From: Nicholas Mc Guire <der.herr@hofr.at>
To: linux-rt-users@vger.kernel.org
Subject: [PATCH 4/4] migrate_disable pushd down in rt_write_trylock_irqsave
Date: Sat, 30 Nov 2013 04:08:15 +0100 [thread overview]
Message-ID: <20131130030815.GE8101@opentech.at> (raw)
>From 7b60d163555d701b88f463d12ba62c6ceb61fb66 Mon Sep 17 00:00:00 2001
From: Nicholas Mc Guire <der.herr@hofr.at>
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 <der.herr@hofr.at>
---
kernel/rt.c | 5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/kernel/rt.c b/kernel/rt.c
index 75372f0..ce44afc 100644
--- a/kernel/rt.c
+++ b/kernel/rt.c
@@ -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);
--
1.7.2.5
reply other threads:[~2013-11-30 3:08 UTC|newest]
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