17c1a000dSChao Yu // SPDX-License-Identifier: GPL-2.0
2e18c65b2SHuajun Li /*
3e18c65b2SHuajun Li * fs/f2fs/inline.c
4e18c65b2SHuajun Li * Copyright (c) 2013, Intel Corporation
5e18c65b2SHuajun Li * Authors: Huajun Li <huajun.li@intel.com>
6e18c65b2SHuajun Li * Haicheng Li <haicheng.li@intel.com>
7e18c65b2SHuajun Li */
8e18c65b2SHuajun Li
9e18c65b2SHuajun Li #include <linux/fs.h>
10e18c65b2SHuajun Li #include <linux/f2fs_fs.h>
1110c5db28SChristoph Hellwig #include <linux/fiemap.h>
12e18c65b2SHuajun Li
13e18c65b2SHuajun Li #include "f2fs.h"
1467f8cf3cSJaegeuk Kim #include "node.h"
15dd5a09bdSChao Yu #include <trace/events/f2fs.h>
16e18c65b2SHuajun Li
support_inline_data(struct inode * inode)17677a82b4SChao Yu static bool support_inline_data(struct inode *inode)
18e18c65b2SHuajun Li {
1988b88a66SJaegeuk Kim if (f2fs_is_atomic_file(inode))
2088b88a66SJaegeuk Kim return false;
21368a0e40SWanpeng Li if (!S_ISREG(inode->i_mode) && !S_ISLNK(inode->i_mode))
22e18c65b2SHuajun Li return false;
23f2470371SChao Yu if (i_size_read(inode) > MAX_INLINE_DATA(inode))
2492dffd01SJaegeuk Kim return false;
25677a82b4SChao Yu return true;
26677a82b4SChao Yu }
2792dffd01SJaegeuk Kim
f2fs_may_inline_data(struct inode * inode)28677a82b4SChao Yu bool f2fs_may_inline_data(struct inode *inode)
29677a82b4SChao Yu {
30677a82b4SChao Yu if (!support_inline_data(inode))
31fcc85a4dSJaegeuk Kim return false;
32fcc85a4dSJaegeuk Kim
33677a82b4SChao Yu return !f2fs_post_read_required(inode);
34677a82b4SChao Yu }
35677a82b4SChao Yu
f2fs_sanity_check_inline_data(struct inode * inode)36677a82b4SChao Yu bool f2fs_sanity_check_inline_data(struct inode *inode)
37677a82b4SChao Yu {
38677a82b4SChao Yu if (!f2fs_has_inline_data(inode))
39677a82b4SChao Yu return false;
40677a82b4SChao Yu
41677a82b4SChao Yu if (!support_inline_data(inode))
42e18c65b2SHuajun Li return true;
43677a82b4SChao Yu
44677a82b4SChao Yu /*
45677a82b4SChao Yu * used by sanity_check_inode(), when disk layout fields has not
46677a82b4SChao Yu * been synchronized to inmem fields.
47677a82b4SChao Yu */
48677a82b4SChao Yu return (S_ISREG(inode->i_mode) &&
49677a82b4SChao Yu (file_is_encrypt(inode) || file_is_verity(inode) ||
50677a82b4SChao Yu (F2FS_I(inode)->i_flags & F2FS_COMPR_FL)));
51e18c65b2SHuajun Li }
52e18c65b2SHuajun Li
f2fs_may_inline_dentry(struct inode * inode)5301b960e9SJaegeuk Kim bool f2fs_may_inline_dentry(struct inode *inode)
5401b960e9SJaegeuk Kim {
5501b960e9SJaegeuk Kim if (!test_opt(F2FS_I_SB(inode), INLINE_DENTRY))
5601b960e9SJaegeuk Kim return false;
5701b960e9SJaegeuk Kim
5801b960e9SJaegeuk Kim if (!S_ISDIR(inode->i_mode))
5901b960e9SJaegeuk Kim return false;
6001b960e9SJaegeuk Kim
6101b960e9SJaegeuk Kim return true;
6201b960e9SJaegeuk Kim }
6301b960e9SJaegeuk Kim
f2fs_do_read_inline_data(struct page * page,struct page * ipage)644d57b86dSChao Yu void f2fs_do_read_inline_data(struct page *page, struct page *ipage)
65e18c65b2SHuajun Li {
66f2470371SChao Yu struct inode *inode = page->mapping->host;
67e18c65b2SHuajun Li
68b3d208f9SJaegeuk Kim if (PageUptodate(page))
69b3d208f9SJaegeuk Kim return;
7004a17fb1SChao Yu
71b3d208f9SJaegeuk Kim f2fs_bug_on(F2FS_P_SB(page), page->index);
72e18c65b2SHuajun Li
73f2470371SChao Yu zero_user_segment(page, MAX_INLINE_DATA(inode), PAGE_SIZE);
74e18c65b2SHuajun Li
75e18c65b2SHuajun Li /* Copy the whole inline data block */
76b87846bdSEric Biggers memcpy_to_page(page, 0, inline_data_addr(inode, ipage),
77b87846bdSEric Biggers MAX_INLINE_DATA(inode));
78237c0790SJaegeuk Kim if (!PageUptodate(page))
79e18c65b2SHuajun Li SetPageUptodate(page);
80b3d208f9SJaegeuk Kim }
81e18c65b2SHuajun Li
f2fs_truncate_inline_inode(struct inode * inode,struct page * ipage,u64 from)824d57b86dSChao Yu void f2fs_truncate_inline_inode(struct inode *inode,
834d57b86dSChao Yu struct page *ipage, u64 from)
84feeb0debSChao Yu {
850bfcfccaSChao Yu void *addr;
860bfcfccaSChao Yu
87f2470371SChao Yu if (from >= MAX_INLINE_DATA(inode))
88bd4667cbSKinglong Mee return;
890bfcfccaSChao Yu
90f2470371SChao Yu addr = inline_data_addr(inode, ipage);
910bfcfccaSChao Yu
92bae0ee7aSChao Yu f2fs_wait_on_page_writeback(ipage, NODE, true, true);
93f2470371SChao Yu memset(addr + from, 0, MAX_INLINE_DATA(inode) - from);
94ee6d182fSJaegeuk Kim set_page_dirty(ipage);
95bd4667cbSKinglong Mee
96bd4667cbSKinglong Mee if (from == 0)
