From: Russell King <rmk@arm.linux.org.uk>
To: linux-kernel@vger.kernel.org
Subject: [PATCH] Alan says this needs fixing... (timer/cpu_relax)
Date: Sun, 21 Jul 2002 23:51:54 +0100 [thread overview]
Message-ID: <20020721235154.M26376@flint.arm.linux.org.uk> (raw)
While looking at some stuff, I noticed the following. Alan confirmed
that this patch is probably a good idea...
--- orig/kernel/timer.c Sun Jul 7 23:21:28 2002
+++ linux/kernel/timer.c Sun Jul 21 23:50:17 2002
@@ -176,7 +176,7 @@
#define timer_enter(t) do { running_timer = t; mb(); } while (0)
#define timer_exit() do { running_timer = NULL; } while (0)
#define timer_is_running(t) (running_timer == t)
-#define timer_synchronize(t) while (timer_is_running(t)) barrier()
+#define timer_synchronize(t) while (timer_is_running(t)) cpu_relax()
#else
#define timer_enter(t) do { } while (0)
#define timer_exit() do { } while (0)
--
Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux
http://www.arm.linux.org.uk/personal/aboutme.html
next reply other threads:[~2002-07-21 22:48 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-21 22:51 Russell King [this message]
2002-07-22 0:54 ` [PATCH] Alan says this needs fixing... (timer/cpu_relax) Alan Cox
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20020721235154.M26376@flint.arm.linux.org.uk \
--to=rmk@arm.linux.org.uk \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.