1SJaegeuk Kim break; 1138e05df3b1SJaegeuk Kim 1139e05df3b1SJaegeuk Kim default: 1140e05df3b1SJaegeuk Kim BUG(); 1141e05df3b1SJaegeuk Kim } 1142e05df3b1SJaegeuk Kim if (err < 0 && err != -ENOENT) 1143e05df3b1SJaegeuk Kim goto fail; 1144e05df3b1SJaegeuk Kim if (offset[1] == 0 && 114558bfaf44SJaegeuk Kim ri->i_nid[offset[0] - NODE_DIR1_BLOCK]) { 1146e05df3b1SJaegeuk Kim lock_page(page); 1147ff373558SJaegeuk Kim BUG_ON(page->mapping != NODE_MAPPING(sbi)); 1148bae0ee7aSChao Yu f2fs_wait_on_page_writeback(page, NODE, true, true); 114958bfaf44SJaegeuk Kim ri->i_nid[offset[0] - NODE_DIR1_BLOCK] = 0; 1150e05df3b1SJaegeuk Kim set_page_dirty(page); 1151e05df3b1SJaegeuk Kim unlock_page(page); 1152e05df3b1SJaegeuk Kim } 1153e05df3b1SJaegeuk Kim offset[1] = 0; 1154e05df3b1SJaegeuk Kim offset[0]++; 1155e05df3b1SJaegeuk Kim nofs += err; 1156e05df3b1SJaegeuk Kim } 1157e05df3b1SJaegeuk Kim fail: 1158e05df3b1SJaegeuk Kim f2fs_put_page(page, 0); 115951dd6249SNamjae Jeon trace_f2fs_truncate_inode_blocks_exit(inode, err); 1160e05df3b1SJaegeuk Kim return err > 0 ? 0 : err; 1161e05df3b1SJaegeuk Kim } 1162e05df3b1SJaegeuk Kim 11639c77f754SJaegeuk Kim /* caller must lock inode page */ 11644d57b86dSChao Yu int f2fs_truncate_xattr_node(struct inode *inode) 11654f16fb0fSJaegeuk Kim { 11664081363fSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 11674f16fb0fSJaegeuk Kim nid_t nid = F2FS_I(inode)->i_xattr_nid; 11684f16fb0fSJaegeuk Kim struct dnode_of_data dn; 11694f16fb0fSJaegeuk Kim struct page *npage; 11707735730dSChao Yu int err; 11714f16fb0fSJaegeuk Kim 11724f16fb0fSJaegeuk Kim if (!nid) 11734f16fb0fSJaegeuk Kim return 0; 11744f16fb0fSJaegeuk Kim 11754d57b86dSChao Yu npage = f2fs_get_node_page(sbi, nid); 11764f16fb0fSJaegeuk Kim if (IS_ERR(npage)) 11774f16fb0fSJaegeuk Kim return PTR_ERR(npage); 11784f16fb0fSJaegeuk Kim 11797735730dSChao Yu set_new_dnode(&dn, inode, NULL, npage, nid); 11807735730dSChao Yu err = truncate_node(&dn); 11817735730dSChao Yu if (err) { 11827735730dSChao Yu f2fs_put_page(npage, 1); 11837735730dSChao Yu return err; 11847735730dSChao Yu } 11857735730dSChao Yu 1186205b9822SJaegeuk Kim f2fs_i_xnid_write(inode, 0); 118765985d93SJaegeuk Kim 11884f16fb0fSJaegeuk Kim return 0; 11894f16fb0fSJaegeuk Kim } 11904f16fb0fSJaegeuk Kim 119139936837SJaegeuk Kim /* 11924f4124d0SChao Yu * Caller should grab and release a rwsem by calling f2fs_lock_op() and 11934f4124d0SChao Yu * f2fs_unlock_op(). 119439936837SJaegeuk Kim */ 11954d57b86dSChao Yu int f2fs_remove_inode_page(struct inode *inode) 1196e05df3b1SJaegeuk Kim { 1197e05df3b1SJaegeuk Kim struct dnode_of_data dn; 119813ec7297SChao Yu int err; 1199e05df3b1SJaegeuk Kim 1200c2e69583SJaegeuk Kim set_new_dnode(&dn, inode, NULL, NULL, inode->i_ino); 12014d57b86dSChao Yu err = f2fs_get_dnode_of_data(&dn, 0, LOOKUP_NODE); 120213ec7297SChao Yu if (err) 120313ec7297SChao Yu return err; 1204e05df3b1SJaegeuk Kim 12054d57b86dSChao Yu err = f2fs_truncate_xattr_node(inode); 120613ec7297SChao Yu if (err) { 1207c2e69583SJaegeuk Kim f2fs_put_dnode(&dn); 120813ec7297SChao Yu return err; 1209e05df3b1SJaegeuk Kim } 1210c2e69583SJaegeuk Kim 1211c2e69583SJaegeuk Kim /* remove potential inline_data blocks */ 1212c2e69583SJaegeuk Kim if (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || 1213c2e69583SJaegeuk Kim S_ISLNK(inode->i_mode)) 12144d57b86dSChao Yu f2fs_truncate_data_blocks_range(&dn, 1); 1215c2e69583SJaegeuk Kim 1216e1c42045Sarter97 /* 0 is possible, after f2fs_new_inode() has failed */ 12178d714f8aSJaegeuk Kim if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) { 12188d714f8aSJaegeuk Kim f2fs_put_dnode(&dn); 12198d714f8aSJaegeuk Kim return -EIO; 12208d714f8aSJaegeuk Kim } 12218b6810f8SChao Yu 12228b6810f8SChao Yu if (unlikely(inode->i_blocks != 0 && inode->i_blocks != 8)) { 1223097a7686SChao Yu f2fs_warn(F2FS_I_SB(inode), 1224097a7686SChao Yu "f2fs_remove_inode_page: inconsistent i_blocks, ino:%lu, iblocks:%llu", 1225dcbb4c10SJoe Perches inode->i_ino, (unsigned long long)inode->i_blocks); 12268b6810f8SChao Yu set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_FSCK); 12278b6810f8SChao Yu } 1228c2e69583SJaegeuk Kim 1229c2e69583SJaegeuk Kim /* will put inode & node pages */ 12307735730dSChao Yu err = truncate_node(&dn); 12317735730dSChao Yu if (err) { 12327735730dSChao Yu f2fs_put_dnode(&dn); 12337735730dSChao Yu return err; 12347735730dSChao Yu } 123513ec7297SChao Yu return 0; 1236e05df3b1SJaegeuk Kim } 1237e05df3b1SJaegeuk Kim 12384d57b86dSChao Yu struct page *f2fs_new_inode_page(struct inode *inode) 1239e05df3b1SJaegeuk Kim { 1240e05df3b1SJaegeuk Kim struct dnode_of_data dn; 1241e05df3b1SJaegeuk Kim 1242e05df3b1SJaegeuk Kim /* allocate inode page for new inode */ 1243e05df3b1SJaegeuk Kim set_new_dnode(&dn, inode, NULL, NULL, inode->i_ino); 124444a83ff6SJaegeuk Kim 124544a83ff6SJaegeuk Kim /* caller should f2fs_put_page(page, 1); */ 12464d57b86dSChao Yu return f2fs_new_node_page(&dn, 0); 1247e05df3b1SJaegeuk Kim } 1248e05df3b1SJaegeuk Kim 12494d57b86dSChao Yu struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs) 1250e05df3b1SJaegeuk Kim { 12514081363fSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); 125225cc5d3bSJaegeuk Kim struct node_info new_ni; 1253e05df3b1SJaegeuk Kim struct page *page; 1254e05df3b1SJaegeuk Kim int err; 1255e05df3b1SJaegeuk Kim 125691942321SJaegeuk Kim if (unlikely(is_inode_flag_set(dn->inode, FI_NO_ALLOC))) 1257e05df3b1SJaegeuk Kim return ERR_PTR(-EPERM); 1258e05df3b1SJaegeuk Kim 1259300e129cSJaegeuk Kim page = f2fs_grab_cache_page(NODE_MAPPING(sbi), dn->nid, false); 1260e05df3b1SJaegeuk Kim if (!page) 1261e05df3b1SJaegeuk Kim return ERR_PTR(-ENOMEM); 1262e05df3b1SJaegeuk Kim 12630abd675eSChao Yu if (unlikely((err = inc_valid_node_count(sbi, dn->inode, !ofs)))) 12649c02740cSJaegeuk Kim goto fail; 12650abd675eSChao Yu 126625cc5d3bSJaegeuk Kim #ifdef CONFIG_F2FS_CHECK_FS 12677735730dSChao Yu err = f2fs_get_node_info(sbi, dn->nid, &new_ni); 12687735730dSChao Yu if (err) { 12697735730dSChao Yu dec_valid_node_count(sbi, dn->inode, !ofs); 12707735730dSChao Yu goto fail; 12717735730dSChao Yu } 127225cc5d3bSJaegeuk Kim f2fs_bug_on(sbi, new_ni.blk_addr != NULL_ADDR); 127325cc5d3bSJaegeuk Kim #endif 127425cc5d3bSJaegeuk Kim new_ni.nid = dn->nid; 1275e05df3b1SJaegeuk Kim new_ni.ino = dn->inode->i_ino; 127625cc5d3bSJaegeuk Kim new_ni.blk_addr = NULL_ADDR; 127725cc5d3bSJaegeuk Kim new_ni.flag = 0; 127825cc5d3bSJaegeuk Kim new_ni.version = 0; 1279479f40c4SJaegeuk Kim set_node_addr(sbi, &new_ni, NEW_ADDR, false); 12809c02740cSJaegeuk Kim 1281bae0ee7aSChao Yu f2fs_wait_on_page_writeback(page, NODE, true, true); 12829c02740cSJaegeuk Kim fill_node_footer(page, dn->nid, dn->inode->i_ino, ofs, true); 1283c5667575SChao Yu set_cold_node(page, S_ISDIR(dn->inode->i_mode)); 1284237c0790SJaegeuk Kim if (!PageUptodate(page)) 12859c02740cSJaegeuk Kim SetPageUptodate(page); 128612719ae1SJaegeuk Kim if (set_page_dirty(page)) 128712719ae1SJaegeuk Kim dn->node_changed = true; 1288e05df3b1SJaegeuk Kim 12894bc8e9bcSChao Yu if (f2fs_has_xattr_block(ofs)) 1290205b9822SJaegeuk Kim f2fs_i_xnid_write(dn->inode, dn->nid); 1291479bd73aSJaegeuk Kim 1292e05df3b1SJaegeuk Kim if (ofs == 0) 1293e05df3b1SJaegeuk Kim inc_valid_inode_count(sbi); 1294e05df3b1SJaegeuk Kim return page; 1295e05df3b1SJaegeuk Kim 1296e05df3b1SJaegeuk Kim fail: 129771e9fec5SJaegeuk Kim clear_node_page_dirty(page); 1298e05df3b1SJaegeuk Kim f2fs_put_page(page, 1); 1299e05df3b1SJaegeuk Kim return ERR_PTR(err); 1300e05df3b1SJaegeuk Kim } 1301e05df3b1SJaegeuk Kim 130256ae674cSJaegeuk Kim /* 130356ae674cSJaegeuk Kim * Caller should do after getting the following values. 130456ae674cSJaegeuk Kim * 0: f2fs_put_page(page, 0) 130586531d6bSJaegeuk Kim * LOCKED_PAGE or error: f2fs_put_page(page, 1) 130656ae674cSJaegeuk Kim */ 130704d328deSMike Christie static int read_node_page(struct page *page, int op_flags) 1308e05df3b1SJaegeuk Kim { 13094081363fSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_P_SB(page); 1310e05df3b1SJaegeuk Kim struct node_info ni; 1311cf04e8ebSJaegeuk Kim struct f2fs_io_info fio = { 131205ca3632SJaegeuk Kim .sbi = sbi, 1313cf04e8ebSJaegeuk Kim .type = NODE, 131404d328deSMike Christie .op = REQ_OP_READ, 131504d328deSMike Christie .op_flags = op_flags, 131605ca3632SJaegeuk Kim .page = page, 13174375a336SJaegeuk Kim .encrypted_page = NULL, 1318cf04e8ebSJaegeuk Kim }; 13197735730dSChao Yu int err; 1320e05df3b1SJaegeuk Kim 132154c55c4eSWeichao Guo if (PageUptodate(page)) { 1322b42b179bSChao Yu if (!f2fs_inode_chksum_verify(sbi, page)) { 1323b42b179bSChao Yu ClearPageUptodate(page); 132410f966bbSChao Yu return -EFSBADCRC; 1325b42b179bSChao Yu } 13263bdad3c7SJaegeuk Kim return LOCKED_PAGE; 132754c55c4eSWeichao Guo } 13283bdad3c7SJaegeuk Kim 13297735730dSChao Yu err = f2fs_get_node_info(sbi, page->index, &ni); 13307735730dSChao Yu if (err) 13317735730dSChao Yu return err; 1332e05df3b1SJaegeuk Kim 1333*b7ec2061SJaegeuk Kim /* NEW_ADDR can be seen, after cp_error drops some dirty node pages */ 1334*b7ec2061SJaegeuk Kim if (unlikely(ni.blk_addr == NULL_ADDR || ni.blk_addr == NEW_ADDR) || 133583a3bfdbSJaegeuk Kim is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN)) { 13362bca1e23SJaegeuk Kim ClearPageUptodate(page); 1337e05df3b1SJaegeuk Kim return -ENOENT; 1338393ff91fSJaegeuk Kim } 1339393ff91fSJaegeuk Kim 13407a9d7548SChao Yu fio.new_blkaddr = fio.old_blkaddr = ni.blk_addr; 13418b83ac81SChao Yu 13428b83ac81SChao Yu err = f2fs_submit_page_bio(&fio); 13438b83ac81SChao Yu 13448b83ac81SChao Yu if (!err) 13458b83ac81SChao Yu f2fs_update_iostat(sbi, FS_NODE_READ_IO, F2FS_BLKSIZE); 13468b83ac81SChao Yu 13478b83ac81SChao Yu return err; 1348e05df3b1SJaegeuk Kim } 1349e05df3b1SJaegeuk Kim 13500a8165d7SJaegeuk Kim /* 1351e05df3b1SJaegeuk Kim * Readahead a node page 1352e05df3b1SJaegeuk Kim */ 13534d57b86dSChao Yu void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid) 1354e05df3b1SJaegeuk Kim { 1355e05df3b1SJaegeuk Kim struct page *apage; 135656ae674cSJaegeuk Kim int err; 1357e05df3b1SJaegeuk Kim 1358e8458725SChao Yu if (!nid) 1359e8458725SChao Yu return; 13604d57b86dSChao Yu if (f2fs_check_nid_range(sbi, nid)) 1361a4f843bdSJaegeuk Kim return; 1362e8458725SChao Yu 13635ec2d99dSMatthew Wilcox apage = xa_load(&NODE_MAPPING(sbi)->i_pages, nid); 1364999270deSFan Li if (apage) 1365393ff91fSJaegeuk Kim return; 1366e05df3b1SJaegeuk Kim 1367300e129cSJaegeuk Kim apage = f2fs_grab_cache_page(NODE_MAPPING(sbi), nid, false); 1368e05df3b1SJaegeuk Kim if (!apage) 1369e05df3b1SJaegeuk Kim return; 1370e05df3b1SJaegeuk Kim 137170246286SChristoph Hellwig err = read_node_page(apage, REQ_RAHEAD); 137286531d6bSJaegeuk Kim f2fs_put_page(apage, err ? 1 : 0); 1373e05df3b1SJaegeuk Kim } 1374e05df3b1SJaegeuk Kim 137517a0ee55SJaegeuk Kim static struct page *__get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid, 13760e022ea8SChao Yu struct page *parent, int start) 1377e05df3b1SJaegeuk Kim { 137856ae674cSJaegeuk Kim struct page *page; 137956ae674cSJaegeuk Kim int err; 13804aa69d56SJaegeuk Kim 13814aa69d56SJaegeuk Kim if (!nid) 13824aa69d56SJaegeuk Kim return ERR_PTR(-ENOENT); 13834d57b86dSChao Yu if (f2fs_check_nid_range(sbi, nid)) 1384a4f843bdSJaegeuk Kim return ERR_PTR(-EINVAL); 1385afcb7ca0SJaegeuk Kim repeat: 1386300e129cSJaegeuk Kim page = f2fs_grab_cache_page(NODE_MAPPING(sbi), nid, false); 1387e05df3b1SJaegeuk Kim if (!page) 1388e05df3b1SJaegeuk Kim return ERR_PTR(-ENOMEM); 1389e05df3b1SJaegeuk Kim 139070fd7614SChristoph Hellwig err = read_node_page(page, 0); 139186531d6bSJaegeuk Kim if (err < 0) { 139286531d6bSJaegeuk Kim f2fs_put_page(page, 1); 1393e05df3b1SJaegeuk Kim return ERR_PTR(err); 1394e1c51b9fSChao Yu } else if (err == LOCKED_PAGE) { 13951f258ec1SChao Yu err = 0; 1396e1c51b9fSChao Yu goto page_hit; 139786531d6bSJaegeuk Kim } 1398aaf96075SJaegeuk Kim 13990e022ea8SChao Yu if (parent) 14004d57b86dSChao Yu f2fs_ra_node_pages(parent, start + 1, MAX_RA_NODE); 14010e022ea8SChao Yu 1402e1c51b9fSChao Yu lock_page(page); 1403e1c51b9fSChao Yu 14044ef51a8fSJaegeuk Kim if (unlikely(page->mapping != NODE_MAPPING(sbi))) { 1405afcb7ca0SJaegeuk Kim f2fs_put_page(page, 1); 1406afcb7ca0SJaegeuk Kim goto repeat; 1407afcb7ca0SJaegeuk Kim } 14081563ac75SChao Yu 14091f258ec1SChao Yu if (unlikely(!PageUptodate(page))) { 14101f258ec1SChao Yu err = -EIO; 14111563ac75SChao Yu goto out_err; 14121f258ec1SChao Yu } 1413704956ecSChao Yu 1414704956ecSChao Yu if (!f2fs_inode_chksum_verify(sbi, page)) { 141510f966bbSChao Yu err = -EFSBADCRC; 1416704956ecSChao Yu goto out_err; 1417704956ecSChao Yu } 1418e1c51b9fSChao Yu