97bd4667cbSKinglong Mee clear_inode_flag(inode, FI_DATA_EXIST);
98feeb0debSChao Yu }
99feeb0debSChao Yu
f2fs_read_inline_data(struct inode * inode,struct page * page)100b3d208f9SJaegeuk Kim int f2fs_read_inline_data(struct inode *inode, struct page *page)
101b3d208f9SJaegeuk Kim {
102b3d208f9SJaegeuk Kim struct page *ipage;
103b3d208f9SJaegeuk Kim
1044d57b86dSChao Yu ipage = f2fs_get_node_page(F2FS_I_SB(inode), inode->i_ino);
105b3d208f9SJaegeuk Kim if (IS_ERR(ipage)) {
106b3d208f9SJaegeuk Kim unlock_page(page);
107b3d208f9SJaegeuk Kim return PTR_ERR(ipage);
108b3d208f9SJaegeuk Kim }
109b3d208f9SJaegeuk Kim
110b3d208f9SJaegeuk Kim if (!f2fs_has_inline_data(inode)) {
111b3d208f9SJaegeuk Kim f2fs_put_page(ipage, 1);
112b3d208f9SJaegeuk Kim return -EAGAIN;
113b3d208f9SJaegeuk Kim }
114b3d208f9SJaegeuk Kim
115b3d208f9SJaegeuk Kim if (page->index)
11609cbfeafSKirill A. Shutemov zero_user_segment(page, 0, PAGE_SIZE);
117b3d208f9SJaegeuk Kim else
1184d57b86dSChao Yu f2fs_do_read_inline_data(page, ipage);
119b3d208f9SJaegeuk Kim
120237c0790SJaegeuk Kim if (!PageUptodate(page))
121b3d208f9SJaegeuk Kim SetPageUptodate(page);
122b3d208f9SJaegeuk Kim f2fs_put_page(ipage, 1);
123b3d208f9SJaegeuk Kim unlock_page(page);
124e18c65b2SHuajun Li return 0;
125e18c65b2SHuajun Li }
126e18c65b2SHuajun Li
f2fs_convert_inline_page(struct dnode_of_data * dn,struct page * page)127b3d208f9SJaegeuk Kim int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page)
128e18c65b2SHuajun Li {
129e18c65b2SHuajun Li struct f2fs_io_info fio = {
13005ca3632SJaegeuk Kim .sbi = F2FS_I_SB(dn->inode),
13139d787beSChao Yu .ino = dn->inode->i_ino,
132e18c65b2SHuajun Li .type = DATA,
13304d328deSMike Christie .op = REQ_OP_WRITE,
13470fd7614SChristoph Hellwig .op_flags = REQ_SYNC | REQ_PRIO,
13505ca3632SJaegeuk Kim .page = page,
1364375a336SJaegeuk Kim .encrypted_page = NULL,
137b0af6d49SChao Yu .io_type = FS_DATA_IO,
138e18c65b2SHuajun Li };
1397735730dSChao Yu struct node_info ni;
140158c194cSJaegeuk Kim int dirty, err;
141e18c65b2SHuajun Li
142b3d208f9SJaegeuk Kim if (!f2fs_exist_data(dn->inode))
143b3d208f9SJaegeuk Kim goto clear_out;
144ec4e7af4SJaegeuk Kim
145b3d208f9SJaegeuk Kim err = f2fs_reserve_block(dn, 0);
14615c6e3aaSJaegeuk Kim if (err)
147b3d208f9SJaegeuk Kim return err;
148e18c65b2SHuajun Li
149a9419b63SJaegeuk Kim err = f2fs_get_node_info(fio.sbi, dn->nid, &ni, false);
1507735730dSChao Yu if (err) {
151e8c82c11SChao Yu f2fs_truncate_data_blocks_range(dn, 1);
1527735730dSChao Yu f2fs_put_dnode(dn);
1537735730dSChao Yu return err;
1547735730dSChao Yu }
1557735730dSChao Yu
1567735730dSChao Yu fio.version = ni.version;
1577735730dSChao Yu
1584dbe38dcSChao Yu if (unlikely(dn->data_blkaddr != NEW_ADDR)) {
1594dbe38dcSChao Yu f2fs_put_dnode(dn);
1604dbe38dcSChao Yu set_sbi_flag(fio.sbi, SBI_NEED_FSCK);
161dcbb4c10SJoe Perches f2fs_warn(fio.sbi, "%s: corrupted inline inode ino=%lx, i_addr[0]:0x%x, run fsck to fix.",
1624dbe38dcSChao Yu __func__, dn->inode->i_ino, dn->data_blkaddr);
16395fa90c9SChao Yu f2fs_handle_error(fio.sbi, ERROR_INVALID_BLKADDR);
16410f966bbSChao Yu return -EFSCORRUPTED;
1654dbe38dcSChao Yu }
1664dbe38dcSChao Yu
16785ead818SYunlei He f2fs_bug_on(F2FS_P_SB(page), PageWriteback(page));
168b3d208f9SJaegeuk Kim
1694d57b86dSChao Yu f2fs_do_read_inline_data(page, dn->inode_page);
1706282adbfSJaegeuk Kim set_page_dirty(page);
1716282adbfSJaegeuk Kim
172158c194cSJaegeuk Kim /* clear dirty state */
173158c194cSJaegeuk Kim dirty = clear_page_dirty_for_io(page);
174158c194cSJaegeuk Kim
175e18c65b2SHuajun Li /* write data page to try to make data consistent */
176e18c65b2SHuajun Li set_page_writeback(page);
1777a9d7548SChao Yu fio.old_blkaddr = dn->data_blkaddr;
178ef095d19SJaegeuk Kim set_inode_flag(dn->inode, FI_HOT_DATA);
1794d57b86dSChao Yu f2fs_outplace_write_data(dn, &fio);
180bae0ee7aSChao Yu f2fs_wait_on_page_writeback(page, DATA, true, true);
181933439c8SChao Yu if (dirty) {
182158c194cSJaegeuk Kim inode_dec_dirty_pages(dn->inode);
1834d57b86dSChao Yu f2fs_remove_dirty_inode(dn->inode);
184933439c8SChao Yu }
185e18c65b2SHuajun Li
18695f5b0fcSJaegeuk Kim /* this converted inline_data should be recovered. */
18791942321SJaegeuk Kim set_inode_flag(dn->inode, FI_APPEND_WRITE);
18895f5b0fcSJaegeuk Kim
189e18c65b2SHuajun Li /* clear inline data and flag after data writeback */
