From: Sheng Yong Date: Mon, 26 Jun 2017 02:41:36 +0000 (+0800) Subject: f2fs: do not set LOST_PINO for renamed dir X-Git-Tag: MMI-PSA29.97-13-9~5194^2~6 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b855bf0e1640aa4cf2d1eef056eebcd43e0d1f5e;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git f2fs: do not set LOST_PINO for renamed dir After renaming a directory, fsck could detect unmatched pino. The scenario can be reproduced as the following: $ mkdir /bar/subbar /foo $ rename /bar/subbar /foo Then fsck will report: [ASSERT] (__chk_dots_dentries:1182) --> Bad inode number[0x3] for '..', parent parent ino is [0x4] Rename sets LOST_PINO for old_inode. However, the flag cannot be cleared, since dir is written back with CP. So, let's get rid of LOST_PINO for a renamed dir and fix the pino directly at the end of rename. Signed-off-by: Sheng Yong Signed-off-by: Jaegeuk Kim --- diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c index c31b40e5f9cf..b75dc2f4ad57 100644 --- a/fs/f2fs/namei.c +++ b/fs/f2fs/namei.c @@ -772,7 +772,10 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry, } down_write(&F2FS_I(old_inode)->i_sem); - file_lost_pino(old_inode); + if (!old_dir_entry || whiteout) + file_lost_pino(old_inode); + else + F2FS_I(old_inode)->i_pino = new_dir->i_ino; up_write(&F2FS_I(old_inode)->i_sem); old_inode->i_ctime = current_time(old_inode);