2.6.30 adds support for a strictatime mount parameter, used to request
strict atime update semantics. The following patch adds support for it
to mount.
Signed-off-by: Matthew Garrett <mjg@xxxxxxxxxx>
diff --git a/mount/mount.8 b/mount/mount.8
index e3eb810..8da6768 100644
--- a/mount/mount.8
+++ b/mount/mount.8
@@ -807,6 +807,13 @@ Do not use
feature (e.g, for systems where the feature is enabled by default, for
more details see mount options in /proc/mounts).
.TP
+.B strictatime
+Update inode access times whenever a file is accessed. Disables noatime and
+.B relatime.
+.TP
+.B nostrictatime
+Use the kernel's default behaviour for inode access time updates.
+.TP
.B suid
Allow set-user-identifier or set-group-identifier bits to take
effect.
diff --git a/mount/mount.c b/mount/mount.c
index 94fa94f..f48f9d4 100644
--- a/mount/mount.c
+++ b/mount/mount.c
@@ -188,6 +188,10 @@ static const struct opt_map opt_map[] = {
{ "norelatime", 0, 1, MS_RELATIME }, /* Update access time without regard
to mtime/ctime */
#endif
+#ifdef MS_STRICTATIME
+ { "strictatime", 0, 0, MS_STRICTATIME }, /* Strict atime semantics */
+ { "nostrictatime", 0, 1, MS_STRICTATIME }, /* kernel default atime */
+#endif
{ "nofail", 0, 0, MS_COMMENT}, /* Do not fail if ENOENT on dev */
{ NULL, 0, 0, 0 }
};
diff --git a/mount/mount_constants.h b/mount/mount_constants.h
index 41311c0..81686f1 100644
--- a/mount/mount_constants.h
+++ b/mount/mount_constants.h
@@ -59,6 +59,9 @@
#ifndef MS_I_VERSION
#define MS_I_VERSION (1<<23) /* update inode I_version field */
#endif
+#ifndef MS_STRICTATIME
+#define MS_STRICTATIME (1<<24) /* strict atime semantics */
+#endif
/*
* Magic mount flag number. Had to be or-ed to the flag values.
*/
--
Matthew Garrett | mjg59@xxxxxxxxxxxxx
--
To unsubscribe from this list: send the line "unsubscribe util-linux-ng" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
