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" 209e4ded3fSJaegeuk Kim #include "trace.h" 2151dd6249SNamjae Jeon #include <trace/events/f2fs.h> 22e05df3b1SJaegeuk Kim 234d57b86dSChao Yu #define on_f2fs_build_free_nids(nmi) mutex_is_locked(&(nm_i)->build_lock) 24f978f5a0SGu Zheng 25e05df3b1SJaegeuk Kim static struct kmem_cache *nat_entry_slab; 26e05df3b1SJaegeuk Kim static struct kmem_cache *free_nid_slab; 27aec71382SChao Yu static struct kmem_cache *nat_entry_set_slab; 2850fa53ecSChao Yu static struct kmem_cache *fsync_node_entry_slab; 29e05df3b1SJaegeuk Kim 30a4f843bdSJaegeuk Kim /* 31a4f843bdSJaegeuk Kim * Check whether the given nid is within node id range. 32a4f843bdSJaegeuk Kim */ 334d57b86dSChao Yu int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid) 34a4f843bdSJaegeuk Kim { 35a4f843bdSJaegeuk Kim if (unlikely(nid < F2FS_ROOT_INO(sbi) || nid >= NM_I(sbi)->max_nid)) { 36a4f843bdSJaegeuk Kim set_sbi_flag(sbi, SBI_NEED_FSCK); 37dcbb4c10SJoe Perches f2fs_warn(sbi, "%s: out-of-range nid=%x, run fsck to fix.", 38a4f843bdSJaegeuk Kim __func__, nid); 3910f966bbSChao Yu return -EFSCORRUPTED; 40a4f843bdSJaegeuk Kim } 41a4f843bdSJaegeuk Kim return 0; 42a4f843bdSJaegeuk Kim } 43a4f843bdSJaegeuk Kim 444d57b86dSChao Yu bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type) 45cdfc41c1SJaegeuk Kim { 466fb03f3aSJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 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 52cdfc41c1SJaegeuk Kim si_meminfo(&val); 53e5e7ea3cSJaegeuk Kim 54e5e7ea3cSJaegeuk Kim /* only uses low memory */ 55e5e7ea3cSJaegeuk Kim avail_ram = val.totalram - val.totalhigh; 56e5e7ea3cSJaegeuk Kim 57429511cdSChao Yu /* 58429511cdSChao Yu * give 25%, 25%, 50%, 50%, 50% memory for each components respectively 59429511cdSChao Yu */ 606fb03f3aSJaegeuk Kim if (type == FREE_NIDS) { 619a4ffdf5SChao Yu mem_size = (nm_i->nid_cnt[FREE_NID] * 62b8559dc2SChao Yu sizeof(struct free_nid)) >> PAGE_SHIFT; 63e5e7ea3cSJaegeuk Kim res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 2); 646fb03f3aSJaegeuk Kim } else if (type == NAT_ENTRIES) { 65a95ba66aSJaegeuk Kim mem_size = (nm_i->nat_cnt[TOTAL_NAT] * 66a95ba66aSJaegeuk Kim sizeof(struct nat_entry)) >> PAGE_SHIFT; 67e5e7ea3cSJaegeuk Kim res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 2); 68e589c2c4SJaegeuk Kim if (excess_cached_nats(sbi)) 69e589c2c4SJaegeuk Kim res = false; 70a1257023SJaegeuk Kim } else if (type == DIRTY_DENTS) { 71a1257023SJaegeuk Kim if (sbi->sb->s_bdi->wb.dirty_exceeded) 72a1257023SJaegeuk Kim return false; 73a1257023SJaegeuk Kim mem_size = get_pages(sbi, F2FS_DIRTY_DENTS); 74a1257023SJaegeuk Kim res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 1); 75e5e7ea3cSJaegeuk Kim } else if (type == INO_ENTRIES) { 76e5e7ea3cSJaegeuk Kim int i; 77e5e7ea3cSJaegeuk Kim 7839d787beSChao Yu for (i = 0; i < MAX_INO_ENTRY; i++) 798f73cbb7SKinglong Mee mem_size += sbi->im[i].ino_num * 808f73cbb7SKinglong Mee sizeof(struct ino_entry); 818f73cbb7SKinglong Mee mem_size >>= PAGE_SHIFT; 82e5e7ea3cSJaegeuk Kim res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 1); 83429511cdSChao Yu } else if (type == EXTENT_CACHE) { 847441ccefSJaegeuk Kim mem_size = (atomic_read(&sbi->total_ext_tree) * 857441ccefSJaegeuk Kim sizeof(struct extent_tree) + 86429511cdSChao Yu atomic_read(&sbi->total_ext_node) * 8709cbfeafSKirill A. Shutemov sizeof(struct extent_node)) >> PAGE_SHIFT; 88429511cdSChao Yu res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 1); 8957864ae5SJaegeuk Kim } else if (type == INMEM_PAGES) { 9057864ae5SJaegeuk Kim /* it allows 20% / total_ram for inmemory pages */ 9157864ae5SJaegeuk Kim mem_size = get_pages(sbi, F2FS_INMEM_PAGES); 9257864ae5SJaegeuk Kim res = mem_size < (val.totalram / 5); 931e84371fSJaegeuk Kim } else { 941663cae4SJaegeuk Kim if (!sbi->sb->s_bdi->wb.dirty_exceeded) 951663cae4SJaegeuk Kim return true; 966fb03f3aSJaegeuk Kim } 976fb03f3aSJaegeuk Kim return res; 98cdfc41c1SJaegeuk Kim } 99cdfc41c1SJaegeuk Kim 100e05df3b1SJaegeuk Kim static void clear_node_page_dirty(struct page *page) 101e05df3b1SJaegeuk Kim { 102e05df3b1SJaegeuk Kim if (PageDirty(page)) { 1035ec2d99dSMatthew Wilcox f2fs_clear_page_cache_dirty_tag(page); 104e05df3b1SJaegeuk Kim clear_page_dirty_for_io(page); 105aec2f729SChao Yu dec_page_count(F2FS_P_SB(page), F2FS_DIRTY_NODES); 106e05df3b1SJaegeuk Kim } 107e05df3b1SJaegeuk Kim ClearPageUptodate(page); 108e05df3b1SJaegeuk Kim } 109e05df3b1SJaegeuk Kim 110e05df3b1SJaegeuk Kim static struct page *get_current_nat_page(struct f2fs_sb_info *sbi, nid_t nid) 111e05df3b1SJaegeuk Kim { 1123acc4522SJaegeuk Kim return f2fs_get_meta_page_retry(sbi, current_nat_addr(sbi, nid)); 113e05df3b1SJaegeuk Kim } 114e05df3b1SJaegeuk Kim 115e05df3b1SJaegeuk Kim static struct page *get_next_nat_page(struct f2fs_sb_info *sbi, nid_t nid) 116e05df3b1SJaegeuk Kim { 117e05df3b1SJaegeuk Kim struct page *src_page; 118e05df3b1SJaegeuk Kim struct page *dst_page; 119e05df3b1SJaegeuk Kim pgoff_t dst_off; 120e05df3b1SJaegeuk Kim void *src_addr; 121e05df3b1SJaegeuk Kim void *dst_addr; 122e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 123e05df3b1SJaegeuk Kim 12480551d17SChao Yu dst_off = next_nat_addr(sbi, current_nat_addr(sbi, nid)); 125e05df3b1SJaegeuk Kim 126e05df3b1SJaegeuk Kim /* get current nat block page with lock */ 12780551d17SChao Yu src_page = get_current_nat_page(sbi, nid); 128edc55aafSJaegeuk Kim if (IS_ERR(src_page)) 129edc55aafSJaegeuk Kim return src_page; 1304d57b86dSChao Yu dst_page = f2fs_grab_meta_page(sbi, dst_off); 1319850cf4aSJaegeuk Kim f2fs_bug_on(sbi, PageDirty(src_page)); 132e05df3b1SJaegeuk Kim 133e05df3b1SJaegeuk Kim src_addr = page_address(src_page); 134e05df3b1SJaegeuk Kim dst_addr = page_address(dst_page); 13509cbfeafSKirill A. Shutemov memcpy(dst_addr, src_addr, PAGE_SIZE); 136e05df3b1SJaegeuk Kim set_page_dirty(dst_page); 137e05df3b1SJaegeuk Kim f2fs_put_page(src_page, 1); 138e05df3b1SJaegeuk Kim 139e05df3b1SJaegeuk Kim set_to_next_nat(nm_i, nid); 140e05df3b1SJaegeuk Kim 141e05df3b1SJaegeuk Kim return dst_page; 142e05df3b1SJaegeuk Kim } 143e05df3b1SJaegeuk Kim 14412f9ef37SYunlei He static struct nat_entry *__alloc_nat_entry(nid_t nid, bool no_fail) 14512f9ef37SYunlei He { 14612f9ef37SYunlei He struct nat_entry *new; 14712f9ef37SYunlei He 14812f9ef37SYunlei He if (no_fail) 1492882d343SChao Yu new = f2fs_kmem_cache_alloc(nat_entry_slab, GFP_F2FS_ZERO); 15012f9ef37SYunlei He else 1512882d343SChao Yu new = kmem_cache_alloc(nat_entry_slab, GFP_F2FS_ZERO); 15212f9ef37SYunlei He if (new) { 15312f9ef37SYunlei He nat_set_nid(new, nid); 15412f9ef37SYunlei He nat_reset_flag(new); 15512f9ef37SYunlei He } 15612f9ef37SYunlei He return new; 15712f9ef37SYunlei He } 15812f9ef37SYunlei He 15912f9ef37SYunlei He static void __free_nat_entry(struct nat_entry *e) 16012f9ef37SYunlei He { 16112f9ef37SYunlei He kmem_cache_free(nat_entry_slab, e); 16212f9ef37SYunlei He } 16312f9ef37SYunlei He 16412f9ef37SYunlei He /* must be locked by nat_tree_lock */ 16512f9ef37SYunlei He static struct nat_entry *__init_nat_entry(struct f2fs_nm_info *nm_i, 16612f9ef37SYunlei He struct nat_entry *ne, struct f2fs_nat_entry *raw_ne, bool no_fail) 16712f9ef37SYunlei He { 16812f9ef37SYunlei He if (no_fail) 16912f9ef37SYunlei He f2fs_radix_tree_insert(&nm_i->nat_root, nat_get_nid(ne), ne); 17012f9ef37SYunlei He else if (radix_tree_insert(&nm_i->nat_root, nat_get_nid(ne), ne)) 17112f9ef37SYunlei He return NULL; 17212f9ef37SYunlei He 17312f9ef37SYunlei He if (raw_ne) 17412f9ef37SYunlei He node_info_from_raw_nat(&ne->ni, raw_ne); 17522969158SChao Yu 17622969158SChao Yu spin_lock(&nm_i->nat_list_lock); 17712f9ef37SYunlei He list_add_tail(&ne->list, &nm_i->nat_entries); 17822969158SChao Yu spin_unlock(&nm_i->nat_list_lock); 17922969158SChao Yu 180a95ba66aSJaegeuk Kim nm_i->nat_cnt[TOTAL_NAT]++; 181a95ba66aSJaegeuk Kim nm_i->nat_cnt[RECLAIMABLE_NAT]++; 18212f9ef37SYunlei He return ne; 18312f9ef37SYunlei He } 18412f9ef37SYunlei He 185e05df3b1SJaegeuk Kim static struct nat_entry *__lookup_nat_cache(struct f2fs_nm_info *nm_i, nid_t n) 186e05df3b1SJaegeuk Kim { 18722969158SChao Yu struct nat_entry *ne; 18822969158SChao Yu 18922969158SChao Yu ne = radix_tree_lookup(&nm_i->nat_root, n); 19022969158SChao Yu 19122969158SChao Yu /* for recent accessed nat entry, move it to tail of lru list */ 19222969158SChao Yu if (ne && !get_nat_flag(ne, IS_DIRTY)) { 19322969158SChao Yu spin_lock(&nm_i->nat_list_lock); 19422969158SChao Yu if (!list_empty(&ne->list)) 19522969158SChao Yu list_move_tail(&ne->list, &nm_i->nat_entries); 19622969158SChao Yu spin_unlock(&nm_i->nat_list_lock); 19722969158SChao Yu } 19822969158SChao Yu 19922969158SChao Yu return ne; 200e05df3b1SJaegeuk Kim } 201e05df3b1SJaegeuk Kim 202e05df3b1SJaegeuk Kim static unsigned int __gang_lookup_nat_cache(struct f2fs_nm_info *nm_i, 203e05df3b1SJaegeuk Kim nid_t start, unsigned int nr, struct nat_entry **ep) 204e05df3b1SJaegeuk Kim { 205e05df3b1SJaegeuk Kim return radix_tree_gang_lookup(&nm_i->nat_root, (void **)ep, start, nr); 206e05df3b1SJaegeuk Kim } 207e05df3b1SJaegeuk Kim 208e05df3b1SJaegeuk Kim static void __del_from_nat_cache(struct f2fs_nm_info *nm_i, struct nat_entry *e) 209e05df3b1SJaegeuk Kim { 210e05df3b1SJaegeuk Kim radix_tree_delete(&nm_i->nat_root, nat_get_nid(e)); 211a95ba66aSJaegeuk Kim nm_i->nat_cnt[TOTAL_NAT]--; 212a95ba66aSJaegeuk Kim nm_i->nat_cnt[RECLAIMABLE_NAT]--; 21312f9ef37SYunlei He __free_nat_entry(e); 214e05df3b1SJaegeuk Kim } 215e05df3b1SJaegeuk Kim 216780de47cSChao Yu static struct nat_entry_set *__grab_nat_entry_set(struct f2fs_nm_info *nm_i, 217309cc2b6SJaegeuk Kim struct nat_entry *ne) 218309cc2b6SJaegeuk Kim { 219309cc2b6SJaegeuk Kim nid_t set = NAT_BLOCK_OFFSET(ne->ni.nid); 220309cc2b6SJaegeuk Kim struct nat_entry_set *head; 221309cc2b6SJaegeuk Kim 222309cc2b6SJaegeuk Kim head = radix_tree_lookup(&nm_i->nat_set_root, set); 223309cc2b6SJaegeuk Kim if (!head) { 22480c54505SJaegeuk Kim head = f2fs_kmem_cache_alloc(nat_entry_set_slab, GFP_NOFS); 225309cc2b6SJaegeuk Kim 226309cc2b6SJaegeuk Kim INIT_LIST_HEAD(&head->entry_list); 227309cc2b6SJaegeuk Kim INIT_LIST_HEAD(&head->set_list); 228309cc2b6SJaegeuk Kim head->set = set; 229309cc2b6SJaegeuk Kim head->entry_cnt = 0; 2309be32d72SJaegeuk Kim f2fs_radix_tree_insert(&nm_i->nat_set_root, set, head); 231309cc2b6SJaegeuk Kim } 232780de47cSChao Yu return head; 233780de47cSChao Yu } 234780de47cSChao Yu 235780de47cSChao Yu static void __set_nat_cache_dirty(struct f2fs_nm_info *nm_i, 236780de47cSChao Yu struct nat_entry *ne) 237780de47cSChao Yu { 238780de47cSChao Yu struct nat_entry_set *head; 239780de47cSChao Yu bool new_ne = nat_get_blkaddr(ne) == NEW_ADDR; 240780de47cSChao Yu 241780de47cSChao Yu if (!new_ne) 242780de47cSChao Yu head = __grab_nat_entry_set(nm_i, ne); 243780de47cSChao Yu 244780de47cSChao Yu /* 245780de47cSChao Yu * update entry_cnt in below condition: 246780de47cSChao Yu * 1. update NEW_ADDR to valid block address; 247780de47cSChao Yu * 2. update old block address to new one; 248780de47cSChao Yu */ 249780de47cSChao Yu if (!new_ne && (get_nat_flag(ne, IS_PREALLOC) || 250780de47cSChao Yu !get_nat_flag(ne, IS_DIRTY))) 251780de47cSChao Yu head->entry_cnt++; 252780de47cSChao Yu 253780de47cSChao Yu set_nat_flag(ne, IS_PREALLOC, new_ne); 254febeca6dSChao Yu 255febeca6dSChao Yu if (get_nat_flag(ne, IS_DIRTY)) 256febeca6dSChao Yu goto refresh_list; 257febeca6dSChao Yu 258a95ba66aSJaegeuk Kim nm_i->nat_cnt[DIRTY_NAT]++; 259a95ba66aSJaegeuk Kim nm_i->nat_cnt[RECLAIMABLE_NAT]--; 260309cc2b6SJaegeuk Kim set_nat_flag(ne, IS_DIRTY, true); 261febeca6dSChao Yu refresh_list: 26222969158SChao Yu spin_lock(&nm_i->nat_list_lock); 263780de47cSChao Yu if (new_ne) 264febeca6dSChao Yu list_del_init(&ne->list); 265febeca6dSChao Yu else 266febeca6dSChao Yu list_move_tail(&ne->list, &head->entry_list); 26722969158SChao Yu spin_unlock(&nm_i->nat_list_lock); 268309cc2b6SJaegeuk Kim } 269309cc2b6SJaegeuk Kim 270309cc2b6SJaegeuk Kim static void __clear_nat_cache_dirty(struct f2fs_nm_info *nm_i, 2710b28b71eSKinglong Mee struct nat_entry_set *set, struct nat_entry *ne) 272309cc2b6SJaegeuk Kim { 27322969158SChao Yu spin_lock(&nm_i->nat_list_lock); 274309cc2b6SJaegeuk Kim list_move_tail(&ne->list, &nm_i->nat_entries); 27522969158SChao Yu spin_unlock(&nm_i->nat_list_lock); 27622969158SChao Yu 277309cc2b6SJaegeuk Kim set_nat_flag(ne, IS_DIRTY, false); 2780b28b71eSKinglong Mee set->entry_cnt--; 279a95ba66aSJaegeuk Kim nm_i->nat_cnt[DIRTY_NAT]--; 280a95ba66aSJaegeuk Kim nm_i->nat_cnt[RECLAIMABLE_NAT]++; 281309cc2b6SJaegeuk Kim } 282309cc2b6SJaegeuk Kim 283309cc2b6SJaegeuk Kim static unsigned int __gang_lookup_nat_set(struct f2fs_nm_info *nm_i, 284309cc2b6SJaegeuk Kim nid_t start, unsigned int nr, struct nat_entry_set **ep) 285309cc2b6SJaegeuk Kim { 286309cc2b6SJaegeuk Kim return radix_tree_gang_lookup(&nm_i->nat_set_root, (void **)ep, 287309cc2b6SJaegeuk Kim start, nr); 288309cc2b6SJaegeuk Kim } 289309cc2b6SJaegeuk Kim 29050fa53ecSChao Yu bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page) 29150fa53ecSChao Yu { 29250fa53ecSChao Yu return NODE_MAPPING(sbi) == page->mapping && 29350fa53ecSChao Yu IS_DNODE(page) && is_cold_node(page); 29450fa53ecSChao Yu } 29550fa53ecSChao Yu 29650fa53ecSChao Yu void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi) 29750fa53ecSChao Yu { 29850fa53ecSChao Yu spin_lock_init(&sbi->fsync_node_lock); 29950fa53ecSChao Yu INIT_LIST_HEAD(&sbi->fsync_node_list); 30050fa53ecSChao Yu sbi->fsync_seg_id = 0; 30150fa53ecSChao Yu sbi->fsync_node_num = 0; 30250fa53ecSChao Yu } 30350fa53ecSChao Yu 30450fa53ecSChao Yu static unsigned int f2fs_add_fsync_node_entry(struct f2fs_sb_info *sbi, 30550fa53ecSChao Yu struct page *page) 30650fa53ecSChao Yu { 30750fa53ecSChao Yu struct fsync_node_entry *fn; 30850fa53ecSChao Yu unsigned long flags; 30950fa53ecSChao Yu unsigned int seq_id; 31050fa53ecSChao Yu 31150fa53ecSChao Yu fn = f2fs_kmem_cache_alloc(fsync_node_entry_slab, GFP_NOFS); 31250fa53ecSChao Yu 31350fa53ecSChao Yu get_page(page); 31450fa53ecSChao Yu fn->page = page; 31550fa53ecSChao Yu INIT_LIST_HEAD(&fn->list); 31650fa53ecSChao Yu 31750fa53ecSChao Yu spin_lock_irqsave(&sbi->fsync_node_lock, flags); 31850fa53ecSChao Yu list_add_tail(&fn->list, &sbi->fsync_node_list); 31950fa53ecSChao Yu fn->seq_id = sbi->fsync_seg_id++; 32050fa53ecSChao Yu seq_id = fn->seq_id; 32150fa53ecSChao Yu sbi->fsync_node_num++; 32250fa53ecSChao Yu spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); 32350fa53ecSChao Yu 32450fa53ecSChao Yu return seq_id; 32550fa53ecSChao Yu } 32650fa53ecSChao Yu 32750fa53ecSChao Yu void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page) 32850fa53ecSChao Yu { 32950fa53ecSChao Yu struct fsync_node_entry *fn; 33050fa53ecSChao Yu unsigned long flags; 33150fa53ecSChao Yu 33250fa53ecSChao Yu spin_lock_irqsave(&sbi->fsync_node_lock, flags); 33350fa53ecSChao Yu list_for_each_entry(fn, &sbi->fsync_node_list, list) { 33450fa53ecSChao Yu if (fn->page == page) { 33550fa53ecSChao Yu list_del(&fn->list); 33650fa53ecSChao Yu sbi->fsync_node_num--; 33750fa53ecSChao Yu spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); 33850fa53ecSChao Yu kmem_cache_free(fsync_node_entry_slab, fn); 33950fa53ecSChao Yu put_page(page); 34050fa53ecSChao Yu return; 34150fa53ecSChao Yu } 34250fa53ecSChao Yu } 34350fa53ecSChao Yu spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); 34450fa53ecSChao Yu f2fs_bug_on(sbi, 1); 34550fa53ecSChao Yu } 34650fa53ecSChao Yu 34750fa53ecSChao Yu void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi) 34850fa53ecSChao Yu { 34950fa53ecSChao Yu unsigned long flags; 35050fa53ecSChao Yu 35150fa53ecSChao Yu spin_lock_irqsave(&sbi->fsync_node_lock, flags); 35250fa53ecSChao Yu sbi->fsync_seg_id = 0; 35350fa53ecSChao Yu spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); 35450fa53ecSChao Yu } 35550fa53ecSChao Yu 3564d57b86dSChao Yu int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid) 3572dcf51abSJaegeuk Kim { 3582dcf51abSJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 3592dcf51abSJaegeuk Kim struct nat_entry *e; 3602dcf51abSJaegeuk Kim bool need = false; 3612dcf51abSJaegeuk Kim 362b873b798SJaegeuk Kim down_read(&nm_i->nat_tree_lock); 3632dcf51abSJaegeuk Kim e = __lookup_nat_cache(nm_i, nid); 3642dcf51abSJaegeuk Kim if (e) { 3652dcf51abSJaegeuk Kim if (!get_nat_flag(e, IS_CHECKPOINTED) && 3662dcf51abSJaegeuk Kim !get_nat_flag(e, HAS_FSYNCED_INODE)) 3672dcf51abSJaegeuk Kim need = true; 3682dcf51abSJaegeuk Kim } 369b873b798SJaegeuk Kim up_read(&nm_i->nat_tree_lock); 3702dcf51abSJaegeuk Kim return need; 3712dcf51abSJaegeuk Kim } 3722dcf51abSJaegeuk Kim 3734d57b86dSChao Yu bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid) 374e05df3b1SJaegeuk Kim { 375e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 376e05df3b1SJaegeuk Kim struct nat_entry *e; 37788bd02c9SJaegeuk Kim bool is_cp = true; 378e05df3b1SJaegeuk Kim 379b873b798SJaegeuk Kim down_read(&nm_i->nat_tree_lock); 380e05df3b1SJaegeuk Kim e = __lookup_nat_cache(nm_i, nid); 3817ef35e3bSJaegeuk Kim if (e && !get_nat_flag(e, IS_CHECKPOINTED)) 38288bd02c9SJaegeuk Kim is_cp = false; 383b873b798SJaegeuk Kim up_read(&nm_i->nat_tree_lock); 384e05df3b1SJaegeuk Kim return is_cp; 385e05df3b1SJaegeuk Kim } 386e05df3b1SJaegeuk Kim 3874d57b86dSChao Yu bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino) 388b6fe5873SJaegeuk Kim { 389b6fe5873SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 390b6fe5873SJaegeuk Kim struct nat_entry *e; 39188bd02c9SJaegeuk Kim bool need_update = true; 392b6fe5873SJaegeuk Kim 393b873b798SJaegeuk Kim down_read(&nm_i->nat_tree_lock); 39488bd02c9SJaegeuk Kim e = __lookup_nat_cache(nm_i, ino); 39588bd02c9SJaegeuk Kim if (e && get_nat_flag(e, HAS_LAST_FSYNC) && 39688bd02c9SJaegeuk Kim (get_nat_flag(e, IS_CHECKPOINTED) || 39788bd02c9SJaegeuk Kim get_nat_flag(e, HAS_FSYNCED_INODE))) 39888bd02c9SJaegeuk Kim need_update = false; 399b873b798SJaegeuk Kim up_read(&nm_i->nat_tree_lock); 40088bd02c9SJaegeuk Kim return need_update; 401b6fe5873SJaegeuk Kim } 402b6fe5873SJaegeuk Kim 40312f9ef37SYunlei He /* must be locked by nat_tree_lock */ 4041515aef0SChao Yu static void cache_nat_entry(struct f2fs_sb_info *sbi, nid_t nid, 405e05df3b1SJaegeuk Kim struct f2fs_nat_entry *ne) 406e05df3b1SJaegeuk Kim { 4071515aef0SChao Yu struct f2fs_nm_info *nm_i = NM_I(sbi); 40812f9ef37SYunlei He struct nat_entry *new, *e; 4099be32d72SJaegeuk Kim 41012f9ef37SYunlei He new = __alloc_nat_entry(nid, false); 41112f9ef37SYunlei He if (!new) 41212f9ef37SYunlei He return; 41312f9ef37SYunlei He 41412f9ef37SYunlei He down_write(&nm_i->nat_tree_lock); 415e05df3b1SJaegeuk Kim e = __lookup_nat_cache(nm_i, nid); 41612f9ef37SYunlei He if (!e) 41712f9ef37SYunlei He e = __init_nat_entry(nm_i, new, ne, false); 41812f9ef37SYunlei He else 4190c0b471eSEric Biggers f2fs_bug_on(sbi, nat_get_ino(e) != le32_to_cpu(ne->ino) || 4200c0b471eSEric Biggers nat_get_blkaddr(e) != 4210c0b471eSEric Biggers le32_to_cpu(ne->block_addr) || 4221515aef0SChao Yu nat_get_version(e) != ne->version); 42312f9ef37SYunlei He up_write(&nm_i->nat_tree_lock); 42412f9ef37SYunlei He if (e != new) 42512f9ef37SYunlei He __free_nat_entry(new); 426e05df3b1SJaegeuk Kim } 427e05df3b1SJaegeuk Kim 428e05df3b1SJaegeuk Kim static void set_node_addr(struct f2fs_sb_info *sbi, struct node_info *ni, 429479f40c4SJaegeuk Kim block_t new_blkaddr, bool fsync_done) 430e05df3b1SJaegeuk Kim { 431e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 432e05df3b1SJaegeuk Kim struct nat_entry *e; 43312f9ef37SYunlei He struct nat_entry *new = __alloc_nat_entry(ni->nid, true); 4349be32d72SJaegeuk Kim 435b873b798SJaegeuk Kim down_write(&nm_i->nat_tree_lock); 436e05df3b1SJaegeuk Kim e = __lookup_nat_cache(nm_i, ni->nid); 437e05df3b1SJaegeuk Kim if (!e) { 43812f9ef37SYunlei He e = __init_nat_entry(nm_i, new, NULL, true); 4395c27f4eeSChao Yu copy_node_info(&e->ni, ni); 4409850cf4aSJaegeuk Kim f2fs_bug_on(sbi, ni->blk_addr == NEW_ADDR); 441e05df3b1SJaegeuk Kim } else if (new_blkaddr == NEW_ADDR) { 442e05df3b1SJaegeuk Kim /* 443e05df3b1SJaegeuk Kim * when nid is reallocated, 444e05df3b1SJaegeuk Kim * previous nat entry can be remained in nat cache. 