page_hit: 14190c9df7fbSYunlong Song if (unlikely(nid != nid_of_node(page))) { 1420dcbb4c10SJoe Perches f2fs_warn(sbi, "inconsistent node block, nid:%lu, node_footer[nid:%u,ino:%u,ofs:%u,cpver:%llu,blkaddr:%u]", 14211f258ec1SChao Yu nid, nid_of_node(page), ino_of_node(page), 14221f258ec1SChao Yu ofs_of_node(page), cpver_of_node(page), 14231f258ec1SChao Yu next_blkaddr_of_node(page)); 14241f258ec1SChao Yu err = -EINVAL; 14250c9df7fbSYunlong Song out_err: 1426ee605234SJaegeuk Kim ClearPageUptodate(page); 14270c9df7fbSYunlong Song f2fs_put_page(page, 1); 14281f258ec1SChao Yu return ERR_PTR(err); 14290c9df7fbSYunlong Song } 1430e05df3b1SJaegeuk Kim return page; 1431e05df3b1SJaegeuk Kim } 1432e05df3b1SJaegeuk Kim 14334d57b86dSChao Yu struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid) 14340e022ea8SChao Yu { 14350e022ea8SChao Yu return __get_node_page(sbi, nid, NULL, 0); 14360e022ea8SChao Yu } 14370e022ea8SChao Yu 14384d57b86dSChao Yu struct page *f2fs_get_node_page_ra(struct page *parent, int start) 1439e05df3b1SJaegeuk Kim { 14404081363fSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_P_SB(parent); 14410e022ea8SChao Yu nid_t nid = get_nid(parent, start, false); 1442e05df3b1SJaegeuk Kim 14430e022ea8SChao Yu return __get_node_page(sbi, nid, parent, start); 1444e05df3b1SJaegeuk Kim } 1445e05df3b1SJaegeuk Kim 14462049d4fcSJaegeuk Kim static void flush_inline_data(struct f2fs_sb_info *sbi, nid_t ino) 14472049d4fcSJaegeuk Kim { 14482049d4fcSJaegeuk Kim struct inode *inode; 14492049d4fcSJaegeuk Kim struct page *page; 14500f3311a8SChao Yu int ret; 14512049d4fcSJaegeuk Kim 14522049d4fcSJaegeuk Kim /* should flush inline_data before evict_inode */ 14532049d4fcSJaegeuk Kim inode = ilookup(sbi->sb, ino); 14542049d4fcSJaegeuk Kim if (!inode) 14552049d4fcSJaegeuk Kim return; 14562049d4fcSJaegeuk Kim 145701eccef7SChao Yu page = f2fs_pagecache_get_page(inode->i_mapping, 0, 145801eccef7SChao Yu FGP_LOCK|FGP_NOWAIT, 0); 14592049d4fcSJaegeuk Kim if (!page) 14602049d4fcSJaegeuk Kim goto iput_out; 14612049d4fcSJaegeuk Kim 14622049d4fcSJaegeuk Kim if (!PageUptodate(page)) 14632049d4fcSJaegeuk Kim goto page_out; 14642049d4fcSJaegeuk Kim 14652049d4fcSJaegeuk Kim if (!PageDirty(page)) 14662049d4fcSJaegeuk Kim goto page_out; 14672049d4fcSJaegeuk Kim 14682049d4fcSJaegeuk Kim if (!clear_page_dirty_for_io(page)) 14692049d4fcSJaegeuk Kim goto page_out; 14702049d4fcSJaegeuk Kim 14710f3311a8SChao Yu ret = f2fs_write_inline_data(inode, page); 14722049d4fcSJaegeuk Kim inode_dec_dirty_pages(inode); 14734d57b86dSChao Yu f2fs_remove_dirty_inode(inode); 14740f3311a8SChao Yu if (ret) 14752049d4fcSJaegeuk Kim set_page_dirty(page); 14762049d4fcSJaegeuk Kim page_out: 14774a6de50dSJaegeuk Kim f2fs_put_page(page, 1); 14782049d4fcSJaegeuk Kim iput_out: 14792049d4fcSJaegeuk Kim iput(inode); 14802049d4fcSJaegeuk Kim } 14812049d4fcSJaegeuk Kim 1482608514deSJaegeuk Kim static struct page *last_fsync_dnode(struct f2fs_sb_info *sbi, nid_t ino) 1483e05df3b1SJaegeuk Kim { 1484028a63a6SJan Kara pgoff_t index; 1485e05df3b1SJaegeuk Kim struct pagevec pvec; 1486608514deSJaegeuk Kim struct page *last_page = NULL; 1487028a63a6SJan Kara int nr_pages; 148852681375SJaegeuk Kim 148986679820SMel Gorman pagevec_init(&pvec); 149052681375SJaegeuk Kim index = 0; 149152681375SJaegeuk Kim 1492028a63a6SJan Kara while ((nr_pages = pagevec_lookup_tag(&pvec, NODE_MAPPING(sbi), &index, 149367fd707fSJan Kara PAGECACHE_TAG_DIRTY))) { 1494028a63a6SJan Kara int i; 149552681375SJaegeuk Kim 149652681375SJaegeuk Kim for (i = 0; i < nr_pages; i++) { 149752681375SJaegeuk Kim struct page *page = pvec.pages[i]; 149852681375SJaegeuk Kim 149952681375SJaegeuk Kim if (unlikely(f2fs_cp_error(sbi))) { 1500608514deSJaegeuk Kim f2fs_put_page(last_page, 0); 150152681375SJaegeuk Kim pagevec_release(&pvec); 1502608514deSJaegeuk Kim return ERR_PTR(-EIO); 150352681375SJaegeuk Kim } 150452681375SJaegeuk Kim 150552681375SJaegeuk Kim if (!IS_DNODE(page) || !is_cold_node(page)) 150652681375SJaegeuk Kim continue; 150752681375SJaegeuk Kim if (ino_of_node(page) != ino) 150852681375SJaegeuk Kim continue; 150952681375SJaegeuk Kim 151052681375SJaegeuk Kim lock_page(page); 151152681375SJaegeuk Kim 151252681375SJaegeuk Kim if (unlikely(page->mapping != NODE_MAPPING(sbi))) { 151352681375SJaegeuk Kim continue_unlock: 151452681375SJaegeuk Kim unlock_page(page); 151552681375SJaegeuk Kim continue; 151652681375SJaegeuk Kim } 151752681375SJaegeuk Kim if (ino_of_node(page) != ino) 151852681375SJaegeuk Kim goto continue_unlock; 151952681375SJaegeuk Kim 152052681375SJaegeuk Kim if (!PageDirty(page)) { 152152681375SJaegeuk Kim /* someone wrote it for us */ 152252681375SJaegeuk Kim goto continue_unlock; 152352681375SJaegeuk Kim } 152452681375SJaegeuk Kim 1525608514deSJaegeuk Kim if (last_page) 1526608514deSJaegeuk Kim f2fs_put_page(last_page, 0); 1527608514deSJaegeuk Kim 1528608514deSJaegeuk Kim get_page(page); 1529608514deSJaegeuk Kim last_page = page; 1530608514deSJaegeuk Kim unlock_page(page); 1531608514deSJaegeuk Kim } 1532608514deSJaegeuk Kim pagevec_release(&pvec); 1533608514deSJaegeuk Kim cond_resched(); 1534608514deSJaegeuk Kim } 1535608514deSJaegeuk Kim return last_page; 1536608514deSJaegeuk Kim } 1537608514deSJaegeuk Kim 1538d68f735bSJaegeuk Kim static int __write_node_page(struct page *page, bool atomic, bool *submitted, 1539b0af6d49SChao Yu struct writeback_control *wbc, bool do_balance, 154050fa53ecSChao Yu enum iostat_type io_type, unsigned int *seq_id) 1541faa24895SJaegeuk Kim { 1542faa24895SJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_P_SB(page); 1543faa24895SJaegeuk Kim nid_t nid; 1544faa24895SJaegeuk Kim struct node_info ni; 1545faa24895SJaegeuk Kim struct f2fs_io_info fio = { 1546faa24895SJaegeuk Kim .sbi = sbi, 154739d787beSChao Yu .ino = ino_of_node(page), 1548faa24895SJaegeuk Kim .type = NODE, 1549faa24895SJaegeuk Kim .op = REQ_OP_WRITE, 1550faa24895SJaegeuk Kim .op_flags = wbc_to_write_flags(wbc), 1551faa24895SJaegeuk Kim .page = page, 1552faa24895SJaegeuk Kim .encrypted_page = NULL, 1553d68f735bSJaegeuk Kim .submitted = false, 1554b0af6d49SChao Yu .io_type = io_type, 1555578c6478SYufen Yu .io_wbc = wbc, 1556faa24895SJaegeuk Kim }; 155750fa53ecSChao Yu unsigned int seq; 1558faa24895SJaegeuk Kim 1559faa24895SJaegeuk Kim trace_f2fs_writepage(page, NODE); 1560faa24895SJaegeuk Kim 15616d7c865cSJaegeuk Kim if (unlikely(f2fs_cp_error(sbi))) { 15626d7c865cSJaegeuk Kim ClearPageUptodate(page); 15636d7c865cSJaegeuk Kim dec_page_count(sbi, F2FS_DIRTY_NODES); 15646d7c865cSJaegeuk Kim unlock_page(page); 15656d7c865cSJaegeuk Kim return 0; 15666d7c865cSJaegeuk Kim } 1567db198ae0SChao Yu 1568faa24895SJaegeuk Kim if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) 1569faa24895SJaegeuk Kim goto redirty_out; 1570faa24895SJaegeuk Kim 1571100c0655SJaegeuk Kim if (!is_sbi_flag_set(sbi, SBI_CP_DISABLED) && 1572100c0655SJaegeuk Kim wbc->sync_mode == WB_SYNC_NONE && 1573fd8c8cafSChao Yu IS_DNODE(page) && is_cold_node(page)) 1574fd8c8cafSChao Yu goto redirty_out; 1575fd8c8cafSChao Yu 1576faa24895SJaegeuk Kim /* get old block addr of this node page */ 1577faa24895SJaegeuk Kim nid = nid_of_node(page); 1578faa24895SJaegeuk Kim f2fs_bug_on(sbi, page->index != nid); 1579faa24895SJaegeuk Kim 15807735730dSChao Yu if (f2fs_get_node_info(sbi, nid, &ni)) 15817735730dSChao Yu goto redirty_out; 15827735730dSChao Yu 1583faa24895SJaegeuk Kim if (wbc->for_reclaim) { 1584faa24895SJaegeuk Kim if (!down_read_trylock(&sbi->node_write)) 1585faa24895SJaegeuk Kim goto redirty_out; 1586faa24895SJaegeuk Kim } else { 1587faa24895SJaegeuk Kim down_read(&sbi->node_write); 1588faa24895SJaegeuk Kim } 1589faa24895SJaegeuk Kim 1590faa24895SJaegeuk Kim /* This page is already truncated */ 1591faa24895SJaegeuk Kim if (unlikely(ni.blk_addr == NULL_ADDR)) { 1592faa24895SJaegeuk Kim ClearPageUptodate(page); 1593faa24895SJaegeuk Kim dec_page_count(sbi, F2FS_DIRTY_NODES); 1594faa24895SJaegeuk Kim up_read(&sbi->node_write); 1595faa24895SJaegeuk Kim unlock_page(page); 1596faa24895SJaegeuk Kim return 0; 1597faa24895SJaegeuk Kim } 1598faa24895SJaegeuk Kim 1599c9b60788SChao Yu if (__is_valid_data_blkaddr(ni.blk_addr) && 160093770ab7SChao Yu !f2fs_is_valid_blkaddr(sbi, ni.blk_addr, 160193770ab7SChao Yu DATA_GENERIC_ENHANCE)) { 160289d13c38SJaegeuk Kim up_read(&sbi->node_write); 1603c9b60788SChao Yu goto redirty_out; 160489d13c38SJaegeuk Kim } 1605c9b60788SChao Yu 1606e7c75ab0SJaegeuk Kim if (atomic && !test_opt(sbi, NOBARRIER)) 1607e7c75ab0SJaegeuk Kim fio.op_flags |= REQ_PREFLUSH | REQ_FUA; 1608e7c75ab0SJaegeuk Kim 1609dc5a9412SChao Yu /* should add to global list before clearing PAGECACHE status */ 161050fa53ecSChao Yu if (f2fs_in_warm_node_list(sbi, page)) { 161150fa53ecSChao Yu seq = f2fs_add_fsync_node_entry(sbi, page); 161250fa53ecSChao Yu if (seq_id) 161350fa53ecSChao Yu *seq_id = seq; 161450fa53ecSChao Yu } 161550fa53ecSChao Yu 1616dc5a9412SChao Yu set_page_writeback(page); 1617dc5a9412SChao Yu ClearPageError(page); 1618dc5a9412SChao Yu 1619faa24895SJaegeuk Kim fio.old_blkaddr = ni.blk_addr; 16204d57b86dSChao Yu f2fs_do_write_node_page(nid, &fio); 1621faa24895SJaegeuk Kim set_node_addr(sbi, &ni, fio.new_blkaddr, is_fsync_dnode(page)); 1622faa24895SJaegeuk Kim dec_page_count(sbi, F2FS_DIRTY_NODES); 1623faa24895SJaegeuk Kim up_read(&sbi->node_write); 1624faa24895SJaegeuk Kim 1625d68f735bSJaegeuk Kim if (wbc->for_reclaim) { 1626bab475c5SChao Yu f2fs_submit_merged_write_cond(sbi, NULL, page, 0, NODE); 1627d68f735bSJaegeuk Kim submitted = NULL; 1628d68f735bSJaegeuk Kim } 1629faa24895SJaegeuk Kim 1630faa24895SJaegeuk Kim unlock_page(page); 1631faa24895SJaegeuk Kim 1632d68f735bSJaegeuk Kim if (unlikely(f2fs_cp_error(sbi))) { 1633b9109b0eSJaegeuk Kim f2fs_submit_merged_write(sbi, NODE); 1634d68f735bSJaegeuk Kim submitted = NULL; 1635d68f735bSJaegeuk Kim } 1636d68f735bSJaegeuk Kim if (submitted) 1637d68f735bSJaegeuk Kim *submitted = fio.submitted; 1638faa24895SJaegeuk Kim 1639401db79fSYunlong Song if (do_balance) 1640401db79fSYunlong Song f2fs_balance_fs(sbi, false); 1641faa24895SJaegeuk Kim return 0; 1642faa24895SJaegeuk Kim 1643faa24895SJaegeuk Kim redirty_out: 1644faa24895SJaegeuk Kim redirty_page_for_writepage(wbc, page); 1645faa24895SJaegeuk Kim return AOP_WRITEPAGE_ACTIVATE; 1646faa24895SJaegeuk Kim } 1647faa24895SJaegeuk Kim 164848018b4cSChao Yu int f2fs_move_node_page(struct page *node_page, int gc_type) 1649f15194fcSYunlei He { 165048018b4cSChao Yu int err = 0; 165148018b4cSChao Yu 1652f15194fcSYunlei He if (gc_type == FG_GC) { 1653f15194fcSYunlei He struct writeback_control wbc = { 1654f15194fcSYunlei He .sync_mode = WB_SYNC_ALL, 1655f15194fcSYunlei He .nr_to_write = 1, 1656f15194fcSYunlei He .for_reclaim = 0, 1657f15194fcSYunlei He }; 1658f15194fcSYunlei He 1659bae0ee7aSChao Yu f2fs_wait_on_page_writeback(node_page, NODE, true, true); 16608d64d365SChao Yu 16618d64d365SChao Yu set_page_dirty(node_page); 16628d64d365SChao Yu 166348018b4cSChao Yu if (!clear_page_dirty_for_io(node_page)) { 166448018b4cSChao Yu err = -EAGAIN; 1665f15194fcSYunlei He goto out_page; 166648018b4cSChao Yu } 1667f15194fcSYunlei He 1668f15194fcSYunlei He if (__write_node_page(node_page, false, NULL, 166948018b4cSChao Yu &wbc, false, FS_GC_NODE_IO, NULL)) { 167048018b4cSChao Yu err = -EAGAIN; 1671f15194fcSYunlei He unlock_page(node_page); 167248018b4cSChao Yu } 1673f15194fcSYunlei He goto release_page; 1674f15194fcSYunlei He } else { 1675f15194fcSYunlei He /* set page dirty and write it */ 1676f15194fcSYunlei He if (!PageWriteback(node_page)) 1677f15194fcSYunlei He set_page_dirty(node_page); 1678f15194fcSYunlei He } 1679f15194fcSYunlei He out_page: 1680f15194fcSYunlei He unlock_page(node_page); 1681f15194fcSYunlei He release_page: 1682f15194fcSYunlei He f2fs_put_page(node_page, 0); 168348018b4cSChao Yu return err; 1684f15194fcSYunlei He } 1685f15194fcSYunlei He 1686faa24895SJaegeuk Kim static int f2fs_write_node_page(struct page *page, 1687faa24895SJaegeuk Kim struct writeback_control *wbc) 1688faa24895SJaegeuk Kim { 168950fa53ecSChao Yu return __write_node_page(page, false, NULL, wbc, false, 169050fa53ecSChao Yu FS_NODE_IO, NULL); 1691faa24895SJaegeuk Kim } 1692faa24895SJaegeuk Kim 16934d57b86dSChao Yu int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode, 169450fa53ecSChao Yu struct writeback_control *wbc, bool atomic, 169550fa53ecSChao Yu unsigned int *seq_id) 1696608514deSJaegeuk Kim { 1697028a63a6SJan Kara pgoff_t index; 1698608514deSJaegeuk Kim struct pagevec pvec; 1699608514deSJaegeuk Kim int ret = 0; 1700608514deSJaegeuk Kim struct page *last_page = NULL; 1701608514deSJaegeuk Kim bool marked = false; 170226de9b11SJaegeuk Kim nid_t ino = inode->i_ino; 1703028a63a6SJan Kara int nr_pages; 1704bab475c5SChao Yu int nwritten = 0; 1705608514deSJaegeuk Kim 1706608514deSJaegeuk Kim if (atomic) { 1707608514deSJaegeuk Kim last_page = last_fsync_dnode(sbi, ino); 1708608514deSJaegeuk Kim if (IS_ERR_OR_NULL(last_page)) 1709608514deSJaegeuk Kim return PTR_ERR_OR_ZERO(last_page); 1710608514deSJaegeuk Kim } 1711608514deSJaegeuk Kim retry: 171286679820SMel Gorman pagevec_init(&pvec); 1713608514deSJaegeuk Kim index = 0; 1714608514deSJaegeuk Kim 1715028a63a6SJan Kara while ((nr_pages = pagevec_lookup_tag(&pvec, NODE_MAPPING(sbi), &index, 171667fd707fSJan Kara PAGECACHE_TAG_DIRTY))) { 1717028a63a6SJan Kara int i; 1718608514deSJaegeuk Kim 1719608514deSJaegeuk Kim for (i = 0; i < nr_pages; i++) { 1720608514deSJaegeuk Kim struct page *page = pvec.pages[i]; 1721d68f735bSJaegeuk Kim bool submitted = false; 1722608514deSJaegeuk Kim 1723608514deSJaegeuk Kim if (unlikely(f2fs_cp_error(sbi))) { 1724608514deSJaegeuk Kim f2fs_put_page(last_page, 0); 1725608514deSJaegeuk Kim pagevec_release(&pvec); 17269de69279SChao Yu ret = -EIO; 17279de69279SChao Yu goto out; 1728608514deSJaegeuk Kim } 1729608514deSJaegeuk Kim 1730608514deSJaegeuk Kim if (!IS_DNODE(page) || !is_cold_node(page)) 1731608514deSJaegeuk Kim continue; 1732608514deSJaegeuk Kim if (ino_of_node(page) != ino) 1733608514deSJaegeuk Kim continue; 1734608514deSJaegeuk Kim 1735608514deSJaegeuk Kim lock_page(page); 1736608514deSJaegeuk Kim 1737608514deSJaegeuk Kim if (unlikely(page->mapping != NODE_MAPPING(sbi))) { 1738608514deSJaegeuk Kim continue_unlock: 1739608514deSJaegeuk Kim unlock_page(page); 1740608514deSJaegeuk Kim continue; 1741608514deSJaegeuk Kim } 1742608514deSJaegeuk Kim if (ino_of_node(page) != ino) 174352681375SJaegeuk Kim goto continue_unlock; 174452681375SJaegeuk Kim 1745608514deSJaegeuk Kim if (!PageDirty(page) && page != last_page) { 1746608514deSJaegeuk Kim /* someone wrote it for us */ 1747608514deSJaegeuk Kim goto continue_unlock; 1748608514deSJaegeuk Kim } 1749608514deSJaegeuk Kim 1750bae0ee7aSChao Yu f2fs_wait_on_page_writeback(page, NODE, true, true); 1751608514deSJaegeuk Kim 1752d29fd172SJaegeuk Kim set_fsync_mark(page, 0); 1753d29fd172SJaegeuk Kim set_dentry_mark(page, 0); 1754d29fd172SJaegeuk Kim 1755608514deSJaegeuk Kim if (!atomic || page == last_page) { 175652681375SJaegeuk Kim set_fsync_mark(page, 1); 175726de9b11SJaegeuk Kim if (IS_INODE(page)) { 175826de9b11SJaegeuk Kim if (is_inode_flag_set(inode, 175926de9b11SJaegeuk Kim FI_DIRTY_INODE)) 17604d57b86dSChao Yu f2fs_update_inode(inode, page); 176152681375SJaegeuk Kim set_dentry_mark(page, 17624d57b86dSChao Yu f2fs_need_dentry_mark(sbi, ino)); 176326de9b11SJaegeuk Kim } 1764608514deSJaegeuk Kim /* may be written by other thread */ 1765608514deSJaegeuk Kim if (!PageDirty(page)) 1766608514deSJaegeuk Kim set_page_dirty(page); 1767608514deSJaegeuk Kim } 1768608514deSJaegeuk Kim 1769608514deSJaegeuk Kim if (!clear_page_dirty_for_io(page)) 1770608514deSJaegeuk Kim goto continue_unlock; 177152681375SJaegeuk Kim 1772e7c75ab0SJaegeuk Kim ret = __write_node_page(page, atomic && 1773d68f735bSJaegeuk Kim page == last_page, 1774b0af6d49SChao Yu &submitted, wbc, true, 177550fa53ecSChao Yu FS_NODE_IO, seq_id); 1776c267ec15SJaegeuk Kim if (ret) { 177752681375SJaegeuk Kim unlock_page(page); 1778608514deSJaegeuk Kim f2fs_put_page(last_page, 0); 1779608514deSJaegeuk Kim break; 1780d68f735bSJaegeuk Kim } else if (submitted) { 1781bab475c5SChao Yu nwritten++; 1782608514deSJaegeuk Kim } 17833f5f4959SChao Yu 1784608514deSJaegeuk Kim if (page == last_page) { 1785608514deSJaegeuk Kim f2fs_put_page(page, 0); 1786608514deSJaegeuk Kim marked = true; 178752681375SJaegeuk Kim break; 178852681375SJaegeuk Kim } 1789c267ec15SJaegeuk Kim } 179052681375SJaegeuk Kim pagevec_release(&pvec); 179152681375SJaegeuk Kim cond_resched(); 179252681375SJaegeuk Kim 1793608514deSJaegeuk Kim if (ret || marked) 179452681375SJaegeuk Kim break; 179552681375SJaegeuk Kim } 1796608514deSJaegeuk Kim if (!ret && atomic && !marked) { 1797dcbb4c10SJoe Perches f2fs_debug(sbi, "Retry to write fsync mark: ino=%u, idx=%lx", 1798608514deSJaegeuk Kim ino, last_page->index); 1799608514deSJaegeuk Kim lock_page(last_page); 1800bae0ee7aSChao Yu f2fs_wait_on_page_writeback(last_page, NODE, true, true); 1801608514deSJaegeuk Kim set_page_dirty(last_page); 1802608514deSJaegeuk Kim unlock_page(last_page); 1803608514deSJaegeuk Kim goto retry; 1804608514deSJaegeuk Kim } 18059de69279SChao Yu out: 1806bab475c5SChao Yu if (nwritten) 1807bab475c5SChao Yu f2fs_submit_merged_write_cond(sbi, NULL, NULL, ino, NODE); 1808c267ec15SJaegeuk Kim return ret ? -EIO : 0; 180952681375SJaegeuk Kim } 181052681375SJaegeuk Kim 1811052a82d8SChao Yu static int f2fs_match_ino(struct inode *inode, unsigned long ino, void *data) 1812052a82d8SChao Yu { 1813052a82d8SChao Yu struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 1814052a82d8SChao Yu bool clean; 1815052a82d8SChao Yu 1816052a82d8SChao Yu if (inode->i_ino != ino) 1817052a82d8SChao Yu return 0; 1818052a82d8SChao Yu 1819052a82d8SChao Yu if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) 1820052a82d8SChao Yu return 0; 1821052a82d8SChao Yu 1822052a82d8SChao Yu spin_lock(&sbi->inode_lock[DIRTY_META]); 1823052a82d8SChao Yu clean = list_empty(&F2FS_I(inode)->gdirty_list); 1824052a82d8SChao Yu spin_unlock(&sbi->inode_lock[DIRTY_META]); 1825052a82d8SChao Yu 1826052a82d8SChao Yu if (clean) 1827052a82d8SChao Yu return 0; 1828052a82d8SChao Yu 1829052a82d8SChao Yu inode = igrab(inode); 1830052a82d8SChao Yu if (!inode) 1831052a82d8SChao Yu return 0; 1832052a82d8SChao Yu return 1; 1833052a82d8SChao Yu } 1834052a82d8SChao Yu 1835052a82d8SChao Yu static bool flush_dirty_inode(struct page *page) 1836052a82d8SChao Yu { 1837052a82d8SChao Yu struct f2fs_sb_info *sbi = F2FS_P_SB(page); 1838052a82d8SChao Yu struct inode *inode; 1839052a82d8SChao Yu nid_t ino = ino_of_node(page); 1840052a82d8SChao Yu 1841052a82d8SChao Yu inode = find_inode_nowait(sbi->sb, ino, f2fs_match_ino, NULL); 1842052a82d8SChao Yu if (!inode) 1843052a82d8SChao Yu return false; 1844052a82d8SChao Yu 1845052a82d8SChao Yu f2fs_update_inode(inode, page); 1846052a82d8SChao Yu unlock_page(page); 1847052a82d8SChao Yu 1848052a82d8SChao Yu iput(inode); 1849052a82d8SChao Yu return true; 1850052a82d8SChao Yu } 1851052a82d8SChao Yu 185268e79bafSJia Yang void f2fs_flush_inline_data(struct f2fs_sb_info *sbi) 185334c061adSSayali Lokhande { 185434c061adSSayali Lokhande pgoff_t index = 0; 185534c061adSSayali Lokhande struct pagevec pvec; 185634c061adSSayali Lokhande int nr_pages; 185734c061adSSayali Lokhande 185834c061adSSayali Lokhande pagevec_init(&pvec); 185934c061adSSayali Lokhande 186034c061adSSayali Lokhande while ((nr_pages = pagevec_lookup_tag(&pvec, 186134c061adSSayali Lokhande NODE_MAPPING(sbi), &index, PAGECACHE_TAG_DIRTY))) { 186234c061adSSayali Lokhande int i; 186334c061adSSayali Lokhande 186434c061adSSayali Lokhande for (i = 0; i < nr_pages; i++) { 186534c061adSSayali Lokhande struct page *page = pvec.pages[i]; 186634c061adSSayali Lokhande 186734c061adSSayali Lokhande if (!IS_DNODE(page)) 186834c061adSSayali Lokhande continue; 186934c061adSSayali Lokhande 187034c061adSSayali Lokhande lock_page(page); 187134c061adSSayali Lokhande 187234c061adSSayali Lokhande if (unlikely(page->mapping != NODE_MAPPING(sbi))) { 187334c061adSSayali Lokhande continue_unlock: 187434c061adSSayali Lokhande unlock_page(page); 187534c061adSSayali Lokhande continue; 187634c061adSSayali Lokhande } 187734c061adSSayali Lokhande 187834c061adSSayali Lokhande if (!PageDirty(page)) { 187934c061adSSayali Lokhande /* someone wrote it for us */ 188034c061adSSayali Lokhande goto continue_unlock; 188134c061adSSayali Lokhande } 188234c061adSSayali Lokhande 188334c061adSSayali Lokhande /* flush inline_data, if it's async context. */ 1884b763f3beSChao Yu if (page_private_inline(page)) { 1885b763f3beSChao Yu clear_page_private_inline(page); 188634c061adSSayali Lokhande unlock_page(page); 188734c061adSSayali Lokhande flush_inline_data(sbi, ino_of_node(page)); 188834c061adSSayali Lokhande continue; 188934c061adSSayali Lokhande } 189034c061adSSayali Lokhande unlock_page(page); 189134c061adSSayali Lokhande } 189234c061adSSayali Lokhande pagevec_release(&pvec); 189334c061adSSayali Lokhande cond_resched(); 189434c061adSSayali Lokhande } 189534c061adSSayali Lokhande } 189634c061adSSayali Lokhande 18974d57b86dSChao Yu int f2fs_sync_node_pages(struct f2fs_sb_info *sbi, 18984d57b86dSChao Yu struct writeback_control *wbc, 1899b0af6d49SChao Yu bool do_balance, enum iostat_type io_type) 190052681375SJaegeuk Kim { 1901028a63a6SJan Kara pgoff_t index; 190252681375SJaegeuk Kim struct pagevec pvec; 190352681375SJaegeuk Kim int step = 0; 190412bb0a8fSJaegeuk Kim int nwritten = 0; 19053f5f4959SChao Yu int ret = 0; 1906c29fd0c0SChao Yu int nr_pages, done = 0; 1907e05df3b1SJaegeuk Kim 190886679820SMel Gorman pagevec_init(&pvec); 1909e05df3b1SJaegeuk Kim 1910e05df3b1SJaegeuk Kim next_step: 1911e05df3b1SJaegeuk Kim index = 0; 1912e05df3b1SJaegeuk Kim 1913c29fd0c0SChao Yu while (!done && (nr_pages = pagevec_lookup_tag(&pvec, 1914c29fd0c0SChao Yu NODE_MAPPING(sbi), &index, PAGECACHE_TAG_DIRTY))) { 1915028a63a6SJan Kara int i; 1916e05df3b1SJaegeuk Kim 1917e05df3b1SJaegeuk Kim for (i = 0; i < nr_pages; i++) { 1918e05df3b1SJaegeuk Kim struct page *page = pvec.pages[i]; 1919d68f735bSJaegeuk Kim bool submitted = false; 1920052a82d8SChao Yu bool may_dirty = true; 1921e05df3b1SJaegeuk Kim 1922c29fd0c0SChao Yu /* give a priority to WB_SYNC threads */ 1923c29fd0c0SChao Yu if (atomic_read(&sbi->wb_sync_req[NODE]) && 1924c29fd0c0SChao Yu wbc->sync_mode == WB_SYNC_NONE) { 1925c29fd0c0SChao Yu done = 1; 1926c29fd0c0SChao Yu break; 1927c29fd0c0SChao Yu } 1928c29fd0c0SChao Yu 1929e05df3b1SJaegeuk Kim /* 1930e05df3b1SJaegeuk Kim * flushing sequence with step: 1931e05df3b1SJaegeuk Kim * 0. indirect nodes 1932e05df3b1SJaegeuk Kim * 1. dentry dnodes 1933e05df3b1SJaegeuk Kim * 2. file dnodes 1934e05df3b1SJaegeuk Kim */ 1935e05df3b1SJaegeuk Kim if (step == 0 && IS_DNODE(page)) 1936e05df3b1SJaegeuk Kim continue; 1937e05df3b1SJaegeuk Kim if (step == 1 && (!IS_DNODE(page) || 1938e05df3b1SJaegeuk Kim is_cold_node(page))) 1939e05df3b1SJaegeuk Kim continue; 1940e05df3b1SJaegeuk Kim if (step == 2 && (!IS_DNODE(page) || 1941e05df3b1SJaegeuk Kim !is_cold_node(page))) 1942e05df3b1SJaegeuk Kim continue; 19439a4cbc9eSChao Yu lock_node: 19444b270a8cSChao Yu if (wbc->sync_mode == WB_SYNC_ALL) 19454b270a8cSChao Yu lock_page(page); 19464b270a8cSChao Yu else if (!trylock_page(page)) 1947e05df3b1SJaegeuk Kim continue; 1948e05df3b1SJaegeuk Kim 19494ef51a8fSJaegeuk Kim if (unlikely(page->mapping != NODE_MAPPING(sbi))) { 1950e05df3b1SJaegeuk Kim continue_unlock: 1951e05df3b1SJaegeuk Kim unlock_page(page); 1952e05df3b1SJaegeuk Kim continue; 1953e05df3b1SJaegeuk Kim } 1954e05df3b1SJaegeuk Kim 1955e05df3b1SJaegeuk Kim if (!PageDirty(page)) { 1956e05df3b1SJaegeuk Kim /* someone wrote it for us */ 1957e05df3b1SJaegeuk Kim goto continue_unlock; 1958e05df3b1SJaegeuk Kim } 1959e05df3b1SJaegeuk Kim 1960b0f3b87fSJaegeuk Kim /* flush inline_data/inode, if it's async context. */ 1961b0f3b87fSJaegeuk Kim if (!do_balance) 1962b0f3b87fSJaegeuk Kim goto write_node; 1963b0f3b87fSJaegeuk Kim 1964b0f3b87fSJaegeuk Kim /* flush inline_data */ 1965b763f3beSChao Yu if (page_private_inline(page)) { 1966b763f3beSChao Yu clear_page_private_inline(page); 19672049d4fcSJaegeuk Kim unlock_page(page); 19682049d4fcSJaegeuk Kim flush_inline_data(sbi, ino_of_node(page)); 19699a4cbc9eSChao Yu goto lock_node; 19702049d4fcSJaegeuk Kim } 19712049d4fcSJaegeuk Kim 1972052a82d8SChao Yu /* flush dirty inode */ 1973052a82d8SChao Yu if (IS_INODE(page) && may_dirty) { 1974052a82d8SChao Yu may_dirty = false; 1975052a82d8SChao Yu if (flush_dirty_inode(page)) 1976052a82d8SChao Yu goto lock_node; 1977052a82d8SChao Yu } 1978b0f3b87fSJaegeuk Kim write_node: 1979bae0ee7aSChao Yu f2fs_wait_on_page_writeback(page, NODE, true, true); 1980fa3d2bdfSJaegeuk Kim 1981e05df3b1SJaegeuk Kim if (!clear_page_dirty_for_io(page)) 1982e05df3b1SJaegeuk Kim goto continue_unlock; 1983e05df3b1SJaegeuk Kim 1984e05df3b1SJaegeuk Kim set_fsync_mark(page, 0); 1985e05df3b1SJaegeuk Kim set_dentry_mark(page, 0); 198652746519SJaegeuk Kim 1987401db79fSYunlong Song ret = __write_node_page(page, false, &submitted, 198850fa53ecSChao Yu wbc, do_balance, io_type, NULL); 1989d68f735bSJaegeuk Kim if (ret) 