fs: fix iversion handling
authorChristoph Hellwig <hch@infradead.org>
Tue, 19 Nov 2013 15:17:07 +0000 (07:17 -0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 7 Mar 2014 05:30:06 +0000 (21:30 -0800)
commitd5685be1332f2dde176de463b0eebea875118a8a
treea7ae4ba7ac90071189d396860601c3b90a1983d1
parent5fb67b91df96912aead945bce9ad796e755b6c32
fs: fix iversion handling

commit dff6efc326a4d5f305797d4a6bba14f374fdd633 upstream.

Currently notify_change directly updates i_version for size updates,
which not only is counter to how all other fields are updated through
struct iattr, but also breaks XFS, which need inode updates to happen
under its own lock, and synchronized to the structure that gets written
to the log.

Remove the update in the common code, and it to btrfs and ext4,
XFS already does a proper updaste internally and currently gets a
double update with the existing code.

IMHO this is 3.13 and -stable material and should go in through the XFS
tree.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Acked-by: Jan Kara <jack@suse.cz>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Chris Mason <clm@fb.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/attr.c
fs/btrfs/inode.c
fs/ext4/inode.c