From: Paul Jackson <pj@sgi.com>
To: linux-kernel@vger.kernel.org
Cc: mbligh@aracnet.com, akpm@osdl.org, wli@holomorphy.com,
haveblue@us.ibm.com, colpatch@us.ibm.com
Subject: [PATCH] mask ADT: simplify i386/mach-es7000 cpumask use [18/22]
Date: Mon, 29 Mar 2004 04:16:10 -0800 [thread overview]
Message-ID: <20040329041610.45510cf5.pj@sgi.com> (raw)
Patch_18_of_22 - Optimize i386 cpumask macro usage.
Optimize a bit of cpumask code for asm-i386/mach-es7000
Code untested, unreviewed. Feedback welcome.
diffstat Patch_18_of_22:
mach_ipi.h | 5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
# This is a BitKeeper generated patch for the following project:
# Project Name: Linux kernel tree
# This patch format is intended for GNU patch command version 2.5 or higher.
# This patch includes the following deltas:
# ChangeSet 1.1724 -> 1.1725
# include/asm-i386/mach-es7000/mach_ipi.h 1.2 -> 1.3
#
# The following is the BitKeeper ChangeSet Log
# --------------------------------------------
# 04/03/29 pj@sgi.com 1.1725
# Optimize i386 cpumask macro usage. Code untested and unreviewed.
# Feedback welcome.
# --------------------------------------------
#
diff -Nru a/include/asm-i386/mach-es7000/mach_ipi.h b/include/asm-i386/mach-es7000/mach_ipi.h
--- a/include/asm-i386/mach-es7000/mach_ipi.h Mon Mar 29 01:04:03 2004
+++ b/include/asm-i386/mach-es7000/mach_ipi.h Mon Mar 29 01:04:03 2004
@@ -10,9 +10,8 @@
static inline void send_IPI_allbutself(int vector)
{
- cpumask_t mask = cpumask_of_cpu(smp_processor_id());
- cpus_complement(mask);
- cpus_and(mask, mask, cpu_online_map);
+ cpumask_t mask = cpu_online_map;
+ cpu_clear(smp_processor_id(), mask);
if (!cpus_empty(mask))
send_IPI_mask(mask, vector);
}
--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <pj@sgi.com> 1.650.933.1373
reply other threads:[~2004-03-29 12:59 UTC|newest]
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