199052746519SJaegeuk Kim unlock_page(page); 1991d68f735bSJaegeuk Kim else if (submitted) 19923f5f4959SChao Yu nwritten++; 1993e05df3b1SJaegeuk Kim 1994e05df3b1SJaegeuk Kim if (--wbc->nr_to_write == 0) 1995e05df3b1SJaegeuk Kim break; 1996e05df3b1SJaegeuk Kim } 1997e05df3b1SJaegeuk Kim pagevec_release(&pvec); 1998e05df3b1SJaegeuk Kim cond_resched(); 1999e05df3b1SJaegeuk Kim 2000e05df3b1SJaegeuk Kim if (wbc->nr_to_write == 0) { 2001e05df3b1SJaegeuk Kim step = 2; 2002e05df3b1SJaegeuk Kim break; 2003e05df3b1SJaegeuk Kim } 2004e05df3b1SJaegeuk Kim } 2005e05df3b1SJaegeuk Kim 2006e05df3b1SJaegeuk Kim if (step < 2) { 2007100c0655SJaegeuk Kim if (!is_sbi_flag_set(sbi, SBI_CP_DISABLED) && 2008100c0655SJaegeuk Kim wbc->sync_mode == WB_SYNC_NONE && step == 1) 2009fd8c8cafSChao Yu goto out; 2010e05df3b1SJaegeuk Kim step++; 2011e05df3b1SJaegeuk Kim goto next_step; 2012e05df3b1SJaegeuk Kim } 2013fd8c8cafSChao Yu out: 20143f5f4959SChao Yu if (nwritten) 2015b9109b0eSJaegeuk Kim f2fs_submit_merged_write(sbi, NODE); 2016db198ae0SChao Yu 2017db198ae0SChao Yu if (unlikely(f2fs_cp_error(sbi))) 2018db198ae0SChao Yu return -EIO; 20193f5f4959SChao Yu return ret; 2020e05df3b1SJaegeuk Kim } 2021e05df3b1SJaegeuk Kim 202250fa53ecSChao Yu int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, 202350fa53ecSChao Yu unsigned int seq_id) 2024cfe58f9dSJaegeuk Kim { 202550fa53ecSChao Yu struct fsync_node_entry *fn; 202650fa53ecSChao Yu struct page *page; 202750fa53ecSChao Yu struct list_head *head = &sbi->fsync_node_list; 202850fa53ecSChao Yu unsigned long flags; 202950fa53ecSChao Yu unsigned int cur_seq_id = 0; 2030280db3c8SMiklos Szeredi int ret2, ret = 0; 2031cfe58f9dSJaegeuk Kim 203250fa53ecSChao Yu while (seq_id && cur_seq_id < seq_id) { 203350fa53ecSChao Yu spin_lock_irqsave(&sbi->fsync_node_lock, flags); 203450fa53ecSChao Yu if (list_empty(head)) { 203550fa53ecSChao Yu spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); 203650fa53ecSChao Yu break; 203750fa53ecSChao Yu } 203850fa53ecSChao Yu fn = list_first_entry(head, struct fsync_node_entry, list); 203950fa53ecSChao Yu if (fn->seq_id > seq_id) { 204050fa53ecSChao Yu spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); 204150fa53ecSChao Yu break; 204250fa53ecSChao Yu } 204350fa53ecSChao Yu cur_seq_id = fn->seq_id; 204450fa53ecSChao Yu page = fn->page; 204550fa53ecSChao Yu get_page(page); 204650fa53ecSChao Yu spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); 20474ef51a8fSJaegeuk Kim 2048bae0ee7aSChao Yu f2fs_wait_on_page_writeback(page, NODE, true, false); 2049cfe58f9dSJaegeuk Kim if (TestClearPageError(page)) 2050cfe58f9dSJaegeuk Kim ret = -EIO; 205150fa53ecSChao Yu 205250fa53ecSChao Yu put_page(page); 205350fa53ecSChao Yu 205450fa53ecSChao Yu if (ret) 205550fa53ecSChao Yu break; 2056cfe58f9dSJaegeuk Kim } 2057cfe58f9dSJaegeuk Kim 2058280db3c8SMiklos Szeredi ret2 = filemap_check_errors(NODE_MAPPING(sbi)); 2059cfe58f9dSJaegeuk Kim if (!ret) 2060cfe58f9dSJaegeuk Kim ret = ret2; 206150fa53ecSChao Yu 2062cfe58f9dSJaegeuk Kim return ret; 2063cfe58f9dSJaegeuk Kim } 2064cfe58f9dSJaegeuk Kim 2065e05df3b1SJaegeuk Kim static int f2fs_write_node_pages(struct address_space *mapping, 2066e05df3b1SJaegeuk Kim struct writeback_control *wbc) 2067e05df3b1SJaegeuk Kim { 20684081363fSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_M_SB(mapping); 20699dfa1bafSJaegeuk Kim struct blk_plug plug; 207050c8cdb3SJaegeuk Kim long diff; 2071e05df3b1SJaegeuk Kim 20720771fcc7SChao Yu if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) 20730771fcc7SChao Yu goto skip_write; 20740771fcc7SChao Yu 20754660f9c0SJaegeuk Kim /* balancing f2fs's metadata in background */ 20767bcd0cfaSChao Yu f2fs_balance_fs_bg(sbi, true); 2077e05df3b1SJaegeuk Kim 2078a7fdffbdSJaegeuk Kim /* collect a number of dirty node pages and write together */ 2079812a9597SJaegeuk Kim if (wbc->sync_mode != WB_SYNC_ALL && 2080812a9597SJaegeuk Kim get_pages(sbi, F2FS_DIRTY_NODES) < 2081812a9597SJaegeuk Kim nr_pages_to_skip(sbi, NODE)) 2082d3baf95dSJaegeuk Kim goto skip_write; 2083a7fdffbdSJaegeuk Kim 2084c29fd0c0SChao Yu if (wbc->sync_mode == WB_SYNC_ALL) 2085c29fd0c0SChao Yu atomic_inc(&sbi->wb_sync_req[NODE]); 2086c29fd0c0SChao Yu else if (atomic_read(&sbi->wb_sync_req[NODE])) 2087c29fd0c0SChao Yu goto skip_write; 2088c29fd0c0SChao Yu 2089d31c7c3fSYunlei He trace_f2fs_writepages(mapping->host, wbc, NODE); 2090d31c7c3fSYunlei He 209150c8cdb3SJaegeuk Kim diff = nr_pages_to_write(sbi, NODE, wbc); 20929dfa1bafSJaegeuk Kim blk_start_plug(&plug); 20934d57b86dSChao Yu f2fs_sync_node_pages(sbi, wbc, true, FS_NODE_IO); 20949dfa1bafSJaegeuk Kim blk_finish_plug(&plug); 209550c8cdb3SJaegeuk Kim wbc->nr_to_write = max((long)0, wbc->nr_to_write - diff); 2096c29fd0c0SChao Yu 2097c29fd0c0SChao Yu if (wbc->sync_mode == WB_SYNC_ALL) 2098c29fd0c0SChao Yu atomic_dec(&sbi->wb_sync_req[NODE]); 2099e05df3b1SJaegeuk Kim return 0; 2100d3baf95dSJaegeuk Kim 2101d3baf95dSJaegeuk Kim skip_write: 2102d3baf95dSJaegeuk Kim wbc->pages_skipped += get_pages(sbi, F2FS_DIRTY_NODES); 2103d31c7c3fSYunlei He trace_f2fs_writepages(mapping->host, wbc, NODE); 2104d3baf95dSJaegeuk Kim return 0; 2105e05df3b1SJaegeuk Kim } 2106e05df3b1SJaegeuk Kim 2107e05df3b1SJaegeuk Kim static int f2fs_set_node_page_dirty(struct page *page) 2108e05df3b1SJaegeuk Kim { 210926c6b887SJaegeuk Kim trace_f2fs_set_page_dirty(page, NODE); 211026c6b887SJaegeuk Kim 2111237c0790SJaegeuk Kim if (!PageUptodate(page)) 2112e05df3b1SJaegeuk Kim SetPageUptodate(page); 211354c55c4eSWeichao Guo #ifdef CONFIG_F2FS_CHECK_FS 211454c55c4eSWeichao Guo if (IS_INODE(page)) 211554c55c4eSWeichao Guo f2fs_inode_chksum_set(F2FS_P_SB(page), page); 211654c55c4eSWeichao Guo #endif 2117e05df3b1SJaegeuk Kim if (!PageDirty(page)) { 2118b87078adSJaegeuk Kim __set_page_dirty_nobuffers(page); 21194081363fSJaegeuk Kim inc_page_count(F2FS_P_SB(page), F2FS_DIRTY_NODES); 2120b763f3beSChao Yu set_page_private_reference(page); 2121e05df3b1SJaegeuk Kim return 1; 2122e05df3b1SJaegeuk Kim } 2123e05df3b1SJaegeuk Kim return 0; 2124e05df3b1SJaegeuk Kim } 2125e05df3b1SJaegeuk Kim 21260a8165d7SJaegeuk Kim /* 2127e05df3b1SJaegeuk Kim * Structure of the f2fs node operations 2128e05df3b1SJaegeuk Kim */ 2129e05df3b1SJaegeuk Kim const struct address_space_operations f2fs_node_aops = { 2130e05df3b1SJaegeuk Kim .writepage = f2fs_write_node_page, 2131e05df3b1SJaegeuk Kim .writepages = f2fs_write_node_pages, 2132e05df3b1SJaegeuk Kim .set_page_dirty = f2fs_set_node_page_dirty, 2133487261f3SChao Yu .invalidatepage = f2fs_invalidate_page, 2134487261f3SChao Yu .releasepage = f2fs_release_page, 21355b7a487cSWeichao Guo #ifdef CONFIG_MIGRATION 21365b7a487cSWeichao Guo .migratepage = f2fs_migrate_page, 21375b7a487cSWeichao Guo #endif 2138e05df3b1SJaegeuk Kim }; 2139e05df3b1SJaegeuk Kim 21408a7ed66aSJaegeuk Kim static struct free_nid *__lookup_free_nid_list(struct f2fs_nm_info *nm_i, 21418a7ed66aSJaegeuk Kim nid_t n) 2142e05df3b1SJaegeuk Kim { 21438a7ed66aSJaegeuk Kim return radix_tree_lookup(&nm_i->free_nid_root, n); 21443aa770a9SNamjae Jeon } 2145e05df3b1SJaegeuk Kim 21469a4ffdf5SChao Yu static int __insert_free_nid(struct f2fs_sb_info *sbi, 2147b815bdc7SLiu Song struct free_nid *i) 2148e05df3b1SJaegeuk Kim { 2149b8559dc2SChao Yu struct f2fs_nm_info *nm_i = NM_I(sbi); 2150eb0aa4b8SJaegeuk Kim int err = radix_tree_insert(&nm_i->free_nid_root, i->nid, i); 21515f029c04SYi Zhuang 2152eb0aa4b8SJaegeuk Kim if (err) 2153eb0aa4b8SJaegeuk Kim return err; 2154eb0aa4b8SJaegeuk Kim 2155b815bdc7SLiu Song nm_i->nid_cnt[FREE_NID]++; 21569a4ffdf5SChao Yu list_add_tail(&i->list, &nm_i->free_nid_list); 2157eb0aa4b8SJaegeuk Kim return 0; 2158b8559dc2SChao Yu } 2159b8559dc2SChao Yu 21609a4ffdf5SChao Yu static void __remove_free_nid(struct f2fs_sb_info *sbi, 2161a0761f63SFan Li struct free_nid *i, enum nid_state state) 2162b8559dc2SChao Yu { 2163b8559dc2SChao Yu struct f2fs_nm_info *nm_i = NM_I(sbi); 2164b8559dc2SChao Yu 21659a4ffdf5SChao Yu f2fs_bug_on(sbi, state != i->state); 21669a4ffdf5SChao Yu nm_i->nid_cnt[state]--; 21679a4ffdf5SChao Yu if (state == FREE_NID) 2168e05df3b1SJaegeuk Kim list_del(&i->list); 21698a7ed66aSJaegeuk Kim radix_tree_delete(&nm_i->free_nid_root, i->nid); 2170e05df3b1SJaegeuk Kim } 2171e05df3b1SJaegeuk Kim 2172a0761f63SFan Li static void __move_free_nid(struct f2fs_sb_info *sbi, struct free_nid *i, 2173a0761f63SFan Li enum nid_state org_state, enum nid_state dst_state) 2174a0761f63SFan Li { 2175a0761f63SFan Li struct f2fs_nm_info *nm_i = NM_I(sbi); 2176a0761f63SFan Li 2177a0761f63SFan Li f2fs_bug_on(sbi, org_state != i->state); 2178a0761f63SFan Li i->state = dst_state; 2179a0761f63SFan Li nm_i->nid_cnt[org_state]--; 2180a0761f63SFan Li nm_i->nid_cnt[dst_state]++; 2181a0761f63SFan Li 2182a0761f63SFan Li switch (dst_state) { 2183a0761f63SFan Li case PREALLOC_NID: 2184a0761f63SFan Li list_del(&i->list); 2185a0761f63SFan Li break; 2186a0761f63SFan Li case FREE_NID: 2187a0761f63SFan Li list_add_tail(&i->list, &nm_i->free_nid_list); 2188a0761f63SFan Li break; 2189a0761f63SFan Li default: 2190a0761f63SFan Li BUG_ON(1); 2191a0761f63SFan Li } 2192a0761f63SFan Li } 2193a0761f63SFan Li 21945921aaa1SLiFan static void update_free_nid_bitmap(struct f2fs_sb_info *sbi, nid_t nid, 21955921aaa1SLiFan bool set, bool build) 21965921aaa1SLiFan { 21975921aaa1SLiFan struct f2fs_nm_info *nm_i = NM_I(sbi); 21985921aaa1SLiFan unsigned int nat_ofs = NAT_BLOCK_OFFSET(nid); 21995921aaa1SLiFan unsigned int nid_ofs = nid - START_NID(nid); 22005921aaa1SLiFan 22015921aaa1SLiFan if (!test_bit_le(nat_ofs, nm_i->nat_block_bitmap)) 22025921aaa1SLiFan return; 22035921aaa1SLiFan 22045921aaa1SLiFan if (set) { 22055921aaa1SLiFan if (test_bit_le(nid_ofs, nm_i->free_nid_bitmap[nat_ofs])) 22065921aaa1SLiFan return; 22075921aaa1SLiFan __set_bit_le(nid_ofs, nm_i->free_nid_bitmap[nat_ofs]); 22085921aaa1SLiFan nm_i->free_nid_count[nat_ofs]++; 22095921aaa1SLiFan } else { 22105921aaa1SLiFan if (!test_bit_le(nid_ofs, nm_i->free_nid_bitmap[nat_ofs])) 22115921aaa1SLiFan return; 22125921aaa1SLiFan __clear_bit_le(nid_ofs, nm_i->free_nid_bitmap[nat_ofs]); 22135921aaa1SLiFan if (!build) 22145921aaa1SLiFan nm_i->free_nid_count[nat_ofs]--; 22155921aaa1SLiFan } 22165921aaa1SLiFan } 22175921aaa1SLiFan 22184ac91242SChao Yu /* return if the nid is recognized as free */ 22195921aaa1SLiFan static bool add_free_nid(struct f2fs_sb_info *sbi, 22205921aaa1SLiFan nid_t nid, bool build, bool update) 2221e05df3b1SJaegeuk Kim { 22226fb03f3aSJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 222330a61ddfSChao Yu struct free_nid *i, *e; 222459bbd474SJaegeuk Kim struct nat_entry *ne; 222530a61ddfSChao Yu int err = -EINVAL; 222630a61ddfSChao Yu bool ret = false; 22279198acebSJaegeuk Kim 22289198acebSJaegeuk Kim /* 0 nid should not be used */ 2229cfb271d4SChao Yu if (unlikely(nid == 0)) 22304ac91242SChao Yu return false; 223159bbd474SJaegeuk Kim 2232626bcf2bSChao Yu if (unlikely(f2fs_check_nid_range(sbi, nid))) 2233626bcf2bSChao Yu return false; 2234626bcf2bSChao Yu 22357bd59381SGu Zheng i = f2fs_kmem_cache_alloc(free_nid_slab, GFP_NOFS); 2236e05df3b1SJaegeuk Kim i->nid = nid; 22379a4ffdf5SChao Yu i->state = FREE_NID; 2238e05df3b1SJaegeuk Kim 22395921aaa1SLiFan radix_tree_preload(GFP_NOFS | __GFP_NOFAIL); 2240769ec6e5SJaegeuk Kim 2241b8559dc2SChao Yu spin_lock(&nm_i->nid_list_lock); 224230a61ddfSChao Yu 224330a61ddfSChao Yu if (build) { 224430a61ddfSChao Yu /* 224530a61ddfSChao Yu * Thread A Thread B 224630a61ddfSChao Yu * - f2fs_create 224730a61ddfSChao Yu * - f2fs_new_inode 22484d57b86dSChao Yu * - f2fs_alloc_nid 22499a4ffdf5SChao Yu * - __insert_nid_to_list(PREALLOC_NID) 225030a61ddfSChao Yu * - f2fs_balance_fs_bg 22514d57b86dSChao Yu * - f2fs_build_free_nids 22524d57b86dSChao Yu * - __f2fs_build_free_nids 225330a61ddfSChao Yu * - scan_nat_page 225430a61ddfSChao Yu * - add_free_nid 225530a61ddfSChao Yu * - __lookup_nat_cache 225630a61ddfSChao Yu * - f2fs_add_link 22574d57b86dSChao Yu * - f2fs_init_inode_metadata 22584d57b86dSChao Yu * - f2fs_new_inode_page 22594d57b86dSChao Yu * - f2fs_new_node_page 226030a61ddfSChao Yu * - set_node_addr 22614d57b86dSChao Yu * - f2fs_alloc_nid_done 22629a4ffdf5SChao Yu * - __remove_nid_from_list(PREALLOC_NID) 22639a4ffdf5SChao Yu * - __insert_nid_to_list(FREE_NID) 226430a61ddfSChao Yu */ 226530a61ddfSChao Yu ne = __lookup_nat_cache(nm_i, nid); 226630a61ddfSChao Yu if (ne && (!get_nat_flag(ne, IS_CHECKPOINTED) || 226730a61ddfSChao Yu nat_get_blkaddr(ne) != NULL_ADDR)) 226830a61ddfSChao Yu goto err_out; 226930a61ddfSChao Yu 227030a61ddfSChao Yu e = __lookup_free_nid_list(nm_i, nid); 227130a61ddfSChao Yu if (e) { 22729a4ffdf5SChao Yu if (e->state == FREE_NID) 227330a61ddfSChao Yu ret = true; 227430a61ddfSChao Yu goto err_out; 227530a61ddfSChao Yu } 227630a61ddfSChao Yu } 227730a61ddfSChao Yu ret = true; 2278b815bdc7SLiu Song err = __insert_free_nid(sbi, i); 227930a61ddfSChao Yu err_out: 22805921aaa1SLiFan if (update) { 22815921aaa1SLiFan update_free_nid_bitmap(sbi, nid, ret, build); 22825921aaa1SLiFan if (!build) 22835921aaa1SLiFan nm_i->available_nids++; 22845921aaa1SLiFan } 2285b8559dc2SChao Yu spin_unlock(&nm_i->nid_list_lock); 2286769ec6e5SJaegeuk Kim radix_tree_preload_end(); 22875921aaa1SLiFan 228830a61ddfSChao Yu if (err) 2289e05df3b1SJaegeuk Kim kmem_cache_free(free_nid_slab, i); 229030a61ddfSChao Yu return ret; 2291e05df3b1SJaegeuk Kim } 2292e05df3b1SJaegeuk Kim 2293b8559dc2SChao Yu static void remove_free_nid(struct f2fs_sb_info *sbi, nid_t nid) 2294e05df3b1SJaegeuk Kim { 2295b8559dc2SChao Yu struct f2fs_nm_info *nm_i = NM_I(sbi); 2296e05df3b1SJaegeuk Kim struct free_nid *i; 2297cf0ee0f0SChao Yu bool need_free = false; 2298cf0ee0f0SChao Yu 2299b8559dc2SChao Yu spin_lock(&nm_i->nid_list_lock); 23008a7ed66aSJaegeuk Kim i = __lookup_free_nid_list(nm_i, nid); 23019a4ffdf5SChao Yu if (i && i->state == FREE_NID) { 2302a0761f63SFan Li __remove_free_nid(sbi, i, FREE_NID); 2303cf0ee0f0SChao Yu need_free = true; 2304e05df3b1SJaegeuk Kim } 2305b8559dc2SChao Yu spin_unlock(&nm_i->nid_list_lock); 2306cf0ee0f0SChao Yu 2307cf0ee0f0SChao Yu if (need_free) 2308cf0ee0f0SChao Yu kmem_cache_free(free_nid_slab, i); 2309e05df3b1SJaegeuk Kim } 2310e05df3b1SJaegeuk Kim 2311e2374015SChao Yu static int scan_nat_page(struct f2fs_sb_info *sbi, 2312e05df3b1SJaegeuk Kim struct page *nat_page, nid_t start_nid) 2313e05df3b1SJaegeuk Kim { 23146fb03f3aSJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 2315e05df3b1SJaegeuk Kim struct f2fs_nat_block *nat_blk = page_address(nat_page); 2316e05df3b1SJaegeuk Kim block_t blk_addr; 23174ac91242SChao Yu unsigned int nat_ofs = NAT_BLOCK_OFFSET(start_nid); 2318e05df3b1SJaegeuk Kim int i; 2319e05df3b1SJaegeuk Kim 232023380b85SJaegeuk Kim __set_bit_le(nat_ofs, nm_i->nat_block_bitmap); 23214ac91242SChao Yu 2322e05df3b1SJaegeuk Kim i = start_nid % NAT_ENTRY_PER_BLOCK; 2323e05df3b1SJaegeuk Kim 2324e05df3b1SJaegeuk Kim for (; i < NAT_ENTRY_PER_BLOCK; i++, start_nid++) { 2325cfb271d4SChao Yu if (unlikely(start_nid >= nm_i->max_nid)) 232604431c44SJaegeuk Kim break; 232723d38844SHaicheng Li 2328e05df3b1SJaegeuk Kim blk_addr = le32_to_cpu(nat_blk->entries[i].block_addr); 2329e2374015SChao Yu 2330e2374015SChao Yu if (blk_addr == NEW_ADDR) 2331e2374015SChao Yu return -EINVAL; 2332e2374015SChao Yu 23335921aaa1SLiFan if (blk_addr == NULL_ADDR) { 23345921aaa1SLiFan add_free_nid(sbi, start_nid, true, true); 23355921aaa1SLiFan } else { 2336346fe752SChao Yu spin_lock(&NM_I(sbi)->nid_list_lock); 23375921aaa1SLiFan update_free_nid_bitmap(sbi, start_nid, false, true); 2338346fe752SChao Yu spin_unlock(&NM_I(sbi)->nid_list_lock); 2339e05df3b1SJaegeuk Kim } 2340e05df3b1SJaegeuk Kim } 2341e2374015SChao Yu 2342e2374015SChao Yu return 0; 23435921aaa1SLiFan } 2344e05df3b1SJaegeuk Kim 23452fbaa25fSChao Yu static void scan_curseg_cache(struct f2fs_sb_info *sbi) 23464ac91242SChao Yu { 23474ac91242SChao Yu struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA); 23484ac91242SChao Yu struct f2fs_journal *journal = curseg->journal; 23492fbaa25fSChao Yu int i; 23504ac91242SChao Yu 23514ac91242SChao Yu down_read(&curseg->journal_rwsem); 23524ac91242SChao Yu for (i = 0; i < nats_in_cursum(journal); i++) { 23534ac91242SChao Yu block_t addr; 23544ac91242SChao Yu nid_t nid; 23554ac91242SChao Yu 23564ac91242SChao Yu addr = le32_to_cpu(nat_in_journal(journal, i).block_addr); 23574ac91242SChao Yu nid = le32_to_cpu(nid_in_journal(journal, i)); 23584ac91242SChao Yu if (addr == NULL_ADDR) 23595921aaa1SLiFan add_free_nid(sbi, nid, true, false); 23604ac91242SChao Yu else 23614ac91242SChao Yu remove_free_nid(sbi, nid); 23624ac91242SChao Yu } 23634ac91242SChao Yu up_read(&curseg->journal_rwsem); 23642fbaa25fSChao Yu } 23652fbaa25fSChao Yu 2366e05df3b1SJaegeuk Kim static void scan_free_nid_bits(struct f2fs_sb_info *sbi) 23674ac91242SChao Yu { 23684ac91242SChao Yu struct f2fs_nm_info *nm_i = NM_I(sbi); 23694ac91242SChao Yu unsigned int i, idx; 237097456574SFan Li nid_t nid; 23714ac91242SChao Yu 23724ac91242SChao Yu down_read(&nm_i->nat_tree_lock); 23734ac91242SChao Yu 23744ac91242SChao Yu for (i = 0; i < nm_i->nat_blocks; i++) { 23754ac91242SChao Yu if (!test_bit_le(i, nm_i->nat_block_bitmap)) 23764ac91242SChao Yu continue; 23774ac91242SChao Yu if (!nm_i->free_nid_count[i]) 23784ac91242SChao Yu continue; 23794ac91242SChao Yu for (idx = 0; idx < NAT_ENTRY_PER_BLOCK; idx++) { 238097456574SFan Li idx = find_next_bit_le(nm_i->free_nid_bitmap[i], 238197456574SFan Li NAT_ENTRY_PER_BLOCK, idx); 238297456574SFan Li if (idx >= NAT_ENTRY_PER_BLOCK) 238397456574SFan Li break; 23844ac91242SChao Yu 23854ac91242SChao Yu nid = i * NAT_ENTRY_PER_BLOCK + idx; 23865921aaa1SLiFan add_free_nid(sbi, nid, true, false); 23874ac91242SChao Yu 23889a4ffdf5SChao Yu if (nm_i->nid_cnt[FREE_NID] >= MAX_FREE_NIDS) 23894ac91242SChao Yu goto out; 23904ac91242SChao Yu } 23914ac91242SChao Yu } 23924ac91242SChao Yu out: 23932fbaa25fSChao Yu scan_curseg_cache(sbi); 23944ac91242SChao Yu 23954ac91242SChao Yu up_read(&nm_i->nat_tree_lock); 23964ac91242SChao Yu } 23974ac91242SChao Yu 2398e2374015SChao Yu static int __f2fs_build_free_nids(struct f2fs_sb_info *sbi, 23994d57b86dSChao Yu bool sync, bool mount) 2400e05df3b1SJaegeuk Kim { 2401e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 2402e2374015SChao Yu int i = 0, ret; 240355008d84SJaegeuk Kim nid_t nid = nm_i->next_scan_nid; 2404e05df3b1SJaegeuk Kim 2405e9cdd307SYunlei He if (unlikely(nid >= nm_i->max_nid)) 2406e9cdd307SYunlei He nid = 0; 2407e9cdd307SYunlei He 2408e2cab031SSahitya Tummala if (unlikely(nid % NAT_ENTRY_PER_BLOCK)) 2409e2cab031SSahitya Tummala nid = NAT_BLOCK_OFFSET(nid) * NAT_ENTRY_PER_BLOCK; 2410e2cab031SSahitya Tummala 241155008d84SJaegeuk Kim /* Enough entries */ 24129a4ffdf5SChao Yu if (nm_i->nid_cnt[FREE_NID] >= NAT_ENTRY_PER_BLOCK) 2413e2374015SChao Yu return 0; 2414e05df3b1SJaegeuk Kim 24154d57b86dSChao Yu if (!sync && !f2fs_available_free_memory(sbi, FREE_NIDS)) 2416e2374015SChao Yu return 0; 2417e05df3b1SJaegeuk Kim 24184ac91242SChao Yu if (!mount) { 24194ac91242SChao Yu /* try to find free nids in free_nid_bitmap */ 24204ac91242SChao Yu scan_free_nid_bits(sbi); 24214ac91242SChao Yu 242274986213SFan Li if (nm_i->nid_cnt[FREE_NID] >= NAT_ENTRY_PER_BLOCK) 2423e2374015SChao Yu return 0; 242422ad0b6aSJaegeuk Kim } 242522ad0b6aSJaegeuk Kim 242655008d84SJaegeuk Kim /* readahead nat pages to be scanned */ 24274d57b86dSChao Yu f2fs_ra_meta_pages(sbi, NAT_BLOCK_OFFSET(nid), FREE_NID_PAGES, 242826879fb1SChao Yu META_NAT, true); 2429e05df3b1SJaegeuk Kim 2430b873b798SJaegeuk Kim down_read(&nm_i->nat_tree_lock); 2431a5131193SJaegeuk Kim 2432e05df3b1SJaegeuk Kim while (1) { 243366e83361SYunlei He if (!test_bit_le(NAT_BLOCK_OFFSET(nid), 243466e83361SYunlei He nm_i->nat_block_bitmap)) { 2435e05df3b1SJaegeuk Kim struct page *page = get_current_nat_page(sbi, nid); 2436e05df3b1SJaegeuk Kim 2437edc55aafSJaegeuk Kim if (IS_ERR(page)) { 2438edc55aafSJaegeuk Kim ret = PTR_ERR(page); 2439edc55aafSJaegeuk Kim } else { 2440e2374015SChao Yu ret = scan_nat_page(sbi, page, nid); 2441e05df3b1SJaegeuk Kim f2fs_put_page(page, 1); 2442edc55aafSJaegeuk Kim } 2443e2374015SChao Yu 2444e2374015SChao Yu if (ret) { 2445e2374015SChao Yu up_read(&nm_i->nat_tree_lock); 2446dcbb4c10SJoe Perches f2fs_err(sbi, "NAT is corrupt, run fsck to fix it"); 2447edc55aafSJaegeuk Kim return ret; 2448e2374015SChao Yu } 244966e83361SYunlei He } 2450e05df3b1SJaegeuk Kim 2451e05df3b1SJaegeuk Kim nid += (NAT_ENTRY_PER_BLOCK - (nid % NAT_ENTRY_PER_BLOCK)); 2452cfb271d4SChao Yu if (unlikely(nid >= nm_i->max_nid)) 2453e05df3b1SJaegeuk Kim nid = 0; 245455008d84SJaegeuk Kim 2455a6d494b6SChao Yu if (++i >= FREE_NID_PAGES) 2456e05df3b1SJaegeuk Kim break; 2457e05df3b1SJaegeuk Kim } 2458e05df3b1SJaegeuk Kim 245955008d84SJaegeuk Kim /* go to the next free nat pages to find free nids abundantly */ 246055008d84SJaegeuk Kim nm_i->next_scan_nid = nid; 2461e05df3b1SJaegeuk Kim 2462e05df3b1SJaegeuk Kim /* find free nids from current sum_pages */ 24632fbaa25fSChao Yu scan_curseg_cache(sbi); 2464dfc08a12SChao Yu 2465b873b798SJaegeuk Kim up_read(&nm_i->nat_tree_lock); 24662db2388fSChao Yu 24674d57b86dSChao Yu f2fs_ra_meta_pages(sbi, NAT_BLOCK_OFFSET(nm_i->next_scan_nid), 2468ea1a29a0SChao Yu nm_i->ra_nid_pages, META_NAT, false); 2469e2374015SChao Yu 2470e2374015SChao Yu return 0; 2471e05df3b1SJaegeuk Kim } 2472e05df3b1SJaegeuk Kim 2473e2374015SChao Yu int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount) 24742411cf5bSChao Yu { 2475e2374015SChao Yu int ret; 2476e2374015SChao Yu 24772411cf5bSChao Yu mutex_lock(&NM_I(sbi)->build_lock); 2478e2374015SChao Yu ret = __f2fs_build_free_nids(sbi, sync, mount); 24792411cf5bSChao Yu mutex_unlock(&NM_I(sbi)->build_lock); 2480e2374015SChao Yu 2481e2374015SChao Yu return ret; 24822411cf5bSChao Yu } 24832411cf5bSChao Yu 2484e05df3b1SJaegeuk Kim /* 2485e05df3b1SJaegeuk Kim * If this function returns success, caller can obtain a new nid 2486e05df3b1SJaegeuk Kim * from second parameter of this function. 2487e05df3b1SJaegeuk Kim * The returned nid could be used ino as well as nid when inode is created. 2488e05df3b1SJaegeuk Kim */ 24894d57b86dSChao Yu bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid) 2490e05df3b1SJaegeuk Kim { 2491e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 2492e05df3b1SJaegeuk Kim struct free_nid *i = NULL; 2493e05df3b1SJaegeuk Kim retry: 249455523519SChao Yu if (time_to_inject(sbi, FAULT_ALLOC_NID)) { 2495c45d6002SChao Yu f2fs_show_injection_info(sbi, FAULT_ALLOC_NID); 2496cb78942bSJaegeuk Kim return false; 249755523519SChao Yu } 24987fa750a1SArnd Bergmann 2499b8559dc2SChao Yu spin_lock(&nm_i->nid_list_lock); 2500e05df3b1SJaegeuk Kim 250104d47e67SChao Yu if (unlikely(nm_i->available_nids == 0)) { 250204d47e67SChao Yu spin_unlock(&nm_i->nid_list_lock); 250304d47e67SChao Yu return false; 250404d47e67SChao Yu } 2505e05df3b1SJaegeuk Kim 25064d57b86dSChao Yu /* We should not use stale free nids created by f2fs_build_free_nids */ 25074d57b86dSChao Yu if (nm_i->nid_cnt[FREE_NID] && !on_f2fs_build_free_nids(nm_i)) { 25089a4ffdf5SChao Yu f2fs_bug_on(sbi, list_empty(&nm_i->free_nid_list)); 25099a4ffdf5SChao Yu i = list_first_entry(&nm_i->free_nid_list, 2510b8559dc2SChao Yu struct free_nid, list); 2511e05df3b1SJaegeuk Kim *nid = i->nid; 2512b8559dc2SChao Yu 2513a0761f63SFan Li __move_free_nid(sbi, i, FREE_NID, PREALLOC_NID); 251404d47e67SChao Yu nm_i->available_nids--; 25154ac91242SChao Yu 2516346fe752SChao Yu update_free_nid_bitmap(sbi, *nid, false, false); 25174ac91242SChao Yu 2518b8559dc2SChao Yu spin_unlock(&nm_i->nid_list_lock); 2519e05df3b1SJaegeuk Kim return true; 2520e05df3b1SJaegeuk Kim } 2521b8559dc2SChao Yu spin_unlock(&nm_i->nid_list_lock); 252255008d84SJaegeuk Kim 252355008d84SJaegeuk Kim /* Let's scan nat pages and its caches to get free nids */ 2524f84262b0SJaegeuk Kim if (!f2fs_build_free_nids(sbi, true, false)) 252555008d84SJaegeuk Kim goto retry; 2526f84262b0SJaegeuk Kim return false; 252755008d84SJaegeuk Kim } 2528e05df3b1SJaegeuk Kim 25290a8165d7SJaegeuk Kim /* 25304d57b86dSChao Yu * f2fs_alloc_nid() should be called prior to this function. 2531e05df3b1SJaegeuk Kim */ 25324d57b86dSChao Yu void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid) 2533e05df3b1SJaegeuk Kim { 2534e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 2535e05df3b1SJaegeuk Kim struct free_nid *i; 2536e05df3b1SJaegeuk Kim 2537b8559dc2SChao Yu spin_lock(&nm_i->nid_list_lock); 25388a7ed66aSJaegeuk Kim i = __lookup_free_nid_list(nm_i, nid); 2539b8559dc2SChao Yu f2fs_bug_on(sbi, !i); 2540a0761f63SFan Li __remove_free_nid(sbi, i, PREALLOC_NID); 2541b8559dc2SChao Yu spin_unlock(&nm_i->nid_list_lock); 2542cf0ee0f0SChao Yu 2543cf0ee0f0SChao Yu kmem_cache_free(free_nid_slab, i); 2544e05df3b1SJaegeuk Kim } 2545e05df3b1SJaegeuk Kim 25460a8165d7SJaegeuk Kim /* 25474d57b86dSChao Yu * f2fs_alloc_nid() should be called prior to this function. 