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.
For ext4, we only need to enable the FS_MGTIME flag. Reviewed-by: Josef Bacik <[email protected]> Reviewed-by: Jan Kara <[email protected]> Tested-by: Randy Dunlap <[email protected]> # documentation bits Signed-off-by: Jeff Layton <[email protected]> --- fs/ext4/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 16a4ce704460..b77acba4a719 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -7329,7 +7329,7 @@ static struct file_system_type ext4_fs_type = { .init_fs_context = ext4_init_fs_context, .parameters = ext4_param_specs, .kill_sb = ext4_kill_sb, - .fs_flags = FS_REQUIRES_DEV | FS_ALLOW_IDMAP, + .fs_flags = FS_REQUIRES_DEV | FS_ALLOW_IDMAP | FS_MGTIME, }; MODULE_ALIAS_FS("ext4"); -- 2.46.2