1904d57b86dSChao Yu f2fs_truncate_inline_inode(dn->inode, dn->inode_page, 0);
191b763f3beSChao Yu clear_page_private_inline(dn->inode_page);
192b3d208f9SJaegeuk Kim clear_out:
193b3d208f9SJaegeuk Kim stat_dec_inline_inode(dn->inode);
194bd4667cbSKinglong Mee clear_inode_flag(dn->inode, FI_INLINE_DATA);
195b3d208f9SJaegeuk Kim f2fs_put_dnode(dn);
196b3d208f9SJaegeuk Kim return 0;
197e18c65b2SHuajun Li }
198e18c65b2SHuajun Li
f2fs_convert_inline_inode(struct inode * inode)199b3d208f9SJaegeuk Kim int f2fs_convert_inline_inode(struct inode *inode)
200e18c65b2SHuajun Li {
201b3d208f9SJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
202b3d208f9SJaegeuk Kim struct dnode_of_data dn;
203b3d208f9SJaegeuk Kim struct page *ipage, *page;
204b3d208f9SJaegeuk Kim int err = 0;
205e18c65b2SHuajun Li
206ec2ddf49SJaegeuk Kim if (!f2fs_has_inline_data(inode) ||
207ec2ddf49SJaegeuk Kim f2fs_hw_is_readonly(sbi) || f2fs_readonly(sbi->sb))
208b9d777b8SJaegeuk Kim return 0;
209b9d777b8SJaegeuk Kim
21010a26878SChao Yu err = f2fs_dquot_initialize(inode);
21125fb04dbSYi Chen if (err)
21225fb04dbSYi Chen return err;
21325fb04dbSYi Chen
214300e129cSJaegeuk Kim page = f2fs_grab_cache_page(inode->i_mapping, 0, false);
215b3d208f9SJaegeuk Kim if (!page)
2169e09fc85SJaegeuk Kim return -ENOMEM;
217b3d208f9SJaegeuk Kim
218b3d208f9SJaegeuk Kim f2fs_lock_op(sbi);
219b3d208f9SJaegeuk Kim
2204d57b86dSChao Yu ipage = f2fs_get_node_page(sbi, inode->i_ino);
221b3d208f9SJaegeuk Kim if (IS_ERR(ipage)) {
2226d20aff8SJaegeuk Kim err = PTR_ERR(ipage);
2236d20aff8SJaegeuk Kim goto out;
224b067ba1fSJaegeuk Kim }
225e18c65b2SHuajun Li
226b3d208f9SJaegeuk Kim set_new_dnode(&dn, inode, ipage, ipage, 0);
227b3d208f9SJaegeuk Kim
228b3d208f9SJaegeuk Kim if (f2fs_has_inline_data(inode))
229b3d208f9SJaegeuk Kim err = f2fs_convert_inline_page(&dn, page);
230b3d208f9SJaegeuk Kim
231b3d208f9SJaegeuk Kim f2fs_put_dnode(&dn);
2326d20aff8SJaegeuk Kim out:
233b3d208f9SJaegeuk Kim f2fs_unlock_op(sbi);
234b3d208f9SJaegeuk Kim
235b3d208f9SJaegeuk Kim f2fs_put_page(page, 1);
2362a340760SJaegeuk Kim
23728e18ee6SColin Ian King if (!err)
2382c4db1a6SJaegeuk Kim f2fs_balance_fs(sbi, dn.node_changed);
2392a340760SJaegeuk Kim
240e18c65b2SHuajun Li return err;
241e18c65b2SHuajun Li }
242e18c65b2SHuajun Li
f2fs_write_inline_data(struct inode * inode,struct page * page)243b3d208f9SJaegeuk Kim int f2fs_write_inline_data(struct inode *inode, struct page *page)
244e18c65b2SHuajun Li {
245e18c65b2SHuajun Li struct dnode_of_data dn;
246e18c65b2SHuajun Li int err;
247e18c65b2SHuajun Li
248e18c65b2SHuajun Li set_new_dnode(&dn, inode, NULL, NULL, 0);
2494d57b86dSChao Yu err = f2fs_get_dnode_of_data(&dn, 0, LOOKUP_NODE);
250e18c65b2SHuajun Li if (err)
251e18c65b2SHuajun Li return err;
252e18c65b2SHuajun Li
253c08a690bSJaegeuk Kim if (!f2fs_has_inline_data(inode)) {
254b3d208f9SJaegeuk Kim f2fs_put_dnode(&dn);
255b3d208f9SJaegeuk Kim return -EAGAIN;
256c08a690bSJaegeuk Kim }
257c08a690bSJaegeuk Kim
258b3d208f9SJaegeuk Kim f2fs_bug_on(F2FS_I_SB(inode), page->index);
259b3d208f9SJaegeuk Kim
260bae0ee7aSChao Yu f2fs_wait_on_page_writeback(dn.inode_page, NODE, true, true);
261b87846bdSEric Biggers memcpy_from_page(inline_data_addr(inode, dn.inode_page),
262b87846bdSEric Biggers page, 0, MAX_INLINE_DATA(inode));
263ee6d182fSJaegeuk Kim set_page_dirty(dn.inode_page);
264e18c65b2SHuajun Li
2655ec2d99dSMatthew Wilcox f2fs_clear_page_cache_dirty_tag(page);
2660abd8e70SDaeho Jeong
26791942321SJaegeuk Kim set_inode_flag(inode, FI_APPEND_WRITE);
26891942321SJaegeuk Kim set_inode_flag(inode, FI_DATA_EXIST);
269b3d208f9SJaegeuk Kim
270b763f3beSChao Yu clear_page_private_inline(dn.inode_page);
271e18c65b2SHuajun Li f2fs_put_dnode(&dn);
272e18c65b2SHuajun Li return 0;
273e18c65b2SHuajun Li }
2741e1bb4baSJaegeuk Kim
f2fs_recover_inline_data(struct inode * inode,struct page * npage)2759627a7b3SChao Yu int f2fs_recover_inline_data(struct inode *inode, struct page *npage)
2761e1bb4baSJaegeuk Kim {
2774081363fSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2781e1bb4baSJaegeuk Kim struct f2fs_inode *ri = NULL;
2791e1bb4baSJaegeuk Kim void *src_addr, *dst_addr;
2801e1bb4baSJaegeuk Kim struct page *ipage;
2811e1bb4baSJaegeuk Kim
2821e1bb4baSJaegeuk Kim /*
2831e1bb4baSJaegeuk Kim * The inline_data recovery policy is as follows.