2548e05df3b1SJaegeuk Kim */ 25494d57b86dSChao Yu void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid) 2550e05df3b1SJaegeuk Kim { 255149952fa1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 255249952fa1SJaegeuk Kim struct free_nid *i; 2553cf0ee0f0SChao Yu bool need_free = false; 255449952fa1SJaegeuk Kim 255565985d93SJaegeuk Kim if (!nid) 255665985d93SJaegeuk Kim return; 255765985d93SJaegeuk Kim 2558b8559dc2SChao Yu spin_lock(&nm_i->nid_list_lock); 25598a7ed66aSJaegeuk Kim i = __lookup_free_nid_list(nm_i, nid); 2560b8559dc2SChao Yu f2fs_bug_on(sbi, !i); 2561b8559dc2SChao Yu 25624d57b86dSChao Yu if (!f2fs_available_free_memory(sbi, FREE_NIDS)) { 2563a0761f63SFan Li __remove_free_nid(sbi, i, PREALLOC_NID); 2564cf0ee0f0SChao Yu need_free = true; 256595630cbaSHaicheng Li } else { 2566a0761f63SFan Li __move_free_nid(sbi, i, PREALLOC_NID, FREE_NID); 256795630cbaSHaicheng Li } 256804d47e67SChao Yu 256904d47e67SChao Yu nm_i->available_nids++; 257004d47e67SChao Yu 2571346fe752SChao Yu update_free_nid_bitmap(sbi, nid, true, false); 25724ac91242SChao Yu 2573b8559dc2SChao Yu spin_unlock(&nm_i->nid_list_lock); 2574cf0ee0f0SChao Yu 2575cf0ee0f0SChao Yu if (need_free) 2576cf0ee0f0SChao Yu kmem_cache_free(free_nid_slab, i); 2577e05df3b1SJaegeuk Kim } 2578e05df3b1SJaegeuk Kim 25794d57b86dSChao Yu int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink) 258031696580SChao Yu { 258131696580SChao Yu struct f2fs_nm_info *nm_i = NM_I(sbi); 258231696580SChao Yu int nr = nr_shrink; 258331696580SChao Yu 25849a4ffdf5SChao Yu if (nm_i->nid_cnt[FREE_NID] <= MAX_FREE_NIDS) 2585ad4edb83SJaegeuk Kim return 0; 2586ad4edb83SJaegeuk Kim 258731696580SChao Yu if (!mutex_trylock(&nm_i->build_lock)) 258831696580SChao Yu return 0; 258931696580SChao Yu 2590042be373SChao Yu while (nr_shrink && nm_i->nid_cnt[FREE_NID] > MAX_FREE_NIDS) { 2591042be373SChao Yu struct free_nid *i, *next; 2592042be373SChao Yu unsigned int batch = SHRINK_NID_BATCH_SIZE; 2593042be373SChao Yu 2594b8559dc2SChao Yu spin_lock(&nm_i->nid_list_lock); 25959a4ffdf5SChao Yu list_for_each_entry_safe(i, next, &nm_i->free_nid_list, list) { 2596042be373SChao Yu if (!nr_shrink || !batch || 25979a4ffdf5SChao Yu nm_i->nid_cnt[FREE_NID] <= MAX_FREE_NIDS) 259831696580SChao Yu break; 2599a0761f63SFan Li __remove_free_nid(sbi, i, FREE_NID); 260031696580SChao Yu kmem_cache_free(free_nid_slab, i); 260131696580SChao Yu nr_shrink--; 2602042be373SChao Yu batch--; 260331696580SChao Yu } 2604b8559dc2SChao Yu spin_unlock(&nm_i->nid_list_lock); 2605042be373SChao Yu } 2606042be373SChao Yu 260731696580SChao Yu mutex_unlock(&nm_i->build_lock); 260831696580SChao Yu 260931696580SChao Yu return nr - nr_shrink; 261031696580SChao Yu } 261131696580SChao Yu 26129627a7b3SChao Yu int f2fs_recover_inline_xattr(struct inode *inode, struct page *page) 261328cdce04SChao Yu { 261428cdce04SChao Yu void *src_addr, *dst_addr; 261528cdce04SChao Yu size_t inline_size; 261628cdce04SChao Yu struct page *ipage; 261728cdce04SChao Yu struct f2fs_inode *ri; 261828cdce04SChao Yu 26194d57b86dSChao Yu ipage = f2fs_get_node_page(F2FS_I_SB(inode), inode->i_ino); 26209627a7b3SChao Yu if (IS_ERR(ipage)) 26219627a7b3SChao Yu return PTR_ERR(ipage); 262228cdce04SChao Yu 2623e3b4d43fSJaegeuk Kim ri = F2FS_INODE(page); 26241eca05aaSYunlei He if (ri->i_inline & F2FS_INLINE_XATTR) { 262596dd0251SChao Yu if (!f2fs_has_inline_xattr(inode)) { 26261eca05aaSYunlei He set_inode_flag(inode, FI_INLINE_XATTR); 262796dd0251SChao Yu stat_inc_inline_xattr(inode); 262896dd0251SChao Yu } 26291eca05aaSYunlei He } else { 263096dd0251SChao Yu if (f2fs_has_inline_xattr(inode)) { 263196dd0251SChao Yu stat_dec_inline_xattr(inode); 263291942321SJaegeuk Kim clear_inode_flag(inode, FI_INLINE_XATTR); 263396dd0251SChao Yu } 2634e3b4d43fSJaegeuk Kim goto update_inode; 2635e3b4d43fSJaegeuk Kim } 2636e3b4d43fSJaegeuk Kim 26376afc662eSChao Yu dst_addr = inline_xattr_addr(inode, ipage); 26386afc662eSChao Yu src_addr = inline_xattr_addr(inode, page); 263928cdce04SChao Yu inline_size = inline_xattr_size(inode); 264028cdce04SChao Yu 2641bae0ee7aSChao Yu f2fs_wait_on_page_writeback(ipage, NODE, true, true); 264228cdce04SChao Yu memcpy(dst_addr, src_addr, inline_size); 2643e3b4d43fSJaegeuk Kim update_inode: 26444d57b86dSChao Yu f2fs_update_inode(inode, ipage); 264528cdce04SChao Yu f2fs_put_page(ipage, 1); 26469627a7b3SChao Yu return 0; 264728cdce04SChao Yu } 264828cdce04SChao Yu 26494d57b86dSChao Yu int f2fs_recover_xattr_data(struct inode *inode, struct page *page) 2650abb2366cSJaegeuk Kim { 26514081363fSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 2652abb2366cSJaegeuk Kim nid_t prev_xnid = F2FS_I(inode)->i_xattr_nid; 265387905682SYunlei He nid_t new_xnid; 265487905682SYunlei He struct dnode_of_data dn; 2655abb2366cSJaegeuk Kim struct node_info ni; 2656d260081cSChao Yu struct page *xpage; 26577735730dSChao Yu int err; 2658abb2366cSJaegeuk Kim 2659abb2366cSJaegeuk Kim if (!prev_xnid) 2660abb2366cSJaegeuk Kim goto recover_xnid; 2661abb2366cSJaegeuk Kim 2662d260081cSChao Yu /* 1: invalidate the previous xattr nid */ 26637735730dSChao Yu err = f2fs_get_node_info(sbi, prev_xnid, &ni); 26647735730dSChao Yu if (err) 26657735730dSChao Yu return err; 26667735730dSChao Yu 26674d57b86dSChao Yu f2fs_invalidate_blocks(sbi, ni.blk_addr); 2668000519f2SChao Yu dec_valid_node_count(sbi, inode, false); 2669479f40c4SJaegeuk Kim set_node_addr(sbi, &ni, NULL_ADDR, false); 2670abb2366cSJaegeuk Kim 2671abb2366cSJaegeuk Kim recover_xnid: 2672d260081cSChao Yu /* 2: update xattr nid in inode */ 26734d57b86dSChao Yu if (!f2fs_alloc_nid(sbi, &new_xnid)) 267487905682SYunlei He return -ENOSPC; 267587905682SYunlei He 267687905682SYunlei He set_new_dnode(&dn, inode, NULL, NULL, new_xnid); 26774d57b86dSChao Yu xpage = f2fs_new_node_page(&dn, XATTR_NODE_OFFSET); 267887905682SYunlei He if (IS_ERR(xpage)) { 26794d57b86dSChao Yu f2fs_alloc_nid_failed(sbi, new_xnid); 268087905682SYunlei He return PTR_ERR(xpage); 268187905682SYunlei He } 268287905682SYunlei He 26834d57b86dSChao Yu f2fs_alloc_nid_done(sbi, new_xnid); 26844d57b86dSChao Yu f2fs_update_inode_page(inode); 2685abb2366cSJaegeuk Kim 2686d260081cSChao Yu /* 3: update and set xattr node page dirty */ 268787905682SYunlei He memcpy(F2FS_NODE(xpage), F2FS_NODE(page), VALID_XATTR_BLOCK_SIZE); 2688d260081cSChao Yu 2689d260081cSChao Yu set_page_dirty(xpage); 2690d260081cSChao Yu f2fs_put_page(xpage, 1); 2691abb2366cSJaegeuk Kim 2692d260081cSChao Yu return 0; 2693abb2366cSJaegeuk Kim } 2694abb2366cSJaegeuk Kim 26954d57b86dSChao Yu int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page) 2696e05df3b1SJaegeuk Kim { 269758bfaf44SJaegeuk Kim struct f2fs_inode *src, *dst; 2698e05df3b1SJaegeuk Kim nid_t ino = ino_of_node(page); 2699e05df3b1SJaegeuk Kim struct node_info old_ni, new_ni; 2700e05df3b1SJaegeuk Kim struct page *ipage; 27017735730dSChao Yu int err; 2702e05df3b1SJaegeuk Kim 27037735730dSChao Yu err = f2fs_get_node_info(sbi, ino, &old_ni); 27047735730dSChao Yu if (err) 27057735730dSChao Yu return err; 2706e8271fa3SJaegeuk Kim 2707e8271fa3SJaegeuk Kim if (unlikely(old_ni.blk_addr != NULL_ADDR)) 2708e8271fa3SJaegeuk Kim return -EINVAL; 2709e8ea9b3dSJaegeuk Kim retry: 2710300e129cSJaegeuk Kim ipage = f2fs_grab_cache_page(NODE_MAPPING(sbi), ino, false); 2711e8ea9b3dSJaegeuk Kim if (!ipage) { 27125df7731fSChao Yu congestion_wait(BLK_RW_ASYNC, DEFAULT_IO_TIMEOUT); 2713e8ea9b3dSJaegeuk Kim goto retry; 2714e8ea9b3dSJaegeuk Kim } 2715e05df3b1SJaegeuk Kim 2716e05df3b1SJaegeuk Kim /* Should not use this inode from free nid list */ 2717b8559dc2SChao Yu remove_free_nid(sbi, ino); 2718e05df3b1SJaegeuk Kim 2719237c0790SJaegeuk Kim if (!PageUptodate(ipage)) 2720e05df3b1SJaegeuk Kim SetPageUptodate(ipage); 2721e05df3b1SJaegeuk Kim fill_node_footer(ipage, ino, ino, 0, true); 2722ef2a0071SChao Yu set_cold_node(ipage, false); 2723e05df3b1SJaegeuk Kim 272458bfaf44SJaegeuk Kim src = F2FS_INODE(page); 272558bfaf44SJaegeuk Kim dst = F2FS_INODE(ipage); 2726e05df3b1SJaegeuk Kim 272736218b81SZheng Yongjun memcpy(dst, src, offsetof(struct f2fs_inode, i_ext)); 272858bfaf44SJaegeuk Kim dst->i_size = 0; 272958bfaf44SJaegeuk Kim dst->i_blocks = cpu_to_le64(1); 273058bfaf44SJaegeuk Kim dst->i_links = cpu_to_le32(1); 273158bfaf44SJaegeuk Kim dst->i_xattr_nid = 0; 27327a2af766SChao Yu dst->i_inline = src->i_inline & (F2FS_INLINE_XATTR | F2FS_EXTRA_ATTR); 27335c57132eSChao Yu if (dst->i_inline & F2FS_EXTRA_ATTR) { 27347a2af766SChao Yu dst->i_extra_isize = src->i_extra_isize; 27356afc662eSChao Yu 27367beb01f7SChao Yu if (f2fs_sb_has_flexible_inline_xattr(sbi) && 27376afc662eSChao Yu F2FS_FITS_IN_INODE(src, le16_to_cpu(src->i_extra_isize), 27386afc662eSChao Yu i_inline_xattr_size)) 27396afc662eSChao Yu dst->i_inline_xattr_size = src->i_inline_xattr_size; 27406afc662eSChao Yu 27417beb01f7SChao Yu if (f2fs_sb_has_project_quota(sbi) && 27425c57132eSChao Yu F2FS_FITS_IN_INODE(src, le16_to_cpu(src->i_extra_isize), 27435c57132eSChao Yu i_projid)) 27445c57132eSChao Yu dst->i_projid = src->i_projid; 27455cd1f387SChao Yu 27467beb01f7SChao Yu if (f2fs_sb_has_inode_crtime(sbi) && 27475cd1f387SChao Yu F2FS_FITS_IN_INODE(src, le16_to_cpu(src->i_extra_isize), 27485cd1f387SChao Yu i_crtime_nsec)) { 27495cd1f387SChao Yu dst->i_crtime = src->i_crtime; 27505cd1f387SChao Yu dst->i_crtime_nsec = src->i_crtime_nsec; 27515cd1f387SChao Yu } 27525c57132eSChao Yu } 2753e05df3b1SJaegeuk Kim 2754e05df3b1SJaegeuk Kim new_ni = old_ni; 2755e05df3b1SJaegeuk Kim new_ni.ino = ino; 2756e05df3b1SJaegeuk Kim 27570abd675eSChao Yu if (unlikely(inc_valid_node_count(sbi, NULL, true))) 275865e5cd0aSJaegeuk Kim WARN_ON(1); 2759479f40c4SJaegeuk Kim set_node_addr(sbi, &new_ni, NEW_ADDR, false); 2760e05df3b1SJaegeuk Kim inc_valid_inode_count(sbi); 2761617deb8cSJaegeuk Kim set_page_dirty(ipage); 2762e05df3b1SJaegeuk Kim f2fs_put_page(ipage, 1); 2763e05df3b1SJaegeuk Kim return 0; 2764e05df3b1SJaegeuk Kim } 2765e05df3b1SJaegeuk Kim 27667735730dSChao Yu int f2fs_restore_node_summary(struct f2fs_sb_info *sbi, 2767e05df3b1SJaegeuk Kim unsigned int segno, struct f2fs_summary_block *sum) 2768e05df3b1SJaegeuk Kim { 2769e05df3b1SJaegeuk Kim struct f2fs_node *rn; 2770e05df3b1SJaegeuk Kim struct f2fs_summary *sum_entry; 2771e05df3b1SJaegeuk Kim block_t addr; 27729ecf4b80SChao Yu int i, idx, last_offset, nrpages; 2773e05df3b1SJaegeuk Kim 2774e05df3b1SJaegeuk Kim /* scan the node segment */ 2775e05df3b1SJaegeuk Kim last_offset = sbi->blocks_per_seg; 2776e05df3b1SJaegeuk Kim addr = START_BLOCK(sbi, segno); 2777e05df3b1SJaegeuk Kim sum_entry = &sum->entries[0]; 2778e05df3b1SJaegeuk Kim 27799ecf4b80SChao Yu for (i = 0; i < last_offset; i += nrpages, addr += nrpages) { 27805f7136dbSMatthew Wilcox (Oracle) nrpages = bio_max_segs(last_offset - i); 2781393ff91fSJaegeuk Kim 27829af0ff1cSChao Yu /* readahead node pages */ 27834d57b86dSChao Yu f2fs_ra_meta_pages(sbi, addr, nrpages, META_POR, true); 27849af0ff1cSChao Yu 27859ecf4b80SChao Yu for (idx = addr; idx < addr + nrpages; idx++) { 27864d57b86dSChao Yu struct page *page = f2fs_get_tmp_page(sbi, idx); 2787393ff91fSJaegeuk Kim 27887735730dSChao Yu if (IS_ERR(page)) 27897735730dSChao Yu return PTR_ERR(page); 27907735730dSChao Yu 27919ecf4b80SChao Yu rn = F2FS_NODE(page); 2792393ff91fSJaegeuk Kim sum_entry->nid = rn->footer.nid; 2793393ff91fSJaegeuk Kim sum_entry->version = 0; 2794393ff91fSJaegeuk Kim sum_entry->ofs_in_node = 0; 27959af0ff1cSChao Yu sum_entry++; 27969ecf4b80SChao Yu f2fs_put_page(page, 1); 27979af0ff1cSChao Yu } 2798bac4eef6SChao Yu 27999ecf4b80SChao Yu invalidate_mapping_pages(META_MAPPING(sbi), addr, 2800bac4eef6SChao Yu addr + nrpages); 28019af0ff1cSChao Yu } 28027735730dSChao Yu return 0; 2803e05df3b1SJaegeuk Kim } 2804e05df3b1SJaegeuk Kim 2805aec71382SChao Yu static void remove_nats_in_journal(struct f2fs_sb_info *sbi) 2806e05df3b1SJaegeuk Kim { 2807e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 2808e05df3b1SJaegeuk Kim struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA); 2809b7ad7512SChao Yu struct f2fs_journal *journal = curseg->journal; 2810e05df3b1SJaegeuk Kim int i; 2811e05df3b1SJaegeuk Kim 2812b7ad7512SChao Yu down_write(&curseg->journal_rwsem); 2813dfc08a12SChao Yu for (i = 0; i < nats_in_cursum(journal); i++) { 2814e05df3b1SJaegeuk Kim struct nat_entry *ne; 2815e05df3b1SJaegeuk Kim struct f2fs_nat_entry raw_ne; 2816dfc08a12SChao Yu nid_t nid = le32_to_cpu(nid_in_journal(journal, i)); 2817e05df3b1SJaegeuk Kim 2818b862676eSChao Yu if (f2fs_check_nid_range(sbi, nid)) 2819b862676eSChao Yu continue; 2820b862676eSChao Yu 2821dfc08a12SChao Yu raw_ne = nat_in_journal(journal, i); 28229be32d72SJaegeuk Kim 2823e05df3b1SJaegeuk Kim ne = __lookup_nat_cache(nm_i, nid); 2824e05df3b1SJaegeuk Kim if (!ne) { 282512f9ef37SYunlei He ne = __alloc_nat_entry(nid, true); 282612f9ef37SYunlei He __init_nat_entry(nm_i, ne, &raw_ne, true); 28279be32d72SJaegeuk Kim } 282804d47e67SChao Yu 282904d47e67SChao Yu /* 283004d47e67SChao Yu * if a free nat in journal has not been used after last 283104d47e67SChao Yu * checkpoint, we should remove it from available nids, 283204d47e67SChao Yu * since later we will add it again. 