From 86928f984e8b166fcd0c7c241501bc00f53eb623 Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Sat, 7 Jun 2014 03:05:03 +0900 Subject: [PATCH] f2fs: avoid not to call remove_dirty_inode There is an errorneous case during the recovery like below. In recovery_dentry, 1) dir = f2fs_iget(); 2) mark the dir with FI_DELAY_IPUT 3) goto unmap_out After the end of recovery routine, there is no dirty dentries so the dir cannot be released by iput in remove_dirty_dir_inode. This patch fixes such the bug case by handling the iget and iput in the recovery_dentry procedure. Signed-off-by: Jaegeuk Kim --- fs/f2fs/recovery.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c index e950a2f..a112368 100644 --- a/fs/f2fs/recovery.c +++ b/fs/f2fs/recovery.c @@ -52,20 +52,13 @@ static int recover_dentry(struct page *ipage, struct inode *inode) goto out; } - if (is_inode_flag_set(F2FS_I(dir), FI_DIRTY_DIR)) { - iput(dir); - } else { - add_dirty_dir_inode(dir); - set_inode_flag(F2FS_I(dir), FI_DELAY_IPUT); - } - name.len = le32_to_cpu(raw_inode->i_namelen); name.name = raw_inode->i_name; if (unlikely(name.len > F2FS_NAME_LEN)) { WARN_ON(1); err = -ENAMETOOLONG; - goto out; + goto out_err; } retry: de = f2fs_find_entry(dir, &name, &page); @@ -90,11 +83,23 @@ retry: goto retry; } err = __f2fs_add_link(dir, &name, inode); + if (err) + goto out_err; + + if (is_inode_flag_set(F2FS_I(dir), FI_DELAY_IPUT)) { + iput(dir); + } else { + add_dirty_dir_inode(dir); + set_inode_flag(F2FS_I(dir), FI_DELAY_IPUT); + } + goto out; out_unmap_put: kunmap(page); f2fs_put_page(page, 0); +out_err: + iput(dir); out: f2fs_msg(inode->i_sb, KERN_NOTICE, "%s: ino = %x, name = %s, dir = %lx, err = %d", -- 2.7.4