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| author |   Jaegeuk Kim <jaegeuk@kernel.org> | 2015-03-30 15:07:16 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-04-10 15:08:57 -0700 |
| commit | 510022a85839a8409d1e6a519bb86ce71a84f30a (patch) | |
| tree | 69c0d7bc575c378ee0de42ab03a29c349afb74dc /fs/f2fs/inline.c | |
| parent | f2fs: fix mismatching lock and unlock pages for roll-forward recovery (diff) | |
| download | linux-dev-510022a85839a8409d1e6a519bb86ce71a84f30a.tar.xz linux-dev-510022a85839a8409d1e6a519bb86ce71a84f30a.zip | |
f2fs: add F2FS_INLINE_DOTS to recover missing dot dentries
If f2fs was corrupted with missing dot dentries, it needs to recover them after
fsck.f2fs detection.
The underlying precedure is:
1. The fsck.f2fs remains F2FS_INLINE_DOTS flag in directory inode, if it detects
missing dot dentries.
2. When f2fs looks up the corrupted directory, it triggers f2fs_add_link with
proper inode numbers and their dot and dotdot names.
3. Once f2fs recovers the directory without errors, it removes F2FS_INLINE_DOTS
finally.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/inline.c')
| -rw-r--r-- | fs/f2fs/inline.c | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c index 8241a87046c3..8140e4f0e538 100644 --- a/fs/f2fs/inline.c +++ b/fs/f2fs/inline.c @@ -390,7 +390,7 @@ out: } int f2fs_add_inline_entry(struct inode *dir, const struct qstr *name, - struct inode *inode) + struct inode *inode, nid_t ino, umode_t mode) { struct f2fs_sb_info *sbi = F2FS_I_SB(dir); struct page *ipage; @@ -400,7 +400,7 @@ int f2fs_add_inline_entry(struct inode *dir, const struct qstr *name, struct f2fs_inline_dentry *dentry_blk = NULL; struct f2fs_dentry_ptr d; int slots = GET_DENTRY_SLOTS(namelen); - struct page *page; + struct page *page = NULL; int err = 0; ipage = get_node_page(sbi, dir->i_ino); @@ -417,29 +417,34 @@ int f2fs_add_inline_entry(struct inode *dir, const struct qstr *name, goto out; } - down_write(&F2FS_I(inode)->i_sem); - page = init_inode_metadata(inode, dir, name, ipage); - if (IS_ERR(page)) { - err = PTR_ERR(page); - goto fail; + if (inode) { + down_write(&F2FS_I(inode)->i_sem); + page = init_inode_metadata(inode, dir, name, ipage); + if (IS_ERR(page)) { + err = PTR_ERR(page); + goto fail; + } } f2fs_wait_on_page_writeback(ipage, NODE); name_hash = f2fs_dentry_hash(name); make_dentry_ptr(&d, (void *)dentry_blk, 2); - f2fs_update_dentry(inode, &d, name, name_hash, bit_pos); + f2fs_update_dentry(ino, mode, &d, name, name_hash, bit_pos); set_page_dirty(ipage); /* we don't need to mark_inode_dirty now */ - F2FS_I(inode)->i_pino = dir->i_ino; - update_inode(inode, page); - f2fs_put_page(page, 1); + if (inode) { + F2FS_I(inode)->i_pino = dir->i_ino; + update_inode(inode, page); + f2fs_put_page(page, 1); + } update_parent_metadata(dir, inode, 0); fail: - up_write(&F2FS_I(inode)->i_sem); + if (inode) + up_write(&F2FS_I(inode)->i_sem); if (is_inode_flag_set(F2FS_I(dir), FI_UPDATE_DIR)) { update_inode(dir, ipage); |