445e05df3b1SJaegeuk Kim * So, reinitialize it with new information. 446e05df3b1SJaegeuk Kim */ 4475c27f4eeSChao Yu copy_node_info(&e->ni, ni); 4489850cf4aSJaegeuk Kim f2fs_bug_on(sbi, ni->blk_addr != NULL_ADDR); 449e05df3b1SJaegeuk Kim } 45012f9ef37SYunlei He /* let's free early to reduce memory consumption */ 45112f9ef37SYunlei He if (e != new) 45212f9ef37SYunlei He __free_nat_entry(new); 453e05df3b1SJaegeuk Kim 454e05df3b1SJaegeuk Kim /* sanity check */ 4559850cf4aSJaegeuk Kim f2fs_bug_on(sbi, nat_get_blkaddr(e) != ni->blk_addr); 4569850cf4aSJaegeuk Kim f2fs_bug_on(sbi, nat_get_blkaddr(e) == NULL_ADDR && 457e05df3b1SJaegeuk Kim new_blkaddr == NULL_ADDR); 4589850cf4aSJaegeuk Kim f2fs_bug_on(sbi, nat_get_blkaddr(e) == NEW_ADDR && 459e05df3b1SJaegeuk Kim new_blkaddr == NEW_ADDR); 46093770ab7SChao Yu f2fs_bug_on(sbi, __is_valid_data_blkaddr(nat_get_blkaddr(e)) && 461e05df3b1SJaegeuk Kim new_blkaddr == NEW_ADDR); 462e05df3b1SJaegeuk Kim 463e1c42045Sarter97 /* increment version no as node is removed */ 464e05df3b1SJaegeuk Kim if (nat_get_blkaddr(e) != NEW_ADDR && new_blkaddr == NULL_ADDR) { 465e05df3b1SJaegeuk Kim unsigned char version = nat_get_version(e); 466e05df3b1SJaegeuk Kim nat_set_version(e, inc_node_version(version)); 467e05df3b1SJaegeuk Kim } 468e05df3b1SJaegeuk Kim 469e05df3b1SJaegeuk Kim /* change address */ 470e05df3b1SJaegeuk Kim nat_set_blkaddr(e, new_blkaddr); 47193770ab7SChao Yu if (!__is_valid_data_blkaddr(new_blkaddr)) 47288bd02c9SJaegeuk Kim set_nat_flag(e, IS_CHECKPOINTED, false); 473e05df3b1SJaegeuk Kim __set_nat_cache_dirty(nm_i, e); 474479f40c4SJaegeuk Kim 475479f40c4SJaegeuk Kim /* update fsync_mark if its inode nat entry is still alive */ 476d5b692b7SChao Yu if (ni->nid != ni->ino) 477479f40c4SJaegeuk Kim e = __lookup_nat_cache(nm_i, ni->ino); 47888bd02c9SJaegeuk Kim if (e) { 47988bd02c9SJaegeuk Kim if (fsync_done && ni->nid == ni->ino) 48088bd02c9SJaegeuk Kim set_nat_flag(e, HAS_FSYNCED_INODE, true); 48188bd02c9SJaegeuk Kim set_nat_flag(e, HAS_LAST_FSYNC, fsync_done); 48288bd02c9SJaegeuk Kim } 483b873b798SJaegeuk Kim up_write(&nm_i->nat_tree_lock); 484e05df3b1SJaegeuk Kim } 485e05df3b1SJaegeuk Kim 4864d57b86dSChao Yu int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink) 487e05df3b1SJaegeuk Kim { 488e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 4891b38dc8eSJaegeuk Kim int nr = nr_shrink; 490e05df3b1SJaegeuk Kim 491b873b798SJaegeuk Kim if (!down_write_trylock(&nm_i->nat_tree_lock)) 492b873b798SJaegeuk Kim return 0; 493e05df3b1SJaegeuk Kim 49422969158SChao Yu spin_lock(&nm_i->nat_list_lock); 49522969158SChao Yu while (nr_shrink) { 496e05df3b1SJaegeuk Kim struct nat_entry *ne; 49722969158SChao Yu 49822969158SChao Yu if (list_empty(&nm_i->nat_entries)) 49922969158SChao Yu break; 50022969158SChao Yu 501e05df3b1SJaegeuk Kim ne = list_first_entry(&nm_i->nat_entries, 502e05df3b1SJaegeuk Kim struct nat_entry, list); 50322969158SChao Yu list_del(&ne->list); 50422969158SChao Yu spin_unlock(&nm_i->nat_list_lock); 50522969158SChao Yu 506e05df3b1SJaegeuk Kim __del_from_nat_cache(nm_i, ne); 507e05df3b1SJaegeuk Kim nr_shrink--; 50822969158SChao Yu 50922969158SChao Yu spin_lock(&nm_i->nat_list_lock); 510e05df3b1SJaegeuk Kim } 51122969158SChao Yu spin_unlock(&nm_i->nat_list_lock); 51222969158SChao Yu 513b873b798SJaegeuk Kim up_write(&nm_i->nat_tree_lock); 5141b38dc8eSJaegeuk Kim return nr - nr_shrink; 515e05df3b1SJaegeuk Kim } 516e05df3b1SJaegeuk Kim 5177735730dSChao Yu int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid, 5184d57b86dSChao Yu struct node_info *ni) 519e05df3b1SJaegeuk Kim { 520e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 521e05df3b1SJaegeuk Kim struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA); 522b7ad7512SChao Yu struct f2fs_journal *journal = curseg->journal; 523e05df3b1SJaegeuk Kim nid_t start_nid = START_NID(nid); 524e05df3b1SJaegeuk Kim struct f2fs_nat_block *nat_blk; 525e05df3b1SJaegeuk Kim struct page *page = NULL; 526e05df3b1SJaegeuk Kim struct f2fs_nat_entry ne; 527e05df3b1SJaegeuk Kim struct nat_entry *e; 52866a82d1fSYunlei He pgoff_t index; 52993770ab7SChao Yu block_t blkaddr; 530e05df3b1SJaegeuk Kim int i; 531e05df3b1SJaegeuk Kim 532e05df3b1SJaegeuk Kim ni->nid = nid; 533e05df3b1SJaegeuk Kim 534e05df3b1SJaegeuk Kim /* Check nat cache */ 535b873b798SJaegeuk Kim down_read(&nm_i->nat_tree_lock); 536e05df3b1SJaegeuk Kim e = __lookup_nat_cache(nm_i, nid); 537e05df3b1SJaegeuk Kim if (e) { 538e05df3b1SJaegeuk Kim ni->ino = nat_get_ino(e); 539e05df3b1SJaegeuk Kim ni->blk_addr = nat_get_blkaddr(e); 540e05df3b1SJaegeuk Kim ni->version = nat_get_version(e); 541b873b798SJaegeuk Kim up_read(&nm_i->nat_tree_lock); 5427735730dSChao Yu return 0; 5431515aef0SChao Yu } 544e05df3b1SJaegeuk Kim 5453547ea96SJaegeuk Kim memset(&ne, 0, sizeof(struct f2fs_nat_entry)); 5463547ea96SJaegeuk Kim 547e05df3b1SJaegeuk Kim /* Check current segment summary */ 548b7ad7512SChao Yu down_read(&curseg->journal_rwsem); 5494d57b86dSChao Yu i = f2fs_lookup_journal_in_cursum(journal, NAT_JOURNAL, nid, 0); 550e05df3b1SJaegeuk Kim if (i >= 0) { 551dfc08a12SChao Yu ne = nat_in_journal(journal, i); 552e05df3b1SJaegeuk Kim node_info_from_raw_nat(ni, &ne); 553e05df3b1SJaegeuk Kim } 554b7ad7512SChao Yu up_read(&curseg->journal_rwsem); 55566a82d1fSYunlei He if (i >= 0) { 55666a82d1fSYunlei He up_read(&nm_i->nat_tree_lock); 557e05df3b1SJaegeuk Kim goto cache; 55866a82d1fSYunlei He } 559e05df3b1SJaegeuk Kim 560e05df3b1SJaegeuk Kim /* Fill node_info from nat page */ 56166a82d1fSYunlei He index = current_nat_addr(sbi, nid); 56266a82d1fSYunlei He up_read(&nm_i->nat_tree_lock); 56366a82d1fSYunlei He 5644d57b86dSChao Yu page = f2fs_get_meta_page(sbi, index); 5657735730dSChao Yu if (IS_ERR(page)) 5667735730dSChao Yu return PTR_ERR(page); 5677735730dSChao Yu 568e05df3b1SJaegeuk Kim nat_blk = (struct f2fs_nat_block *)page_address(page); 569e05df3b1SJaegeuk Kim ne = nat_blk->entries[nid - start_nid]; 570e05df3b1SJaegeuk Kim node_info_from_raw_nat(ni, &ne); 571e05df3b1SJaegeuk Kim f2fs_put_page(page, 1); 572e05df3b1SJaegeuk Kim cache: 57393770ab7SChao Yu blkaddr = le32_to_cpu(ne.block_addr); 57493770ab7SChao Yu if (__is_valid_data_blkaddr(blkaddr) && 57593770ab7SChao Yu !f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE)) 57693770ab7SChao Yu return -EFAULT; 57793770ab7SChao Yu 578e05df3b1SJaegeuk Kim /* cache nat entry */ 5791515aef0SChao Yu cache_nat_entry(sbi, nid, &ne); 5807735730dSChao Yu return 0; 581e05df3b1SJaegeuk Kim } 582e05df3b1SJaegeuk Kim 58379344efbSJaegeuk Kim /* 58479344efbSJaegeuk Kim * readahead MAX_RA_NODE number of node pages. 58579344efbSJaegeuk Kim */ 5864d57b86dSChao Yu static void f2fs_ra_node_pages(struct page *parent, int start, int n) 58779344efbSJaegeuk Kim { 58879344efbSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_P_SB(parent); 58979344efbSJaegeuk Kim struct blk_plug plug; 59079344efbSJaegeuk Kim int i, end; 59179344efbSJaegeuk Kim nid_t nid; 59279344efbSJaegeuk Kim 59379344efbSJaegeuk Kim blk_start_plug(&plug); 59479344efbSJaegeuk Kim 59579344efbSJaegeuk Kim /* Then, try readahead for siblings of the desired node */ 59679344efbSJaegeuk Kim end = start + n; 59779344efbSJaegeuk Kim end = min(end, NIDS_PER_BLOCK); 59879344efbSJaegeuk Kim for (i = start; i < end; i++) { 59979344efbSJaegeuk Kim nid = get_nid(parent, i, false); 6004d57b86dSChao Yu f2fs_ra_node_page(sbi, nid); 60179344efbSJaegeuk Kim } 60279344efbSJaegeuk Kim 60379344efbSJaegeuk Kim blk_finish_plug(&plug); 60479344efbSJaegeuk Kim } 60579344efbSJaegeuk Kim 6064d57b86dSChao Yu pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs) 6073cf45747SChao Yu { 6083cf45747SChao Yu const long direct_index = ADDRS_PER_INODE(dn->inode); 609d02a6e61SChao Yu const long direct_blks = ADDRS_PER_BLOCK(dn->inode); 610d02a6e61SChao Yu const long indirect_blks = ADDRS_PER_BLOCK(dn->inode) * NIDS_PER_BLOCK; 611d02a6e61SChao Yu unsigned int skipped_unit = ADDRS_PER_BLOCK(dn->inode); 6123cf45747SChao Yu int cur_level = dn->cur_level; 6133cf45747SChao Yu int max_level = dn->max_level; 6143cf45747SChao Yu pgoff_t base = 0; 6153cf45747SChao Yu 6163cf45747SChao Yu if (!dn->max_level) 6173cf45747SChao Yu return pgofs + 1; 6183cf45747SChao Yu 6193cf45747SChao Yu while (max_level-- > cur_level) 6203cf45747SChao Yu skipped_unit *= NIDS_PER_BLOCK; 6213cf45747SChao Yu 6223cf45747SChao Yu switch (dn->max_level) { 6233cf45747SChao Yu case 3: 6243cf45747SChao Yu base += 2 * indirect_blks; 625df561f66SGustavo A. R. Silva fallthrough; 6263cf45747SChao Yu case 2: 6273cf45747SChao Yu base += 2 * direct_blks; 628df561f66SGustavo A. R. Silva fallthrough; 6293cf45747SChao Yu case 1: 6303cf45747SChao Yu base += direct_index; 6313cf45747SChao Yu break; 6323cf45747SChao Yu default: 6333cf45747SChao Yu f2fs_bug_on(F2FS_I_SB(dn->inode), 1); 6343cf45747SChao Yu } 6353cf45747SChao Yu 6363cf45747SChao Yu return ((pgofs - base) / skipped_unit + 1) * skipped_unit + base; 6373cf45747SChao Yu } 6383cf45747SChao Yu 6390a8165d7SJaegeuk Kim /* 640e05df3b1SJaegeuk Kim * The maximum depth is four. 641e05df3b1SJaegeuk Kim * Offset[0] will have raw inode offset. 642e05df3b1SJaegeuk Kim */ 64381ca7350SChao Yu static int get_node_path(struct inode *inode, long block, 644de93653fSJaegeuk Kim int offset[4], unsigned int noffset[4]) 645e05df3b1SJaegeuk Kim { 64681ca7350SChao Yu const long direct_index = ADDRS_PER_INODE(inode); 647d02a6e61SChao Yu const long direct_blks = ADDRS_PER_BLOCK(inode); 648e05df3b1SJaegeuk Kim const long dptrs_per_blk = NIDS_PER_BLOCK; 649d02a6e61SChao Yu const long indirect_blks = ADDRS_PER_BLOCK(inode) * NIDS_PER_BLOCK; 650e05df3b1SJaegeuk Kim const long dindirect_blks = indirect_blks * NIDS_PER_BLOCK; 651e05df3b1SJaegeuk Kim int n = 0; 652e05df3b1SJaegeuk Kim int level = 0; 653e05df3b1SJaegeuk Kim 654e05df3b1SJaegeuk Kim noffset[0] = 0; 655e05df3b1SJaegeuk Kim 656e05df3b1SJaegeuk Kim if (block < direct_index) { 65725c0a6e5SNamjae Jeon offset[n] = block; 658e05df3b1SJaegeuk Kim goto got; 659e05df3b1SJaegeuk Kim } 660e05df3b1SJaegeuk Kim block -= direct_index; 661e05df3b1SJaegeuk Kim if (block < direct_blks) { 662e05df3b1SJaegeuk Kim offset[n++] = NODE_DIR1_BLOCK; 663e05df3b1SJaegeuk Kim noffset[n] = 1; 66425c0a6e5SNamjae Jeon offset[n] = block; 665e05df3b1SJaegeuk Kim level = 1; 666e05df3b1SJaegeuk Kim goto got; 667e05df3b1SJaegeuk Kim } 668e05df3b1SJaegeuk Kim block -= direct_blks; 669e05df3b1SJaegeuk Kim if (block < direct_blks) { 670e05df3b1SJaegeuk Kim offset[n++] = NODE_DIR2_BLOCK; 671e05df3b1SJaegeuk Kim noffset[n] = 2; 67225c0a6e5SNamjae Jeon offset[n] = block; 673e05df3b1SJaegeuk Kim level = 1; 674e05df3b1SJaegeuk Kim goto got; 675e05df3b1SJaegeuk Kim } 676e05df3b1SJaegeuk Kim block -= direct_blks; 677e05df3b1SJaegeuk Kim if (block < indirect_blks) { 678e05df3b1SJaegeuk Kim offset[n++] = NODE_IND1_BLOCK; 679e05df3b1SJaegeuk Kim noffset[n] = 3; 680e05df3b1SJaegeuk Kim offset[n++] = block / direct_blks; 681e05df3b1SJaegeuk Kim noffset[n] = 4 + offset[n - 1]; 68225c0a6e5SNamjae Jeon offset[n] = block % direct_blks; 683e05df3b1SJaegeuk Kim level = 2; 684e05df3b1SJaegeuk Kim goto got; 685e05df3b1SJaegeuk Kim } 686e05df3b1SJaegeuk Kim block -= indirect_blks; 687e05df3b1SJaegeuk Kim if (block < indirect_blks) { 688e05df3b1SJaegeuk Kim offset[n++] = NODE_IND2_BLOCK; 689e05df3b1SJaegeuk Kim noffset[n] = 4 + dptrs_per_blk; 690e05df3b1SJaegeuk Kim offset[n++] = block / direct_blks; 691e05df3b1SJaegeuk Kim noffset[n] = 5 + dptrs_per_blk + offset[n - 1]; 69225c0a6e5SNamjae Jeon offset[n] = block % direct_blks; 693e05df3b1SJaegeuk Kim level = 2; 694e05df3b1SJaegeuk Kim goto got; 695e05df3b1SJaegeuk Kim } 696e05df3b1SJaegeuk Kim block -= indirect_blks; 697e05df3b1SJaegeuk Kim if (block < dindirect_blks) { 698e05df3b1SJaegeuk Kim offset[n++] = NODE_DIND_BLOCK; 699e05df3b1SJaegeuk Kim noffset[n] = 5 + (dptrs_per_blk * 2); 700e05df3b1SJaegeuk Kim offset[n++] = block / indirect_blks; 701e05df3b1SJaegeuk Kim noffset[n] = 6 + (dptrs_per_blk * 2) + 702e05df3b1SJaegeuk Kim offset[n - 1] * (dptrs_per_blk + 1); 703e05df3b1SJaegeuk Kim offset[n++] = (block / direct_blks) % dptrs_per_blk; 704e05df3b1SJaegeuk Kim noffset[n] = 7 + (dptrs_per_blk * 2) + 705e05df3b1SJaegeuk Kim offset[n - 2] * (dptrs_per_blk + 1) + 706e05df3b1SJaegeuk Kim offset[n - 1]; 70725c0a6e5SNamjae Jeon offset[n] = block % direct_blks; 708e05df3b1SJaegeuk Kim level = 3; 709e05df3b1SJaegeuk Kim goto got; 710e05df3b1SJaegeuk Kim } else { 711adb6dc19SJaegeuk Kim return -E2BIG; 712e05df3b1SJaegeuk Kim } 713e05df3b1SJaegeuk Kim got: 714e05df3b1SJaegeuk Kim return level; 715e05df3b1SJaegeuk Kim } 716e05df3b1SJaegeuk Kim 717e05df3b1SJaegeuk Kim /* 718e05df3b1SJaegeuk Kim * Caller should call f2fs_put_dnode(dn). 7194f4124d0SChao Yu * Also, it should grab and release a rwsem by calling f2fs_lock_op() and 7207a88ddb5SChao Yu * f2fs_unlock_op() only if mode is set with ALLOC_NODE. 721e05df3b1SJaegeuk Kim */ 7224d57b86dSChao Yu int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode) 723e05df3b1SJaegeuk Kim { 7244081363fSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); 725e05df3b1SJaegeuk Kim struct page *npage[4]; 726f1a3b98eSJaegeuk Kim struct page *parent = NULL; 727e05df3b1SJaegeuk Kim int offset[4]; 728e05df3b1SJaegeuk Kim unsigned int noffset[4]; 729e05df3b1SJaegeuk Kim nid_t nids[4]; 7303cf45747SChao Yu int level, i = 0; 731e05df3b1SJaegeuk Kim int err = 0; 732e05df3b1SJaegeuk Kim 73381ca7350SChao Yu level = get_node_path(dn->inode, index, offset, noffset); 734adb6dc19SJaegeuk Kim if (level < 0) 735adb6dc19SJaegeuk Kim return level; 736e05df3b1SJaegeuk Kim 737e05df3b1SJaegeuk Kim nids[0] = dn->inode->i_ino; 7381646cfacSJaegeuk Kim npage[0] = dn->inode_page; 7391646cfacSJaegeuk Kim 7401646cfacSJaegeuk Kim if (!npage[0]) { 7414d57b86dSChao Yu npage[0] = f2fs_get_node_page(sbi, nids[0]); 742e05df3b1SJaegeuk Kim if (IS_ERR(npage[0])) 743e05df3b1SJaegeuk Kim return PTR_ERR(npage[0]); 7441646cfacSJaegeuk Kim } 745f1a3b98eSJaegeuk Kim 746f1a3b98eSJaegeuk Kim /* if inline_data is set, should not report any block indices */ 747f1a3b98eSJaegeuk Kim if (f2fs_has_inline_data(dn->inode) && index) { 74876629165SJaegeuk Kim err = -ENOENT; 749f1a3b98eSJaegeuk Kim f2fs_put_page(npage[0], 1); 750f1a3b98eSJaegeuk Kim goto release_out; 751f1a3b98eSJaegeuk Kim } 752f1a3b98eSJaegeuk Kim 753e05df3b1SJaegeuk Kim parent = npage[0]; 75452c2db3fSChangman Lee if (level != 0) 755e05df3b1SJaegeuk Kim nids[1] = get_nid(parent, offset[0], true); 756e05df3b1SJaegeuk Kim dn->inode_page = npage[0]; 757e05df3b1SJaegeuk Kim dn->inode_page_locked = true; 758e05df3b1SJaegeuk Kim 759e05df3b1SJaegeuk Kim /* get indirect or direct nodes */ 760e05df3b1SJaegeuk Kim for (i = 1; i <= level; i++) { 761e05df3b1SJaegeuk Kim bool done = false; 762e05df3b1SJaegeuk Kim 763266e97a8SJaegeuk Kim if (!nids[i] && mode == ALLOC_NODE) { 764e05df3b1SJaegeuk Kim /* alloc new node */ 7654d57b86dSChao Yu if (!f2fs_alloc_nid(sbi, &(nids[i]))) { 766e05df3b1SJaegeuk Kim err = -ENOSPC; 767e05df3b1SJaegeuk Kim goto release_pages; 768e05df3b1SJaegeuk Kim } 769e05df3b1SJaegeuk Kim 770e05df3b1SJaegeuk Kim dn->nid = nids[i]; 7714d57b86dSChao Yu npage[i] = f2fs_new_node_page(dn, noffset[i]); 772e05df3b1SJaegeuk Kim if (IS_ERR(npage[i])) { 7734d57b86dSChao Yu f2fs_alloc_nid_failed(sbi, nids[i]); 774e05df3b1SJaegeuk Kim err = PTR_ERR(npage[i]); 775e05df3b1SJaegeuk Kim goto release_pages; 776e05df3b1SJaegeuk Kim } 777e05df3b1SJaegeuk Kim 778e05df3b1SJaegeuk Kim set_nid(parent, offset[i - 1], nids[i], i == 1); 7794d57b86dSChao Yu f2fs_alloc_nid_done(sbi, nids[i]); 780e05df3b1SJaegeuk Kim done = true; 781266e97a8SJaegeuk Kim } else if (mode == LOOKUP_NODE_RA && i == level && level > 1) { 7824d57b86dSChao Yu npage[i] = f2fs_get_node_page_ra(parent, offset[i - 1]); 783e05df3b1SJaegeuk Kim if (IS_ERR(npage[i])) { 784e05df3b1SJaegeuk Kim err = PTR_ERR(npage[i]); 785e05df3b1SJaegeuk Kim goto release_pages; 786e05df3b1SJaegeuk Kim } 787e05df3b1SJaegeuk Kim done = true; 788e05df3b1SJaegeuk Kim } 789e05df3b1SJaegeuk Kim if (i == 1) { 790e05df3b1SJaegeuk Kim dn->inode_page_locked = false; 791e05df3b1SJaegeuk Kim unlock_page(parent); 792e05df3b1SJaegeuk Kim } else { 793e05df3b1SJaegeuk Kim f2fs_put_page(parent, 1); 794e05df3b1SJaegeuk Kim } 795e05df3b1SJaegeuk Kim 796e05df3b1SJaegeuk Kim if (!done) { 7974d57b86dSChao Yu npage[i] = f2fs_get_node_page(sbi, nids[i]); 798e05df3b1SJaegeuk Kim if (IS_ERR(npage[i])) { 799e05df3b1SJaegeuk Kim err = PTR_ERR(npage[i]); 800e05df3b1SJaegeuk Kim f2fs_put_page(npage[0], 0); 801e05df3b1SJaegeuk Kim goto release_out; 802e05df3b1SJaegeuk Kim } 803e05df3b1SJaegeuk Kim } 804e05df3b1SJaegeuk Kim if (i < level) { 805e05df3b1SJaegeuk Kim parent = npage[i]; 806e05df3b1SJaegeuk Kim nids[i + 1] = get_nid(parent, offset[i], false); 807e05df3b1SJaegeuk Kim } 808e05df3b1SJaegeuk Kim } 809e05df3b1SJaegeuk Kim dn->nid = nids[level]; 810e05df3b1SJaegeuk Kim dn->ofs_in_node = offset[level]; 811e05df3b1SJaegeuk Kim dn->node_page = npage[level]; 812a2ced1ceSChao Yu dn->data_blkaddr = f2fs_data_blkaddr(dn); 813e05df3b1SJaegeuk Kim return 0; 814e05df3b1SJaegeuk Kim 815e05df3b1SJaegeuk Kim release_pages: 816e05df3b1SJaegeuk Kim f2fs_put_page(parent, 1); 817e05df3b1SJaegeuk Kim if (i > 1) 818e05df3b1SJaegeuk Kim f2fs_put_page(npage[0], 0); 819e05df3b1SJaegeuk Kim release_out: 820e05df3b1SJaegeuk Kim dn->inode_page = NULL; 821e05df3b1SJaegeuk Kim dn->node_page = NULL; 8223cf45747SChao Yu if (err == -ENOENT) { 8233cf45747SChao Yu dn->cur_level = i; 8243cf45747SChao