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Add a strictatime mount option

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Add support for explicitly requesting full atime updates. This makes it
possible for kernels to default to relatime but still allow userspace to
override it.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Matthew Garrett 2009-03-26 17:49:56 +00:00 • committed by Linus Torvalds
commit d0adde574b
3 changed files with 7 additions and 1 deletions
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include/linux/fs.h
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@ -141,6 +141,7 @@ struct inodes_stat_t {
#define MS_RELATIME (1<<21) /* Update atime relative to mtime/ctime. */
#define MS_KERNMOUNT (1<<22) /* this is a kern_mount call */
#define MS_I_VERSION (1<<23) /* Update inode I_version field */
#define MS_STRICTATIME (1<<24) /* Always perform atime updates */
#define MS_ACTIVE (1<<30)
#define MS_NOUSER (1<<31)