2841e1bb4baSJaegeuk Kim * [prev.] [next] of inline_data flag
2851e1bb4baSJaegeuk Kim * o o -> recover inline_data
2861e1bb4baSJaegeuk Kim * o x -> remove inline_data, and then recover data blocks
2876e5ca4fcSJack Qiu * x o -> remove data blocks, and then recover inline_data
2881e1bb4baSJaegeuk Kim * x x -> recover data blocks
2891e1bb4baSJaegeuk Kim */
2901e1bb4baSJaegeuk Kim if (IS_INODE(npage))
2911e1bb4baSJaegeuk Kim ri = F2FS_INODE(npage);
2921e1bb4baSJaegeuk Kim
2931e1bb4baSJaegeuk Kim if (f2fs_has_inline_data(inode) &&
2940342fd30SJaegeuk Kim ri && (ri->i_inline & F2FS_INLINE_DATA)) {
2951e1bb4baSJaegeuk Kim process_inline:
2964d57b86dSChao Yu ipage = f2fs_get_node_page(sbi, inode->i_ino);
2979627a7b3SChao Yu if (IS_ERR(ipage))
2989627a7b3SChao Yu return PTR_ERR(ipage);
2991e1bb4baSJaegeuk Kim
300bae0ee7aSChao Yu f2fs_wait_on_page_writeback(ipage, NODE, true, true);
30154b591dfSJaegeuk Kim
302f2470371SChao Yu src_addr = inline_data_addr(inode, npage);
303f2470371SChao Yu dst_addr = inline_data_addr(inode, ipage);
304f2470371SChao Yu memcpy(dst_addr, src_addr, MAX_INLINE_DATA(inode));
305b3d208f9SJaegeuk Kim
30691942321SJaegeuk Kim set_inode_flag(inode, FI_INLINE_DATA);
30791942321SJaegeuk Kim set_inode_flag(inode, FI_DATA_EXIST);
308b3d208f9SJaegeuk Kim
309ee6d182fSJaegeuk Kim set_page_dirty(ipage);
3101e1bb4baSJaegeuk Kim f2fs_put_page(ipage, 1);
3119627a7b3SChao Yu return 1;
3121e1bb4baSJaegeuk Kim }
3131e1bb4baSJaegeuk Kim
3141e1bb4baSJaegeuk Kim if (f2fs_has_inline_data(inode)) {
3154d57b86dSChao Yu ipage = f2fs_get_node_page(sbi, inode->i_ino);
3169627a7b3SChao Yu if (IS_ERR(ipage))
3179627a7b3SChao Yu return PTR_ERR(ipage);
3184d57b86dSChao Yu f2fs_truncate_inline_inode(inode, ipage, 0);
31984921561SJack Qiu stat_dec_inline_inode(inode);
320bd4667cbSKinglong Mee clear_inode_flag(inode, FI_INLINE_DATA);
3211e1bb4baSJaegeuk Kim f2fs_put_page(ipage, 1);
3220342fd30SJaegeuk Kim } else if (ri && (ri->i_inline & F2FS_INLINE_DATA)) {
3239627a7b3SChao Yu int ret;
3249627a7b3SChao Yu
3259627a7b3SChao Yu ret = f2fs_truncate_blocks(inode, 0, false);
3269627a7b3SChao Yu if (ret)
3279627a7b3SChao Yu return ret;
32884921561SJack Qiu stat_inc_inline_inode(inode);
3291e1bb4baSJaegeuk Kim goto process_inline;
3301e1bb4baSJaegeuk Kim }
3319627a7b3SChao Yu return 0;
3321e1bb4baSJaegeuk Kim }
333201a05beSChao Yu
f2fs_find_in_inline_dir(struct inode * dir,const struct f2fs_filename * fname,struct page ** res_page)3344d57b86dSChao Yu struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
33543c780baSEric Biggers const struct f2fs_filename *fname,
33643c780baSEric Biggers struct page **res_page)
337201a05beSChao Yu {
338201a05beSChao Yu struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
339201a05beSChao Yu struct f2fs_dir_entry *de;
3407b3cd7d6SJaegeuk Kim struct f2fs_dentry_ptr d;
3414e6ebf6dSJaegeuk Kim struct page *ipage;
342f2470371SChao Yu void *inline_dentry;
343201a05beSChao Yu
3444d57b86dSChao Yu ipage = f2fs_get_node_page(sbi, dir->i_ino);
34542d96401SJaegeuk Kim if (IS_ERR(ipage)) {
34642d96401SJaegeuk Kim *res_page = ipage;
347201a05beSChao Yu return NULL;
34842d96401SJaegeuk Kim }
349201a05beSChao Yu
350f2470371SChao Yu inline_dentry = inline_data_addr(dir, ipage);
351201a05beSChao Yu
352f2470371SChao Yu make_dentry_ptr_inline(dir, &d, inline_dentry);
35343c780baSEric Biggers de = f2fs_find_target_dentry(&d, fname, NULL);
3544e6ebf6dSJaegeuk Kim unlock_page(ipage);
3557ad08a58SDaniel Rosenberg if (IS_ERR(de)) {
3567ad08a58SDaniel Rosenberg *res_page = ERR_CAST(de);
3577ad08a58SDaniel Rosenberg de = NULL;
3587ad08a58SDaniel Rosenberg }
3594e6ebf6dSJaegeuk Kim if (de)
360201a05beSChao Yu *res_page = ipage;
3614e6ebf6dSJaegeuk Kim else
3624e6ebf6dSJaegeuk Kim f2fs_put_page(ipage, 0);
363201a05beSChao Yu
364201a05beSChao Yu return de;
365201a05beSChao Yu }
366201a05beSChao Yu
f2fs_make_empty_inline_dir(struct inode * inode,struct inode * parent,struct page * ipage)3674d57b86dSChao Yu int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
368201a05beSChao Yu struct page *ipage)
369201a05beSChao Yu {
370062a3e7bSJaegeuk Kim struct f2fs_dentry_ptr d;
371f2470371SChao Yu void *inline_dentry;
372201a05beSChao Yu
373f2470371SChao Yu inline_dentry = inline_data_addr(inode, ipage);
374201a05beSChao Yu
375f2470371SChao Yu make_dentry_ptr_inline(inode, &d, inline_dentry);
3764d57b86dSChao Yu f2fs_do_make_empty_dir(inode, parent, &d);
377201a05beSChao Yu
378201a05beSChao Yu set_page_dirty(ipage);
379201a05beSChao Yu
380201a05beSChao Yu /* update i_size to MAX_INLINE_DATA */
381f2470371SChao Yu if (i_size_read(inode) < MAX_INLINE_DATA(inode))
382f2470371SChao Yu f2fs_i_size_write(inode, MAX_INLINE_DATA(inode));
383201a05beSChao Yu return 0;
384201a05beSChao Yu }
385201a05beSChao Yu
386470f00e9SChao Yu /*
387470f00e9SChao Yu * NOTE: ipage is grabbed by caller, but if any error occurs, we should
388470f00e9SChao Yu * release ipage in this function.
