From: Chris Wright <chrisw@osdl.org>
To: linux-kernel@vger.kernel.org
Cc: rmk@arm.linux.org.uk, torvalds@osdl.org
Subject: [PATCH 1/13] use cpu_relax() in busy loop
Date: Thu, 18 Sep 2003 16:25:22 -0700 [thread overview]
Message-ID: <20030918162522.E16499@osdlab.pdx.osdl.net> (raw)
Replace busy loop barrier() with cpu_relax().
This is bordering on a gratuitous change given the arm def'n of
cpu_relax(). But I was fixing up other busy loops, and my grep found
this one.
===== drivers/scsi/arm/acornscsi.c 1.35 vs edited =====
--- 1.35/drivers/scsi/arm/acornscsi.c Mon Aug 25 06:37:34 2003
+++ edited/drivers/scsi/arm/acornscsi.c Thu Sep 18 11:48:26 2003
@@ -319,7 +319,7 @@
local_save_flags(flags);
local_irq_enable();
- while (time_before(jiffies, target_jiffies)) barrier();
+ while (time_before(jiffies, target_jiffies)) cpu_relax();
local_irq_restore(flags);
}
next reply other threads:[~2003-09-18 23:25 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-18 23:25 Chris Wright [this message]
2003-09-18 23:27 ` [PATCH 2/13] " Chris Wright
2003-09-18 23:29 ` [PATCH 3/13] " Chris Wright
2003-09-18 23:31 ` [PATCH 4/13] " Chris Wright
2003-09-18 23:33 ` [PATCH 5/13] " Chris Wright
2003-09-18 23:34 ` [PATCH 6/13] " Chris Wright
2003-09-18 23:35 ` [PATCH 7/13] " Chris Wright
2003-09-18 23:36 ` [PATCH 8/13] " Chris Wright
2003-09-18 23:37 ` [PATCH 9/13] " Chris Wright
2003-09-18 23:40 ` [PATCH 10/13] " Chris Wright
2003-09-18 23:41 ` [PATCH 11/13] " Chris Wright
2003-09-18 23:43 ` [PATCH 12/13] " Chris Wright
2003-09-18 23:46 ` [PATCH 13/13] " Chris Wright
2003-09-20 7:37 ` [PATCH 9/13] " David S. Miller
2003-09-19 7:37 ` [PATCH 7/13] " Arjan van de Ven
2003-09-19 19:49 ` Chris Wright
2003-09-19 7:34 ` [PATCH 4/13] " Arjan van de Ven
2003-09-19 19:48 ` Chris Wright
2003-09-19 19:54 ` Arjan van de Ven
2003-09-19 7:33 ` [PATCH 2/13] " Arjan van de Ven
2003-09-19 19:49 ` Chris Wright
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