Yu dn->max_level = level; 8250a2aa8fbSJaegeuk Kim dn->ofs_in_node = offset[level]; 8263cf45747SChao Yu } 827e05df3b1SJaegeuk Kim return err; 828e05df3b1SJaegeuk Kim } 829e05df3b1SJaegeuk Kim 8307735730dSChao Yu static int truncate_node(struct dnode_of_data *dn) 831e05df3b1SJaegeuk Kim { 8324081363fSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); 833e05df3b1SJaegeuk Kim struct node_info ni; 8347735730dSChao Yu int err; 8350ea295ddSPan Bian pgoff_t index; 836e05df3b1SJaegeuk Kim 8377735730dSChao Yu err = f2fs_get_node_info(sbi, dn->nid, &ni); 8387735730dSChao Yu if (err) 8397735730dSChao Yu return err; 840e05df3b1SJaegeuk Kim 841e05df3b1SJaegeuk Kim /* Deallocate node address */ 8424d57b86dSChao Yu f2fs_invalidate_blocks(sbi, ni.blk_addr); 843000519f2SChao Yu dec_valid_node_count(sbi, dn->inode, dn->nid == dn->inode->i_ino); 844479f40c4SJaegeuk Kim set_node_addr(sbi, &ni, NULL_ADDR, false); 845e05df3b1SJaegeuk Kim 846e05df3b1SJaegeuk Kim if (dn->nid == dn->inode->i_ino) { 8474d57b86dSChao Yu f2fs_remove_orphan_inode(sbi, dn->nid); 848e05df3b1SJaegeuk Kim dec_valid_inode_count(sbi); 8490f18b462SJaegeuk Kim f2fs_inode_synced(dn->inode); 850e05df3b1SJaegeuk Kim } 851000519f2SChao Yu 852e05df3b1SJaegeuk Kim clear_node_page_dirty(dn->node_page); 853caf0047eSChao Yu set_sbi_flag(sbi, SBI_IS_DIRTY); 854e05df3b1SJaegeuk Kim 8550ea295ddSPan Bian index = dn->node_page->index; 856e05df3b1SJaegeuk Kim f2fs_put_page(dn->node_page, 1); 857bf39c00aSJaegeuk Kim 858bf39c00aSJaegeuk Kim invalidate_mapping_pages(NODE_MAPPING(sbi), 8590ea295ddSPan Bian index, index); 860bf39c00aSJaegeuk Kim 861e05df3b1SJaegeuk Kim dn->node_page = NULL; 86251dd6249SNamjae Jeon trace_f2fs_truncate_node(dn->inode, dn->nid, ni.blk_addr); 8637735730dSChao Yu 8647735730dSChao Yu return 0; 865e05df3b1SJaegeuk Kim } 866e05df3b1SJaegeuk Kim 867e05df3b1SJaegeuk Kim static int truncate_dnode(struct dnode_of_data *dn) 868e05df3b1SJaegeuk Kim { 869e05df3b1SJaegeuk Kim struct page *page; 8707735730dSChao Yu int err; 871e05df3b1SJaegeuk Kim 872e05df3b1SJaegeuk Kim if (dn->nid == 0) 873e05df3b1SJaegeuk Kim return 1; 874e05df3b1SJaegeuk Kim 875e05df3b1SJaegeuk Kim /* get direct node */ 8764d57b86dSChao Yu page = f2fs_get_node_page(F2FS_I_SB(dn->inode), dn->nid); 87745586c70SMasahiro Yamada if (PTR_ERR(page) == -ENOENT) 878e05df3b1SJaegeuk Kim return 1; 879e05df3b1SJaegeuk Kim else if (IS_ERR(page)) 880e05df3b1SJaegeuk Kim return PTR_ERR(page); 881e05df3b1SJaegeuk Kim 882e05df3b1SJaegeuk Kim /* Make dnode_of_data for parameter */ 883e05df3b1SJaegeuk Kim dn->node_page = page; 884e05df3b1SJaegeuk Kim dn->ofs_in_node = 0; 8854d57b86dSChao Yu f2fs_truncate_data_blocks(dn); 8867735730dSChao Yu err = truncate_node(dn); 8877735730dSChao Yu if (err) 8887735730dSChao Yu return err; 8897735730dSChao Yu 890e05df3b1SJaegeuk Kim return 1; 891e05df3b1SJaegeuk Kim } 892e05df3b1SJaegeuk Kim 893e05df3b1SJaegeuk Kim static int truncate_nodes(struct dnode_of_data *dn, unsigned int nofs, 894e05df3b1SJaegeuk Kim int ofs, int depth) 895e05df3b1SJaegeuk Kim { 896e05df3b1SJaegeuk Kim struct dnode_of_data rdn = *dn; 897e05df3b1SJaegeuk Kim struct page *page; 898e05df3b1SJaegeuk Kim struct f2fs_node *rn; 899e05df3b1SJaegeuk Kim nid_t child_nid; 900e05df3b1SJaegeuk Kim unsigned int child_nofs; 901e05df3b1SJaegeuk Kim int freed = 0; 902e05df3b1SJaegeuk Kim int i, ret; 903e05df3b1SJaegeuk Kim 904e05df3b1SJaegeuk Kim if (dn->nid == 0) 905e05df3b1SJaegeuk Kim return NIDS_PER_BLOCK + 1; 906e05df3b1SJaegeuk Kim 90751dd6249SNamjae Jeon trace_f2fs_truncate_nodes_enter(dn->inode, dn->nid, dn->data_blkaddr); 90851dd6249SNamjae Jeon 9094d57b86dSChao Yu page = f2fs_get_node_page(F2FS_I_SB(dn->inode), dn->nid); 91051dd6249SNamjae Jeon if (IS_ERR(page)) { 91151dd6249SNamjae Jeon trace_f2fs_truncate_nodes_exit(dn->inode, PTR_ERR(page)); 912e05df3b1SJaegeuk Kim return PTR_ERR(page); 91351dd6249SNamjae Jeon } 914e05df3b1SJaegeuk Kim 9154d57b86dSChao Yu f2fs_ra_node_pages(page, ofs, NIDS_PER_BLOCK); 91679344efbSJaegeuk Kim 91745590710SGu Zheng rn = F2FS_NODE(page); 918e05df3b1SJaegeuk Kim if (depth < 3) { 919e05df3b1SJaegeuk Kim for (i = ofs; i < NIDS_PER_BLOCK; i++, freed++) { 920e05df3b1SJaegeuk Kim child_nid = le32_to_cpu(rn->in.nid[i]); 921e05df3b1SJaegeuk Kim if (child_nid == 0) 922e05df3b1SJaegeuk Kim continue; 923e05df3b1SJaegeuk Kim rdn.nid = child_nid; 924e05df3b1SJaegeuk Kim ret = truncate_dnode(&rdn); 925e05df3b1SJaegeuk Kim if (ret < 0) 926e05df3b1SJaegeuk Kim goto out_err; 92712719ae1SJaegeuk Kim if (set_nid(page, i, 0, false)) 92893bae099SJaegeuk Kim dn->node_changed = true; 929e05df3b1SJaegeuk Kim } 930e05df3b1SJaegeuk Kim } else { 931e05df3b1SJaegeuk Kim child_nofs = nofs + ofs * (NIDS_PER_BLOCK + 1) + 1; 932e05df3b1SJaegeuk Kim for (i = ofs; i < NIDS_PER_BLOCK; i++) { 933e05df3b1SJaegeuk Kim child_nid = le32_to_cpu(rn->in.nid[i]); 934e05df3b1SJaegeuk Kim if (child_nid == 0) { 935e05df3b1SJaegeuk Kim child_nofs += NIDS_PER_BLOCK + 1; 936e05df3b1SJaegeuk Kim continue; 937e05df3b1SJaegeuk Kim } 938e05df3b1SJaegeuk Kim rdn.nid = child_nid; 939e05df3b1SJaegeuk Kim ret = truncate_nodes(&rdn, child_nofs, 0, depth - 1); 940e05df3b1SJaegeuk Kim if (ret == (NIDS_PER_BLOCK + 1)) { 94112719ae1SJaegeuk Kim if (set_nid(page, i, 0, false)) 94293bae099SJaegeuk Kim dn->node_changed = true; 943e05df3b1SJaegeuk Kim child_nofs += ret; 944e05df3b1SJaegeuk Kim } else if (ret < 0 && ret != -ENOENT) { 945e05df3b1SJaegeuk Kim goto out_err; 946e05df3b1SJaegeuk Kim } 947e05df3b1SJaegeuk Kim } 948e05df3b1SJaegeuk Kim freed = child_nofs; 949e05df3b1SJaegeuk Kim } 950e05df3b1SJaegeuk Kim 951e05df3b1SJaegeuk Kim if (!ofs) { 952e05df3b1SJaegeuk Kim /* remove current indirect node */ 953e05df3b1SJaegeuk Kim dn->node_page = page; 9547735730dSChao Yu ret = truncate_node(dn); 9557735730dSChao Yu if (ret) 9567735730dSChao Yu goto out_err; 957e05df3b1SJaegeuk Kim freed++; 958e05df3b1SJaegeuk Kim } else { 959e05df3b1SJaegeuk Kim f2fs_put_page(page, 1); 960e05df3b1SJaegeuk Kim } 96151dd6249SNamjae Jeon trace_f2fs_truncate_nodes_exit(dn->inode, freed); 962e05df3b1SJaegeuk Kim return freed; 963e05df3b1SJaegeuk Kim 964e05df3b1SJaegeuk Kim out_err: 965e05df3b1SJaegeuk Kim f2fs_put_page(page, 1); 96651dd6249SNamjae Jeon trace_f2fs_truncate_nodes_exit(dn->inode, ret); 967e05df3b1SJaegeuk Kim return ret; 968e05df3b1SJaegeuk Kim } 969e05df3b1SJaegeuk Kim 970e05df3b1SJaegeuk Kim static int truncate_partial_nodes(struct dnode_of_data *dn, 971e05df3b1SJaegeuk Kim struct f2fs_inode *ri, int *offset, int depth) 972e05df3b1SJaegeuk Kim { 973e05df3b1SJaegeuk Kim struct page *pages[2]; 974e05df3b1SJaegeuk Kim nid_t nid[3]; 975e05df3b1SJaegeuk Kim nid_t child_nid; 976e05df3b1SJaegeuk Kim int err = 0; 977e05df3b1SJaegeuk Kim int i; 978e05df3b1SJaegeuk Kim int idx = depth - 2; 979e05df3b1SJaegeuk Kim 980e05df3b1SJaegeuk Kim nid[0] = le32_to_cpu(ri->i_nid[offset[0] - NODE_DIR1_BLOCK]); 981e05df3b1SJaegeuk Kim if (!nid[0]) 982e05df3b1SJaegeuk Kim return 0; 983e05df3b1SJaegeuk Kim 984e05df3b1SJaegeuk Kim /* get indirect nodes in the path */ 985a225dca3Sshifei10.ge for (i = 0; i < idx + 1; i++) { 986e1c42045Sarter97 /* reference count'll be increased */ 9874d57b86dSChao Yu pages[i] = f2fs_get_node_page(F2FS_I_SB(dn->inode), nid[i]); 988e05df3b1SJaegeuk Kim if (IS_ERR(pages[i])) { 989e05df3b1SJaegeuk Kim err = PTR_ERR(pages[i]); 990a225dca3Sshifei10.ge idx = i - 1; 991e05df3b1SJaegeuk Kim goto fail; 992e05df3b1SJaegeuk Kim } 993e05df3b1SJaegeuk Kim nid[i + 1] = get_nid(pages[i], offset[i + 1], false); 994e05df3b1SJaegeuk Kim } 995e05df3b1SJaegeuk Kim 9964d57b86dSChao Yu f2fs_ra_node_pages(pages[idx], offset[idx + 1], NIDS_PER_BLOCK); 99779344efbSJaegeuk Kim 998e05df3b1SJaegeuk Kim /* free direct nodes linked to a partial indirect node */ 999a225dca3Sshifei10.ge for (i = offset[idx + 1]; i < NIDS_PER_BLOCK; i++) { 1000e05df3b1SJaegeuk Kim child_nid = get_nid(pages[idx], i, false); 1001e05df3b1SJaegeuk Kim if (!child_nid) 1002e05df3b1SJaegeuk Kim continue; 1003e05df3b1SJaegeuk Kim dn->nid = child_nid; 1004e05df3b1SJaegeuk Kim err = truncate_dnode(dn); 1005e05df3b1SJaegeuk Kim if (err < 0) 1006e05df3b1SJaegeuk Kim goto fail; 100712719ae1SJaegeuk Kim if (set_nid(pages[idx], i, 0, false)) 100893bae099SJaegeuk Kim dn->node_changed = true; 1009e05df3b1SJaegeuk Kim } 1010e05df3b1SJaegeuk Kim 1011a225dca3Sshifei10.ge if (offset[idx + 1] == 0) { 1012e05df3b1SJaegeuk Kim dn->node_page = pages[idx]; 1013e05df3b1SJaegeuk Kim dn->nid = nid[idx]; 10147735730dSChao Yu err = truncate_node(dn); 10157735730dSChao Yu if (err) 10167735730dSChao Yu goto fail; 1017e05df3b1SJaegeuk Kim } else { 1018e05df3b1SJaegeuk Kim f2fs_put_page(pages[idx], 1); 1019e05df3b1SJaegeuk Kim } 1020e05df3b1SJaegeuk Kim offset[idx]++; 1021a225dca3Sshifei10.ge offset[idx + 1] = 0; 1022a225dca3Sshifei10.ge idx--; 1023e05df3b1SJaegeuk Kim fail: 1024a225dca3Sshifei10.ge for (i = idx; i >= 0; i--) 1025e05df3b1SJaegeuk Kim f2fs_put_page(pages[i], 1); 102651dd6249SNamjae Jeon 102751dd6249SNamjae Jeon trace_f2fs_truncate_partial_nodes(dn->inode, nid, depth, err); 102851dd6249SNamjae Jeon 1029e05df3b1SJaegeuk Kim return err; 1030e05df3b1SJaegeuk Kim } 1031e05df3b1SJaegeuk Kim 10320a8165d7SJaegeuk Kim /* 1033e05df3b1SJaegeuk Kim * All the block addresses of data and nodes should be nullified. 1034e05df3b1SJaegeuk Kim */ 10354d57b86dSChao Yu int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from) 1036e05df3b1SJaegeuk Kim { 10374081363fSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 1038e05df3b1SJaegeuk Kim int err = 0, cont = 1; 1039e05df3b1SJaegeuk Kim int level, offset[4], noffset[4]; 10407dd690c8SJaegeuk Kim unsigned int nofs = 0; 104158bfaf44SJaegeuk Kim struct f2fs_inode *ri; 1042e05df3b1SJaegeuk Kim struct dnode_of_data dn; 1043e05df3b1SJaegeuk Kim struct page *page; 1044e05df3b1SJaegeuk Kim 104551dd6249SNamjae Jeon trace_f2fs_truncate_inode_blocks_enter(inode, from); 104651dd6249SNamjae Jeon 104781ca7350SChao Yu level = get_node_path(inode, from, offset, noffset); 10489039d835SYubo Feng if (level < 0) { 10499039d835SYubo Feng trace_f2fs_truncate_inode_blocks_exit(inode, level); 1050adb6dc19SJaegeuk Kim return level; 10519039d835SYubo Feng } 1052ff373558SJaegeuk Kim 10534d57b86dSChao Yu page = f2fs_get_node_page(sbi, inode->i_ino); 105451dd6249SNamjae Jeon if (IS_ERR(page)) { 105551dd6249SNamjae Jeon trace_f2fs_truncate_inode_blocks_exit(inode, PTR_ERR(page)); 1056e05df3b1SJaegeuk Kim return PTR_ERR(page); 105751dd6249SNamjae Jeon } 1058e05df3b1SJaegeuk Kim 1059e05df3b1SJaegeuk Kim set_new_dnode(&dn, inode, page, NULL, 0); 1060e05df3b1SJaegeuk Kim unlock_page(page); 1061e05df3b1SJaegeuk Kim 106258bfaf44SJaegeuk Kim ri = F2FS_INODE(page); 1063e05df3b1SJaegeuk Kim switch (level) { 1064e05df3b1SJaegeuk Kim case 0: 1065e05df3b1SJaegeuk Kim case 1: 1066e05df3b1SJaegeuk Kim nofs = noffset[1]; 1067e05df3b1SJaegeuk Kim break; 1068e05df3b1SJaegeuk Kim case 2: 1069e05df3b1SJaegeuk Kim nofs = noffset[1]; 1070e05df3b1SJaegeuk Kim if (!offset[level - 1]) 1071e05df3b1SJaegeuk Kim goto skip_partial; 107258bfaf44SJaegeuk Kim err = truncate_partial_nodes(&dn, ri, offset, level); 1073e05df3b1SJaegeuk Kim if (err < 0 && err != -ENOENT) 1074e05df3b1SJaegeuk Kim goto fail; 1075e05df3b1SJaegeuk Kim nofs += 1 + NIDS_PER_BLOCK; 1076e05df3b1SJaegeuk Kim break; 1077e05df3b1SJaegeuk Kim case 3: 1078e05df3b1SJaegeuk Kim nofs = 5 + 2 * NIDS_PER_BLOCK; 1079e05df3b1SJaegeuk Kim if (!offset[level - 1]) 1080e05df3b1SJaegeuk Kim goto skip_partial; 108158bfaf44SJaegeuk Kim err = truncate_partial_nodes(&dn, ri, offset, level); 1082e05df3b1SJaegeuk Kim if (err < 0 && err != -ENOENT) 1083e05df3b1SJaegeuk Kim goto fail; 1084e05df3b1SJaegeuk Kim break; 1085e05df3b1SJaegeuk Kim default: 1086e05df3b1SJaegeuk Kim BUG(); 1087e05df3b1SJaegeuk Kim } 1088e05df3b1SJaegeuk Kim 1089e05df3b1SJaegeuk Kim skip_partial: 1090e05df3b1SJaegeuk Kim while (cont) { 109158bfaf44SJaegeuk Kim dn.nid = le32_to_cpu(ri->i_nid[offset[0] - NODE_DIR1_BLOCK]); 1092e05df3b1SJaegeuk Kim switch (offset[0]) { 1093e05df3b1SJaegeuk Kim case NODE_DIR1_BLOCK: 1094e05df3b1SJaegeuk Kim case NODE_DIR2_BLOCK: 1095e05df3b1SJaegeuk Kim err = truncate_dnode(&dn); 1096e05df3b1SJaegeuk Kim break; 1097e05df3b1SJaegeuk Kim 1098e05df3b1SJaegeuk Kim case NODE_IND1_BLOCK: 1099e05df3b1SJaegeuk Kim case NODE_IND2_BLOCK: 1100e05df3b1SJaegeuk Kim err = truncate_nodes(&dn, nofs, offset[1], 2); 1101e05df3b1SJaegeuk Kim break; 1102e05df3b1SJaegeuk Kim 1103e05df3b1SJaegeuk Kim case NODE_DIND_BLOCK: 1104e05df3b1SJaegeuk Kim err = truncate_nodes(&dn, nofs, offset[1], 3); 1105e05df3b1SJaegeuk Kim cont = 0; 1106e05df3b1SJaegeuk Kim break; 1107e05df3b1SJaegeuk Kim 1108e05df3b1SJaegeuk Kim default: 1109e05df3b1SJaegeuk Kim BUG(); 1110e05df3b1SJaegeuk Kim } 1111e05df3b1SJaegeuk Kim if (err < 0 && err != -ENOENT) 1112e05df3b1SJaegeuk Kim goto fail; 1113e05df3b1SJaegeuk Kim if (offset[1] == 0 && 111458bfaf44SJaegeuk Kim ri->i_nid[offset[0] - NODE_DIR1_BLOCK]) { 1115e05df3b1SJaegeuk Kim lock_page(page); 1116ff373558SJaegeuk Kim BUG_ON(page->mapping != NODE_MAPPING(sbi)); 1117bae0ee7aSChao Yu f2fs_wait_on_page_writeback(page, NODE, true, true); 111858bfaf44SJaegeuk Kim ri->i_nid[offset[0] - NODE_DIR1_BLOCK] = 0; 1119e05df3b1SJaegeuk Kim set_page_dirty(page); 1120e05df3b1SJaegeuk Kim unlock_page(page); 1121e05df3b1SJaegeuk Kim } 1122e05df3b1SJaegeuk Kim offset[1] = 0; 1123e05df3b1SJaegeuk Kim offset[0]++; 1124e05df3b1SJaegeuk Kim nofs += err; 1125e05df3b1SJaegeuk Kim } 1126e05df3b1SJaegeuk Kim fail: 1127e05df3b1SJaegeuk Kim f2fs_put_page(page, 0); 112851dd6249SNamjae Jeon trace_f2fs_truncate_inode_blocks_exit(inode, err); 1129e05df3b1SJaegeuk Kim return err > 0 ? 0 : err; 1130e05df3b1SJaegeuk Kim } 1131e05df3b1SJaegeuk Kim 11329c77f754SJaegeuk Kim /* caller must lock inode page */ 11334d57b86dSChao Yu int f2fs_truncate_xattr_node(struct inode *inode) 11344f16fb0fSJaegeuk Kim { 11354081363fSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 11364f16fb0fSJaegeuk Kim nid_t nid = F2FS_I(inode)->i_xattr_nid; 11374f16fb0fSJaegeuk Kim struct dnode_of_data dn; 11384f16fb0fSJaegeuk Kim struct page *npage; 11397735730dSChao Yu int err; 11404f16fb0fSJaegeuk Kim 11414f16fb0fSJaegeuk Kim if (!nid) 11424f16fb0fSJaegeuk Kim return 0; 11434f16fb0fSJaegeuk Kim 11444d57b86dSChao Yu npage = f2fs_get_node_page(sbi, nid); 11454f16fb0fSJaegeuk Kim if (IS_ERR(npage)) 11464f16fb0fSJaegeuk Kim return PTR_ERR(npage); 11474f16fb0fSJaegeuk Kim 11487735730dSChao Yu set_new_dnode(&dn, inode, NULL, npage, nid); 11497735730dSChao Yu err = truncate_node(&dn); 11507735730dSChao Yu if (err) { 11517735730dSChao Yu f2fs_put_page(npage, 1); 11527735730dSChao Yu return err; 11537735730dSChao Yu } 11547735730dSChao Yu 1155205b9822SJaegeuk Kim f2fs_i_xnid_write(inode, 0); 115665985d93SJaegeuk Kim 11574f16fb0fSJaegeuk Kim return 0; 11584f16fb0fSJaegeuk Kim } 11594f16fb0fSJaegeuk Kim 116039936837SJaegeuk Kim /* 11614f4124d0SChao Yu * Caller should grab and release a rwsem by calling f2fs_lock_op() and 11624f4124d0SChao Yu * f2fs_unlock_op(). 116339936837SJaegeuk Kim */ 11644d57b86dSChao Yu int f2fs_remove_inode_page(struct inode *inode) 1165e05df3b1SJaegeuk Kim { 1166e05df3b1SJaegeuk Kim struct dnode_of_data dn; 116713ec7297SChao Yu int err; 1168e05df3b1SJaegeuk Kim 1169c2e69583SJaegeuk Kim set_new_dnode(&dn, inode, NULL, NULL, inode->i_ino); 11704d57b86dSChao Yu err = f2fs_get_dnode_of_data(&dn, 0, LOOKUP_NODE); 117113ec7297SChao Yu if (err) 117213ec7297SChao Yu return err; 1173e05df3b1SJaegeuk Kim 11744d57b86dSChao Yu err = f2fs_truncate_xattr_node(inode); 117513ec7297SChao Yu if (err) { 1176c2e69583SJaegeuk Kim f2fs_put_dnode(&dn); 117713ec7297SChao Yu return err; 1178e05df3b1SJaegeuk Kim } 1179c2e69583SJaegeuk Kim 1180c2e69583SJaegeuk Kim /* remove potential inline_data blocks */ 1181c2e69583SJaegeuk Kim if (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || 1182c2e69583SJaegeuk Kim S_ISLNK(inode->i_mode)) 11834d57b86dSChao Yu f2fs_truncate_data_blocks_range(&dn, 1); 1184c2e69583SJaegeuk Kim 1185e1c42045Sarter97 /* 0 is possible, after f2fs_new_inode() has failed */ 11868d714f8aSJaegeuk Kim if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) { 11878d714f8aSJaegeuk Kim f2fs_put_dnode(&dn); 11888d714f8aSJaegeuk Kim return -EIO; 11898d714f8aSJaegeuk Kim } 11908b6810f8SChao Yu 11918b6810f8SChao Yu if (unlikely(inode->i_blocks != 0 && inode->i_blocks != 8)) { 1192097a7686SChao Yu f2fs_warn(F2FS_I_SB(inode), 1193097a7686SChao Yu "f2fs_remove_inode_page: inconsistent i_blocks, ino:%lu, iblocks:%llu", 1194dcbb4c10SJoe Perches inode->i_ino, (unsigned long long)inode->i_blocks); 11958b6810f8SChao Yu set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_FSCK); 11968b6810f8SChao Yu } 1197c2e69583SJaegeuk Kim 1198c2e69583SJaegeuk Kim /* will put inode & node pages */ 11997735730dSChao Yu err = truncate_node(&dn); 12007735730dSChao Yu if (err) { 12017735730dSChao Yu f2fs_put_dnode(&dn); 12027735730dSChao Yu return err; 12037735730dSChao Yu } 120413ec7297SChao Yu return 0; 1205e05df3b1SJaegeuk Kim } 1206e05df3b1SJaegeuk Kim 12074d57b86dSChao Yu struct page *f2fs_new_inode_page(struct inode *inode) 1208e05df3b1SJaegeuk Kim { 1209e05df3b1SJaegeuk Kim struct dnode_of_data dn; 1210e05df3b1SJaegeuk Kim 1211e05df3b1SJaegeuk Kim /* allocate inode page for new inode */ 1212e05df3b1SJaegeuk Kim set_new_dnode(&dn, inode, NULL, NULL, inode->i_ino); 121344a83ff6SJaegeuk Kim 121444a83ff6SJaegeuk Kim /* caller should f2fs_put_page(page, 1); */ 12154d57b86dSChao Yu return f2fs_new_node_page(&dn, 0); 1216e05df3b1SJaegeuk Kim } 1217e05df3b1SJaegeuk Kim 12184d57b86dSChao Yu struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs) 1219e05df3b1SJaegeuk Kim { 12204081363fSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); 122125cc5d3bSJaegeuk Kim struct node_info new_ni; 1222e05df3b1SJaegeuk Kim struct page *page; 1223e05df3b1SJaegeuk Kim int err; 1224e05df3b1SJaegeuk Kim 122591942321SJaegeuk Kim if (unlikely(is_inode_flag_set(dn->inode, FI_NO_ALLOC))) 1226e05df3b1SJaegeuk Kim return ERR_PTR(-EPERM); 1227e05df3b1SJaegeuk Kim 1228300e129cSJaegeuk Kim page = f2fs_grab_cache_page(NODE_MAPPING(sbi), dn->nid, false); 1229e05df3b1SJaegeuk Kim if (!page) 1230e05df3b1SJaegeuk Kim return ERR_PTR(-ENOMEM); 1231e05df3b1SJaegeuk Kim 12320abd675eSChao Yu if (unlikely((err = inc_valid_node_count(sbi, dn->inode, !ofs)))) 12339c02740cSJaegeuk Kim goto fail; 12340abd675eSChao Yu 123525cc5d3bSJaegeuk Kim #ifdef CONFIG_F2FS_CHECK_FS 12367735730dSChao Yu err = f2fs_get_node_info(sbi, dn->nid, &new_ni); 12377735730dSChao Yu if (err) { 12387735730dSChao Yu dec_valid_node_count(sbi, dn->inode, !ofs); 12397735730dSChao Yu goto fail; 12407735730dSChao Yu } 124125cc5d3bSJaegeuk Kim f2fs_bug_on(sbi, new_ni.blk_addr != NULL_ADDR); 124225cc5d3bSJaegeuk Kim #endif 124325cc5d3bSJaegeuk Kim new_ni.nid = dn->nid; 1244e05df3b1SJaegeuk Kim new_ni.ino = dn->inode->i_ino; 124525cc5d3bSJaegeuk Kim new_ni.blk_addr = NULL_ADDR; 124625cc5d3bSJaegeuk Kim new_ni.flag = 0; 124725cc5d3bSJaegeuk Kim new_ni.version = 0; 1248479f40c4SJaegeuk Kim set_node_addr(sbi, &new_ni, NEW_ADDR, false); 12499c02740cSJaegeuk Kim 1250bae0ee7aSChao Yu f2fs_wait_on_page_writeback(page, NODE, true, true); 12519c02740cSJaegeuk Kim fill_node_footer(page, dn->nid, dn->inode->i_ino, ofs, true); 1252c5667575SChao Yu set_cold_node(page, S_ISDIR(dn->inode->i_mode)); 1253237c0790SJaegeuk Kim if (!PageUptodate(page)) 12549c02740cSJaegeuk Kim SetPageUptodate(page); 125512719ae1SJaegeuk Kim if (set_page_dirty(page)) 125612719ae1SJaegeuk Kim dn->node_changed = true; 1257e05df3b1SJaegeuk Kim 12584bc8e9bcSChao Yu if (f2fs_has_xattr_block(ofs)) 1259205b9822SJaegeuk Kim f2fs_i_xnid_write(dn->inode, dn->nid); 1260479bd73aSJaegeuk Kim 1261e05df3b1SJaegeuk Kim if (ofs == 0) 1262e05df3b1SJaegeuk Kim inc_valid_inode_count(sbi); 1263e05df3b1SJaegeuk Kim return page; 1264e05df3b1SJaegeuk Kim 1265e05df3b1SJaegeuk Kim fail: 126671e9fec5SJaegeuk Kim clear_node_page_dirty(page); 1267e05df3b1SJaegeuk Kim f2fs_put_page(page, 1); 1268e05df3b1SJaegeuk Kim return ERR_PTR(err); 1269e05df3b1SJaegeuk Kim } 1270e05df3b1SJaegeuk Kim 127156ae674cSJaegeuk Kim /* 127256ae674cSJaegeuk Kim * Caller should do after getting the following values. 