389470f00e9SChao Yu */
f2fs_move_inline_dirents(struct inode * dir,struct page * ipage,void * inline_dentry)390675f10bdSChao Yu static int f2fs_move_inline_dirents(struct inode *dir, struct page *ipage,
391f2470371SChao Yu void *inline_dentry)
392201a05beSChao Yu {
393201a05beSChao Yu struct page *page;
394201a05beSChao Yu struct dnode_of_data dn;
395201a05beSChao Yu struct f2fs_dentry_block *dentry_blk;
39676a9dd85SChao Yu struct f2fs_dentry_ptr src, dst;
397201a05beSChao Yu int err;
398201a05beSChao Yu
399dd973007SJaegeuk Kim page = f2fs_grab_cache_page(dir->i_mapping, 0, true);
400470f00e9SChao Yu if (!page) {
401470f00e9SChao Yu f2fs_put_page(ipage, 1);
402201a05beSChao Yu return -ENOMEM;
403470f00e9SChao Yu }
404201a05beSChao Yu
405201a05beSChao Yu set_new_dnode(&dn, dir, ipage, NULL, 0);
406201a05beSChao Yu err = f2fs_reserve_block(&dn, 0);
407201a05beSChao Yu if (err)
408201a05beSChao Yu goto out;
409201a05beSChao Yu
4104dbe38dcSChao Yu if (unlikely(dn.data_blkaddr != NEW_ADDR)) {
4114dbe38dcSChao Yu f2fs_put_dnode(&dn);
4124dbe38dcSChao Yu set_sbi_flag(F2FS_P_SB(page), SBI_NEED_FSCK);
413dcbb4c10SJoe Perches f2fs_warn(F2FS_P_SB(page), "%s: corrupted inline inode ino=%lx, i_addr[0]:0x%x, run fsck to fix.",
4144dbe38dcSChao Yu __func__, dir->i_ino, dn.data_blkaddr);
41595fa90c9SChao Yu f2fs_handle_error(F2FS_P_SB(page), ERROR_INVALID_BLKADDR);
41610f966bbSChao Yu err = -EFSCORRUPTED;
4174dbe38dcSChao Yu goto out;
4184dbe38dcSChao Yu }
4194dbe38dcSChao Yu
420bae0ee7aSChao Yu f2fs_wait_on_page_writeback(page, DATA, true, true);
421201a05beSChao Yu
422bdbc90faSYunlong Song dentry_blk = page_address(page);
423201a05beSChao Yu
4249a5571cfSEric Biggers /*
4259a5571cfSEric Biggers * Start by zeroing the full block, to ensure that all unused space is
4269a5571cfSEric Biggers * zeroed and no uninitialized memory is leaked to disk.
4279a5571cfSEric Biggers */
4289a5571cfSEric Biggers memset(dentry_blk, 0, F2FS_BLKSIZE);
4299a5571cfSEric Biggers
430f2470371SChao Yu make_dentry_ptr_inline(dir, &src, inline_dentry);
431f2470371SChao Yu make_dentry_ptr_block(dir, &dst, dentry_blk);
43276a9dd85SChao Yu
433201a05beSChao Yu /* copy data from inline dentry block to new dentry block */
43476a9dd85SChao Yu memcpy(dst.bitmap, src.bitmap, src.nr_bitmap);
43576a9dd85SChao Yu memcpy(dst.dentry, src.dentry, SIZE_OF_DIR_ENTRY * src.max);
43676a9dd85SChao Yu memcpy(dst.filename, src.filename, src.max * F2FS_SLOT_LEN);
437201a05beSChao Yu
438237c0790SJaegeuk Kim if (!PageUptodate(page))
439201a05beSChao Yu SetPageUptodate(page);
440201a05beSChao Yu set_page_dirty(page);
441201a05beSChao Yu
442201a05beSChao Yu /* clear inline dir and flag after data writeback */
4434d57b86dSChao Yu f2fs_truncate_inline_inode(dir, ipage, 0);
444b3d208f9SJaegeuk Kim
4453289c061SJaegeuk Kim stat_dec_inline_dir(dir);
44691942321SJaegeuk Kim clear_inode_flag(dir, FI_INLINE_DENTRY);
447201a05beSChao Yu
44845a74688SChao Yu /*
44945a74688SChao Yu * should retrieve reserved space which was used to keep
45045a74688SChao Yu * inline_dentry's structure for backward compatibility.
45145a74688SChao Yu */
45245a74688SChao Yu if (!f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(dir)) &&
45345a74688SChao Yu !f2fs_has_inline_xattr(dir))
45445a74688SChao Yu F2FS_I(dir)->i_inline_xattr_size = 0;
45545a74688SChao Yu
456205b9822SJaegeuk Kim f2fs_i_depth_write(dir, 1);
457ee6d182fSJaegeuk Kim if (i_size_read(dir) < PAGE_SIZE)
458fc9581c8SJaegeuk Kim f2fs_i_size_write(dir, PAGE_SIZE);
459201a05beSChao Yu out:
460201a05beSChao Yu f2fs_put_page(page, 1);
461201a05beSChao Yu return err;
462201a05beSChao Yu }
463201a05beSChao Yu
f2fs_add_inline_entries(struct inode * dir,void * inline_dentry)464f2470371SChao Yu static int f2fs_add_inline_entries(struct inode *dir, void *inline_dentry)
465675f10bdSChao Yu {
466675f10bdSChao Yu struct f2fs_dentry_ptr d;
467675f10bdSChao Yu unsigned long bit_pos = 0;
468675f10bdSChao Yu int err = 0;
469675f10bdSChao Yu
470f2470371SChao Yu make_dentry_ptr_inline(dir, &d, inline_dentry);
471675f10bdSChao Yu
472675f10bdSChao Yu while (bit_pos < d.max) {
473675f10bdSChao Yu struct f2fs_dir_entry *de;
47443c780baSEric Biggers struct f2fs_filename fname;
475675f10bdSChao Yu nid_t ino;
476675f10bdSChao Yu umode_t fake_mode;
477675f10bdSChao Yu
478675f10bdSChao Yu if (!test_bit_le(bit_pos, d.bitmap)) {
479675f10bdSChao Yu bit_pos++;
480675f10bdSChao Yu continue;
481675f10bdSChao Yu }
482675f10bdSChao Yu
483675f10bdSChao Yu de = &d.dentry[bit_pos];
484a4a13f58SChao Yu
485a4a13f58SChao Yu if (unlikely(!de->name_len)) {
486a4a13f58SChao Yu bit_pos++;
487a4a13f58SChao Yu continue;
488a4a13f58SChao Yu }
489a4a13f58SChao Yu
49043c780baSEric Biggers /*
49143c780baSEric Biggers * We only need the disk_name and hash to move the dentry.
49243c780baSEric Biggers * We don't need the original or casefolded filenames.
