From: Andi Kleen <andi@firstfloor.org>
To: linux-kernel@vger.kernel.org
Cc: x86@kernel.org, torvalds@linux-foundation.org,
Andi Kleen <ak@linux.intel.com>
Subject: [PATCH 6/8] Add might_fault_debug_only()
Date: Tue, 13 Aug 2013 17:07:14 -0700 [thread overview]
Message-ID: <1376438836-13339-7-git-send-email-andi@firstfloor.org> (raw)
In-Reply-To: <1376438836-13339-1-git-send-email-andi@firstfloor.org>
From: Andi Kleen <ak@linux.intel.com>
Add a might_fault_debug_only() that only does something in the PROVE_LOCKING
case, but does not cond_resched for PREEMPT_VOLUNTARY. This is for
cases when the cond_resched is done elsewhere
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
include/linux/sched.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 773f21d..bb7a08a 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2473,11 +2473,13 @@ static inline void cond_resched_rcu(void)
#ifdef CONFIG_PROVE_LOCKING
void might_fault(void);
+#define might_fault_debug_only() might_fault()
#else
static inline void might_fault(void)
{
might_sleep();
}
+#define might_fault_debug_only() do {} while(0)
#endif
/*
--
1.8.3.1
next prev parent reply other threads:[~2013-08-14 0:07 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-14 0:07 Re-tune x86 uaccess code for PREEMPT_VOLUNTARY v2 Andi Kleen
2013-08-14 0:07 ` [PATCH 1/8] x86: Add 1/2/4/8 byte optimization to 64bit __copy_{from,to}_user_inatomic Andi Kleen
2013-08-14 0:17 ` Linus Torvalds
2013-08-14 0:07 ` [PATCH 2/8] x86: Include linux/sched.h in asm/uaccess.h Andi Kleen
2013-08-14 0:07 ` [PATCH 3/8] tree-sweep: Include linux/sched.h for might_sleep users Andi Kleen
2013-08-14 0:07 ` [PATCH 4/8] Move might_sleep and friends from kernel.h to sched.h Andi Kleen
2013-08-14 0:07 ` [PATCH 5/8] sched: mark should_resched() __always_inline Andi Kleen
2013-08-14 0:07 ` Andi Kleen [this message]
2013-08-14 0:07 ` [PATCH 7/8] x86: Remove cond_resched() from uaccess code Andi Kleen
2013-08-14 0:07 ` [PATCH 8/8] sched: Inline the need_resched test into the caller for _cond_resched Andi Kleen
2013-08-14 9:56 ` Re-tune x86 uaccess code for PREEMPT_VOLUNTARY v2 Ingo Molnar
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