kernel_optimize_test/fs/overlayfs
Miklos Szeredi d719e8f268 ovl: update atime on upper
Fix atime update logic in overlayfs.

This patch adds an i_op->update_time() handler to overlayfs inodes.  This
forwards atime updates to the upper layer only.  No atime updates are done
on lower layers.

Remove implicit atime updates to underlying files and directories with
O_NOATIME.  Remove explicit atime update in ovl_readlink().

Clear atime related mnt flags from cloned upper mount.  This means atime
updates are controlled purely by overlayfs mount options.

Reported-by: Konstantin Khlebnikov <koct9i@gmail.com> 
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2016-07-29 12:05:23 +02:00
..
copy_up.c ovl: override creds with the ones from the superblock mounter 2016-05-27 08:55:26 +02:00
dir.c ovl: update atime on upper 2016-07-29 12:05:23 +02:00
inode.c ovl: update atime on upper 2016-07-29 12:05:23 +02:00
Kconfig ovl: rename filesystem type to "overlay" 2014-11-20 16:39:59 +01:00
Makefile ovl: rename filesystem type to "overlay" 2014-11-20 16:39:59 +01:00
overlayfs.h ovl: update atime on upper 2016-07-29 12:05:23 +02:00
readdir.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-05-27 17:14:05 -07:00
super.c ovl: update atime on upper 2016-07-29 12:05:23 +02:00