migrate_disable pushd down in rt_write_trylock_irqsave

PATCH In review Nicholas Mc Guire 1 participant 1 message Nov 30, 2013

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Nicholas Mc Guire

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2013-11-30 03:08 UTC #0 lore raw

PATCH 4/4 migrate_disable pushd down in rt_write_trylock_irqsave

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From 7b60d163555d701b88f463d12ba62c6ceb61fb66 Mon Sep 17 00:00:00 2001

From: Nicholas Mc Guire <[email protected]>
Date: Fri, 29 Nov 2013 00:21:59 -0500
Subject: [PATCH 4/4] migrate_disable pushd down in rt_write_trylock_irqsave

Signed-off-by Nicholas Mc Guire <[email protected]>

---
 kernel/rt.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

kernel/rt.c +2 -3

index 75372f0..ce44afc 100644
@@ -196,10 +196,9 @@ int __lockfunc rt_write_trylock_irqsave(rwlock_t *rwlock, unsigned long *flags)
 	int ret;
 
 	*flags = 0;
-	migrate_disable();
 	ret = rt_write_trylock(rwlock);
-	if (!ret)
-		migrate_enable();
+	if (ret)
+		migrate_disable();
 	return ret;
 }
 EXPORT_SYMBOL(rt_write_trylock_irqsave);

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1.7.2.5