From: Corey Minyard <minyard@acm.org>
To: Linux Kernel <linux-kernel@vger.kernel.org>
Cc: Andrew Morton <akpm@osdl.org>,
OpenIPMI Developers <openipmi-developer@lists.sourceforge.net>
Subject: [PATCH 1/4] IPMI: Change barrier to cpu_relax in poweroff code
Date: Thu, 14 Feb 2008 12:26:38 -0600 [thread overview]
Message-ID: <20080214182638.GA20148@minyard.local> (raw)
From: Corey Minyard <cminyard@mvista.com>
Change a barrier to cpu_relax(), which is more appropriate for a
polling loop.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
Index: linux-2.6.24/drivers/char/ipmi/ipmi_poweroff.c
===================================================================
--- linux-2.6.24.orig/drivers/char/ipmi/ipmi_poweroff.c
+++ linux-2.6.24/drivers/char/ipmi/ipmi_poweroff.c
@@ -175,7 +175,7 @@ static int ipmi_request_in_rc_mode(ipmi_
*/
while (atomic_read(&dummy_count) > 0) {
ipmi_poll_interface(user);
- barrier();
+ cpu_relax();
}
return halt_recv_msg.msg.data[0];
reply other threads:[~2008-02-14 18:38 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=20080214182638.GA20148@minyard.local \
--to=minyard@acm.org \
--cc=akpm@osdl.org \
--cc=linux-kernel@vger.kernel.org \
--cc=openipmi-developer@lists.sourceforge.net \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox