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authorJeff Layton <jlayton@kernel.org>2023-08-07 22:38:41 +0300
committerChristian Brauner <brauner@kernel.org>2023-08-11 10:04:57 +0300
commitd48c3397291690c3576d6c983b0a86ecbc203cac (patch)
tree3d92a4e17c86a28314290553062698bf71392104 /mm/shmem.c
parentffb6cf19e06334062744b7e3493f71e500964f8e (diff)
downloadlinux-d48c3397291690c3576d6c983b0a86ecbc203cac.tar.xz
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: Jan Kara <jack@suse.cz> Signed-off-by: Jeff Layton <jlayton@kernel.org> Message-Id: <20230807-mgctime-v7-10-d1dec143a704@kernel.org> Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'mm/shmem.c')
-rw-r--r--mm/shmem.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/shmem.c b/mm/shmem.c
index 142ead70e8c1..98cc4be7a8a8 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -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