lkml.org 
[lkml]   [2006]   [Aug]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
SubjectRe: [patch] Relative atime - userspace
On Mon, Aug 28, 2006 at 05:49:01PM -0400, Josef Sipek wrote:
> On Fri, Aug 25, 2006 at 04:56:19PM -0700, Valerie Henson wrote:
> > #define MS_VERBOSE 0x8000 /* 32768 */
> ...
> > +#define MS_RELATIME 0x200000 /* 200000: Update access times relative
>
> Just a small thing... 0x200000 != 200000

Just goes to show what my default base is... :)

Somehow "2097152: blah blah blah" just doesn't seem helpful - I just
removed it. Fresh patch below.

-VAL

---
mount/mount.8 | 7 +++++++
mount/mount.c | 6 ++++++
mount/mount_constants.h | 4 ++++
3 files changed, 17 insertions(+)

--- util-linux-2.13-pre7.orig/mount/mount.8
+++ util-linux-2.13-pre7/mount/mount.8
@@ -586,6 +586,13 @@ access on the news spool to speed up new
.B nodiratime
Do not update directory inode access times on this filesystem.
.TP
+.B relatime
+Update inode access times relative to modify or change time. Access
+time is only updated if the previous access time was earlier than the
+current modify or change time. (Similar to noatime, but doesn't break
+mutt or other applications that need to know if a file has been read
+since the last time it was modified.)
+.TP
.B noauto
Can only be mounted explicitly (i.e., the
.B \-a
--- util-linux-2.13-pre7.orig/mount/mount.c
+++ util-linux-2.13-pre7/mount/mount.c
@@ -164,6 +164,12 @@ static const struct opt_map opt_map[] =
{ "diratime", 0, 1, MS_NODIRATIME }, /* Update dir access times */
{ "nodiratime", 0, 0, MS_NODIRATIME },/* Do not update dir access times */
#endif
+#ifdef MS_RELATIME
+ { "relatime", 0, 0, MS_RELATIME }, /* Update access times relative to
+ mtime/ctime */
+ { "norelatime", 0, 1, MS_RELATIME }, /* Update access time without regard
+ to mtime/ctime */
+#endif
{ NULL, 0, 0, 0 }
};

--- util-linux-2.13-pre7.orig/mount/mount_constants.h
+++ util-linux-2.13-pre7/mount/mount_constants.h
@@ -57,6 +57,10 @@ if we have a stack or plain mount - moun
#ifndef MS_VERBOSE
#define MS_VERBOSE 0x8000 /* 32768 */
#endif
+#ifndef MS_RELATIME
+#define MS_RELATIME 0x200000 /* Update access times relative
+ to mtime/ctime */
+#endif
/*
* Magic mount flag number. Had to be or-ed to the flag values.
*/
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
\
 
 \ /
  Last update: 2006-08-29 02:19    [W:0.080 / U:0.492 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site