127356ae674cSJaegeuk Kim * 0: f2fs_put_page(page, 0) 127486531d6bSJaegeuk Kim * LOCKED_PAGE or error: f2fs_put_page(page, 1) 127556ae674cSJaegeuk Kim */ 127604d328deSMike Christie static int read_node_page(struct page *page, int op_flags) 1277e05df3b1SJaegeuk Kim { 12784081363fSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_P_SB(page); 1279e05df3b1SJaegeuk Kim struct node_info ni; 1280cf04e8ebSJaegeuk Kim struct f2fs_io_info fio = { 128105ca3632SJaegeuk Kim .sbi = sbi, 1282cf04e8ebSJaegeuk Kim .type = NODE, 128304d328deSMike Christie .op = REQ_OP_READ, 128404d328deSMike Christie .op_flags = op_flags, 128505ca3632SJaegeuk Kim .page = page, 12864375a336SJaegeuk Kim .encrypted_page = NULL, 1287cf04e8ebSJaegeuk Kim }; 12887735730dSChao Yu int err; 1289e05df3b1SJaegeuk Kim 129054c55c4eSWeichao Guo if (PageUptodate(page)) { 1291b42b179bSChao Yu if (!f2fs_inode_chksum_verify(sbi, page)) { 1292b42b179bSChao Yu ClearPageUptodate(page); 129310f966bbSChao Yu return -EFSBADCRC; 1294b42b179bSChao Yu } 12953bdad3c7SJaegeuk Kim return LOCKED_PAGE; 129654c55c4eSWeichao Guo } 12973bdad3c7SJaegeuk Kim 12987735730dSChao Yu err = f2fs_get_node_info(sbi, page->index, &ni); 12997735730dSChao Yu if (err) 13007735730dSChao Yu return err; 1301e05df3b1SJaegeuk Kim 130283a3bfdbSJaegeuk Kim if (unlikely(ni.blk_addr == NULL_ADDR) || 130383a3bfdbSJaegeuk Kim is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN)) { 13042bca1e23SJaegeuk Kim ClearPageUptodate(page); 1305e05df3b1SJaegeuk Kim return -ENOENT; 1306393ff91fSJaegeuk Kim } 1307393ff91fSJaegeuk Kim 13087a9d7548SChao Yu fio.new_blkaddr = fio.old_blkaddr = ni.blk_addr; 13098b83ac81SChao Yu 13108b83ac81SChao Yu err = f2fs_submit_page_bio(&fio); 13118b83ac81SChao Yu 13128b83ac81SChao Yu if (!err) 13138b83ac81SChao Yu f2fs_update_iostat(sbi, FS_NODE_READ_IO, F2FS_BLKSIZE); 13148b83ac81SChao Yu 13158b83ac81SChao Yu return err; 1316e05df3b1SJaegeuk Kim } 1317e05df3b1SJaegeuk Kim 13180a8165d7SJaegeuk Kim /* 1319e05df3b1SJaegeuk Kim * Readahead a node page 1320e05df3b1SJaegeuk Kim */ 13214d57b86dSChao Yu void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid) 1322e05df3b1SJaegeuk Kim { 1323e05df3b1SJaegeuk Kim struct page *apage; 132456ae674cSJaegeuk Kim int err; 1325e05df3b1SJaegeuk Kim 1326e8458725SChao Yu if (!nid) 1327e8458725SChao Yu return; 13284d57b86dSChao Yu if (f2fs_check_nid_range(sbi, nid)) 1329a4f843bdSJaegeuk Kim return; 1330e8458725SChao Yu 13315ec2d99dSMatthew Wilcox apage = xa_load(&NODE_MAPPING(sbi)->i_pages, nid); 1332999270deSFan Li if (apage) 1333393ff91fSJaegeuk Kim return; 1334e05df3b1SJaegeuk Kim 1335300e129cSJaegeuk Kim apage = f2fs_grab_cache_page(NODE_MAPPING(sbi), nid, false); 1336e05df3b1SJaegeuk Kim if (!apage) 1337e05df3b1SJaegeuk Kim return; 1338e05df3b1SJaegeuk Kim 133970246286SChristoph Hellwig err = read_node_page(apage, REQ_RAHEAD); 134086531d6bSJaegeuk Kim f2fs_put_page(apage, err ? 1 : 0); 1341e05df3b1SJaegeuk Kim } 1342e05df3b1SJaegeuk Kim 134317a0ee55SJaegeuk Kim static struct page *__get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid, 13440e022ea8SChao Yu struct page *parent, int start) 1345e05df3b1SJaegeuk Kim { 134656ae674cSJaegeuk Kim struct page *page; 134756ae674cSJaegeuk Kim int err; 13484aa69d56SJaegeuk Kim 13494aa69d56SJaegeuk Kim if (!nid) 13504aa69d56SJaegeuk Kim return ERR_PTR(-ENOENT); 13514d57b86dSChao Yu if (f2fs_check_nid_range(sbi, nid)) 1352a4f843bdSJaegeuk Kim return ERR_PTR(-EINVAL); 1353afcb7ca0SJaegeuk Kim repeat: 1354300e129cSJaegeuk Kim page = f2fs_grab_cache_page(NODE_MAPPING(sbi), nid, false); 1355e05df3b1SJaegeuk Kim if (!page) 1356e05df3b1SJaegeuk Kim return ERR_PTR(-ENOMEM); 1357e05df3b1SJaegeuk Kim 135870fd7614SChristoph Hellwig err = read_node_page(page, 0); 135986531d6bSJaegeuk Kim if (err < 0) { 136086531d6bSJaegeuk Kim f2fs_put_page(page, 1); 1361e05df3b1SJaegeuk Kim return ERR_PTR(err); 1362e1c51b9fSChao Yu } else if (err == LOCKED_PAGE) { 13631f258ec1SChao Yu err = 0; 1364e1c51b9fSChao Yu goto page_hit; 136586531d6bSJaegeuk Kim } 1366aaf96075SJaegeuk Kim 13670e022ea8SChao Yu if (parent) 13684d57b86dSChao Yu f2fs_ra_node_pages(parent, start + 1, MAX_RA_NODE); 13690e022ea8SChao Yu 1370e1c51b9fSChao Yu lock_page(page); 1371e1c51b9fSChao Yu 13724ef51a8fSJaegeuk Kim if (unlikely(page->mapping != NODE_MAPPING(sbi))) { 1373afcb7ca0SJaegeuk Kim f2fs_put_page(page, 1); 1374afcb7ca0SJaegeuk Kim goto repeat; 1375afcb7ca0SJaegeuk Kim } 13761563ac75SChao Yu 13771f258ec1SChao Yu if (unlikely(!PageUptodate(page))) { 13781f258ec1SChao Yu err = -EIO; 13791563ac75SChao Yu goto out_err; 13801f258ec1SChao Yu } 1381704956ecSChao Yu 1382704956ecSChao Yu if (!f2fs_inode_chksum_verify(sbi, page)) { 138310f966bbSChao Yu err = -EFSBADCRC; 1384704956ecSChao Yu goto out_err; 1385704956ecSChao Yu } 1386e1c51b9fSChao Yu page_hit: 13870c9df7fbSYunlong Song if(unlikely(nid != nid_of_node(page))) { 1388dcbb4c10SJoe Perches f2fs_warn(sbi, "inconsistent node block, nid:%lu, node_footer[nid:%u,ino:%u,ofs:%u,cpver:%llu,blkaddr:%u]", 13891f258ec1SChao Yu nid, nid_of_node(page), ino_of_node(page), 13901f258ec1SChao Yu ofs_of_node(page), cpver_of_node(page), 13911f258ec1SChao Yu next_blkaddr_of_node(page)); 13921f258ec1SChao Yu err = -EINVAL; 13930c9df7fbSYunlong Song out_err: 1394ee605234SJaegeuk Kim ClearPageUptodate(page); 13950c9df7fbSYunlong Song f2fs_put_page(page, 1); 13961f258ec1SChao Yu return ERR_PTR(err); 13970c9df7fbSYunlong Song } 1398e05df3b1SJaegeuk Kim return page; 1399e05df3b1SJaegeuk Kim } 1400e05df3b1SJaegeuk Kim 14014d57b86dSChao Yu struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid) 14020e022ea8SChao Yu { 14030e022ea8SChao Yu return __get_node_page(sbi, nid, NULL, 0); 14040e022ea8SChao Yu } 14050e022ea8SChao Yu 14064d57b86dSChao Yu struct page *f2fs_get_node_page_ra(struct page *parent, int start) 1407e05df3b1SJaegeuk Kim { 14084081363fSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_P_SB(parent); 14090e022ea8SChao Yu nid_t nid = get_nid(parent, start, false); 1410e05df3b1SJaegeuk Kim 14110e022ea8SChao Yu return __get_node_page(sbi, nid, parent, start); 1412e05df3b1SJaegeuk Kim } 1413e05df3b1SJaegeuk Kim 14142049d4fcSJaegeuk Kim static void flush_inline_data(struct f2fs_sb_info *sbi, nid_t ino) 14152049d4fcSJaegeuk Kim { 14162049d4fcSJaegeuk Kim struct inode *inode; 14172049d4fcSJaegeuk Kim struct page *page; 14180f3311a8SChao Yu int ret; 14192049d4fcSJaegeuk Kim 14202049d4fcSJaegeuk Kim /* should flush inline_data before evict_inode */ 14212049d4fcSJaegeuk Kim inode = ilookup(sbi->sb, ino); 14222049d4fcSJaegeuk Kim if (!inode) 14232049d4fcSJaegeuk Kim return; 14242049d4fcSJaegeuk Kim 142501eccef7SChao Yu page = f2fs_pagecache_get_page(inode->i_mapping, 0, 142601eccef7SChao Yu FGP_LOCK|FGP_NOWAIT, 0); 14272049d4fcSJaegeuk Kim if (!page) 14282049d4fcSJaegeuk Kim goto iput_out; 14292049d4fcSJaegeuk Kim 14302049d4fcSJaegeuk Kim if (!PageUptodate(page)) 14312049d4fcSJaegeuk Kim goto page_out; 14322049d4fcSJaegeuk Kim 14332049d4fcSJaegeuk Kim if (!PageDirty(page)) 14342049d4fcSJaegeuk Kim goto page_out; 14352049d4fcSJaegeuk Kim 14362049d4fcSJaegeuk Kim if (!clear_page_dirty_for_io(page)) 14372049d4fcSJaegeuk Kim goto page_out; 14382049d4fcSJaegeuk Kim 14390f3311a8SChao Yu ret = f2fs_write_inline_data(inode, page); 14402049d4fcSJaegeuk Kim inode_dec_dirty_pages(inode); 14414d57b86dSChao Yu f2fs_remove_dirty_inode(inode); 14420f3311a8SChao Yu if (ret) 14432049d4fcSJaegeuk Kim set_page_dirty(page); 14442049d4fcSJaegeuk Kim page_out: 14454a6de50dSJaegeuk Kim f2fs_put_page(page, 1); 14462049d4fcSJaegeuk Kim iput_out: 14472049d4fcSJaegeuk Kim iput(inode); 14482049d4fcSJaegeuk Kim } 14492049d4fcSJaegeuk Kim 1450608514deSJaegeuk Kim static struct page *last_fsync_dnode(struct f2fs_sb_info *sbi, nid_t ino) 1451e05df3b1SJaegeuk Kim { 1452028a63a6SJan Kara pgoff_t index; 1453e05df3b1SJaegeuk Kim struct pagevec pvec; 1454608514deSJaegeuk Kim struct page *last_page = NULL; 1455028a63a6SJan Kara int nr_pages; 145652681375SJaegeuk Kim 145786679820SMel Gorman pagevec_init(&pvec); 145852681375SJaegeuk Kim index = 0; 145952681375SJaegeuk Kim 1460028a63a6SJan Kara while ((nr_pages = pagevec_lookup_tag(&pvec, NODE_MAPPING(sbi), &index, 146167fd707fSJan Kara PAGECACHE_TAG_DIRTY))) { 1462028a63a6SJan Kara int i; 146352681375SJaegeuk Kim 146452681375SJaegeuk Kim for (i = 0; i < nr_pages; i++) { 146552681375SJaegeuk Kim struct page *page = pvec.pages[i]; 146652681375SJaegeuk Kim 146752681375SJaegeuk Kim if (unlikely(f2fs_cp_error(sbi))) { 1468608514deSJaegeuk Kim f2fs_put_page(last_page, 0); 146952681375SJaegeuk Kim pagevec_release(&pvec); 1470608514deSJaegeuk Kim return ERR_PTR(-EIO); 147152681375SJaegeuk Kim } 147252681375SJaegeuk Kim 147352681375SJaegeuk Kim if (!IS_DNODE(page) || !is_cold_node(page)) 147452681375SJaegeuk Kim continue; 147552681375SJaegeuk Kim if (ino_of_node(page) != ino) 147652681375SJaegeuk Kim continue; 147752681375SJaegeuk Kim 147852681375SJaegeuk Kim lock_page(page); 147952681375SJaegeuk Kim 148052681375SJaegeuk Kim if (unlikely(page->mapping != NODE_MAPPING(sbi))) { 148152681375SJaegeuk Kim continue_unlock: 148252681375SJaegeuk Kim unlock_page(page); 148352681375SJaegeuk Kim continue; 148452681375SJaegeuk Kim } 148552681375SJaegeuk Kim if (ino_of_node(page) != ino) 148652681375SJaegeuk Kim goto continue_unlock; 148752681375SJaegeuk Kim 148852681375SJaegeuk Kim if (!PageDirty(page)) { 148952681375SJaegeuk Kim /* someone wrote it for us */ 149052681375SJaegeuk Kim goto continue_unlock; 149152681375SJaegeuk Kim } 149252681375SJaegeuk Kim 1493608514deSJaegeuk Kim if (last_page) 1494608514deSJaegeuk Kim f2fs_put_page(last_page, 0); 1495608514deSJaegeuk Kim 1496608514deSJaegeuk Kim get_page(page); 1497608514deSJaegeuk Kim last_page = page; 1498608514deSJaegeuk Kim unlock_page(page); 1499608514deSJaegeuk Kim } 1500608514deSJaegeuk Kim pagevec_release(&pvec); 1501608514deSJaegeuk Kim cond_resched(); 1502608514deSJaegeuk Kim } 1503608514deSJaegeuk Kim return last_page; 1504608514deSJaegeuk Kim } 1505608514deSJaegeuk Kim 1506d68f735bSJaegeuk Kim static int __write_node_page(struct page *page, bool atomic, bool *submitted, 1507b0af6d49SChao Yu struct writeback_control *wbc, bool do_balance, 150850fa53ecSChao Yu enum iostat_type io_type, unsigned int *seq_id) 1509faa24895SJaegeuk Kim { 1510faa24895SJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_P_SB(page); 1511faa24895SJaegeuk Kim nid_t nid; 1512faa24895SJaegeuk Kim struct node_info ni; 1513faa24895SJaegeuk Kim struct f2fs_io_info fio = { 1514faa24895SJaegeuk Kim .sbi = sbi, 151539d787beSChao Yu .ino = ino_of_node(page), 1516faa24895SJaegeuk Kim .type = NODE, 1517faa24895SJaegeuk Kim .op = REQ_OP_WRITE, 1518faa24895SJaegeuk Kim .op_flags = wbc_to_write_flags(wbc), 1519faa24895SJaegeuk Kim .page = page, 1520faa24895SJaegeuk Kim .encrypted_page = NULL, 1521d68f735bSJaegeuk Kim .submitted = false, 1522b0af6d49SChao Yu .io_type = io_type, 1523578c6478SYufen Yu .io_wbc = wbc, 1524faa24895SJaegeuk Kim }; 152550fa53ecSChao Yu unsigned int seq; 1526faa24895SJaegeuk Kim 1527faa24895SJaegeuk Kim trace_f2fs_writepage(page, NODE); 1528faa24895SJaegeuk Kim 15296d7c865cSJaegeuk Kim if (unlikely(f2fs_cp_error(sbi))) { 15306d7c865cSJaegeuk Kim if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) { 15316d7c865cSJaegeuk Kim ClearPageUptodate(page); 15326d7c865cSJaegeuk Kim dec_page_count(sbi, F2FS_DIRTY_NODES); 15336d7c865cSJaegeuk Kim unlock_page(page); 15346d7c865cSJaegeuk Kim return 0; 15356d7c865cSJaegeuk Kim } 1536868de613SJaegeuk Kim goto redirty_out; 15376d7c865cSJaegeuk Kim } 1538db198ae0SChao Yu 1539faa24895SJaegeuk Kim if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) 1540faa24895SJaegeuk Kim goto redirty_out; 1541faa24895SJaegeuk Kim 1542100c0655SJaegeuk Kim if (!is_sbi_flag_set(sbi, SBI_CP_DISABLED) && 1543100c0655SJaegeuk Kim wbc->sync_mode == WB_SYNC_NONE && 1544fd8c8cafSChao Yu IS_DNODE(page) && is_cold_node(page)) 1545fd8c8cafSChao Yu goto redirty_out; 1546fd8c8cafSChao Yu 1547faa24895SJaegeuk Kim /* get old block addr of this node page */ 1548faa24895SJaegeuk Kim nid = nid_of_node(page); 1549faa24895SJaegeuk Kim f2fs_bug_on(sbi, page->index != nid); 1550faa24895SJaegeuk Kim 15517735730dSChao Yu if (f2fs_get_node_info(sbi, nid, &ni)) 15527735730dSChao Yu goto redirty_out; 15537735730dSChao Yu 1554faa24895SJaegeuk Kim if (wbc->for_reclaim) { 1555faa24895SJaegeuk Kim if (!down_read_trylock(&sbi->node_write)) 1556faa24895SJaegeuk Kim goto redirty_out; 1557faa24895SJaegeuk Kim } else { 1558faa24895SJaegeuk Kim down_read(&sbi->node_write); 1559faa24895SJaegeuk Kim } 1560faa24895SJaegeuk Kim 1561faa24895SJaegeuk Kim /* This page is already truncated */ 1562faa24895SJaegeuk Kim if (unlikely(ni.blk_addr == NULL_ADDR)) { 1563faa24895SJaegeuk Kim ClearPageUptodate(page); 1564faa24895SJaegeuk Kim dec_page_count(sbi, F2FS_DIRTY_NODES); 1565faa24895SJaegeuk Kim up_read(&sbi->node_write); 1566faa24895SJaegeuk Kim unlock_page(page); 1567faa24895SJaegeuk Kim return 0; 1568faa24895SJaegeuk Kim } 1569faa24895SJaegeuk Kim 1570c9b60788SChao Yu if (__is_valid_data_blkaddr(ni.blk_addr) && 157193770ab7SChao Yu !f2fs_is_valid_blkaddr(sbi, ni.blk_addr, 157293770ab7SChao Yu DATA_GENERIC_ENHANCE)) { 157389d13c38SJaegeuk Kim up_read(&sbi->node_write); 1574c9b60788SChao Yu goto redirty_out; 157589d13c38SJaegeuk Kim } 1576c9b60788SChao Yu 1577e7c75ab0SJaegeuk Kim if (atomic && !test_opt(sbi, NOBARRIER)) 1578e7c75ab0SJaegeuk Kim fio.op_flags |= REQ_PREFLUSH | REQ_FUA; 1579e7c75ab0SJaegeuk Kim 1580dc5a9412SChao Yu /* should add to global list before clearing PAGECACHE status */ 158150fa53ecSChao Yu if (f2fs_in_warm_node_list(sbi, page)) { 158250fa53ecSChao Yu seq = f2fs_add_fsync_node_entry(sbi, page); 158350fa53ecSChao Yu if (seq_id) 158450fa53ecSChao Yu *seq_id = seq; 158550fa53ecSChao Yu } 158650fa53ecSChao Yu 1587dc5a9412SChao Yu set_page_writeback(page); 1588dc5a9412SChao Yu ClearPageError(page); 1589dc5a9412SChao Yu 1590faa24895SJaegeuk Kim fio.old_blkaddr = ni.blk_addr; 15914d57b86dSChao Yu f2fs_do_write_node_page(nid, &fio); 1592faa24895SJaegeuk Kim set_node_addr(sbi, &ni, fio.new_blkaddr, is_fsync_dnode(page)); 1593faa24895SJaegeuk Kim dec_page_count(sbi, F2FS_DIRTY_NODES); 1594faa24895SJaegeuk Kim up_read(&sbi->node_write); 1595faa24895SJaegeuk Kim 1596d68f735bSJaegeuk Kim if (wbc->for_reclaim) { 1597bab475c5SChao Yu f2fs_submit_merged_write_cond(sbi, NULL, page, 0, NODE); 1598d68f735bSJaegeuk Kim submitted = NULL; 1599d68f735bSJaegeuk Kim } 1600faa24895SJaegeuk Kim 1601faa24895SJaegeuk Kim unlock_page(page); 1602faa24895SJaegeuk Kim 1603d68f735bSJaegeuk Kim if (unlikely(f2fs_cp_error(sbi))) { 1604b9109b0eSJaegeuk Kim f2fs_submit_merged_write(sbi, NODE); 1605d68f735bSJaegeuk Kim submitted = NULL; 1606d68f735bSJaegeuk Kim } 1607d68f735bSJaegeuk Kim if (submitted) 1608d68f735bSJaegeuk Kim *submitted = fio.submitted; 1609faa24895SJaegeuk Kim 1610401db79fSYunlong Song if (do_balance) 1611401db79fSYunlong Song f2fs_balance_fs(sbi, false); 1612faa24895SJaegeuk Kim return 0; 1613faa24895SJaegeuk Kim 1614faa24895SJaegeuk Kim redirty_out: 1615faa24895SJaegeuk Kim redirty_page_for_writepage(wbc, page); 1616faa24895SJaegeuk Kim return AOP_WRITEPAGE_ACTIVATE; 1617faa24895SJaegeuk Kim } 1618faa24895SJaegeuk Kim 161948018b4cSChao Yu int f2fs_move_node_page(struct page *node_page, int gc_type) 1620f15194fcSYunlei He { 162148018b4cSChao Yu int err = 0; 162248018b4cSChao Yu 1623f15194fcSYunlei He if (gc_type == FG_GC) { 1624f15194fcSYunlei He struct writeback_control wbc = { 1625f15194fcSYunlei He .sync_mode = WB_SYNC_ALL, 1626f15194fcSYunlei He .nr_to_write = 1, 1627f15194fcSYunlei He .for_reclaim = 0, 1628f15194fcSYunlei He }; 1629f15194fcSYunlei He 1630bae0ee7aSChao Yu f2fs_wait_on_page_writeback(node_page, NODE, true, true); 16318d64d365SChao Yu 16328d64d365SChao Yu set_page_dirty(node_page); 16338d64d365SChao Yu 163448018b4cSChao Yu if (!clear_page_dirty_for_io(node_page)) { 163548018b4cSChao Yu err = -EAGAIN; 1636f15194fcSYunlei He goto out_page; 163748018b4cSChao Yu } 1638f15194fcSYunlei He 1639f15194fcSYunlei He if (__write_node_page(node_page, false, NULL, 164048018b4cSChao Yu &wbc, false, FS_GC_NODE_IO, NULL)) { 164148018b4cSChao Yu err = -EAGAIN; 1642f15194fcSYunlei He unlock_page(node_page); 164348018b4cSChao Yu } 1644f15194fcSYunlei He goto release_page; 1645f15194fcSYunlei He } else { 1646f15194fcSYunlei He /* set page dirty and write it */ 1647f15194fcSYunlei He if (!PageWriteback(node_page)) 1648f15194fcSYunlei He set_page_dirty(node_page); 1649f15194fcSYunlei He } 1650f15194fcSYunlei He out_page: 1651f15194fcSYunlei He unlock_page(node_page); 1652f15194fcSYunlei He release_page: 1653f15194fcSYunlei He f2fs_put_page(node_page, 0); 165448018b4cSChao Yu return err; 1655f15194fcSYunlei He } 1656f15194fcSYunlei He 1657faa24895SJaegeuk Kim static int f2fs_write_node_page(struct page *page, 1658faa24895SJaegeuk Kim struct writeback_control *wbc) 1659faa24895SJaegeuk Kim { 166050fa53ecSChao Yu return __write_node_page(page, false, NULL, wbc, false, 166150fa53ecSChao Yu FS_NODE_IO, NULL); 1662faa24895SJaegeuk Kim } 1663faa24895SJaegeuk Kim 16644d57b86dSChao Yu int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode, 166550fa53ecSChao Yu struct writeback_control *wbc, bool atomic, 166650fa53ecSChao Yu unsigned int *seq_id) 1667608514deSJaegeuk Kim { 1668028a63a6SJan Kara pgoff_t index; 1669608514deSJaegeuk Kim struct pagevec pvec; 1670608514deSJaegeuk Kim int ret = 0; 1671608514deSJaegeuk Kim struct page *last_page = NULL; 1672608514deSJaegeuk Kim bool marked = false; 167326de9b11SJaegeuk Kim nid_t ino = inode->i_ino; 1674028a63a6SJan Kara int nr_pages; 1675bab475c5SChao Yu int nwritten = 0; 1676608514deSJaegeuk Kim 1677608514deSJaegeuk Kim if (atomic) { 1678608514deSJaegeuk Kim last_page = last_fsync_dnode(sbi, ino); 1679608514deSJaegeuk Kim if (IS_ERR_OR_NULL(last_page)) 1680608514deSJaegeuk Kim return PTR_ERR_OR_ZERO(last_page); 1681608514deSJaegeuk Kim } 1682608514deSJaegeuk Kim retry: 168386679820SMel Gorman pagevec_init(&pvec); 1684608514deSJaegeuk Kim index = 0; 1685608514deSJaegeuk Kim 1686028a63a6SJan Kara while ((nr_pages = pagevec_lookup_tag(&pvec, NODE_MAPPING(sbi), &index, 168767fd707fSJan Kara PAGECACHE_TAG_DIRTY))) { 1688028a63a6SJan Kara int i; 1689608514deSJaegeuk Kim 1690608514deSJaegeuk Kim for (i = 0; i < nr_pages; i++) { 1691608514deSJaegeuk Kim struct page *page = pvec.pages[i]; 1692d68f735bSJaegeuk Kim bool submitted = false; 1693608514deSJaegeuk Kim 1694608514deSJaegeuk Kim if (unlikely(f2fs_cp_error(sbi))) { 1695608514deSJaegeuk Kim f2fs_put_page(last_page, 0); 1696608514deSJaegeuk Kim pagevec_release(&pvec); 16979de69279SChao Yu ret = -EIO; 16989de69279SChao Yu goto out; 1699608514deSJaegeuk Kim } 1700608514deSJaegeuk Kim 1701608514deSJaegeuk Kim if (!IS_DNODE(page) || !is_cold_node(page)) 1702608514deSJaegeuk Kim continue; 1703608514deSJaegeuk Kim if (ino_of_node(page) != ino) 1704608514deSJaegeuk Kim continue; 1705608514deSJaegeuk Kim 1706608514deSJaegeuk Kim lock_page(page); 1707608514deSJaegeuk Kim 1708608514deSJaegeuk Kim if (unlikely(page->mapping != NODE_MAPPING(sbi))) { 1709608514deSJaegeuk Kim continue_unlock: 1710608514deSJaegeuk Kim unlock_page(page); 1711608514deSJaegeuk Kim continue; 1712608514deSJaegeuk Kim } 1713608514deSJaegeuk Kim if (ino_of_node(page) != ino) 171452681375SJaegeuk Kim goto continue_unlock; 171552681375SJaegeuk Kim 1716608514deSJaegeuk Kim if (!PageDirty(page) && page != last_page) { 1717608514deSJaegeuk Kim /* someone wrote it for us */ 1718608514deSJaegeuk Kim goto continue_unlock; 1719608514deSJaegeuk Kim } 1720608514deSJaegeuk Kim 1721bae0ee7aSChao Yu f2fs_wait_on_page_writeback(page, NODE, true, true); 1722608514deSJaegeuk Kim 1723d29fd172SJaegeuk Kim set_fsync_mark(page, 0); 1724d29fd172SJaegeuk Kim set_dentry_mark(page, 0); 1725d29fd172SJaegeuk Kim 1726608514deSJaegeuk Kim if (!atomic || page == last_page) { 172752681375SJaegeuk Kim set_fsync_mark(page, 1); 172826de9b11SJaegeuk Kim if (IS_INODE(page)) { 172926de9b11SJaegeuk Kim if (is_inode_flag_set(inode, 173026de9b11SJaegeuk Kim FI_DIRTY_INODE)) 17314d57b86dSChao Yu f2fs_update_inode(inode, page); 173252681375SJaegeuk Kim set_dentry_mark(page, 17334d57b86dSChao Yu f2fs_need_dentry_mark(sbi, ino)); 173426de9b11SJaegeuk Kim } 1735608514deSJaegeuk Kim /* may be written by other thread */ 1736608514deSJaegeuk Kim if (!PageDirty(page)) 1737608514deSJaegeuk Kim set_page_dirty(page); 1738608514deSJaegeuk Kim } 1739608514deSJaegeuk Kim 1740608514deSJaegeuk Kim if (!clear_page_dirty_for_io(page)) 1741608514deSJaegeuk Kim goto continue_unlock; 174252681375SJaegeuk Kim 1743e7c75ab0SJaegeuk Kim ret = __write_node_page(page, atomic && 1744d68f735bSJaegeuk Kim page == last_page, 1745b0af6d49SChao Yu &submitted, wbc, true, 174650fa53ecSChao Yu FS_NODE_IO, seq_id); 1747c267ec15SJaegeuk Kim if (ret) { 174852681375SJaegeuk Kim unlock_page(page); 1749608514deSJaegeuk Kim f2fs_put_page(last_page, 0); 1750608514deSJaegeuk Kim break; 1751d68f735bSJaegeuk Kim } else if (submitted) { 1752bab475c5SChao Yu nwritten++; 1753608514deSJaegeuk Kim } 17543f5f4959SChao Yu 1755608514deSJaegeuk Kim if (page == last_page) { 1756608514deSJaegeuk Kim f2fs_put_page(page, 0); 1757608514deSJaegeuk Kim marked = true; 175852681375SJaegeuk Kim break; 175952681375SJaegeuk Kim } 1760c267ec15SJaegeuk Kim } 176152681375SJaegeuk Kim pagevec_release(&pvec); 176252681375SJaegeuk Kim cond_resched(); 176352681375SJaegeuk Kim 1764608514deSJaegeuk Kim if (ret || marked) 176552681375SJaegeuk Kim break; 176652681375SJaegeuk Kim } 1767608514deSJaegeuk Kim if (!ret && atomic && !marked) { 1768dcbb4c10SJoe Perches f2fs_debug(sbi, "Retry to write fsync mark: ino=%u, idx=%lx", 1769608514deSJaegeuk Kim ino, last_page->index); 1770608514deSJaegeuk Kim lock_page(last_page); 1771bae0ee7aSChao Yu f2fs_wait_on_page_writeback(last_page, NODE, true, true); 1772608514deSJaegeuk Kim set_page_dirty(last_page); 1773608514deSJaegeuk Kim unlock_page(last_page); 1774608514deSJaegeuk Kim goto retry; 1775608514deSJaegeuk Kim } 17769de69279SChao Yu out: 1777bab475c5SChao Yu if (nwritten) 1778bab475c5SChao Yu f2fs_submit_merged_write_cond(sbi, NULL, NULL, ino, NODE); 1779c267ec15SJaegeuk Kim return ret ? -EIO: 0; 178052681375SJaegeuk Kim } 178152681375SJaegeuk Kim 1782052a82d8SChao Yu static int f2fs_match_ino(struct inode *inode, unsigned long ino, void *data) 1783052a82d8SChao Yu { 1784052a82d8SChao Yu struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 1785052a82d8SChao Yu bool clean; 1786052a82d8SChao Yu 1787052a82d8SChao Yu if (inode->i_ino != ino) 1788052a82d8SChao Yu return 0; 1789052a82d8SChao Yu 1790052a82d8SChao Yu if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) 1791052a82d8SChao Yu return 0; 1792052a82d8SChao Yu 1793052a82d8SChao Yu spin_lock(&sbi->inode_lock[DIRTY_META]); 1794052a82d8SChao Yu clean = list_empty(&F2FS_I(inode)->gdirty_list); 1795052a82d8SChao Yu spin_unlock(&sbi->inode_lock[DIRTY_META]); 1796052a82d8SChao Yu 1797052a82d8SChao Yu if (clean) 1798052a82d8SChao Yu return 0; 1799052a82d8SChao Yu 1800052a82d8SChao Yu inode = igrab(inode); 1801052a82d8SChao Yu if (!inode) 1802052a82d8SChao Yu return 0; 1803052a82d8SChao Yu return 1; 1804052a82d8SChao Yu } 1805052a82d8SChao Yu 1806052a82d8SChao Yu static bool flush_dirty_inode(struct page *page) 1807052a82d8SChao Yu { 1808052a82d8SChao Yu struct f2fs_sb_info *sbi = F2FS_P_SB(page); 1809052a82d8SChao Yu struct inode *inode; 1810052a82d8SChao Yu nid_t ino = ino_of_node(page); 1811052a82d8SChao Yu 1812052a82d8SChao Yu inode = find_inode_nowait(sbi->sb, ino, f2fs_match_ino, NULL); 1813052a82d8SChao Yu if (!inode) 1814052a82d8SChao Yu return false; 1815052a82d8SChao Yu 1816052a82d8SChao Yu f2fs_update_inode(inode, page); 1817052a82d8SChao Yu unlock_page(page); 1818052a82d8SChao Yu 1819052a82d8SChao Yu iput(inode); 1820052a82d8SChao Yu return true; 1821052a82d8SChao Yu } 1822052a82d8SChao Yu 182368e79bafSJia Yang void f2fs_flush_inline_data(struct f2fs_sb_info *sbi) 182434c061adSSayali Lokhande { 182534c061adSSayali Lokhande pgoff_t index = 0; 182634c061adSSayali Lokhande struct pagevec pvec; 182734c061adSSayali Lokhande int nr_pages; 182834c061adSSayali Lokhande 182934c061adSSayali Lokhande pagevec_init(&pvec); 183034c061adSSayali Lokhande 183134c061adSSayali Lokhande while ((nr_pages = pagevec_lookup_tag(&pvec, 183234c061adSSayali Lokhande NODE_MAPPING(sbi), &index, PAGECACHE_TAG_DIRTY))) { 183334c061adSSayali Lokhande int i; 183434c061adSSayali Lokhande 183534c061adSSayali Lokhande for (i = 0; i < nr_pages; i++) { 183634c061adSSayali Lokhande struct page *page = pvec.pages[i]; 183734c061adSSayali Lokhande 183834c061adSSayali Lokhande if (!IS_DNODE(page)) 183934c061adSSayali Lokhande continue; 184034c061adSSayali Lokhande 184134c061adSSayali Lokhande lock_page(page); 184234c061adSSayali Lokhande 184334c061adSSayali Lokhande if (unlikely(page->mapping != NODE_MAPPING(sbi))) { 184434c061adSSayali Lokhande continue_unlock: 184534c061adSSayali Lokhande unlock_page(page); 184634c061adSSayali Lokhande continue; 184734c061adSSayali Lokhande } 184834c061adSSayali Lokhande 184934c061adSSayali Lokhande if (!PageDirty(page)) { 185034c061adSSayali Lokhande /* someone wrote it for us */ 185134c061adSSayali Lokhande goto continue_unlock; 185234c061adSSayali Lokhande } 185334c061adSSayali Lokhande 185434c061adSSayali Lokhande /* flush inline_data, if it's async context. */ 185534c061adSSayali Lokhande if (is_inline_node(page)) { 185634c061adSSayali Lokhande clear_inline_node(page); 185734c061adSSayali Lokhande unlock_page(page); 185834c061adSSayali Lokhande flush_inline_data(sbi, ino_of_node(page)); 185934c061adSSayali Lokhande continue; 186034c061adSSayali Lokhande } 186134c061adSSayali Lokhande unlock_page(page); 186234c061adSSayali Lokhande } 186334c061adSSayali Lokhande pagevec_release(&pvec); 186434c061adSSayali Lokhande cond_resched(); 186534c061adSSayali Lokhande } 186634c061adSSayali Lokhande } 186734c061adSSayali Lokhande 18684d57b86dSChao Yu int f2fs_sync_node_pages(struct f2fs_sb_info *sbi, 18694d57b86dSChao Yu struct writeback_control *wbc, 1870b0af6d49SChao Yu bool do_balance, enum iostat_type io_type) 187152681375SJaegeuk Kim { 1872028a63a6SJan Kara pgoff_t index; 187352681375SJaegeuk Kim struct pagevec pvec; 187452681375SJaegeuk Kim int step = 0; 187512bb0a8fSJaegeuk Kim int nwritten = 0; 18763f5f4959SChao Yu int ret = 0; 1877c29fd0c0SChao Yu int nr_pages, done = 0; 1878e05df3b1SJaegeuk Kim 187986679820SMel Gorman pagevec_init(&pvec); 1880e05df3b1SJaegeuk Kim 1881e05df3b1SJaegeuk Kim next_step: 1882e05df3b1SJaegeuk Kim index = 0; 1883e05df3b1SJaegeuk Kim 1884c29fd0c0SChao Yu while (!done && (nr_pages = pagevec_lookup_tag(&pvec, 1885c29fd0c0SChao Yu NODE_MAPPING(sbi), &index, PAGECACHE_TAG_DIRTY))) { 1886028a63a6SJan Kara int i; 1887e05df3b1SJaegeuk Kim 1888e05df3b1SJaegeuk Kim for (i = 0; i < nr_pages; i++) { 1889e05df3b1SJaegeuk Kim struct page *page = pvec.pages[i]; 1890d68f735bSJaegeuk Kim bool submitted = false; 1891052a82d8SChao Yu bool may_dirty = true; 1892e05df3b1SJaegeuk Kim 1893c29fd0c0SChao Yu /* give a priority to WB_SYNC threads */ 1894c29fd0c0SChao Yu if (atomic_read(&sbi->wb_sync_req[NODE]) && 1895c29fd0c0SChao Yu wbc->sync_mode == WB_SYNC_NONE) { 1896c29fd0c0SChao Yu done = 1; 1897c29fd0c0SChao Yu break; 1898c29fd0c0SChao Yu } 1899c29fd0c0SChao Yu 1900e05df3b1SJaegeuk Kim /* 1901e05df3b1SJaegeuk Kim * flushing sequence with step: 1902e05df3b1SJaegeuk Kim * 0. indirect nodes 1903e05df3b1SJaegeuk Kim * 1. dentry dnodes 1904e05df3b1SJaegeuk Kim * 2. file dnodes 1905e05df3b1SJaegeuk Kim */ 1906e05df3b1SJaegeuk Kim if (step == 0 && IS_DNODE(page)) 1907e05df3b1SJaegeuk Kim continue; 1908e05df3b1SJaegeuk Kim if (step == 1 && (!IS_DNODE(page) || 1909e05df3b1SJaegeuk Kim is_cold_node(page))) 1910e05df3b1SJaegeuk Kim continue; 1911e05df3b1SJaegeuk Kim if (step == 2 && (!IS_DNODE(page) || 1912e05df3b1SJaegeuk Kim !is_cold_node(page))) 1913e05df3b1SJaegeuk Kim continue; 19149a4cbc9eSChao Yu lock_node: 19154b270a8cSChao Yu if (wbc->sync_mode == WB_SYNC_ALL) 19164b270a8cSChao Yu lock_page(page); 19174b270a8cSChao Yu else if (!trylock_page(page)) 1918e05df3b1SJaegeuk Kim continue; 1919e05df3b1SJaegeuk Kim 19204ef51a8fSJaegeuk Kim if (unlikely(page->mapping != NODE_MAPPING(sbi))) { 1921e05df3b1SJaegeuk Kim continue_unlock: 1922e05df3b1SJaegeuk Kim unlock_page(page); 1923e05df3b1SJaegeuk Kim continue; 1924e05df3b1SJaegeuk Kim } 1925e05df3b1SJaegeuk Kim 1926e05df3b1SJaegeuk Kim if (!PageDirty(page)) { 1927e05df3b1SJaegeuk Kim /* someone wrote it for us */ 1928e05df3b1SJaegeuk Kim goto continue_unlock; 1929e05df3b1SJaegeuk Kim } 1930e05df3b1SJaegeuk Kim 1931b0f3b87fSJaegeuk Kim /* flush inline_data/inode, if it's async context. */ 1932b0f3b87fSJaegeuk Kim if (!do_balance) 1933b0f3b87fSJaegeuk Kim goto write_node; 1934b0f3b87fSJaegeuk Kim 1935b0f3b87fSJaegeuk Kim /* flush inline_data */ 1936b0f3b87fSJaegeuk Kim if (is_inline_node(page)) { 19372049d4fcSJaegeuk Kim clear_inline_node(page); 19382049d4fcSJaegeuk Kim unlock_page(page); 19392049d4fcSJaegeuk Kim flush_inline_data(sbi, ino_of_node(page)); 19409a4cbc9eSChao Yu goto lock_node; 19412049d4fcSJaegeuk Kim } 19422049d4fcSJaegeuk Kim 1943052a82d8SChao Yu /* flush dirty inode */ 1944052a82d8SChao Yu if (IS_INODE(page) && may_dirty) { 1945052a82d8SChao Yu may_dirty = false; 1946052a82d8SChao Yu if (flush_dirty_inode(page)) 1947052a82d8SChao Yu goto lock_node; 1948052a82d8SChao Yu } 1949b0f3b87fSJaegeuk Kim write_node: 1950bae0ee7aSChao Yu f2fs_wait_on_page_writeback(page, NODE, true, true); 1951fa3d2bdfSJaegeuk Kim 1952e05df3b1SJaegeuk Kim if (!clear_page_dirty_for_io(page)) 1953e05df3b1SJaegeuk Kim goto continue_unlock; 1954e05df3b1SJaegeuk Kim 1955e05df3b1SJaegeuk Kim set_fsync_mark(page, 0); 1956e05df3b1SJaegeuk Kim set_dentry_mark(page, 0); 195752746519SJaegeuk Kim 1958401db79fSYunlong Song ret = __write_node_page(page, false, &submitted, 195950fa53ecSChao Yu wbc, do_balance, io_type, NULL); 1960d68f735bSJaegeuk Kim if (ret) 196152746519SJaegeuk Kim unlock_page(page); 1962d68f735bSJaegeuk Kim else if (submitted) 19633f5f4959SChao Yu nwritten++; 1964e05df3b1SJaegeuk Kim 1965e05df3b1SJaegeuk Kim if (--wbc->nr_to_write == 0) 1966e05df3b1SJaegeuk Kim break; 1967e05df3b1SJaegeuk Kim } 1968e05df3b1SJaegeuk Kim pagevec_release(&pvec); 1969e05df3b1SJaegeuk Kim cond_resched(); 1970e05df3b1SJaegeuk Kim 1971e05df3b1SJaegeuk Kim if (wbc->nr_to_write == 0) { 1972e05df3b1SJaegeuk Kim step = 2; 1973e05df3b1SJaegeuk Kim break; 1974e05df3b1SJaegeuk Kim } 1975e05df3b1SJaegeuk Kim } 1976e05df3b1SJaegeuk Kim 1977e05df3b1SJaegeuk Kim if (step < 2) { 1978100c0655SJaegeuk Kim if (!is_sbi_flag_set(sbi, SBI_CP_DISABLED) && 1979100c0655SJaegeuk Kim wbc->sync_mode == WB_SYNC_NONE && step == 1) 1980fd8c8cafSChao Yu goto out; 1981e05df3b1SJaegeuk Kim step++; 1982e05df3b1SJaegeuk Kim goto next_step; 1983e05df3b1SJaegeuk Kim } 1984fd8c8cafSChao Yu out: 19853f5f4959SChao Yu if (nwritten) 1986b9109b0eSJaegeuk Kim f2fs_submit_merged_write(sbi, NODE); 1987db198ae0SChao Yu 1988db198ae0SChao Yu if (unlikely(f2fs_cp_error(sbi))) 1989db198ae0SChao Yu return -EIO; 19903f5f4959SChao Yu return ret; 1991e05df3b1SJaegeuk Kim } 1992e05df3b1SJaegeuk Kim 199350fa53ecSChao Yu int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, 199450fa53ecSChao Yu unsigned int seq_id) 1995cfe58f9dSJaegeuk Kim { 199650fa53ecSChao Yu struct fsync_node_entry *fn; 199750fa53ecSChao Yu struct page *page; 199850fa53ecSChao Yu struct list_head *head = &sbi->fsync_node_list; 199950fa53ecSChao Yu unsigned long flags; 200050fa53ecSChao Yu unsigned int cur_seq_id = 0; 2001280db3c8SMiklos Szeredi int ret2, ret = 0; 2002cfe58f9dSJaegeuk Kim 200350fa53ecSChao Yu while (seq_id && cur_seq_id < seq_id) { 200450fa53ecSChao Yu spin_lock_irqsave(&sbi->fsync_node_lock, flags); 200550fa53ecSChao Yu if (list_empty(head)) { 200650fa53ecSChao Yu spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); 200750fa53ecSChao Yu break; 200850fa53ecSChao Yu } 200950fa53ecSChao Yu fn = list_first_entry(head, struct fsync_node_entry, list); 201050fa53ecSChao Yu if (fn->seq_id > seq_id) { 201150fa53ecSChao Yu spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); 201250fa53ecSChao Yu break; 201350fa53ecSChao Yu } 201450fa53ecSChao Yu cur_seq_id = fn->seq_id; 201550fa53ecSChao Yu page = fn->page; 201650fa53ecSChao Yu get_page(page); 201750fa53ecSChao Yu spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); 20184ef51a8fSJaegeuk Kim 2019bae0ee7aSChao Yu f2fs_wait_on_page_writeback(page, NODE, true, false); 2020cfe58f9dSJaegeuk Kim if (TestClearPageError(page)) 2021cfe58f9dSJaegeuk Kim ret = -EIO; 202250fa53ecSChao Yu 202350fa53ecSChao Yu put_page(page); 202450fa53ecSChao Yu 202550fa53ecSChao Yu if (ret) 202650fa53ecSChao Yu break; 2027cfe58f9dSJaegeuk Kim } 2028cfe58f9dSJaegeuk Kim 2029280db3c8SMiklos Szeredi ret2 = filemap_check_errors(NODE_MAPPING(sbi)); 2030cfe58f9dSJaegeuk Kim if (!ret) 2031cfe58f9dSJaegeuk Kim ret = ret2; 203250fa53ecSChao Yu 2033cfe58f9dSJaegeuk Kim return ret; 2034cfe58f9dSJaegeuk Kim } 2035cfe58f9dSJaegeuk Kim 2036e05df3b1SJaegeuk Kim static int f2fs_write_node_pages(struct address_space *mapping, 2037e05df3b1SJaegeuk Kim struct writeback_control *wbc) 2038e05df3b1SJaegeuk Kim { 20394081363fSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_M_SB(mapping); 20409dfa1bafSJaegeuk Kim struct blk_plug plug; 204150c8cdb3SJaegeuk Kim long diff; 2042e05df3b1SJaegeuk Kim 20430771fcc7SChao Yu if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) 20440771fcc7SChao Yu goto skip_write; 20450771fcc7SChao Yu 20464660f9c0SJaegeuk Kim /* balancing f2fs's metadata in background */ 20477bcd0cfaSChao Yu f2fs_balance_fs_bg(sbi, true); 2048e05df3b1SJaegeuk Kim 2049a7fdffbdSJaegeuk Kim /* collect a number of dirty node pages and write together */ 2050812a9597SJaegeuk Kim if (wbc->sync_mode != WB_SYNC_ALL && 2051812a9597SJaegeuk Kim get_pages(sbi, F2FS_DIRTY_NODES) < 2052812a9597SJaegeuk Kim nr_pages_to_skip(sbi, NODE)) 2053d3baf95dSJaegeuk Kim goto skip_write; 2054a7fdffbdSJaegeuk Kim 2055c29fd0c0SChao Yu if (wbc->sync_mode == WB_SYNC_ALL) 2056c29fd0c0SChao Yu atomic_inc(&sbi->wb_sync_req[NODE]); 2057c29fd0c0SChao Yu else if (atomic_read(&sbi->wb_sync_req[NODE])) 2058c29fd0c0SChao Yu goto skip_write; 2059c29fd0c0SChao Yu 2060d31c7c3fSYunlei He trace_f2fs_writepages(mapping->host, wbc, NODE); 2061d31c7c3fSYunlei He 206250c8cdb3SJaegeuk Kim diff = nr_pages_to_write(sbi, NODE, wbc); 20639dfa1bafSJaegeuk Kim blk_start_plug(&plug); 20644d57b86dSChao Yu f2fs_sync_node_pages(sbi, wbc, true, FS_NODE_IO); 20659dfa1bafSJaegeuk Kim blk_finish_plug(&plug); 206650c8cdb3SJaegeuk Kim wbc->nr_to_write = max((long)0, wbc->nr_to_write - diff); 2067c29fd0c0SChao Yu 2068c29fd0c0SChao Yu if (wbc->sync_mode == WB_SYNC_ALL) 2069c29fd0c0SChao Yu atomic_dec(&sbi->wb_sync_req[NODE]); 2070e05df3b1SJaegeuk Kim return 0; 2071d3baf95dSJaegeuk Kim 2072d3baf95dSJaegeuk Kim skip_write: 2073d3baf95dSJaegeuk Kim wbc->pages_skipped += get_pages(sbi, F2FS_DIRTY_NODES); 2074d31c7c3fSYunlei He trace_f2fs_writepages(mapping->host, wbc, NODE); 2075d3baf95dSJaegeuk Kim return 0; 2076e05df3b1SJaegeuk Kim } 2077e05df3b1SJaegeuk Kim 2078e05df3b1SJaegeuk Kim static int f2fs_set_node_page_dirty(struct page *page) 2079e05df3b1SJaegeuk Kim { 208026c6b887SJaegeuk Kim trace_f2fs_set_page_dirty(page, NODE); 208126c6b887SJaegeuk Kim 2082237c0790SJaegeuk Kim if (!PageUptodate(page)) 2083e05df3b1SJaegeuk Kim SetPageUptodate(page); 208454c55c4eSWeichao Guo #ifdef CONFIG_F2FS_CHECK_FS 208554c55c4eSWeichao Guo if (IS_INODE(page)) 208654c55c4eSWeichao Guo f2fs_inode_chksum_set(F2FS_P_SB(page), page); 208754c55c4eSWeichao Guo #endif 2088e05df3b1SJaegeuk Kim if (!PageDirty(page)) { 2089b87078adSJaegeuk Kim __set_page_dirty_nobuffers(page); 20904081363fSJaegeuk Kim inc_page_count(F2FS_P_SB(page), F2FS_DIRTY_NODES); 2091240a5915SChao Yu f2fs_set_page_private(page, 0); 20929e4ded3fSJaegeuk Kim f2fs_trace_pid(page); 2093e05df3b1SJaegeuk Kim return 1; 2094e05df3b1SJaegeuk Kim } 2095e05df3b1SJaegeuk Kim return 0; 2096e05df3b1SJaegeuk Kim } 2097e05df3b1SJaegeuk Kim 20980a8165d7SJaegeuk Kim /* 2099e05df3b1SJaegeuk Kim * Structure of