From: Zhao Jin <cronozhj@gmail.com>
To: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
x86@kernel.org, trivial@kernel.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] x86: trivial: remove unnecessary get_order in free_thread_info
Date: Sat, 20 Aug 2011 21:24:57 +0800 [thread overview]
Message-ID: <4E4FB5A9.700@gmail.com> (raw)
From: Zhao Jin <cronozhj@gmail.com>
Because THREAD_SIZE is defined as PAGE_SIZE << THREAD_ORDER on x86, the
call of get_order(THREAD_SIZE) can be replaced with THREAD_ORDER.
Signed-off-by: Zhao Jin <cronozhj@gmail.com>
---
arch/x86/kernel/process.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index e7e3b01..b9b3b1a 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -49,7 +49,7 @@ void free_thread_xstate(struct task_struct *tsk)
void free_thread_info(struct thread_info *ti)
{
free_thread_xstate(ti->task);
- free_pages((unsigned long)ti, get_order(THREAD_SIZE));
+ free_pages((unsigned long)ti, THREAD_ORDER);
}
void arch_task_cache_init(void)
--
1.7.4.1
next reply other threads:[~2011-08-20 13:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-20 13:24 Zhao Jin [this message]
2011-08-22 22:49 ` [tip:x86/cleanups] x86, mm, trivial: Rmove unnecessary get_order in free_thread_info tip-bot for Zhao Jin
2011-08-23 21:01 ` [tip:x86/cleanups] x86, mm, trivial: Remove unnecessary get_order() in free_thread_info() tip-bot for Zhao Jin
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