49343c780baSEric Biggers */
49443c780baSEric Biggers memset(&fname, 0, sizeof(fname));
49543c780baSEric Biggers fname.disk_name.name = d.filename[bit_pos];
49643c780baSEric Biggers fname.disk_name.len = le16_to_cpu(de->name_len);
49743c780baSEric Biggers fname.hash = de->hash_code;
498675f10bdSChao Yu
499675f10bdSChao Yu ino = le32_to_cpu(de->ino);
5000c9f4521SWeizhao Ouyang fake_mode = fs_ftype_to_dtype(de->file_type) << S_DT_SHIFT;
501675f10bdSChao Yu
50243c780baSEric Biggers err = f2fs_add_regular_entry(dir, &fname, NULL, ino, fake_mode);
503675f10bdSChao Yu if (err)
504675f10bdSChao Yu goto punch_dentry_pages;
505675f10bdSChao Yu
506675f10bdSChao Yu bit_pos += GET_DENTRY_SLOTS(le16_to_cpu(de->name_len));
507675f10bdSChao Yu }
508675f10bdSChao Yu return 0;
509675f10bdSChao Yu punch_dentry_pages:
510675f10bdSChao Yu truncate_inode_pages(&dir->i_data, 0);
511c42d28ceSChao Yu f2fs_truncate_blocks(dir, 0, false);
5124d57b86dSChao Yu f2fs_remove_dirty_inode(dir);
513675f10bdSChao Yu return err;
514675f10bdSChao Yu }
515675f10bdSChao Yu
f2fs_move_rehashed_dirents(struct inode * dir,struct page * ipage,void * inline_dentry)516675f10bdSChao Yu static int f2fs_move_rehashed_dirents(struct inode *dir, struct page *ipage,
517f2470371SChao Yu void *inline_dentry)
518675f10bdSChao Yu {
519f2470371SChao Yu void *backup_dentry;
520675f10bdSChao Yu int err;
521675f10bdSChao Yu
5221ecc0c5cSChao Yu backup_dentry = f2fs_kmalloc(F2FS_I_SB(dir),
523f2470371SChao Yu MAX_INLINE_DATA(dir), GFP_F2FS_ZERO);
5248975bdf4SChao Yu if (!backup_dentry) {
5258975bdf4SChao Yu f2fs_put_page(ipage, 1);
526675f10bdSChao Yu return -ENOMEM;
5278975bdf4SChao Yu }
528675f10bdSChao Yu
529f2470371SChao Yu memcpy(backup_dentry, inline_dentry, MAX_INLINE_DATA(dir));
5304d57b86dSChao Yu f2fs_truncate_inline_inode(dir, ipage, 0);
531675f10bdSChao Yu
532675f10bdSChao Yu unlock_page(ipage);
533675f10bdSChao Yu
534675f10bdSChao Yu err = f2fs_add_inline_entries(dir, backup_dentry);
535675f10bdSChao Yu if (err)
536675f10bdSChao Yu goto recover;
537675f10bdSChao Yu
538675f10bdSChao Yu lock_page(ipage);
539675f10bdSChao Yu
540675f10bdSChao Yu stat_dec_inline_dir(dir);
54191942321SJaegeuk Kim clear_inode_flag(dir, FI_INLINE_DENTRY);
54245a74688SChao Yu
54345a74688SChao Yu /*
54445a74688SChao Yu * should retrieve reserved space which was used to keep
54545a74688SChao Yu * inline_dentry's structure for backward compatibility.
54645a74688SChao Yu */
54745a74688SChao Yu if (!f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(dir)) &&
54845a74688SChao Yu !f2fs_has_inline_xattr(dir))
54945a74688SChao Yu F2FS_I(dir)->i_inline_xattr_size = 0;
55045a74688SChao Yu
551c8eb7024SChao Yu kfree(backup_dentry);
552675f10bdSChao Yu return 0;
553675f10bdSChao Yu recover:
554675f10bdSChao Yu lock_page(ipage);
555bae0ee7aSChao Yu f2fs_wait_on_page_writeback(ipage, NODE, true, true);
556f2470371SChao Yu memcpy(inline_dentry, backup_dentry, MAX_INLINE_DATA(dir));
557205b9822SJaegeuk Kim f2fs_i_depth_write(dir, 0);
558f2470371SChao Yu f2fs_i_size_write(dir, MAX_INLINE_DATA(dir));
559ee6d182fSJaegeuk Kim set_page_dirty(ipage);
560675f10bdSChao Yu f2fs_put_page(ipage, 1);
561675f10bdSChao Yu
562c8eb7024SChao Yu kfree(backup_dentry);
563675f10bdSChao Yu return err;
564675f10bdSChao Yu }
565675f10bdSChao Yu
do_convert_inline_dir(struct inode * dir,struct page * ipage,void * inline_dentry)566b06af2afSJaegeuk Kim static int do_convert_inline_dir(struct inode *dir, struct page *ipage,
567f2470371SChao Yu void *inline_dentry)
568675f10bdSChao Yu {
569675f10bdSChao Yu if (!F2FS_I(dir)->i_dir_level)
570675f10bdSChao Yu return f2fs_move_inline_dirents(dir, ipage, inline_dentry);
571675f10bdSChao Yu else
572675f10bdSChao Yu return f2fs_move_rehashed_dirents(dir, ipage, inline_dentry);
573675f10bdSChao Yu }
574675f10bdSChao Yu
f2fs_try_convert_inline_dir(struct inode * dir,struct dentry * dentry)575b06af2afSJaegeuk Kim int f2fs_try_convert_inline_dir(struct inode *dir, struct dentry *dentry)
576b06af2afSJaegeuk Kim {
577b06af2afSJaegeuk Kim struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
578b06af2afSJaegeuk Kim struct page *ipage;
57943c780baSEric Biggers struct f2fs_filename fname;
580b06af2afSJaegeuk Kim void *inline_dentry = NULL;
581b06af2afSJaegeuk Kim int err = 0;
582b06af2afSJaegeuk Kim
583b06af2afSJaegeuk Kim if (!f2fs_has_inline_dentry(dir))
584b06af2afSJaegeuk Kim return 0;
585b06af2afSJaegeuk Kim
586b06af2afSJaegeuk Kim f2fs_lock_op(sbi);
587b06af2afSJaegeuk Kim
58843c780baSEric Biggers err = f2fs_setup_filename(dir, &dentry->d_name, 0, &fname);
589b06af2afSJaegeuk Kim if (err)
590b06af2afSJaegeuk Kim goto out;
591b06af2afSJaegeuk Kim
592b06af2afSJaegeuk Kim ipage = f2fs_get_node_page(sbi, dir->i_ino);
593b06af2afSJaegeuk Kim if (IS_ERR(ipage)) {
594b06af2afSJaegeuk Kim err = PTR_ERR(ipage);
595ff5f85c8SEric Biggers goto out_fname;
596b06af2afSJaegeuk Kim }
597b06af2afSJaegeuk Kim
598b06af2afSJaegeuk Kim if (f2fs_has_enough_room(dir, ipage, &fname)) {