the f2fs node operations 2100e05df3b1SJaegeuk Kim */ 2101e05df3b1SJaegeuk Kim const struct address_space_operations f2fs_node_aops = { 2102e05df3b1SJaegeuk Kim .writepage = f2fs_write_node_page, 2103e05df3b1SJaegeuk Kim .writepages = f2fs_write_node_pages, 2104e05df3b1SJaegeuk Kim .set_page_dirty = f2fs_set_node_page_dirty, 2105487261f3SChao Yu .invalidatepage = f2fs_invalidate_page, 2106487261f3SChao Yu .releasepage = f2fs_release_page, 21075b7a487cSWeichao Guo #ifdef CONFIG_MIGRATION 21085b7a487cSWeichao Guo .migratepage = f2fs_migrate_page, 21095b7a487cSWeichao Guo #endif 2110e05df3b1SJaegeuk Kim }; 2111e05df3b1SJaegeuk Kim 21128a7ed66aSJaegeuk Kim static struct free_nid *__lookup_free_nid_list(struct f2fs_nm_info *nm_i, 21138a7ed66aSJaegeuk Kim nid_t n) 2114e05df3b1SJaegeuk Kim { 21158a7ed66aSJaegeuk Kim return radix_tree_lookup(&nm_i->free_nid_root, n); 21163aa770a9SNamjae Jeon } 2117e05df3b1SJaegeuk Kim 21189a4ffdf5SChao Yu static int __insert_free_nid(struct f2fs_sb_info *sbi, 2119b815bdc7SLiu Song struct free_nid *i) 2120e05df3b1SJaegeuk Kim { 2121b8559dc2SChao Yu struct f2fs_nm_info *nm_i = NM_I(sbi); 2122b8559dc2SChao Yu 2123eb0aa4b8SJaegeuk Kim int err = radix_tree_insert(&nm_i->free_nid_root, i->nid, i); 2124eb0aa4b8SJaegeuk Kim if (err) 2125eb0aa4b8SJaegeuk Kim return err; 2126eb0aa4b8SJaegeuk Kim 2127b815bdc7SLiu Song nm_i->nid_cnt[FREE_NID]++; 21289a4ffdf5SChao Yu list_add_tail(&i->list, &nm_i->free_nid_list); 2129eb0aa4b8SJaegeuk Kim return 0; 2130b8559dc2SChao Yu } 2131b8559dc2SChao Yu 21329a4ffdf5SChao Yu static void __remove_free_nid(struct f2fs_sb_info *sbi, 2133a0761f63SFan Li struct free_nid *i, enum nid_state state) 2134b8559dc2SChao Yu { 2135b8559dc2SChao Yu struct f2fs_nm_info *nm_i = NM_I(sbi); 2136b8559dc2SChao Yu 21379a4ffdf5SChao Yu f2fs_bug_on(sbi, state != i->state); 21389a4ffdf5SChao Yu nm_i->nid_cnt[state]--; 21399a4ffdf5SChao Yu if (state == FREE_NID) 2140e05df3b1SJaegeuk Kim list_del(&i->list); 21418a7ed66aSJaegeuk Kim radix_tree_delete(&nm_i->free_nid_root, i->nid); 2142e05df3b1SJaegeuk Kim } 2143e05df3b1SJaegeuk Kim 2144a0761f63SFan Li static void __move_free_nid(struct f2fs_sb_info *sbi, struct free_nid *i, 2145a0761f63SFan Li enum nid_state org_state, enum nid_state dst_state) 2146a0761f63SFan Li { 2147a0761f63SFan Li struct f2fs_nm_info *nm_i = NM_I(sbi); 2148a0761f63SFan Li 2149a0761f63SFan Li f2fs_bug_on(sbi, org_state != i->state); 2150a0761f63SFan Li i->state = dst_state; 2151a0761f63SFan Li nm_i->nid_cnt[org_state]--; 2152a0761f63SFan Li nm_i->nid_cnt[dst_state]++; 2153a0761f63SFan Li 2154a0761f63SFan Li switch (dst_state) { 2155a0761f63SFan Li case PREALLOC_NID: 2156a0761f63SFan Li list_del(&i->list); 2157a0761f63SFan Li break; 2158a0761f63SFan Li case FREE_NID: 2159a0761f63SFan Li list_add_tail(&i->list, &nm_i->free_nid_list); 2160a0761f63SFan Li break; 2161a0761f63SFan Li default: 2162a0761f63SFan Li BUG_ON(1); 2163a0761f63SFan Li } 2164a0761f63SFan Li } 2165a0761f63SFan Li 21665921aaa1SLiFan static void update_free_nid_bitmap(struct f2fs_sb_info *sbi, nid_t nid, 21675921aaa1SLiFan bool set, bool build) 21685921aaa1SLiFan { 21695921aaa1SLiFan struct f2fs_nm_info *nm_i = NM_I(sbi); 21705921aaa1SLiFan unsigned int nat_ofs = NAT_BLOCK_OFFSET(nid); 21715921aaa1SLiFan unsigned int nid_ofs = nid - START_NID(nid); 21725921aaa1SLiFan 21735921aaa1SLiFan if (!test_bit_le(nat_ofs, nm_i->nat_block_bitmap)) 21745921aaa1SLiFan return; 21755921aaa1SLiFan 21765921aaa1SLiFan if (set) { 21775921aaa1SLiFan if (test_bit_le(nid_ofs, nm_i->free_nid_bitmap[nat_ofs])) 21785921aaa1SLiFan return; 21795921aaa1SLiFan __set_bit_le(nid_ofs, nm_i->free_nid_bitmap[nat_ofs]); 21805921aaa1SLiFan nm_i->free_nid_count[nat_ofs]++; 21815921aaa1SLiFan } else { 21825921aaa1SLiFan if (!test_bit_le(nid_ofs, nm_i->free_nid_bitmap[nat_ofs])) 21835921aaa1SLiFan return; 21845921aaa1SLiFan __clear_bit_le(nid_ofs, nm_i->free_nid_bitmap[nat_ofs]); 21855921aaa1SLiFan if (!build) 21865921aaa1SLiFan nm_i->free_nid_count[nat_ofs]--; 21875921aaa1SLiFan } 21885921aaa1SLiFan } 21895921aaa1SLiFan 21904ac91242SChao Yu /* return if the nid is recognized as free */ 21915921aaa1SLiFan static bool add_free_nid(struct f2fs_sb_info *sbi, 21925921aaa1SLiFan nid_t nid, bool build, bool update) 2193e05df3b1SJaegeuk Kim { 21946fb03f3aSJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 219530a61ddfSChao Yu struct free_nid *i, *e; 219659bbd474SJaegeuk Kim struct nat_entry *ne; 219730a61ddfSChao Yu int err = -EINVAL; 219830a61ddfSChao Yu bool ret = false; 21999198acebSJaegeuk Kim 22009198acebSJaegeuk Kim /* 0 nid should not be used */ 2201cfb271d4SChao Yu if (unlikely(nid == 0)) 22024ac91242SChao Yu return false; 220359bbd474SJaegeuk Kim 2204626bcf2bSChao Yu if (unlikely(f2fs_check_nid_range(sbi, nid))) 2205626bcf2bSChao Yu return false; 2206626bcf2bSChao Yu 22077bd59381SGu Zheng i = f2fs_kmem_cache_alloc(free_nid_slab, GFP_NOFS); 2208e05df3b1SJaegeuk Kim i->nid = nid; 22099a4ffdf5SChao Yu i->state = FREE_NID; 2210e05df3b1SJaegeuk Kim 22115921aaa1SLiFan radix_tree_preload(GFP_NOFS | __GFP_NOFAIL); 2212769ec6e5SJaegeuk Kim 2213b8559dc2SChao Yu spin_lock(&nm_i->nid_list_lock); 221430a61ddfSChao Yu 221530a61ddfSChao Yu if (build) { 221630a61ddfSChao Yu /* 221730a61ddfSChao Yu * Thread A Thread B 221830a61ddfSChao Yu * - f2fs_create 221930a61ddfSChao Yu * - f2fs_new_inode 22204d57b86dSChao Yu * - f2fs_alloc_nid 22219a4ffdf5SChao Yu * - __insert_nid_to_list(PREALLOC_NID) 222230a61ddfSChao Yu * - f2fs_balance_fs_bg 22234d57b86dSChao Yu * - f2fs_build_free_nids 22244d57b86dSChao Yu * - __f2fs_build_free_nids 222530a61ddfSChao Yu * - scan_nat_page 222630a61ddfSChao Yu * - add_free_nid 222730a61ddfSChao Yu * - __lookup_nat_cache 222830a61ddfSChao Yu * - f2fs_add_link 22294d57b86dSChao Yu * - f2fs_init_inode_metadata 22304d57b86dSChao Yu * - f2fs_new_inode_page 22314d57b86dSChao Yu * - f2fs_new_node_page 223230a61ddfSChao Yu * - set_node_addr 22334d57b86dSChao Yu * - f2fs_alloc_nid_done 22349a4ffdf5SChao Yu * - __remove_nid_from_list(PREALLOC_NID) 22359a4ffdf5SChao Yu * - __insert_nid_to_list(FREE_NID) 223630a61ddfSChao Yu */ 223730a61ddfSChao Yu ne = __lookup_nat_cache(nm_i, nid); 223830a61ddfSChao Yu if (ne && (!get_nat_flag(ne, IS_CHECKPOINTED) || 223930a61ddfSChao Yu nat_get_blkaddr(ne) != NULL_ADDR)) 224030a61ddfSChao Yu goto err_out; 224130a61ddfSChao Yu 224230a61ddfSChao Yu e = __lookup_free_nid_list(nm_i, nid); 224330a61ddfSChao Yu if (e) { 22449a4ffdf5SChao Yu if (e->state == FREE_NID) 224530a61ddfSChao Yu ret = true; 224630a61ddfSChao Yu goto err_out; 224730a61ddfSChao Yu } 224830a61ddfSChao Yu } 224930a61ddfSChao Yu ret = true; 2250b815bdc7SLiu Song err = __insert_free_nid(sbi, i); 225130a61ddfSChao Yu err_out: 22525921aaa1SLiFan if (update) { 22535921aaa1SLiFan update_free_nid_bitmap(sbi, nid, ret, build); 22545921aaa1SLiFan if (!build) 22555921aaa1SLiFan nm_i->available_nids++; 22565921aaa1SLiFan } 2257b8559dc2SChao Yu spin_unlock(&nm_i->nid_list_lock); 2258769ec6e5SJaegeuk Kim radix_tree_preload_end(); 22595921aaa1SLiFan 226030a61ddfSChao Yu if (err) 2261e05df3b1SJaegeuk Kim kmem_cache_free(free_nid_slab, i); 226230a61ddfSChao Yu return ret; 2263e05df3b1SJaegeuk Kim } 2264e05df3b1SJaegeuk Kim 2265b8559dc2SChao Yu static void remove_free_nid(struct f2fs_sb_info *sbi, nid_t nid) 2266e05df3b1SJaegeuk Kim { 2267b8559dc2SChao Yu struct f2fs_nm_info *nm_i = NM_I(sbi); 2268e05df3b1SJaegeuk Kim struct free_nid *i; 2269cf0ee0f0SChao Yu bool need_free = false; 2270cf0ee0f0SChao Yu 2271b8559dc2SChao Yu spin_lock(&nm_i->nid_list_lock); 22728a7ed66aSJaegeuk Kim i = __lookup_free_nid_list(nm_i, nid); 22739a4ffdf5SChao Yu if (i && i->state == FREE_NID) { 2274a0761f63SFan Li __remove_free_nid(sbi, i, FREE_NID); 2275cf0ee0f0SChao Yu need_free = true; 2276e05df3b1SJaegeuk Kim } 2277b8559dc2SChao Yu spin_unlock(&nm_i->nid_list_lock); 2278cf0ee0f0SChao Yu 2279cf0ee0f0SChao Yu if (need_free) 2280cf0ee0f0SChao Yu kmem_cache_free(free_nid_slab, i); 2281e05df3b1SJaegeuk Kim } 2282e05df3b1SJaegeuk Kim 2283e2374015SChao Yu static int scan_nat_page(struct f2fs_sb_info *sbi, 2284e05df3b1SJaegeuk Kim struct page *nat_page, nid_t start_nid) 2285e05df3b1SJaegeuk Kim { 22866fb03f3aSJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 2287e05df3b1SJaegeuk Kim struct f2fs_nat_block *nat_blk = page_address(nat_page); 2288e05df3b1SJaegeuk Kim block_t blk_addr; 22894ac91242SChao Yu unsigned int nat_ofs = NAT_BLOCK_OFFSET(start_nid); 2290e05df3b1SJaegeuk Kim int i; 2291e05df3b1SJaegeuk Kim 229223380b85SJaegeuk Kim __set_bit_le(nat_ofs, nm_i->nat_block_bitmap); 22934ac91242SChao Yu 2294e05df3b1SJaegeuk Kim i = start_nid % NAT_ENTRY_PER_BLOCK; 2295e05df3b1SJaegeuk Kim 2296e05df3b1SJaegeuk Kim for (; i < NAT_ENTRY_PER_BLOCK; i++, start_nid++) { 2297cfb271d4SChao Yu if (unlikely(start_nid >= nm_i->max_nid)) 229804431c44SJaegeuk Kim break; 229923d38844SHaicheng Li 2300e05df3b1SJaegeuk Kim blk_addr = le32_to_cpu(nat_blk->entries[i].block_addr); 2301e2374015SChao Yu 2302e2374015SChao Yu if (blk_addr == NEW_ADDR) 2303e2374015SChao Yu return -EINVAL; 2304e2374015SChao Yu 23055921aaa1SLiFan if (blk_addr == NULL_ADDR) { 23065921aaa1SLiFan add_free_nid(sbi, start_nid, true, true); 23075921aaa1SLiFan } else { 2308346fe752SChao Yu spin_lock(&NM_I(sbi)->nid_list_lock); 23095921aaa1SLiFan update_free_nid_bitmap(sbi, start_nid, false, true); 2310346fe752SChao Yu spin_unlock(&NM_I(sbi)->nid_list_lock); 2311e05df3b1SJaegeuk Kim } 2312e05df3b1SJaegeuk Kim } 2313e2374015SChao Yu 2314e2374015SChao Yu return 0; 23155921aaa1SLiFan } 2316e05df3b1SJaegeuk Kim 23172fbaa25fSChao Yu static void scan_curseg_cache(struct f2fs_sb_info *sbi) 23184ac91242SChao Yu { 23194ac91242SChao Yu struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA); 23204ac91242SChao Yu struct f2fs_journal *journal = curseg->journal; 23212fbaa25fSChao Yu int i; 23224ac91242SChao Yu 23234ac91242SChao Yu down_read(&curseg->journal_rwsem); 23244ac91242SChao Yu for (i = 0; i < nats_in_cursum(journal); i++) { 23254ac91242SChao Yu block_t addr; 23264ac91242SChao Yu nid_t nid; 23274ac91242SChao Yu 23284ac91242SChao Yu addr = le32_to_cpu(nat_in_journal(journal, i).block_addr); 23294ac91242SChao Yu nid = le32_to_cpu(nid_in_journal(journal, i)); 23304ac91242SChao Yu if (addr == NULL_ADDR) 23315921aaa1SLiFan add_free_nid(sbi, nid, true, false); 23324ac91242SChao Yu else 23334ac91242SChao Yu remove_free_nid(sbi, nid); 23344ac91242SChao Yu } 23354ac91242SChao Yu up_read(&curseg->journal_rwsem); 23362fbaa25fSChao Yu } 23372fbaa25fSChao Yu 2338e05df3b1SJaegeuk Kim static void scan_free_nid_bits(struct f2fs_sb_info *sbi) 23394ac91242SChao Yu { 23404ac91242SChao Yu struct f2fs_nm_info *nm_i = NM_I(sbi); 23414ac91242SChao Yu unsigned int i, idx; 234297456574SFan Li nid_t nid; 23434ac91242SChao Yu 23444ac91242SChao Yu down_read(&nm_i->nat_tree_lock); 23454ac91242SChao Yu 23464ac91242SChao Yu for (i = 0; i < nm_i->nat_blocks; i++) { 23474ac91242SChao Yu if (!test_bit_le(i, nm_i->nat_block_bitmap)) 23484ac91242SChao Yu continue; 23494ac91242SChao Yu if (!nm_i->free_nid_count[i]) 23504ac91242SChao Yu continue; 23514ac91242SChao Yu for (idx = 0; idx < NAT_ENTRY_PER_BLOCK; idx++) { 235297456574SFan Li idx = find_next_bit_le(nm_i->free_nid_bitmap[i], 235397456574SFan Li NAT_ENTRY_PER_BLOCK, idx); 235497456574SFan Li if (idx >= NAT_ENTRY_PER_BLOCK) 235597456574SFan Li break; 23564ac91242SChao Yu 23574ac91242SChao Yu nid = i * NAT_ENTRY_PER_BLOCK + idx; 23585921aaa1SLiFan add_free_nid(sbi, nid, true, false); 23594ac91242SChao Yu 23609a4ffdf5SChao Yu if (nm_i->nid_cnt[FREE_NID] >= MAX_FREE_NIDS) 23614ac91242SChao Yu goto out; 23624ac91242SChao Yu } 23634ac91242SChao Yu } 23644ac91242SChao Yu out: 23652fbaa25fSChao Yu scan_curseg_cache(sbi); 23664ac91242SChao Yu 23674ac91242SChao Yu up_read(&nm_i->nat_tree_lock); 23684ac91242SChao Yu } 23694ac91242SChao Yu 2370e2374015SChao Yu static int __f2fs_build_free_nids(struct f2fs_sb_info *sbi, 23714d57b86dSChao Yu bool sync, bool mount) 2372e05df3b1SJaegeuk Kim { 2373e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 2374e2374015SChao Yu int i = 0, ret; 237555008d84SJaegeuk Kim nid_t nid = nm_i->next_scan_nid; 2376e05df3b1SJaegeuk Kim 2377e9cdd307SYunlei He if (unlikely(nid >= nm_i->max_nid)) 2378e9cdd307SYunlei He nid = 0; 2379e9cdd307SYunlei He 2380e2cab031SSahitya Tummala if (unlikely(nid % NAT_ENTRY_PER_BLOCK)) 2381e2cab031SSahitya Tummala nid = NAT_BLOCK_OFFSET(nid) * NAT_ENTRY_PER_BLOCK; 2382e2cab031SSahitya Tummala 238355008d84SJaegeuk Kim /* Enough entries */ 23849a4ffdf5SChao Yu if (nm_i->nid_cnt[FREE_NID] >= NAT_ENTRY_PER_BLOCK) 2385e2374015SChao Yu return 0; 2386e05df3b1SJaegeuk Kim 23874d57b86dSChao Yu if (!sync && !f2fs_available_free_memory(sbi, FREE_NIDS)) 2388e2374015SChao Yu return 0; 2389e05df3b1SJaegeuk Kim 23904ac91242SChao Yu if (!mount) { 23914ac91242SChao Yu /* try to find free nids in free_nid_bitmap */ 23924ac91242SChao Yu scan_free_nid_bits(sbi); 23934ac91242SChao Yu 239474986213SFan Li if (nm_i->nid_cnt[FREE_NID] >= NAT_ENTRY_PER_BLOCK) 2395e2374015SChao Yu return 0; 239622ad0b6aSJaegeuk Kim } 239722ad0b6aSJaegeuk Kim 239855008d84SJaegeuk Kim /* readahead nat pages to be scanned */ 23994d57b86dSChao Yu f2fs_ra_meta_pages(sbi, NAT_BLOCK_OFFSET(nid), FREE_NID_PAGES, 240026879fb1SChao Yu META_NAT, true); 2401e05df3b1SJaegeuk Kim 2402b873b798SJaegeuk Kim down_read(&nm_i->nat_tree_lock); 2403a5131193SJaegeuk Kim 2404e05df3b1SJaegeuk Kim while (1) { 240566e83361SYunlei He if (!test_bit_le(NAT_BLOCK_OFFSET(nid), 240666e83361SYunlei He nm_i->nat_block_bitmap)) { 2407e05df3b1SJaegeuk Kim struct page *page = get_current_nat_page(sbi, nid); 2408e05df3b1SJaegeuk Kim 2409edc55aafSJaegeuk Kim if (IS_ERR(page)) { 2410edc55aafSJaegeuk Kim ret = PTR_ERR(page); 2411edc55aafSJaegeuk Kim } else { 2412e2374015SChao Yu ret = scan_nat_page(sbi, page, nid); 2413e05df3b1SJaegeuk Kim f2fs_put_page(page, 1); 2414edc55aafSJaegeuk Kim } 2415e2374015SChao Yu 2416e2374015SChao Yu if (ret) { 2417e2374015SChao Yu up_read(&nm_i->nat_tree_lock); 2418dcbb4c10SJoe Perches f2fs_err(sbi, "NAT is corrupt, run fsck to fix it"); 2419edc55aafSJaegeuk Kim return ret; 2420e2374015SChao Yu } 242166e83361SYunlei He } 2422e05df3b1SJaegeuk Kim 2423e05df3b1SJaegeuk Kim nid += (NAT_ENTRY_PER_BLOCK - (nid % NAT_ENTRY_PER_BLOCK)); 2424cfb271d4SChao Yu if (unlikely(nid >= nm_i->max_nid)) 2425e05df3b1SJaegeuk Kim nid = 0; 242655008d84SJaegeuk Kim 2427a6d494b6SChao Yu if (++i >= FREE_NID_PAGES) 2428e05df3b1SJaegeuk Kim break; 2429e05df3b1SJaegeuk Kim } 2430e05df3b1SJaegeuk Kim 243155008d84SJaegeuk Kim /* go to the next free nat pages to find free nids abundantly */ 243255008d84SJaegeuk Kim nm_i->next_scan_nid = nid; 2433e05df3b1SJaegeuk Kim 2434e05df3b1SJaegeuk Kim /* find free nids from current sum_pages */ 24352fbaa25fSChao Yu scan_curseg_cache(sbi); 2436dfc08a12SChao Yu 2437b873b798SJaegeuk Kim up_read(&nm_i->nat_tree_lock); 24382db2388fSChao Yu 24394d57b86dSChao Yu f2fs_ra_meta_pages(sbi, NAT_BLOCK_OFFSET(nm_i->next_scan_nid), 2440ea1a29a0SChao Yu nm_i->ra_nid_pages, META_NAT, false); 2441e2374015SChao Yu 2442e2374015SChao Yu return 0; 2443e05df3b1SJaegeuk Kim } 2444e05df3b1SJaegeuk Kim 2445e2374015SChao Yu int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount) 24462411cf5bSChao Yu { 2447e2374015SChao Yu int ret; 2448e2374015SChao Yu 24492411cf5bSChao Yu mutex_lock(&NM_I(sbi)->build_lock); 2450e2374015SChao Yu ret = __f2fs_build_free_nids(sbi, sync, mount); 24512411cf5bSChao Yu mutex_unlock(&NM_I(sbi)->build_lock); 2452e2374015SChao Yu 2453e2374015SChao Yu return ret; 24542411cf5bSChao Yu } 24552411cf5bSChao Yu 2456e05df3b1SJaegeuk Kim /* 2457e05df3b1SJaegeuk Kim * If this function returns success, caller can obtain a new nid 2458e05df3b1SJaegeuk Kim * from second parameter of this function. 2459e05df3b1SJaegeuk Kim * The returned nid could be used ino as well as nid when inode is created. 2460e05df3b1SJaegeuk Kim */ 24614d57b86dSChao Yu bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid) 2462e05df3b1SJaegeuk Kim { 2463e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 2464e05df3b1SJaegeuk Kim struct free_nid *i = NULL; 2465e05df3b1SJaegeuk Kim retry: 246655523519SChao Yu if (time_to_inject(sbi, FAULT_ALLOC_NID)) { 2467c45d6002SChao Yu f2fs_show_injection_info(sbi, FAULT_ALLOC_NID); 2468cb78942bSJaegeuk Kim return false; 246955523519SChao Yu } 24707fa750a1SArnd Bergmann 2471b8559dc2SChao Yu spin_lock(&nm_i->nid_list_lock); 2472e05df3b1SJaegeuk Kim 247304d47e67SChao Yu if (unlikely(nm_i->available_nids == 0)) { 247404d47e67SChao Yu spin_unlock(&nm_i->nid_list_lock); 247504d47e67SChao Yu return false; 247604d47e67SChao Yu } 2477e05df3b1SJaegeuk Kim 24784d57b86dSChao Yu /* We should not use stale free nids created by f2fs_build_free_nids */ 24794d57b86dSChao Yu if (nm_i->nid_cnt[FREE_NID] && !on_f2fs_build_free_nids(nm_i)) { 24809a4ffdf5SChao Yu f2fs_bug_on(sbi, list_empty(&nm_i->free_nid_list)); 24819a4ffdf5SChao Yu i = list_first_entry(&nm_i->free_nid_list, 2482b8559dc2SChao Yu struct free_nid, list); 2483e05df3b1SJaegeuk Kim *nid = i->nid; 2484b8559dc2SChao Yu 2485a0761f63SFan Li __move_free_nid(sbi, i, FREE_NID, PREALLOC_NID); 248604d47e67SChao Yu nm_i->available_nids--; 24874ac91242SChao Yu 2488346fe752SChao Yu update_free_nid_bitmap(sbi, *nid, false, false); 24894ac91242SChao Yu 2490b8559dc2SChao Yu spin_unlock(&nm_i->nid_list_lock); 2491e05df3b1SJaegeuk Kim return true; 2492e05df3b1SJaegeuk Kim } 2493b8559dc2SChao Yu spin_unlock(&nm_i->nid_list_lock); 249455008d84SJaegeuk Kim 249555008d84SJaegeuk Kim /* Let's scan nat pages and its caches to get free nids */ 2496f84262b0SJaegeuk Kim if (!f2fs_build_free_nids(sbi, true, false)) 249755008d84SJaegeuk Kim goto retry; 2498f84262b0SJaegeuk Kim return false; 249955008d84SJaegeuk Kim } 2500e05df3b1SJaegeuk Kim 25010a8165d7SJaegeuk Kim /* 25024d57b86dSChao Yu * f2fs_alloc_nid() should be called prior to this function. 2503e05df3b1SJaegeuk Kim */ 25044d57b86dSChao Yu void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid) 2505e05df3b1SJaegeuk Kim { 2506e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 2507e05df3b1SJaegeuk Kim struct free_nid *i; 2508e05df3b1SJaegeuk Kim 2509b8559dc2SChao Yu spin_lock(&nm_i->nid_list_lock); 25108a7ed66aSJaegeuk Kim i = __lookup_free_nid_list(nm_i, nid); 2511b8559dc2SChao Yu f2fs_bug_on(sbi, !i); 2512a0761f63SFan Li __remove_free_nid(sbi, i, PREALLOC_NID); 2513b8559dc2SChao Yu spin_unlock(&nm_i->nid_list_lock); 2514cf0ee0f0SChao Yu 2515cf0ee0f0SChao Yu kmem_cache_free(free_nid_slab, i); 2516e05df3b1SJaegeuk Kim } 2517e05df3b1SJaegeuk Kim 25180a8165d7SJaegeuk Kim /* 25194d57b86dSChao Yu * f2fs_alloc_nid() should be called prior to this function. 