f2fs: fix i_name during f2fs_sync_file

As similar as the i_pino fix, i_name also should be fixed when i_nlink is 1.

The errorneous scenario is like this.

1. touch test1
2. link test1 test2
3. unlink test2
4. fsync test1

After this, i_name should be test1.

CC: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 65ca3b3..c2deb27 100644 (file)
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -112,11 +112,13 @@ static int get_parent_ino(struct inode *inode, nid_t *pino)
        if (!dentry)
                return 0;
 
-       inode = igrab(dentry->d_parent->d_inode);
-       dput(dentry);
+       if (update_dent_inode(inode, &dentry->d_name)) {
+               dput(dentry);
+               return 0;
+       }
 
-       *pino = inode->i_ino;
-       iput(inode);
+       *pino = parent_ino(dentry);
+       dput(dentry);
        return 1;
 }