f2fs: recovery missing dot dentries in root directory (8c2b1435) · Commits · 戴 / test

If f2fs was corrupted with missing dot dentries in root dirctory, it needs to recover them after fsck.f2fs set F2FS_INLINE_DOTS flag in directory inode when fsck.f2fs detects missing dot dentries. Signed-off-by:

Xue Liu <liuxueliu.liu@huawei.com> Signed-off-by:

Yong Sheng <shengyong1@huawei.com> Reviewed-by:

Chao Yu <chao2.yu@samsung.com> Signed-off-by:

Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/namei.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -260,6 +260,7 @@ static struct dentry f2fs_lookup(struct inode dir, struct dentry *dentry,
		struct page *page;
		nid_t ino;
		int err = 0;
		unsigned int root_ino = F2FS_ROOT_INO(F2FS_I_SB(dir));

		if (dentry->d_name.len > F2FS_NAME_LEN)
		return ERR_PTR(-ENAMETOOLONG);
		@@ -276,6 +277,12 @@ static struct dentry f2fs_lookup(struct inode dir, struct dentry *dentry,
		if (IS_ERR(inode))
		return ERR_CAST(inode);

		if ((dir->i_ino == root_ino) && f2fs_has_inline_dots(dir)) {
		err = __recover_dot_dentries(dir, root_ino);
		if (err)
		goto err_out;
		}

		if (f2fs_has_inline_dots(inode)) {
		err = __recover_dot_dentries(inode, dir->i_ino);
		if (err)

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