599b06af2afSJaegeuk Kim f2fs_put_page(ipage, 1);
600ff5f85c8SEric Biggers goto out_fname;
601b06af2afSJaegeuk Kim }
602b06af2afSJaegeuk Kim
603b06af2afSJaegeuk Kim inline_dentry = inline_data_addr(dir, ipage);
604b06af2afSJaegeuk Kim
605b06af2afSJaegeuk Kim err = do_convert_inline_dir(dir, ipage, inline_dentry);
606b06af2afSJaegeuk Kim if (!err)
607b06af2afSJaegeuk Kim f2fs_put_page(ipage, 1);
608ff5f85c8SEric Biggers out_fname:
60943c780baSEric Biggers f2fs_free_filename(&fname);
610b06af2afSJaegeuk Kim out:
611b06af2afSJaegeuk Kim f2fs_unlock_op(sbi);
612b06af2afSJaegeuk Kim return err;
613b06af2afSJaegeuk Kim }
614b06af2afSJaegeuk Kim
f2fs_add_inline_entry(struct inode * dir,const struct f2fs_filename * fname,struct inode * inode,nid_t ino,umode_t mode)61543c780baSEric Biggers int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname,
616510022a8SJaegeuk Kim struct inode *inode, nid_t ino, umode_t mode)
617201a05beSChao Yu {
618201a05beSChao Yu struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
619201a05beSChao Yu struct page *ipage;
620201a05beSChao Yu unsigned int bit_pos;
621f2470371SChao Yu void *inline_dentry = NULL;
6223b4d732aSChao Yu struct f2fs_dentry_ptr d;
62343c780baSEric Biggers int slots = GET_DENTRY_SLOTS(fname->disk_name.len);
624510022a8SJaegeuk Kim struct page *page = NULL;
625201a05beSChao Yu int err = 0;
626201a05beSChao Yu
6274d57b86dSChao Yu ipage = f2fs_get_node_page(sbi, dir->i_ino);
628201a05beSChao Yu if (IS_ERR(ipage))
629201a05beSChao Yu return PTR_ERR(ipage);
630201a05beSChao Yu
631f2470371SChao Yu inline_dentry = inline_data_addr(dir, ipage);
632f2470371SChao Yu make_dentry_ptr_inline(dir, &d, inline_dentry);
63376a9dd85SChao Yu
6344d57b86dSChao Yu bit_pos = f2fs_room_for_filename(d.bitmap, slots, d.max);
63576a9dd85SChao Yu if (bit_pos >= d.max) {
636b06af2afSJaegeuk Kim err = do_convert_inline_dir(dir, ipage, inline_dentry);
637470f00e9SChao Yu if (err)
638470f00e9SChao Yu return err;
639201a05beSChao Yu err = -EAGAIN;
640201a05beSChao Yu goto out;
641201a05beSChao Yu }
642201a05beSChao Yu
643510022a8SJaegeuk Kim if (inode) {
644*5c13e238SJaegeuk Kim f2fs_down_write_nested(&F2FS_I(inode)->i_sem,
645*5c13e238SJaegeuk Kim SINGLE_DEPTH_NESTING);
64643c780baSEric Biggers page = f2fs_init_inode_metadata(inode, dir, fname, ipage);
647201a05beSChao Yu if (IS_ERR(page)) {
648201a05beSChao Yu err = PTR_ERR(page);
649201a05beSChao Yu goto fail;
650201a05beSChao Yu }
651510022a8SJaegeuk Kim }
652bce8d112SJaegeuk Kim
653bae0ee7aSChao Yu f2fs_wait_on_page_writeback(ipage, NODE, true, true);
6543b4d732aSChao Yu
65543c780baSEric Biggers f2fs_update_dentry(ino, mode, &d, &fname->disk_name, fname->hash,
65643c780baSEric Biggers bit_pos);
6573b4d732aSChao Yu
658201a05beSChao Yu set_page_dirty(ipage);
659201a05beSChao Yu
660201a05beSChao Yu /* we don't need to mark_inode_dirty now */
661510022a8SJaegeuk Kim if (inode) {
662205b9822SJaegeuk Kim f2fs_i_pino_write(inode, dir->i_ino);
66398194030SChao Yu
66498194030SChao Yu /* synchronize inode page's data from inode cache */
66598194030SChao Yu if (is_inode_flag_set(inode, FI_NEW_INODE))
66698194030SChao Yu f2fs_update_inode(inode, page);
66798194030SChao Yu
668201a05beSChao Yu f2fs_put_page(page, 1);
669510022a8SJaegeuk Kim }
670201a05beSChao Yu
6714d57b86dSChao Yu f2fs_update_parent_metadata(dir, inode, 0);
672201a05beSChao Yu fail:
673510022a8SJaegeuk Kim if (inode)
674e4544b63STim Murray f2fs_up_write(&F2FS_I(inode)->i_sem);
675201a05beSChao Yu out:
676201a05beSChao Yu f2fs_put_page(ipage, 1);
677201a05beSChao Yu return err;
678201a05beSChao Yu }
679201a05beSChao Yu
f2fs_delete_inline_entry(struct f2fs_dir_entry * dentry,struct page * page,struct inode * dir,struct inode * inode)680201a05beSChao Yu void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, struct page *page,
681201a05beSChao Yu struct inode *dir, struct inode *inode)
682201a05beSChao Yu {
68376a9dd85SChao Yu struct f2fs_dentry_ptr d;
684f2470371SChao Yu void *inline_dentry;
685201a05beSChao Yu int slots = GET_DENTRY_SLOTS(le16_to_cpu(dentry->name_len));
686201a05beSChao Yu unsigned int bit_pos;
687201a05beSChao Yu int i;
688201a05beSChao Yu
689201a05beSChao Yu lock_page(page);
690bae0ee7aSChao Yu f2fs_wait_on_page_writeback(page, NODE, true, true);
691201a05beSChao Yu
692f2470371SChao Yu inline_dentry = inline_data_addr(dir, page);
693f2470371SChao Yu make_dentry_ptr_inline(dir, &d, inline_dentry);
69476a9dd85SChao Yu
69576a9dd85SChao Yu bit_pos = dentry - d.dentry;
696201a05beSChao Yu for (i = 0; i < slots; i++)
69776a9dd85SChao Yu __clear_bit_le(bit_pos + i, d.bitmap);
698201a05beSChao Yu
699201a05beSChao Yu set_page_dirty(page);
7009f7c45ccSJaegeuk Kim f2fs_put_page(page, 1);
701201a05beSChao Yu
702078cd827SDeepa Dinamani dir->i_mtime = inode_set_ctime_current(dir);
7037c45729aSJaegeuk Kim f2fs_mark_inode_dirty_sync(dir, false);
704201a05beSChao Yu
705201a05beSChao Yu if (inode)
7069f7c45ccSJaegeuk Kim f2fs_drop_nlink(dir, inode);
