linux-kernel - [tip:perfcounters/urgent] x86: atomic64: Clean up atomic64_sub_and_test() and atomic64_add

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Date:	Fri, 3 Jul 2009 19:18:32 GMT
From:	tip-bot for Ingo Molnar <mingo@...e.hu>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, acme@...hat.com, paulus@...ba.org,
	hpa@...or.com, mingo@...hat.com, eric.dumazet@...il.com,
	a.p.zijlstra@...llo.nl, torvalds@...ux-foundation.org,
	efault@....de, arnd@...db.de, dhowells@...hat.com,
	fweisbec@...il.com, akpm@...ux-foundation.org, tglx@...utronix.de,
	mingo@...e.hu
Subject: [tip:perfcounters/urgent] x86: atomic64: Clean up atomic64_sub_and_test() and atomic64_add_negative()

Commit-ID:  ddf9a003d32f720805ac30bcc15755e9289073de
Gitweb:     http://git.kernel.org/tip/ddf9a003d32f720805ac30bcc15755e9289073de
Author:     Ingo Molnar <mingo@...e.hu>
AuthorDate: Fri, 3 Jul 2009 20:11:30 +0200
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Fri, 3 Jul 2009 21:15:08 +0200

x86: atomic64: Clean up atomic64_sub_and_test() and atomic64_add_negative()

Linus noticed that the variable name 'old_val' is
confusingly named in these functions - the correct
naming is 'new_val'.

Reported-by: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Eric Dumazet <eric.dumazet@...il.com>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Mike Galbraith <efault@....de>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: David Howells <dhowells@...hat.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Arnd Bergmann <arnd@...db.de>
LKML-Reference: <alpine.LFD.2.01.0907030942260.3210@...alhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@...e.hu>


---
 arch/x86/lib/atomic64_32.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/lib/atomic64_32.c b/arch/x86/lib/atomic64_32.c
index a804f96..1d98c9e 100644
--- a/arch/x86/lib/atomic64_32.c
+++ b/arch/x86/lib/atomic64_32.c
@@ -175,9 +175,9 @@ EXPORT_SYMBOL(atomic64_sub);
  */
 int atomic64_sub_and_test(u64 delta, atomic64_t *ptr)
 {
-	u64 old_val = atomic64_sub_return(delta, ptr);
+	u64 new_val = atomic64_sub_return(delta, ptr);
 
-	return old_val == 0;
+	return new_val == 0;
 }
 EXPORT_SYMBOL(atomic64_sub_and_test);
 
@@ -244,8 +244,8 @@ EXPORT_SYMBOL(atomic64_inc_and_test);
  */
 int atomic64_add_negative(u64 delta, atomic64_t *ptr)
 {
-	long long old_val = atomic64_add_return(delta, ptr);
+	s64 new_val = atomic64_add_return(delta, ptr);
 
-	return old_val < 0;
+	return new_val < 0;
 }
 EXPORT_SYMBOL(atomic64_add_negative);
--
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