2520e05df3b1SJaegeuk Kim */ 25214d57b86dSChao Yu void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid) 2522e05df3b1SJaegeuk Kim { 252349952fa1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 252449952fa1SJaegeuk Kim struct free_nid *i; 2525cf0ee0f0SChao Yu bool need_free = false; 252649952fa1SJaegeuk Kim 252765985d93SJaegeuk Kim if (!nid) 252865985d93SJaegeuk Kim return; 252965985d93SJaegeuk Kim 2530b8559dc2SChao Yu spin_lock(&nm_i->nid_list_lock); 25318a7ed66aSJaegeuk Kim i = __lookup_free_nid_list(nm_i, nid); 2532b8559dc2SChao Yu f2fs_bug_on(sbi, !i); 2533b8559dc2SChao Yu 25344d57b86dSChao Yu if (!f2fs_available_free_memory(sbi, FREE_NIDS)) { 2535a0761f63SFan Li __remove_free_nid(sbi, i, PREALLOC_NID); 2536cf0ee0f0SChao Yu need_free = true; 253795630cbaSHaicheng Li } else { 2538a0761f63SFan Li __move_free_nid(sbi, i, PREALLOC_NID, FREE_NID); 253995630cbaSHaicheng Li } 254004d47e67SChao Yu 254104d47e67SChao Yu nm_i->available_nids++; 254204d47e67SChao Yu 2543346fe752SChao Yu update_free_nid_bitmap(sbi, nid, true, false); 25444ac91242SChao Yu 2545b8559dc2SChao Yu spin_unlock(&nm_i->nid_list_lock); 2546cf0ee0f0SChao Yu 2547cf0ee0f0SChao Yu if (need_free) 2548cf0ee0f0SChao Yu kmem_cache_free(free_nid_slab, i); 2549e05df3b1SJaegeuk Kim } 2550e05df3b1SJaegeuk Kim 25514d57b86dSChao Yu int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink) 255231696580SChao Yu { 255331696580SChao Yu struct f2fs_nm_info *nm_i = NM_I(sbi); 255431696580SChao Yu int nr = nr_shrink; 255531696580SChao Yu 25569a4ffdf5SChao Yu if (nm_i->nid_cnt[FREE_NID] <= MAX_FREE_NIDS) 2557ad4edb83SJaegeuk Kim return 0; 2558ad4edb83SJaegeuk Kim 255931696580SChao Yu if (!mutex_trylock(&nm_i->build_lock)) 256031696580SChao Yu return 0; 256131696580SChao Yu 2562042be373SChao Yu while (nr_shrink && nm_i->nid_cnt[FREE_NID] > MAX_FREE_NIDS) { 2563042be373SChao Yu struct free_nid *i, *next; 2564042be373SChao Yu unsigned int batch = SHRINK_NID_BATCH_SIZE; 2565042be373SChao Yu 2566b8559dc2SChao Yu spin_lock(&nm_i->nid_list_lock); 25679a4ffdf5SChao Yu list_for_each_entry_safe(i, next, &nm_i->free_nid_list, list) { 2568042be373SChao Yu if (!nr_shrink || !batch || 25699a4ffdf5SChao Yu nm_i->nid_cnt[FREE_NID] <= MAX_FREE_NIDS) 257031696580SChao Yu break; 2571a0761f63SFan Li __remove_free_nid(sbi, i, FREE_NID); 257231696580SChao Yu kmem_cache_free(free_nid_slab, i); 257331696580SChao Yu nr_shrink--; 2574042be373SChao Yu batch--; 257531696580SChao Yu } 2576b8559dc2SChao Yu spin_unlock(&nm_i->nid_list_lock); 2577042be373SChao Yu } 2578042be373SChao Yu 257931696580SChao Yu mutex_unlock(&nm_i->build_lock); 258031696580SChao Yu 258131696580SChao Yu return nr - nr_shrink; 258231696580SChao Yu } 258331696580SChao Yu 25849627a7b3SChao Yu int f2fs_recover_inline_xattr(struct inode *inode, struct page *page) 258528cdce04SChao Yu { 258628cdce04SChao Yu void *src_addr, *dst_addr; 258728cdce04SChao Yu size_t inline_size; 258828cdce04SChao Yu struct page *ipage; 258928cdce04SChao Yu struct f2fs_inode *ri; 259028cdce04SChao Yu 25914d57b86dSChao Yu ipage = f2fs_get_node_page(F2FS_I_SB(inode), inode->i_ino); 25929627a7b3SChao Yu if (IS_ERR(ipage)) 25939627a7b3SChao Yu return PTR_ERR(ipage); 259428cdce04SChao Yu 2595e3b4d43fSJaegeuk Kim ri = F2FS_INODE(page); 25961eca05aaSYunlei He if (ri->i_inline & F2FS_INLINE_XATTR) { 259796dd0251SChao Yu if (!f2fs_has_inline_xattr(inode)) { 25981eca05aaSYunlei He set_inode_flag(inode, FI_INLINE_XATTR); 259996dd0251SChao Yu stat_inc_inline_xattr(inode); 260096dd0251SChao Yu } 26011eca05aaSYunlei He } else { 260296dd0251SChao Yu if (f2fs_has_inline_xattr(inode)) { 260396dd0251SChao Yu stat_dec_inline_xattr(inode); 260491942321SJaegeuk Kim clear_inode_flag(inode, FI_INLINE_XATTR); 260596dd0251SChao Yu } 2606e3b4d43fSJaegeuk Kim goto update_inode; 2607e3b4d43fSJaegeuk Kim } 2608e3b4d43fSJaegeuk Kim 26096afc662eSChao Yu dst_addr = inline_xattr_addr(inode, ipage); 26106afc662eSChao Yu src_addr = inline_xattr_addr(inode, page); 261128cdce04SChao Yu inline_size = inline_xattr_size(inode); 261228cdce04SChao Yu 2613bae0ee7aSChao Yu f2fs_wait_on_page_writeback(ipage, NODE, true, true); 261428cdce04SChao Yu memcpy(dst_addr, src_addr, inline_size); 2615e3b4d43fSJaegeuk Kim update_inode: 26164d57b86dSChao Yu f2fs_update_inode(inode, ipage); 261728cdce04SChao Yu f2fs_put_page(ipage, 1); 26189627a7b3SChao Yu return 0; 261928cdce04SChao Yu } 262028cdce04SChao Yu 26214d57b86dSChao Yu int f2fs_recover_xattr_data(struct inode *inode, struct page *page) 2622abb2366cSJaegeuk Kim { 26234081363fSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 2624abb2366cSJaegeuk Kim nid_t prev_xnid = F2FS_I(inode)->i_xattr_nid; 262587905682SYunlei He nid_t new_xnid; 262687905682SYunlei He struct dnode_of_data dn; 2627abb2366cSJaegeuk Kim struct node_info ni; 2628d260081cSChao Yu struct page *xpage; 26297735730dSChao Yu int err; 2630abb2366cSJaegeuk Kim 2631abb2366cSJaegeuk Kim if (!prev_xnid) 2632abb2366cSJaegeuk Kim goto recover_xnid; 2633abb2366cSJaegeuk Kim 2634d260081cSChao Yu /* 1: invalidate the previous xattr nid */ 26357735730dSChao Yu err = f2fs_get_node_info(sbi, prev_xnid, &ni); 26367735730dSChao Yu if (err) 26377735730dSChao Yu return err; 26387735730dSChao Yu 26394d57b86dSChao Yu f2fs_invalidate_blocks(sbi, ni.blk_addr); 2640000519f2SChao Yu dec_valid_node_count(sbi, inode, false); 2641479f40c4SJaegeuk Kim set_node_addr(sbi, &ni, NULL_ADDR, false); 2642abb2366cSJaegeuk Kim 2643abb2366cSJaegeuk Kim recover_xnid: 2644d260081cSChao Yu /* 2: update xattr nid in inode */ 26454d57b86dSChao Yu if (!f2fs_alloc_nid(sbi, &new_xnid)) 264687905682SYunlei He return -ENOSPC; 264787905682SYunlei He 264887905682SYunlei He set_new_dnode(&dn, inode, NULL, NULL, new_xnid); 26494d57b86dSChao Yu xpage = f2fs_new_node_page(&dn, XATTR_NODE_OFFSET); 265087905682SYunlei He if (IS_ERR(xpage)) { 26514d57b86dSChao Yu f2fs_alloc_nid_failed(sbi, new_xnid); 265287905682SYunlei He return PTR_ERR(xpage); 265387905682SYunlei He } 265487905682SYunlei He 26554d57b86dSChao Yu f2fs_alloc_nid_done(sbi, new_xnid); 26564d57b86dSChao Yu f2fs_update_inode_page(inode); 2657abb2366cSJaegeuk Kim 2658d260081cSChao Yu /* 3: update and set xattr node page dirty */ 265987905682SYunlei He memcpy(F2FS_NODE(xpage), F2FS_NODE(page), VALID_XATTR_BLOCK_SIZE); 2660d260081cSChao Yu 2661d260081cSChao Yu set_page_dirty(xpage); 2662d260081cSChao Yu f2fs_put_page(xpage, 1); 2663abb2366cSJaegeuk Kim 2664d260081cSChao Yu return 0; 2665abb2366cSJaegeuk Kim } 2666abb2366cSJaegeuk Kim 26674d57b86dSChao Yu int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page) 2668e05df3b1SJaegeuk Kim { 266958bfaf44SJaegeuk Kim struct f2fs_inode *src, *dst; 2670e05df3b1SJaegeuk Kim nid_t ino = ino_of_node(page); 2671e05df3b1SJaegeuk Kim struct node_info old_ni, new_ni; 2672e05df3b1SJaegeuk Kim struct page *ipage; 26737735730dSChao Yu int err; 2674e05df3b1SJaegeuk Kim 26757735730dSChao Yu err = f2fs_get_node_info(sbi, ino, &old_ni); 26767735730dSChao Yu if (err) 26777735730dSChao Yu return err; 2678e8271fa3SJaegeuk Kim 2679e8271fa3SJaegeuk Kim if (unlikely(old_ni.blk_addr != NULL_ADDR)) 2680e8271fa3SJaegeuk Kim return -EINVAL; 2681e8ea9b3dSJaegeuk Kim retry: 2682300e129cSJaegeuk Kim ipage = f2fs_grab_cache_page(NODE_MAPPING(sbi), ino, false); 2683e8ea9b3dSJaegeuk Kim if (!ipage) { 26845df7731fSChao Yu congestion_wait(BLK_RW_ASYNC, DEFAULT_IO_TIMEOUT); 2685e8ea9b3dSJaegeuk Kim goto retry; 2686e8ea9b3dSJaegeuk Kim } 2687e05df3b1SJaegeuk Kim 2688e05df3b1SJaegeuk Kim /* Should not use this inode from free nid list */ 2689b8559dc2SChao Yu remove_free_nid(sbi, ino); 2690e05df3b1SJaegeuk Kim 2691237c0790SJaegeuk Kim if (!PageUptodate(ipage)) 2692e05df3b1SJaegeuk Kim SetPageUptodate(ipage); 2693e05df3b1SJaegeuk Kim fill_node_footer(ipage, ino, ino, 0, true); 2694ef2a0071SChao Yu set_cold_node(ipage, false); 2695e05df3b1SJaegeuk Kim 269658bfaf44SJaegeuk Kim src = F2FS_INODE(page); 269758bfaf44SJaegeuk Kim dst = F2FS_INODE(ipage); 2698e05df3b1SJaegeuk Kim 2699*36218b81SZheng Yongjun memcpy(dst, src, offsetof(struct f2fs_inode, i_ext)); 270058bfaf44SJaegeuk Kim dst->i_size = 0; 270158bfaf44SJaegeuk Kim dst->i_blocks = cpu_to_le64(1); 270258bfaf44SJaegeuk Kim dst->i_links = cpu_to_le32(1); 270358bfaf44SJaegeuk Kim dst->i_xattr_nid = 0; 27047a2af766SChao Yu dst->i_inline = src->i_inline & (F2FS_INLINE_XATTR | F2FS_EXTRA_ATTR); 27055c57132eSChao Yu if (dst->i_inline & F2FS_EXTRA_ATTR) { 27067a2af766SChao Yu dst->i_extra_isize = src->i_extra_isize; 27076afc662eSChao Yu 27087beb01f7SChao Yu if (f2fs_sb_has_flexible_inline_xattr(sbi) && 27096afc662eSChao Yu F2FS_FITS_IN_INODE(src, le16_to_cpu(src->i_extra_isize), 27106afc662eSChao Yu i_inline_xattr_size)) 27116afc662eSChao Yu dst->i_inline_xattr_size = src->i_inline_xattr_size; 27126afc662eSChao Yu 27137beb01f7SChao Yu if (f2fs_sb_has_project_quota(sbi) && 27145c57132eSChao Yu F2FS_FITS_IN_INODE(src, le16_to_cpu(src->i_extra_isize), 27155c57132eSChao Yu i_projid)) 27165c57132eSChao Yu dst->i_projid = src->i_projid; 27175cd1f387SChao Yu 27187beb01f7SChao Yu if (f2fs_sb_has_inode_crtime(sbi) && 27195cd1f387SChao Yu F2FS_FITS_IN_INODE(src, le16_to_cpu(src->i_extra_isize), 27205cd1f387SChao Yu i_crtime_nsec)) { 27215cd1f387SChao Yu dst->i_crtime = src->i_crtime; 27225cd1f387SChao Yu dst->i_crtime_nsec = src->i_crtime_nsec; 27235cd1f387SChao Yu } 27245c57132eSChao Yu } 2725e05df3b1SJaegeuk Kim 2726e05df3b1SJaegeuk Kim new_ni = old_ni; 2727e05df3b1SJaegeuk Kim new_ni.ino = ino; 2728e05df3b1SJaegeuk Kim 27290abd675eSChao Yu if (unlikely(inc_valid_node_count(sbi, NULL, true))) 273065e5cd0aSJaegeuk Kim WARN_ON(1); 2731479f40c4SJaegeuk Kim set_node_addr(sbi, &new_ni, NEW_ADDR, false); 2732e05df3b1SJaegeuk Kim inc_valid_inode_count(sbi); 2733617deb8cSJaegeuk Kim set_page_dirty(ipage); 2734e05df3b1SJaegeuk Kim f2fs_put_page(ipage, 1); 2735e05df3b1SJaegeuk Kim return 0; 2736e05df3b1SJaegeuk Kim } 2737e05df3b1SJaegeuk Kim 27387735730dSChao Yu int f2fs_restore_node_summary(struct f2fs_sb_info *sbi, 2739e05df3b1SJaegeuk Kim unsigned int segno, struct f2fs_summary_block *sum) 2740e05df3b1SJaegeuk Kim { 2741e05df3b1SJaegeuk Kim struct f2fs_node *rn; 2742e05df3b1SJaegeuk Kim struct f2fs_summary *sum_entry; 2743e05df3b1SJaegeuk Kim block_t addr; 27449ecf4b80SChao Yu int i, idx, last_offset, nrpages; 2745e05df3b1SJaegeuk Kim 2746e05df3b1SJaegeuk Kim /* scan the node segment */ 2747e05df3b1SJaegeuk Kim last_offset = sbi->blocks_per_seg; 2748e05df3b1SJaegeuk Kim addr = START_BLOCK(sbi, segno); 2749e05df3b1SJaegeuk Kim sum_entry = &sum->entries[0]; 2750e05df3b1SJaegeuk Kim 27519ecf4b80SChao Yu for (i = 0; i < last_offset; i += nrpages, addr += nrpages) { 2752664ba972SJaegeuk Kim nrpages = min(last_offset - i, BIO_MAX_PAGES); 2753393ff91fSJaegeuk Kim 27549af0ff1cSChao Yu /* readahead node pages */ 27554d57b86dSChao Yu f2fs_ra_meta_pages(sbi, addr, nrpages, META_POR, true); 27569af0ff1cSChao Yu 27579ecf4b80SChao Yu for (idx = addr; idx < addr + nrpages; idx++) { 27584d57b86dSChao Yu struct page *page = f2fs_get_tmp_page(sbi, idx); 2759393ff91fSJaegeuk Kim 27607735730dSChao Yu if (IS_ERR(page)) 27617735730dSChao Yu return PTR_ERR(page); 27627735730dSChao Yu 27639ecf4b80SChao Yu rn = F2FS_NODE(page); 2764393ff91fSJaegeuk Kim sum_entry->nid = rn->footer.nid; 2765393ff91fSJaegeuk Kim sum_entry->version = 0; 2766393ff91fSJaegeuk Kim sum_entry->ofs_in_node = 0; 27679af0ff1cSChao Yu sum_entry++; 27689ecf4b80SChao Yu f2fs_put_page(page, 1); 27699af0ff1cSChao Yu } 2770bac4eef6SChao Yu 27719ecf4b80SChao Yu invalidate_mapping_pages(META_MAPPING(sbi), addr, 2772bac4eef6SChao Yu addr + nrpages); 27739af0ff1cSChao Yu } 27747735730dSChao Yu return 0; 2775e05df3b1SJaegeuk Kim } 2776e05df3b1SJaegeuk Kim 2777aec71382SChao Yu static void remove_nats_in_journal(struct f2fs_sb_info *sbi) 2778e05df3b1SJaegeuk Kim { 2779e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 2780e05df3b1SJaegeuk Kim struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA); 2781b7ad7512SChao Yu struct f2fs_journal *journal = curseg->journal; 2782e05df3b1SJaegeuk Kim int i; 2783e05df3b1SJaegeuk Kim 2784b7ad7512SChao Yu down_write(&curseg->journal_rwsem); 2785dfc08a12SChao Yu for (i = 0; i < nats_in_cursum(journal); i++) { 2786e05df3b1SJaegeuk Kim struct nat_entry *ne; 2787e05df3b1SJaegeuk Kim struct f2fs_nat_entry raw_ne; 2788dfc08a12SChao Yu nid_t nid = le32_to_cpu(nid_in_journal(journal, i)); 2789e05df3b1SJaegeuk Kim 2790dfc08a12SChao Yu raw_ne = nat_in_journal(journal, i); 27919be32d72SJaegeuk Kim 2792e05df3b1SJaegeuk Kim ne = __lookup_nat_cache(nm_i, nid); 2793e05df3b1SJaegeuk Kim if (!ne) { 279412f9ef37SYunlei He ne = __alloc_nat_entry(nid, true); 279512f9ef37SYunlei He __init_nat_entry(nm_i, ne, &raw_ne, true); 27969be32d72SJaegeuk Kim } 279704d47e67SChao Yu 279804d47e67SChao Yu /* 279904d47e67SChao Yu * if a free nat in journal has not been used after last 280004d47e67SChao Yu * checkpoint, we should remove it from available nids, 280104d47e67SChao Yu * since later we will add it again. 280204d47e67SChao Yu */ 280304d47e67SChao Yu if (!get_nat_flag(ne, IS_DIRTY) && 280404d47e67SChao Yu le32_to_cpu(raw_ne.block_addr) == NULL_ADDR) { 280504d47e67SChao Yu spin_lock(&nm_i->nid_list_lock); 280604d47e67SChao Yu nm_i->available_nids--; 280704d47e67SChao Yu spin_unlock(&nm_i->nid_list_lock); 280804d47e67SChao Yu } 280904d47e67SChao Yu 2810e05df3b1SJaegeuk Kim __set_nat_cache_dirty(nm_i, ne); 2811e05df3b1SJaegeuk Kim } 2812dfc08a12SChao Yu update_nats_in_cursum(journal, -i); 2813b7ad7512SChao Yu up_write(&curseg->journal_rwsem); 2814e05df3b1SJaegeuk Kim } 2815e05df3b1SJaegeuk Kim 2816309cc2b6SJaegeuk Kim static void __adjust_nat_entry_set(struct nat_entry_set *nes, 2817309cc2b6SJaegeuk Kim struct list_head *head, int max) 2818e05df3b1SJaegeuk Kim { 2819309cc2b6SJaegeuk Kim struct nat_entry_set *cur; 2820e05df3b1SJaegeuk Kim 2821309cc2b6SJaegeuk Kim if (nes->entry_cnt >= max) 2822309cc2b6SJaegeuk Kim goto add_out; 2823e05df3b1SJaegeuk Kim 2824309cc2b6SJaegeuk Kim list_for_each_entry(cur, head, set_list) { 2825309cc2b6SJaegeuk Kim if (cur->entry_cnt >= nes->entry_cnt) { 2826309cc2b6SJaegeuk Kim list_add(&nes->set_list, cur->set_list.prev); 2827309cc2b6SJaegeuk Kim return; 2828309cc2b6SJaegeuk Kim } 2829309cc2b6SJaegeuk Kim } 2830309cc2b6SJaegeuk Kim add_out: 2831309cc2b6SJaegeuk Kim list_add_tail(&nes->set_list, head); 2832aec71382SChao Yu } 2833aec71382SChao Yu 28349f7e4a2cSJaegeuk Kim static void __update_nat_bits(struct f2fs_sb_info *sbi, nid_t start_nid, 283522ad0b6aSJaegeuk Kim struct page *page) 283622ad0b6aSJaegeuk Kim { 283722ad0b6aSJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 283822ad0b6aSJaegeuk Kim unsigned int nat_index = start_nid / NAT_ENTRY_PER_BLOCK; 283922ad0b6aSJaegeuk Kim struct f2fs_nat_block *nat_blk = page_address(page); 284022ad0b6aSJaegeuk Kim int valid = 0; 284137a0ab2aSFan Li int i = 0; 284222ad0b6aSJaegeuk Kim 284322ad0b6aSJaegeuk Kim if (!enabled_nat_bits(sbi, NULL)) 284422ad0b6aSJaegeuk Kim return; 284522ad0b6aSJaegeuk Kim 284637a0ab2aSFan Li if (nat_index == 0) { 284737a0ab2aSFan Li valid = 1; 284837a0ab2aSFan Li i = 1; 284937a0ab2aSFan Li } 285037a0ab2aSFan Li for (; i < NAT_ENTRY_PER_BLOCK; i++) { 285136af5f40SChao Yu if (le32_to_cpu(nat_blk->entries[i].block_addr) != NULL_ADDR) 285222ad0b6aSJaegeuk Kim valid++; 285322ad0b6aSJaegeuk Kim } 285422ad0b6aSJaegeuk Kim if (valid == 0) { 285523380b85SJaegeuk Kim __set_bit_le(nat_index, nm_i->empty_nat_bits); 285623380b85SJaegeuk Kim __clear_bit_le(nat_index, nm_i->full_nat_bits); 285722ad0b6aSJaegeuk Kim return; 285822ad0b6aSJaegeuk Kim } 285922ad0b6aSJaegeuk Kim 286023380b85SJaegeuk Kim __clear_bit_le(nat_index, nm_i->empty_nat_bits); 286122ad0b6aSJaegeuk Kim if (valid == NAT_ENTRY_PER_BLOCK) 286223380b85SJaegeuk Kim __set_bit_le(nat_index, nm_i->full_nat_bits); 286322ad0b6aSJaegeuk Kim else 286423380b85SJaegeuk Kim __clear_bit_le(nat_index, nm_i->full_nat_bits); 286522ad0b6aSJaegeuk Kim } 286622ad0b6aSJaegeuk Kim 2867edc55aafSJaegeuk Kim static int __flush_nat_entry_set(struct f2fs_sb_info *sbi, 286822ad0b6aSJaegeuk Kim struct nat_entry_set *set, struct cp_control *cpc) 2869309cc2b6SJaegeuk Kim { 2870309cc2b6SJaegeuk Kim struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA); 2871b7ad7512SChao Yu struct f2fs_journal *journal = curseg->journal; 2872309cc2b6SJaegeuk Kim nid_t start_nid = set->set * NAT_ENTRY_PER_BLOCK; 2873309cc2b6SJaegeuk Kim bool to_journal = true; 2874309cc2b6SJaegeuk Kim struct f2fs_nat_block *nat_blk; 2875309cc2b6SJaegeuk Kim struct nat_entry *ne, *cur; 2876309cc2b6SJaegeuk Kim struct page *page = NULL; 2877aec71382SChao Yu 2878aec71382SChao Yu /* 2879aec71382SChao Yu * there are two steps to flush nat entries: 2880aec71382SChao Yu * #1, flush nat entries to journal in current hot data summary block. 2881aec71382SChao Yu * #2, flush nat entries to nat page. 2882aec71382SChao Yu */ 288322ad0b6aSJaegeuk Kim if (enabled_nat_bits(sbi, cpc) || 288422ad0b6aSJaegeuk Kim !__has_cursum_space(journal, set->entry_cnt, NAT_JOURNAL)) 2885aec71382SChao Yu to_journal = false; 2886aec71382SChao Yu 2887aec71382SChao Yu if (to_journal) { 2888b7ad7512SChao Yu down_write(&curseg->journal_rwsem); 2889aec71382SChao Yu } else { 2890e05df3b1SJaegeuk Kim page = get_next_nat_page(sbi, start_nid); 2891edc55aafSJaegeuk Kim if (IS_ERR(page)) 2892edc55aafSJaegeuk Kim return PTR_ERR(page); 2893edc55aafSJaegeuk Kim 2894e05df3b1SJaegeuk Kim nat_blk = page_address(page); 28959850cf4aSJaegeuk Kim f2fs_bug_on(sbi, !nat_blk); 2896e05df3b1SJaegeuk Kim } 2897e05df3b1SJaegeuk Kim 2898aec71382SChao Yu /* flush dirty nats in nat entry set */ 2899309cc2b6SJaegeuk Kim list_for_each_entry_safe(ne, cur, &set->entry_list, list) { 2900aec71382SChao Yu struct f2fs_nat_entry *raw_ne; 2901aec71382SChao Yu nid_t nid = nat_get_nid(ne); 2902aec71382SChao Yu int offset; 2903aec71382SChao Yu 2904febeca6dSChao Yu f2fs_bug_on(sbi, nat_get_blkaddr(ne) == NEW_ADDR); 2905309cc2b6SJaegeuk Kim 2906aec71382SChao Yu if (to_journal) { 29074d57b86dSChao Yu offset = f2fs_lookup_journal_in_cursum(journal, 2908aec71382SChao Yu NAT_JOURNAL, nid, 1); 29099850cf4aSJaegeuk Kim f2fs_bug_on(sbi, offset < 0); 2910dfc08a12SChao Yu raw_ne = &nat_in_journal(journal, offset); 2911dfc08a12SChao Yu nid_in_journal(journal, offset) = cpu_to_le32(nid); 2912aec71382SChao Yu } else { 2913aec71382SChao Yu raw_ne = &nat_blk->entries[nid - start_nid]; 2914aec71382SChao Yu } 2915aec71382SChao Yu raw_nat_from_node_info(raw_ne, &ne->ni); 291688bd02c9SJaegeuk Kim nat_reset_flag(ne); 29170b28b71eSKinglong Mee __clear_nat_cache_dirty(NM_I(sbi), set, ne); 291804d47e67SChao Yu if (nat_get_blkaddr(ne) == NULL_ADDR) { 29195921aaa1SLiFan add_free_nid(sbi, nid, false, true); 29204ac91242SChao Yu } else { 29214ac91242SChao Yu spin_lock(&NM_I(sbi)->nid_list_lock); 2922346fe752SChao Yu update_free_nid_bitmap(sbi, nid, false, false); 292304d47e67SChao Yu spin_unlock(&NM_I(sbi)->nid_list_lock); 292404d47e67SChao Yu } 2925e05df3b1SJaegeuk Kim } 2926aec71382SChao Yu 292722ad0b6aSJaegeuk Kim if (to_journal) { 2928b7ad7512SChao Yu up_write(&curseg->journal_rwsem); 292922ad0b6aSJaegeuk Kim } else { 293022ad0b6aSJaegeuk Kim __update_nat_bits(sbi, start_nid, page); 2931e05df3b1SJaegeuk Kim f2fs_put_page(page, 1); 293222ad0b6aSJaegeuk Kim } 2933aec71382SChao Yu 293459c9081bSYunlei He /* Allow dirty nats by node block allocation in write_begin */ 293559c9081bSYunlei He if (!set->entry_cnt) { 2936309cc2b6SJaegeuk Kim radix_tree_delete(&NM_I(sbi)->nat_set_root, set->set); 2937309cc2b6SJaegeuk Kim kmem_cache_free(nat_entry_set_slab, set); 2938309cc2b6SJaegeuk Kim } 2939edc55aafSJaegeuk Kim return 0; 294059c9081bSYunlei He } 2941aec71382SChao Yu 2942309cc2b6SJaegeuk Kim /* 2943309cc2b6SJaegeuk Kim * This function is called during the checkpointing process. 