From: Chuck Ebbert <76306.1226@compuserve.com>
Date: Fri, 29 Sep 2006 08:59:14 +0000 (-0700)
Subject: [PATCH] spinlock_debug: don't recompute (jiffies_per_loop * HZ) in spinloop
X-Git-Tag: v2.6.19-rc1~818
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c22f008ba226e2ff25ee1a56abd9c5fd355828fc;p=pandora-kernel.git

[PATCH] spinlock_debug: don't recompute (jiffies_per_loop * HZ) in spinloop

In spinlock_debug.c, the spinloops call __delay() on every iteration.
Because that is an external function, (jiffies_per_loop * HZ), the loop's
iteration limit, gets recomputed every time.  Caching it explicitly
prevents that.

Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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