Unverified Commit d48c3397 authored by Jeff Layton's avatar Jeff Layton Committed by Christian Brauner
Browse files

tmpfs: add support for multigrain timestamps 



Enable multigrain timestamps, which should ensure that there is an
apparent change to the timestamp whenever it has been written after
being actively observed via getattr.

tmpfs only requires the FS_MGTIME flag.

Reviewed-by: default avatarJan Kara <jack@suse.cz>
Signed-off-by: default avatarJeff Layton <jlayton@kernel.org>
Message-Id: <20230807-mgctime-v7-10-d1dec143a704@kernel.org>
Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
parent ffb6cf19

mm/shmem.c

+1 −1
Original line number Diff line number Diff line
@@ -4220,7 +4220,7 @@ static struct file_system_type shmem_fs_type = { 
#endif

	.kill_sb	= kill_litter_super,

#ifdef CONFIG_SHMEM

	.fs_flags	= FS_USERNS_MOUNT | FS_ALLOW_IDMAP,

	.fs_flags	= FS_USERNS_MOUNT | FS_ALLOW_IDMAP | FS_MGTIME,

#else

	.fs_flags	= FS_USERNS_MOUNT,

#endif