[PATCH 3.16 009/192] f2fs: load inode's flag from disk

Ben Hutchings
2017-10-09T14:06:14Z

From: Jaegeuk Kim <jaegeuk@kernel.org>

commit 93607124c5450148e592c3d18ac533b4e5f25b8b upstream.

This patch fixes missing inode flag loaded from disk, reported by Tom.

[tom@localhost ~]$ sudo mount /dev/loop0 /mnt/
[tom@localhost ~]$ sudo chown tom:tom /mnt/
[tom@localhost ~]$ touch /mnt/testfile
[tom@localhost ~]$ sudo chattr +i /mnt/testfile
[tom@localhost ~]$ echo test > /mnt/testfile
bash: /mnt/testfile: Operation not permitted
[tom@localhost ~]$ rm /mnt/testfile
rm: cannot remove '/mnt/testfile': Operation not permitted
[tom@localhost ~]$ sudo umount /mnt/
[tom@localhost ~]$ sudo mount /dev/loop0 /mnt/
[tom@localhost ~]$ lsattr /mnt/testfile
----i-------------- /mnt/testfile
[tom@localhost ~]$ echo test > /mnt/testfile
[tom@localhost ~]$ rm /mnt/testfile
[tom@localhost ~]$ sudo umount /mnt/

Reported-by: Tom Yan <tom.ty89@outlook.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
[bwh: Backported to 3.16: mark_inode_dirty() is in the right place, so only
f2fs_iget() needs to be changed]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -168,6 +168,7 @@ make_now:
ret = -EIO;
goto bad_inode;
}
+ f2fs_set_inode_flags(inode);
unlock_new_inode(inode);
trace_f2fs_iget(inode);
return inode;