linux-kernel - [PATCH peterz-queue:locking/core 1/2] locking/rwsem: Fix building with opt spinning and new osq

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Date:	Fri, 11 Jul 2014 14:00:05 -0700
From:	Davidlohr Bueso <davidlohr@...com>
To:	a.p.zijlstra@...llo.nl
Cc:	mingo@...nel.org, jason.low2@...com, davidlohr@...com,
	aswin@...com, linux-kernel@...r.kernel.org
Subject: [PATCH peterz-queue:locking/core 1/2] locking/rwsem: Fix building with opt spinning and new osq_lock header

Commit 'rwsem: Reduce the size of struct rw_semaphore' broke all
DECLARE_RWSEM users, ie:

init/init_task.c:14:44: error: ‘OSQ_UNLOCKED_VA’ undeclared here (not in a function)

Signed-off-by: Davidlohr Bueso <davidlohr@...com>
---
 include/linux/rwsem.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h
index 0eff99c..5d40884 100644
--- a/include/linux/rwsem.h
+++ b/include/linux/rwsem.h
@@ -64,7 +64,7 @@ static inline int rwsem_is_locked(struct rw_semaphore *sem)
 #endif
 
 #if defined(CONFIG_SMP) && !defined(CONFIG_RWSEM_GENERIC_SPINLOCK)
-#define __RWSEM_OPT_INIT(lockname)	, .owner = NULL, .osq = { ATOMIC_INIT(OQS_UNLOCKED_VAL) }
+#define __RWSEM_OPT_INIT(lockname)	, .owner = NULL, .osq = { ATOMIC_INIT(OSQ_UNLOCKED_VAL) }
 #else
 #define __RWSEM_OPT_INIT(lockname)
 #endif
-- 
1.8.1.4

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