From: Brian Gerst <brgerst@gmail.com>
To: tj@kernel.org
Cc: x86@kernel.org, linux-kernel@vger.kernel.org
Subject: PATCH [0/2] percpu: Local cpu pointer optimizations
Date: Tue, 7 Sep 2010 07:41:08 -0400 [thread overview]
Message-ID: <1283859670-6687-1-git-send-email-brgerst@gmail.com> (raw)
This patch set allows arches to provide an optimized way of shifting
a per-cpu pointer for the current cpu.
On an x86-32 defconfig build, these patches save 1304 bytes of text.
text data bss dec hex filename
7298335 717480 1374104 9389919 8f475f vmlinux.orig
7297283 717480 1374104 9388867 8f4343 vmlinux.1
7297031 717480 1374104 9388615 8f4247 vmlinux.2
[PATCH 1/2] x86, percpu: Optimize this_cpu_ptr
[PATCH 2/2] percpu: Optimize __get_cpu_var()
arch/x86/include/asm/percpu.h | 11 +++++++++++
include/asm-generic/percpu.h | 14 +++++++++-----
2 files changed, 20 insertions(+), 5 deletions(-)
v2: Added comments
next reply other threads:[~2010-09-07 11:41 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-07 11:41 Brian Gerst [this message]
2010-09-07 11:41 ` [PATCH 1/2] x86, percpu: Optimize this_cpu_ptr Brian Gerst
2010-09-09 16:19 ` [PATCH UPDATED " Tejun Heo
2010-09-07 11:41 ` [PATCH 2/2] percpu: Optimize __get_cpu_var() Brian Gerst
-- strict thread matches above, loose matches on Subject: below --
2010-09-04 17:21 PATCH [0/2] percpu: Local cpu pointer optimizations Brian Gerst
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