2944309cc2b6SJaegeuk Kim */ 2945edc55aafSJaegeuk Kim int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc) 2946309cc2b6SJaegeuk Kim { 2947309cc2b6SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 2948309cc2b6SJaegeuk Kim struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA); 2949b7ad7512SChao Yu struct f2fs_journal *journal = curseg->journal; 29507aed0d45SJaegeuk Kim struct nat_entry_set *setvec[SETVEC_SIZE]; 2951309cc2b6SJaegeuk Kim struct nat_entry_set *set, *tmp; 2952309cc2b6SJaegeuk Kim unsigned int found; 2953309cc2b6SJaegeuk Kim nid_t set_idx = 0; 2954309cc2b6SJaegeuk Kim LIST_HEAD(sets); 2955edc55aafSJaegeuk Kim int err = 0; 2956309cc2b6SJaegeuk Kim 2957a95ba66aSJaegeuk Kim /* 2958a95ba66aSJaegeuk Kim * during unmount, let's flush nat_bits before checking 2959a95ba66aSJaegeuk Kim * nat_cnt[DIRTY_NAT]. 2960a95ba66aSJaegeuk Kim */ 29617f2ecdd8SJaegeuk Kim if (enabled_nat_bits(sbi, cpc)) { 29627f2ecdd8SJaegeuk Kim down_write(&nm_i->nat_tree_lock); 29637f2ecdd8SJaegeuk Kim remove_nats_in_journal(sbi); 29647f2ecdd8SJaegeuk Kim up_write(&nm_i->nat_tree_lock); 29657f2ecdd8SJaegeuk Kim } 29667f2ecdd8SJaegeuk Kim 2967a95ba66aSJaegeuk Kim if (!nm_i->nat_cnt[DIRTY_NAT]) 2968edc55aafSJaegeuk Kim return 0; 2969a5131193SJaegeuk Kim 2970b873b798SJaegeuk Kim down_write(&nm_i->nat_tree_lock); 2971a5131193SJaegeuk Kim 2972309cc2b6SJaegeuk Kim /* 2973309cc2b6SJaegeuk Kim * if there are no enough space in journal to store dirty nat 2974309cc2b6SJaegeuk Kim * entries, remove all entries from journal and merge them 2975309cc2b6SJaegeuk Kim * into nat entry set. 2976309cc2b6SJaegeuk Kim */ 2977900f7362SJaegeuk Kim if (enabled_nat_bits(sbi, cpc) || 2978a95ba66aSJaegeuk Kim !__has_cursum_space(journal, 2979a95ba66aSJaegeuk Kim nm_i->nat_cnt[DIRTY_NAT], NAT_JOURNAL)) 2980309cc2b6SJaegeuk Kim remove_nats_in_journal(sbi); 2981309cc2b6SJaegeuk Kim 2982309cc2b6SJaegeuk Kim while ((found = __gang_lookup_nat_set(nm_i, 29837aed0d45SJaegeuk Kim set_idx, SETVEC_SIZE, setvec))) { 2984309cc2b6SJaegeuk Kim unsigned idx; 2985309cc2b6SJaegeuk Kim set_idx = setvec[found - 1]->set + 1; 2986309cc2b6SJaegeuk Kim for (idx = 0; idx < found; idx++) 2987309cc2b6SJaegeuk Kim __adjust_nat_entry_set(setvec[idx], &sets, 2988dfc08a12SChao Yu MAX_NAT_JENTRIES(journal)); 2989309cc2b6SJaegeuk Kim } 2990309cc2b6SJaegeuk Kim 2991309cc2b6SJaegeuk Kim /* flush dirty nats in nat entry set */ 2992edc55aafSJaegeuk Kim list_for_each_entry_safe(set, tmp, &sets, set_list) { 2993edc55aafSJaegeuk Kim err = __flush_nat_entry_set(sbi, set, cpc); 2994edc55aafSJaegeuk Kim if (err) 2995edc55aafSJaegeuk Kim break; 2996edc55aafSJaegeuk Kim } 2997309cc2b6SJaegeuk Kim 2998b873b798SJaegeuk Kim up_write(&nm_i->nat_tree_lock); 299959c9081bSYunlei He /* Allow dirty nats by node block allocation in write_begin */ 3000edc55aafSJaegeuk Kim 3001edc55aafSJaegeuk Kim return err; 3002e05df3b1SJaegeuk Kim } 3003e05df3b1SJaegeuk Kim 300422ad0b6aSJaegeuk Kim static int __get_nat_bitmaps(struct f2fs_sb_info *sbi) 300522ad0b6aSJaegeuk Kim { 300622ad0b6aSJaegeuk Kim struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); 300722ad0b6aSJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 300822ad0b6aSJaegeuk Kim unsigned int nat_bits_bytes = nm_i->nat_blocks / BITS_PER_BYTE; 300922ad0b6aSJaegeuk Kim unsigned int i; 301022ad0b6aSJaegeuk Kim __u64 cp_ver = cur_cp_version(ckpt); 301122ad0b6aSJaegeuk Kim block_t nat_bits_addr; 301222ad0b6aSJaegeuk Kim 301322ad0b6aSJaegeuk Kim if (!enabled_nat_bits(sbi, NULL)) 301422ad0b6aSJaegeuk Kim return 0; 301522ad0b6aSJaegeuk Kim 3016df033cafSChao Yu nm_i->nat_bits_blocks = F2FS_BLK_ALIGN((nat_bits_bytes << 1) + 8); 30170b6d4ca0SEric Biggers nm_i->nat_bits = f2fs_kvzalloc(sbi, 3018acbf054dSChao Yu nm_i->nat_bits_blocks << F2FS_BLKSIZE_BITS, GFP_KERNEL); 301922ad0b6aSJaegeuk Kim if (!nm_i->nat_bits) 302022ad0b6aSJaegeuk Kim return -ENOMEM; 302122ad0b6aSJaegeuk Kim 302222ad0b6aSJaegeuk Kim nat_bits_addr = __start_cp_addr(sbi) + sbi->blocks_per_seg - 302322ad0b6aSJaegeuk Kim nm_i->nat_bits_blocks; 302422ad0b6aSJaegeuk Kim for (i = 0; i < nm_i->nat_bits_blocks; i++) { 30257735730dSChao Yu struct page *page; 30267735730dSChao Yu 30277735730dSChao Yu page = f2fs_get_meta_page(sbi, nat_bits_addr++); 30283b30eb19SChao Yu if (IS_ERR(page)) 30297735730dSChao Yu return PTR_ERR(page); 303022ad0b6aSJaegeuk Kim 303122ad0b6aSJaegeuk Kim memcpy(nm_i->nat_bits + (i << F2FS_BLKSIZE_BITS), 303222ad0b6aSJaegeuk Kim page_address(page), F2FS_BLKSIZE); 303322ad0b6aSJaegeuk Kim f2fs_put_page(page, 1); 303422ad0b6aSJaegeuk Kim } 303522ad0b6aSJaegeuk Kim 3036ced2c7eaSKinglong Mee cp_ver |= (cur_cp_crc(ckpt) << 32); 303722ad0b6aSJaegeuk Kim if (cpu_to_le64(cp_ver) != *(__le64 *)nm_i->nat_bits) { 303822ad0b6aSJaegeuk Kim disable_nat_bits(sbi, true); 303922ad0b6aSJaegeuk Kim return 0; 304022ad0b6aSJaegeuk Kim } 304122ad0b6aSJaegeuk Kim 304222ad0b6aSJaegeuk Kim nm_i->full_nat_bits = nm_i->nat_bits + 8; 304322ad0b6aSJaegeuk Kim nm_i->empty_nat_bits = nm_i->full_nat_bits + nat_bits_bytes; 304422ad0b6aSJaegeuk Kim 3045dcbb4c10SJoe Perches f2fs_notice(sbi, "Found nat_bits in checkpoint"); 304622ad0b6aSJaegeuk Kim return 0; 304722ad0b6aSJaegeuk Kim } 304822ad0b6aSJaegeuk Kim 3049bd80a4b9SHou Pengyang static inline void load_free_nid_bitmap(struct f2fs_sb_info *sbi) 30507041d5d2SChao Yu { 30517041d5d2SChao Yu struct f2fs_nm_info *nm_i = NM_I(sbi); 30527041d5d2SChao Yu unsigned int i = 0; 30537041d5d2SChao Yu nid_t nid, last_nid; 30547041d5d2SChao Yu 30557041d5d2SChao Yu if (!enabled_nat_bits(sbi, NULL)) 30567041d5d2SChao Yu return; 30577041d5d2SChao Yu 30587041d5d2SChao Yu for (i = 0; i < nm_i->nat_blocks; i++) { 30597041d5d2SChao Yu i = find_next_bit_le(nm_i->empty_nat_bits, nm_i->nat_blocks, i); 30607041d5d2SChao Yu if (i >= nm_i->nat_blocks) 30617041d5d2SChao Yu break; 30627041d5d2SChao Yu 30637041d5d2SChao Yu __set_bit_le(i, nm_i->nat_block_bitmap); 30647041d5d2SChao Yu 30657041d5d2SChao Yu nid = i * NAT_ENTRY_PER_BLOCK; 3066f6986edeSFan Li last_nid = nid + NAT_ENTRY_PER_BLOCK; 30677041d5d2SChao Yu 3068346fe752SChao Yu spin_lock(&NM_I(sbi)->nid_list_lock); 30697041d5d2SChao Yu for (; nid < last_nid; nid++) 3070346fe752SChao Yu update_free_nid_bitmap(sbi, nid, true, true); 3071346fe752SChao Yu spin_unlock(&NM_I(sbi)->nid_list_lock); 30727041d5d2SChao Yu } 30737041d5d2SChao Yu 30747041d5d2SChao Yu for (i = 0; i < nm_i->nat_blocks; i++) { 30757041d5d2SChao Yu i = find_next_bit_le(nm_i->full_nat_bits, nm_i->nat_blocks, i); 30767041d5d2SChao Yu if (i >= nm_i->nat_blocks) 30777041d5d2SChao Yu break; 30787041d5d2SChao Yu 30797041d5d2SChao Yu __set_bit_le(i, nm_i->nat_block_bitmap); 30807041d5d2SChao Yu } 30817041d5d2SChao Yu } 30827041d5d2SChao Yu 3083e05df3b1SJaegeuk Kim static int init_node_manager(struct f2fs_sb_info *sbi) 3084e05df3b1SJaegeuk Kim { 3085e05df3b1SJaegeuk Kim struct f2fs_super_block *sb_raw = F2FS_RAW_SUPER(sbi); 3086e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 3087e05df3b1SJaegeuk Kim unsigned char *version_bitmap; 308822ad0b6aSJaegeuk Kim unsigned int nat_segs; 308922ad0b6aSJaegeuk Kim int err; 3090e05df3b1SJaegeuk Kim 3091e05df3b1SJaegeuk Kim nm_i->nat_blkaddr = le32_to_cpu(sb_raw->nat_blkaddr); 3092e05df3b1SJaegeuk Kim 3093e05df3b1SJaegeuk Kim /* segment_count_nat includes pair segment so divide to 2. */ 3094e05df3b1SJaegeuk Kim nat_segs = le32_to_cpu(sb_raw->segment_count_nat) >> 1; 309522ad0b6aSJaegeuk Kim nm_i->nat_blocks = nat_segs << le32_to_cpu(sb_raw->log_blocks_per_seg); 309622ad0b6aSJaegeuk Kim nm_i->max_nid = NAT_ENTRY_PER_BLOCK * nm_i->nat_blocks; 30977ee0eeabSJaegeuk Kim 3098b63da15eSJaegeuk Kim /* not used nids: 0, node, meta, (and root counted as valid node) */ 309904d47e67SChao Yu nm_i->available_nids = nm_i->max_nid - sbi->total_valid_node_count - 310027cae0bcSChao Yu F2FS_RESERVED_NODE_NUM; 31019a4ffdf5SChao Yu nm_i->nid_cnt[FREE_NID] = 0; 31029a4ffdf5SChao Yu nm_i->nid_cnt[PREALLOC_NID] = 0; 3103cdfc41c1SJaegeuk Kim nm_i->ram_thresh = DEF_RAM_THRESHOLD; 3104ea1a29a0SChao Yu nm_i->ra_nid_pages = DEF_RA_NID_PAGES; 31052304cb0cSChao Yu nm_i->dirty_nats_ratio = DEF_DIRTY_NAT_RATIO_THRESHOLD; 3106e05df3b1SJaegeuk Kim 31078a7ed66aSJaegeuk Kim INIT_RADIX_TREE(&nm_i->free_nid_root, GFP_ATOMIC); 31089a4ffdf5SChao Yu INIT_LIST_HEAD(&nm_i->free_nid_list); 3109769ec6e5SJaegeuk Kim INIT_RADIX_TREE(&nm_i->nat_root, GFP_NOIO); 3110769ec6e5SJaegeuk Kim INIT_RADIX_TREE(&nm_i->nat_set_root, GFP_NOIO); 3111e05df3b1SJaegeuk Kim INIT_LIST_HEAD(&nm_i->nat_entries); 311222969158SChao Yu spin_lock_init(&nm_i->nat_list_lock); 3113e05df3b1SJaegeuk Kim 3114e05df3b1SJaegeuk Kim mutex_init(&nm_i->build_lock); 3115b8559dc2SChao Yu spin_lock_init(&nm_i->nid_list_lock); 3116b873b798SJaegeuk Kim init_rwsem(&nm_i->nat_tree_lock); 3117e05df3b1SJaegeuk Kim 3118e05df3b1SJaegeuk Kim nm_i->next_scan_nid = le32_to_cpu(sbi->ckpt->next_free_nid); 311979b5793bSAlexandru Gheorghiu nm_i->bitmap_size = __bitmap_size(sbi, NAT_BITMAP); 3120e05df3b1SJaegeuk Kim version_bitmap = __bitmap_ptr(sbi, NAT_BITMAP); 312179b5793bSAlexandru Gheorghiu nm_i->nat_bitmap = kmemdup(version_bitmap, nm_i->bitmap_size, 312279b5793bSAlexandru Gheorghiu GFP_KERNEL); 312379b5793bSAlexandru Gheorghiu if (!nm_i->nat_bitmap) 312479b5793bSAlexandru Gheorghiu return -ENOMEM; 3125599a09b2SChao Yu 312622ad0b6aSJaegeuk Kim err = __get_nat_bitmaps(sbi); 312722ad0b6aSJaegeuk Kim if (err) 312822ad0b6aSJaegeuk Kim return err; 312922ad0b6aSJaegeuk Kim 3130599a09b2SChao Yu #ifdef CONFIG_F2FS_CHECK_FS 3131599a09b2SChao Yu nm_i->nat_bitmap_mir = kmemdup(version_bitmap, nm_i->bitmap_size, 3132599a09b2SChao Yu GFP_KERNEL); 3133599a09b2SChao Yu if (!nm_i->nat_bitmap_mir) 3134599a09b2SChao Yu return -ENOMEM; 3135599a09b2SChao Yu #endif 3136599a09b2SChao Yu 3137e05df3b1SJaegeuk Kim return 0; 3138e05df3b1SJaegeuk Kim } 3139e05df3b1SJaegeuk Kim 31409f7e4a2cSJaegeuk Kim static int init_free_nid_cache(struct f2fs_sb_info *sbi) 31414ac91242SChao Yu { 31424ac91242SChao Yu struct f2fs_nm_info *nm_i = NM_I(sbi); 3143bb1105e4SJaegeuk Kim int i; 31444ac91242SChao Yu 3145026f0507SKees Cook nm_i->free_nid_bitmap = 31460b6d4ca0SEric Biggers f2fs_kvzalloc(sbi, array_size(sizeof(unsigned char *), 3147026f0507SKees Cook nm_i->nat_blocks), 3148026f0507SKees Cook GFP_KERNEL); 31494ac91242SChao Yu if (!nm_i->free_nid_bitmap) 31504ac91242SChao Yu return -ENOMEM; 31514ac91242SChao Yu 3152bb1105e4SJaegeuk Kim for (i = 0; i < nm_i->nat_blocks; i++) { 3153bb1105e4SJaegeuk Kim nm_i->free_nid_bitmap[i] = f2fs_kvzalloc(sbi, 3154e15d54d5SYunlei He f2fs_bitmap_size(NAT_ENTRY_PER_BLOCK), GFP_KERNEL); 315568c43a23SYunlei He if (!nm_i->free_nid_bitmap[i]) 3156bb1105e4SJaegeuk Kim return -ENOMEM; 3157bb1105e4SJaegeuk Kim } 3158bb1105e4SJaegeuk Kim 3159628b3d14SChao Yu nm_i->nat_block_bitmap = f2fs_kvzalloc(sbi, nm_i->nat_blocks / 8, 31604ac91242SChao Yu GFP_KERNEL); 31614ac91242SChao Yu if (!nm_i->nat_block_bitmap) 31624ac91242SChao Yu return -ENOMEM; 3163586d1492SChao Yu 31649d2a789cSKees Cook nm_i->free_nid_count = 31659d2a789cSKees Cook f2fs_kvzalloc(sbi, array_size(sizeof(unsigned short), 31669d2a789cSKees Cook nm_i->nat_blocks), 31679d2a789cSKees Cook GFP_KERNEL); 3168586d1492SChao Yu if (!nm_i->free_nid_count) 3169586d1492SChao Yu return -ENOMEM; 31704ac91242SChao Yu return 0; 31714ac91242SChao Yu } 31724ac91242SChao Yu 31734d57b86dSChao Yu int f2fs_build_node_manager(struct f2fs_sb_info *sbi) 3174e05df3b1SJaegeuk Kim { 3175e05df3b1SJaegeuk Kim int err; 3176e05df3b1SJaegeuk Kim 3177acbf054dSChao Yu sbi->nm_info = f2fs_kzalloc(sbi, sizeof(struct f2fs_nm_info), 3178acbf054dSChao Yu GFP_KERNEL); 3179e05df3b1SJaegeuk Kim if (!sbi->nm_info) 3180e05df3b1SJaegeuk Kim return -ENOMEM; 3181e05df3b1SJaegeuk Kim 3182e05df3b1SJaegeuk Kim err = init_node_manager(sbi); 3183e05df3b1SJaegeuk Kim if (err) 3184e05df3b1SJaegeuk Kim return err; 3185e05df3b1SJaegeuk Kim 31864ac91242SChao Yu err = init_free_nid_cache(sbi); 31874ac91242SChao Yu if (err) 31884ac91242SChao Yu return err; 31894ac91242SChao Yu 31907041d5d2SChao Yu /* load free nid status from nat_bits table */ 31917041d5d2SChao Yu load_free_nid_bitmap(sbi); 31927041d5d2SChao Yu 3193e2374015SChao Yu return f2fs_build_free_nids(sbi, true, true); 3194e05df3b1SJaegeuk Kim } 3195e05df3b1SJaegeuk Kim 31964d57b86dSChao Yu void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi) 3197e05df3b1SJaegeuk Kim { 3198e05df3b1SJaegeuk Kim struct f2fs_nm_info *nm_i = NM_I(sbi); 3199e05df3b1SJaegeuk Kim struct free_nid *i, *next_i; 3200e05df3b1SJaegeuk Kim struct nat_entry *natvec[NATVEC_SIZE]; 32017aed0d45SJaegeuk Kim struct nat_entry_set *setvec[SETVEC_SIZE]; 3202e05df3b1SJaegeuk Kim nid_t nid = 0; 3203e05df3b1SJaegeuk Kim unsigned int found; 3204e05df3b1SJaegeuk Kim 3205e05df3b1SJaegeuk Kim if (!nm_i) 3206e05df3b1SJaegeuk Kim return; 3207e05df3b1SJaegeuk Kim 3208e05df3b1SJaegeuk Kim /* destroy free nid list */ 3209b8559dc2SChao Yu spin_lock(&nm_i->nid_list_lock); 32109a4ffdf5SChao Yu list_for_each_entry_safe(i, next_i, &nm_i->free_nid_list, list) { 3211a0761f63SFan Li __remove_free_nid(sbi, i, FREE_NID); 3212b8559dc2SChao Yu spin_unlock(&nm_i->nid_list_lock); 3213cf0ee0f0SChao Yu kmem_cache_free(free_nid_slab, i); 3214b8559dc2SChao Yu spin_lock(&nm_i->nid_list_lock); 3215e05df3b1SJaegeuk Kim } 32169a4ffdf5SChao Yu f2fs_bug_on(sbi, nm_i->nid_cnt[FREE_NID]); 32179a4ffdf5SChao Yu f2fs_bug_on(sbi, nm_i->nid_cnt[PREALLOC_NID]); 32189a4ffdf5SChao Yu f2fs_bug_on(sbi, !list_empty(&nm_i->free_nid_list)); 3219b8559dc2SChao Yu spin_unlock(&nm_i->nid_list_lock); 3220e05df3b1SJaegeuk Kim 3221e05df3b1SJaegeuk Kim /* destroy nat cache */ 3222b873b798SJaegeuk Kim down_write(&nm_i->nat_tree_lock); 3223e05df3b1SJaegeuk Kim while ((found = __gang_lookup_nat_cache(nm_i, 3224e05df3b1SJaegeuk Kim nid, NATVEC_SIZE, natvec))) { 3225e05df3b1SJaegeuk Kim unsigned idx; 32267aed0d45SJaegeuk Kim 3227b6ce391eSGu Zheng nid = nat_get_nid(natvec[found - 1]) + 1; 322822969158SChao Yu for (idx = 0; idx < found; idx++) { 322922969158SChao Yu spin_lock(&nm_i->nat_list_lock); 323022969158SChao Yu list_del(&natvec[idx]->list); 323122969158SChao Yu spin_unlock(&nm_i->nat_list_lock); 323222969158SChao Yu 3233b6ce391eSGu Zheng __del_from_nat_cache(nm_i, natvec[idx]); 3234e05df3b1SJaegeuk Kim } 323522969158SChao Yu } 3236a95ba66aSJaegeuk Kim f2fs_bug_on(sbi, nm_i->nat_cnt[TOTAL_NAT]); 32377aed0d45SJaegeuk Kim 32387aed0d45SJaegeuk Kim /* destroy nat set cache */ 32397aed0d45SJaegeuk Kim nid = 0; 32407aed0d45SJaegeuk Kim while ((found = __gang_lookup_nat_set(nm_i, 32417aed0d45SJaegeuk Kim nid, SETVEC_SIZE, setvec))) { 32427aed0d45SJaegeuk Kim unsigned idx; 32437aed0d45SJaegeuk Kim 32447aed0d45SJaegeuk Kim nid = setvec[found - 1]->set + 1; 32457aed0d45SJaegeuk Kim for (idx = 0; idx < found; idx++) { 32467aed0d45SJaegeuk Kim /* entry_cnt is not zero, when cp_error was occurred */ 32477aed0d45SJaegeuk Kim f2fs_bug_on(sbi, !list_empty(&setvec[idx]->entry_list)); 32487aed0d45SJaegeuk Kim radix_tree_delete(&nm_i->nat_set_root, setvec[idx]->set); 32497aed0d45SJaegeuk Kim kmem_cache_free(nat_entry_set_slab, setvec[idx]); 32507aed0d45SJaegeuk Kim } 32517aed0d45SJaegeuk Kim } 3252b873b798SJaegeuk Kim up_write(&nm_i->nat_tree_lock); 3253e05df3b1SJaegeuk Kim 32544ac91242SChao Yu kvfree(nm_i->nat_block_bitmap); 3255bb1105e4SJaegeuk Kim if (nm_i->free_nid_bitmap) { 3256bb1105e4SJaegeuk Kim int i; 3257bb1105e4SJaegeuk Kim 3258bb1105e4SJaegeuk Kim for (i = 0; i < nm_i->nat_blocks; i++) 3259bb1105e4SJaegeuk Kim kvfree(nm_i->free_nid_bitmap[i]); 32605222595dSJaegeuk Kim kvfree(nm_i->free_nid_bitmap); 3261bb1105e4SJaegeuk Kim } 3262586d1492SChao Yu kvfree(nm_i->free_nid_count); 32634ac91242SChao Yu 32645222595dSJaegeuk Kim kvfree(nm_i->nat_bitmap); 32655222595dSJaegeuk Kim kvfree(nm_i->nat_bits); 3266599a09b2SChao Yu #ifdef CONFIG_F2FS_CHECK_FS 32675222595dSJaegeuk Kim kvfree(nm_i->nat_bitmap_mir); 3268599a09b2SChao Yu #endif 3269e05df3b1SJaegeuk Kim sbi->nm_info = NULL; 3270c8eb7024SChao Yu kfree(nm_i); 3271e05df3b1SJaegeuk Kim } 3272e05df3b1SJaegeuk Kim 32734d57b86dSChao Yu int __init f2fs_create_node_manager_caches(void) 3274e05df3b1SJaegeuk Kim { 327598510003SChao Yu nat_entry_slab = f2fs_kmem_cache_create("f2fs_nat_entry", 3276e8512d2eSGu Zheng sizeof(struct nat_entry)); 3277e05df3b1SJaegeuk Kim if (!nat_entry_slab) 3278aec71382SChao Yu goto fail; 3279e05df3b1SJaegeuk Kim 328098510003SChao Yu free_nid_slab = f2fs_kmem_cache_create("f2fs_free_nid", 3281e8512d2eSGu Zheng sizeof(struct free_nid)); 3282aec71382SChao Yu if (!free_nid_slab) 3283ce3e6d25SMarkus Elfring goto destroy_nat_entry; 3284aec71382SChao Yu 328598510003SChao Yu nat_entry_set_slab = f2fs_kmem_cache_create("f2fs_nat_entry_set", 3286aec71382SChao Yu sizeof(struct nat_entry_set)); 3287aec71382SChao Yu if (!nat_entry_set_slab) 3288ce3e6d25SMarkus Elfring goto destroy_free_nid; 328950fa53ecSChao Yu 329098510003SChao Yu fsync_node_entry_slab = f2fs_kmem_cache_create("f2fs_fsync_node_entry", 329150fa53ecSChao Yu sizeof(struct fsync_node_entry)); 329250fa53ecSChao Yu if (!fsync_node_entry_slab) 329350fa53ecSChao Yu goto destroy_nat_entry_set; 3294e05df3b1SJaegeuk Kim return 0; 3295aec71382SChao Yu 329650fa53ecSChao Yu destroy_nat_entry_set: 329750fa53ecSChao Yu kmem_cache_destroy(nat_entry_set_slab); 3298ce3e6d25SMarkus Elfring destroy_free_nid: 3299aec71382SChao Yu kmem_cache_destroy(free_nid_slab); 3300ce3e6d25SMarkus Elfring destroy_nat_entry: 3301aec71382SChao Yu kmem_cache_destroy(nat_entry_slab); 3302aec71382SChao Yu fail: 3303aec71382SChao Yu return -ENOMEM; 3304e05df3b1SJaegeuk Kim } 3305e05df3b1SJaegeuk Kim 33064d57b86dSChao Yu void f2fs_destroy_node_manager_caches(void) 3307e05df3b1SJaegeuk Kim { 330850fa53ecSChao Yu kmem_cache_destroy(fsync_node_entry_slab); 3309aec71382SChao Yu kmem_cache_destroy(nat_entry_set_slab); 3310e05df3b1SJaegeuk Kim kmem_cache_destroy(free_nid_slab); 3311e05df3b1SJaegeuk Kim kmem_cache_destroy(nat_entry_slab); 3312e05df3b1SJaegeuk Kim } 3313