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[v3,9/9] tmpfs: add support for multigrain timestamps

Message ID 20240705-mgtime-v3-9-85b2daa9b335@kernel.org
State Not Applicable
Headers show
Series fs: multigrain timestamp redux | expand

Commit Message

Jeff Layton July 5, 2024, 5:02 p.m. UTC 
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.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
 mm/shmem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/mm/shmem.c b/mm/shmem.c
index 440e2a9d8726..6dc817064140 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -4649,7 +4649,7 @@  static struct file_system_type shmem_fs_type = {
 	.parameters	= shmem_fs_parameters,
 #endif
 	.kill_sb	= kill_litter_super,
-	.fs_flags	= FS_USERNS_MOUNT | FS_ALLOW_IDMAP,
+	.fs_flags	= FS_USERNS_MOUNT | FS_ALLOW_IDMAP | FS_MGTIME,
 };
 
 void __init shmem_init(void)