707201a05beSChao Yu }
708201a05beSChao Yu
f2fs_empty_inline_dir(struct inode * dir)709201a05beSChao Yu bool f2fs_empty_inline_dir(struct inode *dir)
710201a05beSChao Yu {
711201a05beSChao Yu struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
712201a05beSChao Yu struct page *ipage;
713201a05beSChao Yu unsigned int bit_pos = 2;
714f2470371SChao Yu void *inline_dentry;
71576a9dd85SChao Yu struct f2fs_dentry_ptr d;
716201a05beSChao Yu
7174d57b86dSChao Yu ipage = f2fs_get_node_page(sbi, dir->i_ino);
718201a05beSChao Yu if (IS_ERR(ipage))
719201a05beSChao Yu return false;
720201a05beSChao Yu
721f2470371SChao Yu inline_dentry = inline_data_addr(dir, ipage);
722f2470371SChao Yu make_dentry_ptr_inline(dir, &d, inline_dentry);
72376a9dd85SChao Yu
72476a9dd85SChao Yu bit_pos = find_next_bit_le(d.bitmap, d.max, bit_pos);
725201a05beSChao Yu
726201a05beSChao Yu f2fs_put_page(ipage, 1);
727201a05beSChao Yu
72876a9dd85SChao Yu if (bit_pos < d.max)
729201a05beSChao Yu return false;
730201a05beSChao Yu
731201a05beSChao Yu return true;
732201a05beSChao Yu }
733201a05beSChao Yu
f2fs_read_inline_dir(struct file * file,struct dir_context * ctx,struct fscrypt_str * fstr)734d8c6822aSJaegeuk Kim int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
7350b81d077SJaegeuk Kim struct fscrypt_str *fstr)
736201a05beSChao Yu {
737201a05beSChao Yu struct inode *inode = file_inode(file);
738201a05beSChao Yu struct page *ipage = NULL;
7397b3cd7d6SJaegeuk Kim struct f2fs_dentry_ptr d;
740f2470371SChao Yu void *inline_dentry = NULL;
741ed6bd4b1SChao Yu int err;
742201a05beSChao Yu
74376a9dd85SChao Yu make_dentry_ptr_inline(inode, &d, inline_dentry);
74476a9dd85SChao Yu
74576a9dd85SChao Yu if (ctx->pos == d.max)
746201a05beSChao Yu return 0;
747201a05beSChao Yu
7484d57b86dSChao Yu ipage = f2fs_get_node_page(F2FS_I_SB(inode), inode->i_ino);
749201a05beSChao Yu if (IS_ERR(ipage))
750201a05beSChao Yu return PTR_ERR(ipage);
751201a05beSChao Yu
752aadcef64SChao Yu /*
753aadcef64SChao Yu * f2fs_readdir was protected by inode.i_rwsem, it is safe to access
754aadcef64SChao Yu * ipage without page's lock held.
755aadcef64SChao Yu */
756aadcef64SChao Yu unlock_page(ipage);
757aadcef64SChao Yu
758f2470371SChao Yu inline_dentry = inline_data_addr(inode, ipage);
759201a05beSChao Yu
76064c24ecbSTomohiro Kusumi make_dentry_ptr_inline(inode, &d, inline_dentry);
7617b3cd7d6SJaegeuk Kim
762ed6bd4b1SChao Yu err = f2fs_fill_dentries(ctx, &d, 0, fstr);
763ed6bd4b1SChao Yu if (!err)
76476a9dd85SChao Yu ctx->pos = d.max;
765201a05beSChao Yu
766aadcef64SChao Yu f2fs_put_page(ipage, 0);
767ed6bd4b1SChao Yu return err < 0 ? err : 0;
768201a05beSChao Yu }
76967f8cf3cSJaegeuk Kim
f2fs_inline_data_fiemap(struct inode * inode,struct fiemap_extent_info * fieinfo,__u64 start,__u64 len)77067f8cf3cSJaegeuk Kim int f2fs_inline_data_fiemap(struct inode *inode,
77167f8cf3cSJaegeuk Kim struct fiemap_extent_info *fieinfo, __u64 start, __u64 len)
77267f8cf3cSJaegeuk Kim {
77367f8cf3cSJaegeuk Kim __u64 byteaddr, ilen;
77467f8cf3cSJaegeuk Kim __u32 flags = FIEMAP_EXTENT_DATA_INLINE | FIEMAP_EXTENT_NOT_ALIGNED |
77567f8cf3cSJaegeuk Kim FIEMAP_EXTENT_LAST;
77667f8cf3cSJaegeuk Kim struct node_info ni;
77767f8cf3cSJaegeuk Kim struct page *ipage;
77867f8cf3cSJaegeuk Kim int err = 0;
77967f8cf3cSJaegeuk Kim
7804d57b86dSChao Yu ipage = f2fs_get_node_page(F2FS_I_SB(inode), inode->i_ino);
78167f8cf3cSJaegeuk Kim if (IS_ERR(ipage))
78267f8cf3cSJaegeuk Kim return PTR_ERR(ipage);
78367f8cf3cSJaegeuk Kim
7847975f349SChao Yu if ((S_ISREG(inode->i_mode) || S_ISLNK(inode->i_mode)) &&
7857975f349SChao Yu !f2fs_has_inline_data(inode)) {
7867975f349SChao Yu err = -EAGAIN;
7877975f349SChao Yu goto out;
7887975f349SChao Yu }
7897975f349SChao Yu
7907975f349SChao Yu if (S_ISDIR(inode->i_mode) && !f2fs_has_inline_dentry(inode)) {
79167f8cf3cSJaegeuk Kim err = -EAGAIN;
79267f8cf3cSJaegeuk Kim goto out;
79367f8cf3cSJaegeuk Kim }
79467f8cf3cSJaegeuk Kim
795f2470371SChao Yu ilen = min_t(size_t, MAX_INLINE_DATA(inode), i_size_read(inode));
79667f8cf3cSJaegeuk Kim if (start >= ilen)
79767f8cf3cSJaegeuk Kim goto out;
79867f8cf3cSJaegeuk Kim if (start + len < ilen)
79967f8cf3cSJaegeuk Kim ilen = start + len;
80067f8cf3cSJaegeuk Kim ilen -= start;
80167f8cf3cSJaegeuk Kim
802a9419b63SJaegeuk Kim err = f2fs_get_node_info(F2FS_I_SB(inode), inode->i_ino, &ni, false);
8037735730dSChao Yu if (err)
8047735730dSChao Yu goto out;
8057735730dSChao Yu
80667f8cf3cSJaegeuk Kim byteaddr = (__u64)ni.blk_addr << inode->i_sb->s_blocksize_bits;
807f2470371SChao Yu byteaddr += (char *)inline_data_addr(inode, ipage) -
808f2470371SChao Yu (char *)F2FS_INODE(ipage);
80967f8cf3cSJaegeuk Kim err = fiemap_fill_next_extent(fieinfo, start, byteaddr, ilen, flags);
810dd5a09bdSChao Yu trace_f2fs_fiemap(inode, start, byteaddr, ilen, flags, err);
81167f8cf3cSJaegeuk Kim out:
81267f8cf3cSJaegeuk Kim f2fs_put_page(ipage, 1);
81367f8cf3cSJaegeuk Kim return err;
81467f8cf3cSJaegeuk Kim }
815