283304d47e67SChao Yu */ 283404d47e67SChao Yu if (!get_nat_flag(ne, IS_DIRTY) && 283504d47e67SChao Yu le32_to_cpu(raw_ne.block_addr) == NULL_ADDR) { 283604d47e67SChao Yu spin_lock(&nm_i->nid_list_lock); 283704d47e67SChao Yu nm_i->available_nids--; 283804d47e67SChao Yu spin_unlock(&nm_i->nid_list_lock); 283904d47e67SChao Yu } 284004d47e67SChao Yu 2841e05df3b1SJaegeuk Kim __set_nat_cache_dirty(nm_i, ne); 2842e05df3b1SJaegeuk Kim } 2843dfc08a12SChao Yu update_nats_in_cursum(journal, -i); 2844b7ad7512SChao Yu up_write(&curseg->journal_rwsem); 2845e05df3b1SJaegeuk Kim } 2846e05df3b1SJaegeuk Kim 2847309cc2b6SJaegeuk Kim static void __adjust_nat_entry_set(struct nat_entry_set *nes, 2848309cc2b6SJaegeuk Kim struct list_head *head, int max) 2849e05df3b1SJaegeuk Kim { 2850309cc2b6SJaegeuk Kim struct nat_entry_set *cur; 2851e05df3b1SJaegeuk Kim 2852309cc2b6SJaegeuk Kim if (nes->entry_cnt >= max) 2853309cc2b6SJaegeuk Kim goto add_out; 2854e05df3b1SJaegeuk Kim 2855309cc2b6SJaegeuk Kim list_for_each_entry(cur, head, set_list) { 2856309cc2b6SJaegeuk Kim if (cur->entry_cnt >= nes->entry_cnt) { 2857309cc2b6SJaegeuk Kim list_add(&nes->set_list, cur->set_list.prev); 2858309cc2b6SJaegeuk Kim return; 2859309cc2b6SJaegeuk Kim } 2860309cc2b6SJaegeuk Kim } 2861309cc2b6SJaegeuk Kim add_out: 2862309cc2b6SJaegeuk Kim list_add_tail(&nes->set_list, head); 2863aec71382SChao Yu } 2864aec71382SChao Yu 28659f7e4a2cSJaegeuk Kim static void __update_nat_bits(struct f2fs_sb_info *sbi, nid_t start_nid, 286622ad0b6aSJaegeuk Kim struct page *page) 286722ad0b6aSJaegeuk Kim { 286822ad0b6aSJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 286922ad0b6aSJaegeuk Kim unsigned int nat_index = start_nid / NAT_ENTRY_PER_BLOCK; 287022ad0b6aSJaegeuk Kim struct f2fs_nat_block *nat_blk = page_address(page); 287122ad0b6aSJaegeuk Kim int valid = 0; 287237a0ab2aSFan Li int i = 0; 287322ad0b6aSJaegeuk Kim 287422ad0b6aSJaegeuk Kim if (!enabled_nat_bits(sbi, NULL)) 287522ad0b6aSJaegeuk Kim return; 287622ad0b6aSJaegeuk Kim 287737a0ab2aSFan Li if (nat_index == 0) { 287837a0ab2aSFan Li valid = 1; 287937a0ab2aSFan Li i = 1; 288037a0ab2aSFan Li } 288137a0ab2aSFan Li for (; i < NAT_ENTRY_PER_BLOCK; i++) { 288236af5f40SChao Yu if (le32_to_cpu(nat_blk->entries[i].block_addr) != NULL_ADDR) 288322ad0b6aSJaegeuk Kim valid++; 288422ad0b6aSJaegeuk Kim } 288522ad0b6aSJaegeuk Kim if (valid == 0) { 288623380b85SJaegeuk Kim __set_bit_le(nat_index, nm_i->empty_nat_bits); 288723380b85SJaegeuk Kim __clear_bit_le(nat_index, nm_i->full_nat_bits); 288822ad0b6aSJaegeuk Kim return; 288922ad0b6aSJaegeuk Kim } 289022ad0b6aSJaegeuk Kim 289123380b85SJaegeuk Kim __clear_bit_le(nat_index, nm_i->empty_nat_bits); 289222ad0b6aSJaegeuk Kim if (valid == NAT_ENTRY_PER_BLOCK) 289323380b85SJaegeuk Kim __set_bit_le(nat_index, nm_i->full_nat_bits); 289422ad0b6aSJaegeuk Kim else 289523380b85SJaegeuk Kim __clear_bit_le(nat_index, nm_i->full_nat_bits); 289622ad0b6aSJaegeuk Kim } 289722ad0b6aSJaegeuk Kim 2898edc55aafSJaegeuk Kim static int __flush_nat_entry_set(struct f2fs_sb_info *sbi, 289922ad0b6aSJaegeuk Kim struct nat_entry_set *set, struct cp_control *cpc) 2900309cc2b6SJaegeuk Kim { 2901309cc2b6SJaegeuk Kim struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA); 2902b7ad7512SChao Yu struct f2fs_journal *journal = curseg->journal; 2903309cc2b6SJaegeuk Kim nid_t start_nid = set->set * NAT_ENTRY_PER_BLOCK; 2904309cc2b6SJaegeuk Kim bool to_journal = true; 2905309cc2b6SJaegeuk Kim struct f2fs_nat_block *nat_blk; 2906309cc2b6SJaegeuk Kim struct nat_entry *ne, *cur; 2907309cc2b6SJaegeuk Kim struct page *page = NULL; 2908aec71382SChao Yu 2909aec71382SChao Yu /* 2910aec71382SChao Yu * there are two steps to flush nat entries: 2911aec71382SChao Yu * #1, flush nat entries to journal in current hot data summary block. 2912aec71382SChao Yu * #2, flush nat entries to nat page. 2913aec71382SChao Yu */ 291422ad0b6aSJaegeuk Kim if (enabled_nat_bits(sbi, cpc) || 291522ad0b6aSJaegeuk Kim !__has_cursum_space(journal, set->entry_cnt, NAT_JOURNAL)) 2916aec71382SChao Yu to_journal = false; 2917aec71382SChao Yu 2918aec71382SChao Yu if (to_journal) { 2919b7ad7512SChao Yu down_write(&curseg->journal_rwsem); 2920aec71382SChao Yu } else { 2921e05df3b1SJaegeuk Kim page = get_next_nat_page(sbi, start_nid); 2922edc55aafSJaegeuk Kim if (IS_ERR(page)) 2923edc55aafSJaegeuk Kim return PTR_ERR(page); 2924edc55aafSJaegeuk Kim 2925e05df3b1SJaegeuk Kim nat_blk = page_address(page); 29269850cf4aSJaegeuk Kim f2fs_bug_on(sbi, !nat_blk); 2927e05df3b1SJaegeuk Kim } 2928e05df3b1SJaegeuk Kim 2929aec71382SChao Yu /* flush dirty nats in nat entry set */ 2930309cc2b6SJaegeuk Kim list_for_each_entry_safe(ne, cur, &set->entry_list, list) { 2931aec71382SChao Yu struct f2fs_nat_entry *raw_ne; 2932aec71382SChao Yu nid_t nid = nat_get_nid(ne); 2933aec71382SChao Yu int offset; 2934aec71382SChao Yu 2935febeca6dSChao Yu f2fs_bug_on(sbi, nat_get_blkaddr(ne) == NEW_ADDR); 2936309cc2b6SJaegeuk Kim 2937aec71382SChao Yu if (to_journal) { 29384d57b86dSChao Yu offset = f2fs_lookup_journal_in_cursum(journal, 2939aec71382SChao Yu NAT_JOURNAL, nid, 1); 29409850cf4aSJaegeuk Kim f2fs_bug_on(sbi, offset < 0); 2941dfc08a12SChao Yu raw_ne = &nat_in_journal(journal, offset); 2942dfc08a12SChao Yu nid_in_journal(journal, offset) = cpu_to_le32(nid); 2943aec71382SChao Yu } else { 2944aec71382SChao Yu raw_ne = &nat_blk->entries[nid - start_nid]; 2945aec71382SChao Yu } 2946aec71382SChao Yu raw_nat_from_node_info(raw_ne, &ne->ni); 294788bd02c9SJaegeuk Kim nat_reset_flag(ne); 29480b28b71eSKinglong Mee __clear_nat_cache_dirty(NM_I(sbi), set, ne); 294904d47e67SChao Yu if (nat_get_blkaddr(ne) == NULL_ADDR) { 29505921aaa1SLiFan add_free_nid(sbi, nid, false, true); 29514ac91242SChao Yu } else { 29524ac91242SChao Yu spin_lock(&NM_I(sbi)->nid_list_lock); 2953346fe752SChao Yu update_free_nid_bitmap(sbi, nid, false, false); 295404d47e67SChao Yu spin_unlock(&NM_I(sbi)->nid_list_lock); 295504d47e67SChao Yu } 2956e05df3b1SJaegeuk Kim } 2957aec71382SChao Yu 295822ad0b6aSJaegeuk Kim if (to_journal) { 2959b7ad7512SChao Yu up_write(&curseg->journal_rwsem); 296022ad0b6aSJaegeuk Kim } else { 296122ad0b6aSJaegeuk Kim __update_nat_bits(sbi, start_nid, page); 2962e05df3b1SJaegeuk Kim f2fs_put_page(page, 1); 296322ad0b6aSJaegeuk Kim } 2964aec71382SChao Yu 296559c9081bSYunlei He /* Allow dirty nats by node block allocation in write_begin */ 296659c9081bSYunlei He if (!set->entry_cnt) { 2967309cc2b6SJaegeuk Kim radix_tree_delete(&NM_I(sbi)->nat_set_root, set->set); 2968309cc2b6SJaegeuk Kim kmem_cache_free(nat_entry_set_slab, set); 2969309cc2b6SJaegeuk Kim } 2970edc55aafSJaegeuk Kim return 0; 297159c9081bSYunlei He } 2972aec71382SChao Yu 2973309cc2b6SJaegeuk Kim /* 2974309cc2b6SJaegeuk Kim * This function is called during the checkpointing process. 2975309cc2b6SJaegeuk Kim */ 2976edc55aafSJaegeuk Kim int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc) 2977309cc2b6SJaegeuk Kim { 2978309cc2b6SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 2979309cc2b6SJaegeuk Kim struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA); 2980b7ad7512SChao Yu struct f2fs_journal *journal = curseg->journal; 29817aed0d45SJaegeuk Kim struct nat_entry_set *setvec[SETVEC_SIZE]; 2982309cc2b6SJaegeuk Kim struct nat_entry_set *set, *tmp; 2983309cc2b6SJaegeuk Kim unsigned int found; 2984309cc2b6SJaegeuk Kim nid_t set_idx = 0; 2985309cc2b6SJaegeuk Kim LIST_HEAD(sets); 2986edc55aafSJaegeuk Kim int err = 0; 2987309cc2b6SJaegeuk Kim 2988a95ba66aSJaegeuk Kim /* 2989a95ba66aSJaegeuk Kim * during unmount, let's flush nat_bits before checking 2990a95ba66aSJaegeuk Kim * nat_cnt[DIRTY_NAT]. 2991a95ba66aSJaegeuk Kim */ 29927f2ecdd8SJaegeuk Kim if (enabled_nat_bits(sbi, cpc)) { 29937f2ecdd8SJaegeuk Kim down_write(&nm_i->nat_tree_lock); 29947f2ecdd8SJaegeuk Kim remove_nats_in_journal(sbi); 29957f2ecdd8SJaegeuk Kim up_write(&nm_i->nat_tree_lock); 29967f2ecdd8SJaegeuk Kim } 29977f2ecdd8SJaegeuk Kim 2998a95ba66aSJaegeuk Kim if (!nm_i->nat_cnt[DIRTY_NAT]) 2999edc55aafSJaegeuk Kim return 0; 3000a5131193SJaegeuk Kim 3001b873b798SJaegeuk Kim down_write(&nm_i->nat_tree_lock); 3002a5131193SJaegeuk Kim 3003309cc2b6SJaegeuk Kim /* 3004309cc2b6SJaegeuk Kim * if there are no enough space in journal to store dirty nat 3005309cc2b6SJaegeuk Kim * entries, remove all entries from journal and merge them 3006309cc2b6SJaegeuk Kim * into nat entry set. 3007309cc2b6SJaegeuk Kim */ 3008900f7362SJaegeuk Kim if (enabled_nat_bits(sbi, cpc) || 3009a95ba66aSJaegeuk Kim !__has_cursum_space(journal, 3010a95ba66aSJaegeuk Kim nm_i->nat_cnt[DIRTY_NAT], NAT_JOURNAL)) 3011309cc2b6SJaegeuk Kim remove_nats_in_journal(sbi); 3012309cc2b6SJaegeuk Kim 3013309cc2b6SJaegeuk Kim while ((found = __gang_lookup_nat_set(nm_i, 30147aed0d45SJaegeuk Kim set_idx, SETVEC_SIZE, setvec))) { 3015309cc2b6SJaegeuk Kim unsigned idx; 30165f029c04SYi Zhuang 3017309cc2b6SJaegeuk Kim set_idx = setvec[found - 1]->set + 1; 3018309cc2b6SJaegeuk Kim for (idx = 0; idx < found; idx++) 3019309cc2b6SJaegeuk Kim __adjust_nat_entry_set(setvec[idx], &sets, 3020dfc08a12SChao Yu MAX_NAT_JENTRIES(journal)); 3021309cc2b6SJaegeuk Kim } 3022309cc2b6SJaegeuk Kim 3023309cc2b6SJaegeuk Kim /* flush dirty nats in nat entry set */ 3024edc55aafSJaegeuk Kim list_for_each_entry_safe(set, tmp, &sets, set_list) { 3025edc55aafSJaegeuk Kim err = __flush_nat_entry_set(sbi, set, cpc); 3026edc55aafSJaegeuk Kim if (err) 3027edc55aafSJaegeuk Kim break; 3028edc55aafSJaegeuk Kim } 3029309cc2b6SJaegeuk Kim 3030b873b798SJaegeuk Kim up_write(&nm_i->nat_tree_lock); 303159c9081bSYunlei He /* Allow dirty nats by node block allocation in write_begin */ 3032edc55aafSJaegeuk Kim 3033edc55aafSJaegeuk Kim return err; 3034e05df3b1SJaegeuk Kim } 3035e05df3b1SJaegeuk Kim 303622ad0b6aSJaegeuk Kim static int __get_nat_bitmaps(struct f2fs_sb_info *sbi) 303722ad0b6aSJaegeuk Kim { 303822ad0b6aSJaegeuk Kim struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); 303922ad0b6aSJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 304022ad0b6aSJaegeuk Kim unsigned int nat_bits_bytes = nm_i->nat_blocks / BITS_PER_BYTE; 304122ad0b6aSJaegeuk Kim unsigned int i; 304222ad0b6aSJaegeuk Kim __u64 cp_ver = cur_cp_version(ckpt); 304322ad0b6aSJaegeuk Kim block_t nat_bits_addr; 304422ad0b6aSJaegeuk Kim 304522ad0b6aSJaegeuk Kim if (!enabled_nat_bits(sbi, NULL)) 304622ad0b6aSJaegeuk Kim return 0; 304722ad0b6aSJaegeuk Kim 3048df033cafSChao Yu nm_i->nat_bits_blocks = F2FS_BLK_ALIGN((nat_bits_bytes << 1) + 8); 30490b6d4ca0SEric Biggers nm_i->nat_bits = f2fs_kvzalloc(sbi, 3050acbf054dSChao Yu nm_i->nat_bits_blocks << F2FS_BLKSIZE_BITS, GFP_KERNEL); 305122ad0b6aSJaegeuk Kim if (!nm_i->nat_bits) 305222ad0b6aSJaegeuk Kim return -ENOMEM; 305322ad0b6aSJaegeuk Kim 305422ad0b6aSJaegeuk Kim nat_bits_addr = __start_cp_addr(sbi) + sbi->blocks_per_seg - 305522ad0b6aSJaegeuk Kim nm_i->nat_bits_blocks; 305622ad0b6aSJaegeuk Kim for (i = 0; i < nm_i->nat_bits_blocks; i++) { 30577735730dSChao Yu struct page *page; 30587735730dSChao Yu 30597735730dSChao Yu page = f2fs_get_meta_page(sbi, nat_bits_addr++); 30603b30eb19SChao Yu if (IS_ERR(page)) 30617735730dSChao Yu return PTR_ERR(page); 306222ad0b6aSJaegeuk Kim 306322ad0b6aSJaegeuk Kim memcpy(nm_i->nat_bits + (i << F2FS_BLKSIZE_BITS), 306422ad0b6aSJaegeuk Kim page_address(page), F2FS_BLKSIZE); 306522ad0b6aSJaegeuk Kim f2fs_put_page(page, 1); 306622ad0b6aSJaegeuk Kim } 306722ad0b6aSJaegeuk Kim 3068ced2c7eaSKinglong Mee cp_ver |= (cur_cp_crc(ckpt) << 32); 306922ad0b6aSJaegeuk Kim if (cpu_to_le64(cp_ver) != *(__le64 *)nm_i->nat_bits) { 307022ad0b6aSJaegeuk Kim disable_nat_bits(sbi, true); 307122ad0b6aSJaegeuk Kim return 0; 307222ad0b6aSJaegeuk Kim } 307322ad0b6aSJaegeuk Kim 307422ad0b6aSJaegeuk Kim nm_i->full_nat_bits = nm_i->nat_bits + 8; 307522ad0b6aSJaegeuk Kim nm_i->empty_nat_bits = nm_i->full_nat_bits + nat_bits_bytes; 307622ad0b6aSJaegeuk Kim 3077dcbb4c10SJoe Perches f2fs_notice(sbi, "Found nat_bits in checkpoint"); 307822ad0b6aSJaegeuk Kim return 0; 307922ad0b6aSJaegeuk Kim } 308022ad0b6aSJaegeuk Kim 3081bd80a4b9SHou Pengyang static inline void load_free_nid_bitmap(struct f2fs_sb_info *sbi) 30827041d5d2SChao Yu { 30837041d5d2SChao Yu struct f2fs_nm_info *nm_i = NM_I(sbi); 30847041d5d2SChao Yu unsigned int i = 0; 30857041d5d2SChao Yu nid_t nid, last_nid; 30867041d5d2SChao Yu 30877041d5d2SChao Yu if (!enabled_nat_bits(sbi, NULL)) 30887041d5d2SChao Yu return; 30897041d5d2SChao Yu 30907041d5d2SChao Yu for (i = 0; i < nm_i->nat_blocks; i++) { 30917041d5d2SChao Yu i = find_next_bit_le(nm_i->empty_nat_bits, nm_i->nat_blocks, i); 30927041d5d2SChao Yu if (i >= nm_i->nat_blocks) 30937041d5d2SChao Yu break; 30947041d5d2SChao Yu 30957041d5d2SChao Yu __set_bit_le(i, nm_i->nat_block_bitmap); 30967041d5d2SChao Yu 30977041d5d2SChao Yu nid = i * NAT_ENTRY_PER_BLOCK; 3098f6986edeSFan Li last_nid = nid + NAT_ENTRY_PER_BLOCK; 30997041d5d2SChao Yu 3100346fe752SChao Yu spin_lock(&NM_I(sbi)->nid_list_lock); 31017041d5d2SChao Yu for (; nid < last_nid; nid++) 3102346fe752SChao Yu update_free_nid_bitmap(sbi, nid, true, true); 3103346fe752SChao Yu spin_unlock(&NM_I(sbi)->nid_list_lock); 31047041d5d2SChao Yu } 31057041d5d2SChao Yu 31067041d5d2SChao Yu for (i = 0; i < nm_i->nat_blocks; i++) { 31077041d5d2SChao Yu i = find_next_bit_le(nm_i->full_nat_bits, nm_i->nat_blocks, i); 31087041d5d2SChao Yu if (i >= nm_i->nat_blocks) 31097041d5d2SChao Yu break; 31107041d5d2SChao Yu 31117041d5d2SChao Yu __set_bit_le(i, nm_i->nat_block_bitmap); 31127041d5d2SChao Yu } 31137041d5d2SChao Yu } 31147041d5d2SChao Yu 3115e05df3b1SJaegeuk Kim static int init_node_manager(struct f2fs_sb_info *sbi) 3116e05df3b1SJaegeuk Kim { 3117e05df3b1SJaegeuk Kim struct f2fs_super_block *sb_raw = F2FS_RAW_SUPER(sbi); 3118e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 3119e05df3b1SJaegeuk Kim unsigned char *version_bitmap; 312022ad0b6aSJaegeuk Kim unsigned int nat_segs; 312122ad0b6aSJaegeuk Kim int err; 3122e05df3b1SJaegeuk Kim 3123e05df3b1SJaegeuk Kim nm_i->nat_blkaddr = le32_to_cpu(sb_raw->nat_blkaddr); 3124e05df3b1SJaegeuk Kim 3125e05df3b1SJaegeuk Kim /* segment_count_nat includes pair segment so divide to 2. */ 3126e05df3b1SJaegeuk Kim nat_segs = le32_to_cpu(sb_raw->segment_count_nat) >> 1; 312722ad0b6aSJaegeuk Kim nm_i->nat_blocks = nat_segs << le32_to_cpu(sb_raw->log_blocks_per_seg); 312822ad0b6aSJaegeuk Kim nm_i->max_nid = NAT_ENTRY_PER_BLOCK * nm_i->nat_blocks; 31297ee0eeabSJaegeuk Kim 3130b63da15eSJaegeuk Kim /* not used nids: 0, node, meta, (and root counted as valid node) */ 313104d47e67SChao Yu nm_i->available_nids = nm_i->max_nid - sbi->total_valid_node_count - 313227cae0bcSChao Yu F2FS_RESERVED_NODE_NUM; 31339a4ffdf5SChao Yu nm_i->nid_cnt[FREE_NID] = 0; 31349a4ffdf5SChao Yu nm_i->nid_cnt[PREALLOC_NID] = 0; 3135cdfc41c1SJaegeuk Kim nm_i->ram_thresh = DEF_RAM_THRESHOLD; 3136ea1a29a0SChao Yu nm_i->ra_nid_pages = DEF_RA_NID_PAGES; 31372304cb0cSChao Yu nm_i->dirty_nats_ratio = DEF_DIRTY_NAT_RATIO_THRESHOLD; 3138e05df3b1SJaegeuk Kim 31398a7ed66aSJaegeuk Kim INIT_RADIX_TREE(&nm_i->free_nid_root, GFP_ATOMIC); 31409a4ffdf5SChao Yu INIT_LIST_HEAD(&nm_i->free_nid_list); 3141769ec6e5SJaegeuk Kim INIT_RADIX_TREE(&nm_i->nat_root, GFP_NOIO); 3142769ec6e5SJaegeuk Kim INIT_RADIX_TREE(&nm_i->nat_set_root, GFP_NOIO); 3143e05df3b1SJaegeuk Kim INIT_LIST_HEAD(&nm_i->nat_entries); 314422969158SChao Yu spin_lock_init(&nm_i->nat_list_lock); 3145e05df3b1SJaegeuk Kim 3146e05df3b1SJaegeuk Kim mutex_init(&nm_i->build_lock); 3147b8559dc2SChao Yu spin_lock_init(&nm_i->nid_list_lock); 3148b873b798SJaegeuk Kim init_rwsem(&nm_i->nat_tree_lock); 3149e05df3b1SJaegeuk Kim 3150e05df3b1SJaegeuk Kim nm_i->next_scan_nid = le32_to_cpu(sbi->ckpt->next_free_nid); 315179b5793bSAlexandru Gheorghiu nm_i->bitmap_size = __bitmap_size(sbi, NAT_BITMAP); 3152e05df3b1SJaegeuk Kim version_bitmap = __bitmap_ptr(sbi, NAT_BITMAP); 315379b5793bSAlexandru Gheorghiu nm_i->nat_bitmap = kmemdup(version_bitmap, nm_i->bitmap_size, 315479b5793bSAlexandru Gheorghiu GFP_KERNEL); 315579b5793bSAlexandru Gheorghiu if (!nm_i->nat_bitmap) 315679b5793bSAlexandru Gheorghiu return -ENOMEM; 3157599a09b2SChao Yu 315822ad0b6aSJaegeuk Kim err = __get_nat_bitmaps(sbi); 315922ad0b6aSJaegeuk Kim if (err) 316022ad0b6aSJaegeuk Kim return err; 316122ad0b6aSJaegeuk Kim 3162599a09b2SChao Yu #ifdef CONFIG_F2FS_CHECK_FS 3163599a09b2SChao Yu nm_i->nat_bitmap_mir = kmemdup(version_bitmap, nm_i->bitmap_size, 3164599a09b2SChao Yu GFP_KERNEL); 3165599a09b2SChao Yu if (!nm_i->nat_bitmap_mir) 3166599a09b2SChao Yu return -ENOMEM; 3167599a09b2SChao Yu #endif 3168599a09b2SChao Yu 3169e05df3b1SJaegeuk Kim return 0; 3170e05df3b1SJaegeuk Kim } 3171e05df3b1SJaegeuk Kim 31729f7e4a2cSJaegeuk Kim static int init_free_nid_cache(struct f2fs_sb_info *sbi) 31734ac91242SChao Yu { 31744ac91242SChao Yu struct f2fs_nm_info *nm_i = NM_I(sbi); 3175bb1105e4SJaegeuk Kim int i; 31764ac91242SChao Yu 3177026f0507SKees Cook nm_i->free_nid_bitmap = 31780b6d4ca0SEric Biggers f2fs_kvzalloc(sbi, array_size(sizeof(unsigned char *), 3179026f0507SKees Cook nm_i->nat_blocks), 3180026f0507SKees Cook GFP_KERNEL); 31814ac91242SChao Yu if (!nm_i->free_nid_bitmap) 31824ac91242SChao Yu return -ENOMEM; 31834ac91242SChao Yu 3184bb1105e4SJaegeuk Kim for (i = 0; i < nm_i->nat_blocks; i++) { 3185bb1105e4SJaegeuk Kim nm_i->free_nid_bitmap[i] = f2fs_kvzalloc(sbi, 3186e15d54d5SYunlei He f2fs_bitmap_size(NAT_ENTRY_PER_BLOCK), GFP_KERNEL); 318768c43a23SYunlei He if (!nm_i->free_nid_bitmap[i]) 3188bb1105e4SJaegeuk Kim return -ENOMEM; 3189bb1105e4SJaegeuk Kim } 3190bb1105e4SJaegeuk Kim 3191628b3d14SChao Yu nm_i->nat_block_bitmap = f2fs_kvzalloc(sbi, nm_i->nat_blocks / 8, 31924ac91242SChao Yu GFP_KERNEL); 31934ac91242SChao Yu if (!nm_i->nat_block_bitmap) 31944ac91242SChao Yu return -ENOMEM; 3195586d1492SChao Yu 31969d2a789cSKees Cook nm_i->free_nid_count = 31979d2a789cSKees Cook f2fs_kvzalloc(sbi, array_size(sizeof(unsigned short), 31989d2a789cSKees Cook nm_i->nat_blocks), 31999d2a789cSKees Cook GFP_KERNEL); 3200586d1492SChao Yu if (!nm_i->free_nid_count) 3201586d1492SChao Yu return -ENOMEM; 32024ac91242SChao Yu return 0; 32034ac91242SChao Yu } 32044ac91242SChao Yu 32054d57b86dSChao Yu int f2fs_build_node_manager(struct f2fs_sb_info *sbi) 3206e05df3b1SJaegeuk Kim { 3207e05df3b1SJaegeuk Kim int err; 3208e05df3b1SJaegeuk Kim 3209acbf054dSChao Yu sbi->nm_info = f2fs_kzalloc(sbi, sizeof(struct f2fs_nm_info), 3210acbf054dSChao Yu GFP_KERNEL); 3211e05df3b1SJaegeuk Kim if (!sbi->nm_info) 3212e05df3b1SJaegeuk Kim return -ENOMEM; 3213e05df3b1SJaegeuk Kim 3214e05df3b1SJaegeuk Kim err = init_node_manager(sbi); 3215e05df3b1SJaegeuk Kim if (err) 3216e05df3b1SJaegeuk Kim return err; 3217e05df3b1SJaegeuk Kim 32184ac91242SChao Yu err = init_free_nid_cache(sbi); 32194ac91242SChao Yu if (err) 32204ac91242SChao Yu return err; 32214ac91242SChao Yu 32227041d5d2SChao Yu /* load free nid status from nat_bits table */ 32237041d5d2SChao Yu load_free_nid_bitmap(sbi); 32247041d5d2SChao Yu 3225e2374015SChao Yu return f2fs_build_free_nids(sbi, true, true); 3226e05df3b1SJaegeuk Kim } 3227e05df3b1SJaegeuk Kim 32284d57b86dSChao Yu void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi) 3229e05df3b1SJaegeuk Kim { 3230e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 3231e05df3b1SJaegeuk Kim struct free_nid *i, *next_i; 3232e05df3b1SJaegeuk Kim struct nat_entry *natvec[NATVEC_SIZE]; 32337aed0d45SJaegeuk Kim struct nat_entry_set *setvec[SETVEC_SIZE]; 3234e05df3b1SJaegeuk Kim nid_t nid = 0; 3235e05df3b1SJaegeuk Kim unsigned int found; 3236e05df3b1SJaegeuk Kim 3237e05df3b1SJaegeuk Kim if (!nm_i) 3238e05df3b1SJaegeuk Kim return; 3239e05df3b1SJaegeuk Kim 3240e05df3b1SJaegeuk Kim /* destroy free nid list */ 3241b8559dc2SChao Yu spin_lock(&nm_i->nid_list_lock); 32429a4ffdf5SChao Yu list_for_each_entry_safe(i, next_i, &nm_i->free_nid_list, list) { 3243a0761f63SFan Li __remove_free_nid(sbi, i, FREE_NID); 3244b8559dc2SChao Yu spin_unlock(&nm_i->nid_list_lock); 3245cf0ee0f0SChao Yu kmem_cache_free(free_nid_slab, i); 3246b8559dc2SChao Yu spin_lock(&nm_i->nid_list_lock); 3247e05df3b1SJaegeuk Kim } 32489a4ffdf5SChao Yu f2fs_bug_on(sbi, nm_i->nid_cnt[FREE_NID]); 32499a4ffdf5SChao Yu f2fs_bug_on(sbi, nm_i->nid_cnt[PREALLOC_NID]); 32509a4ffdf5SChao Yu f2fs_bug_on(sbi, !list_empty(&nm_i->free_nid_list)); 3251b8559dc2SChao Yu spin_unlock(&nm_i->nid_list_lock); 3252e05df3b1SJaegeuk Kim 3253e05df3b1SJaegeuk Kim /* destroy nat cache */ 3254b873b798SJaegeuk Kim down_write(&nm_i->nat_tree_lock); 3255e05df3b1SJaegeuk Kim while ((found = __gang_lookup_nat_cache(nm_i, 3256e05df3b1SJaegeuk Kim nid, NATVEC_SIZE, natvec))) { 3257e05df3b1SJaegeuk Kim unsigned idx; 32587aed0d45SJaegeuk Kim 3259b6ce391eSGu Zheng nid = nat_get_nid(natvec[found - 1]) + 1; 326022969158SChao Yu for (idx = 0; idx < found; idx++) { 326122969158SChao Yu spin_lock(&nm_i->nat_list_lock); 326222969158SChao Yu list_del(&natvec[idx]->list); 326322969158SChao Yu spin_unlock(&nm_i->nat_list_lock); 326422969158SChao Yu 3265b6ce391eSGu Zheng __del_from_nat_cache(nm_i, natvec[idx]); 3266e05df3b1SJaegeuk Kim } 326722969158SChao Yu } 3268a95ba66aSJaegeuk Kim f2fs_bug_on(sbi, nm_i->nat_cnt[TOTAL_NAT]); 32697aed0d45SJaegeuk Kim 32707aed0d45SJaegeuk Kim /* destroy nat set cache */ 32717aed0d45SJaegeuk Kim nid = 0; 32727aed0d45SJaegeuk Kim while ((found = __gang_lookup_nat_set(nm_i, 32737aed0d45SJaegeuk Kim nid, SETVEC_SIZE, setvec))) { 32747aed0d45SJaegeuk Kim unsigned idx; 32757aed0d45SJaegeuk Kim 32767aed0d45SJaegeuk Kim nid = setvec[found - 1]->set + 1; 32777aed0d45SJaegeuk Kim for (idx = 0; idx < found; idx++) { 32787aed0d45SJaegeuk Kim /* entry_cnt is not zero, when cp_error was occurred */ 32797aed0d45SJaegeuk Kim f2fs_bug_on(sbi, !list_empty(&setvec[idx]->entry_list)); 32807aed0d45SJaegeuk Kim radix_tree_delete(&nm_i->nat_set_root, setvec[idx]->set); 32817aed0d45SJaegeuk Kim kmem_cache_free(nat_entry_set_slab, setvec[idx]); 32827aed0d45SJaegeuk Kim } 32837aed0d45SJaegeuk Kim } 3284b873b798SJaegeuk Kim up_write(&nm_i->nat_tree_lock); 3285e05df3b1SJaegeuk Kim 32864ac91242SChao Yu kvfree(nm_i->nat_block_bitmap); 3287bb1105e4SJaegeuk Kim if (nm_i->free_nid_bitmap) { 3288bb1105e4SJaegeuk Kim int i; 3289bb1105e4SJaegeuk Kim 3290bb1105e4SJaegeuk Kim for (i = 0; i < nm_i->nat_blocks; i++) 3291bb1105e4SJaegeuk Kim kvfree(nm_i->free_nid_bitmap[i]); 32925222595dSJaegeuk Kim kvfree(nm_i->free_nid_bitmap); 3293bb1105e4SJaegeuk Kim } 3294586d1492SChao Yu kvfree(nm_i->free_nid_count); 32954ac91242SChao Yu 32965222595dSJaegeuk Kim kvfree(nm_i->nat_bitmap); 32975222595dSJaegeuk Kim kvfree(nm_i->nat_bits); 3298599a09b2SChao Yu #ifdef CONFIG_F2FS_CHECK_FS 32995222595dSJaegeuk Kim kvfree(nm_i->nat_bitmap_mir); 3300599a09b2SChao Yu #endif 3301e05df3b1SJaegeuk Kim sbi->nm_info = NULL; 3302c8eb7024SChao Yu kfree(nm_i); 3303e05df3b1SJaegeuk Kim } 3304e05df3b1SJaegeuk Kim 33054d57b86dSChao Yu int __init f2fs_create_node_manager_caches(void) 3306e05df3b1SJaegeuk Kim { 330798510003SChao Yu nat_entry_slab = f2fs_kmem_cache_create("f2fs_nat_entry", 3308e8512d2eSGu Zheng sizeof(struct nat_entry)); 3309e05df3b1SJaegeuk Kim if (!nat_entry_slab) 3310aec71382SChao Yu goto fail; 3311e05df3b1SJaegeuk Kim 331298510003SChao Yu free_nid_slab = f2fs_kmem_cache_create("f2fs_free_nid", 3313e8512d2eSGu Zheng sizeof(struct free_nid)); 3314aec71382SChao Yu if (!free_nid_slab) 3315ce3e6d25SMarkus Elfring goto destroy_nat_entry; 3316aec71382SChao Yu 331798510003SChao Yu nat_entry_set_slab = f2fs_kmem_cache_create("f2fs_nat_entry_set", 3318aec71382SChao Yu sizeof(struct nat_entry_set)); 3319aec71382SChao Yu if (!nat_entry_set_slab) 3320ce3e6d25SMarkus Elfring goto destroy_free_nid; 332150fa53ecSChao Yu 332298510003SChao Yu fsync_node_entry_slab = f2fs_kmem_cache_create("f2fs_fsync_node_entry", 332350fa53ecSChao Yu sizeof(struct fsync_node_entry)); 332450fa53ecSChao Yu if (!fsync_node_entry_slab) 332550fa53ecSChao Yu goto destroy_nat_entry_set; 3326e05df3b1SJaegeuk Kim return 0; 3327aec71382SChao Yu 332850fa53ecSChao Yu destroy_nat_entry_set: 332950fa53ecSChao Yu kmem_cache_destroy(nat_entry_set_slab); 3330ce3e6d25SMarkus Elfring destroy_free_nid: 3331aec71382SChao Yu kmem_cache_destroy(free_nid_slab); 3332ce3e6d25SMarkus Elfring destroy_nat_entry: 3333aec71382SChao Yu kmem_cache_destroy(nat_entry_slab); 3334aec71382SChao Yu fail: 3335aec71382SChao Yu return -ENOMEM; 3336e05df3b1SJaegeuk Kim } 3337e05df3b1SJaegeuk Kim 33384d57b86dSChao Yu void f2fs_destroy_node_manager_caches(void) 3339e05df3b1SJaegeuk Kim { 334050fa53ecSChao Yu kmem_cache_destroy(fsync_node_entry_slab); 3341aec71382SChao Yu kmem_cache_destroy(nat_entry_set_slab); 3342e05df3b1SJaegeuk Kim kmem_cache_destroy(free_nid_slab); 3343e05df3b1SJaegeuk Kim kmem_cache_destroy(nat_entry_slab); 3344e05df3b1SJaegeuk Kim } 3345