linux-kernel - [tip:locking/core] locking/mutex: Checking the stamp is WW only

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Message-ID: <tip-63dc47e956b464e0ed3282f6e70974eebf850180@git.kernel.org>
Date:	Wed, 14 Jan 2015 11:18:36 -0800
From:	tip-bot for Davidlohr Bueso <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, hpa@...or.com, mingo@...nel.org,
	peterz@...radead.org, paulmck@...ux.vnet.ibm.com,
	tglx@...utronix.de, dave@...olabs.net, dbueso@...e.de,
	linux-kernel@...r.kernel.org
Subject: [tip:locking/core] locking/mutex: Checking the stamp is WW only

Commit-ID:  63dc47e956b464e0ed3282f6e70974eebf850180
Gitweb:     http://git.kernel.org/tip/63dc47e956b464e0ed3282f6e70974eebf850180
Author:     Davidlohr Bueso <dave@...olabs.net>
AuthorDate: Tue, 6 Jan 2015 11:45:04 -0800
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Wed, 14 Jan 2015 15:07:21 +0100

locking/mutex: Checking the stamp is WW only

Mark it so by renaming __mutex_lock_check_stamp().

Signed-off-by: Davidlohr Bueso <dbueso@...e.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Cc: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Link: http://lkml.kernel.org/r/1420573509-24774-2-git-send-email-dave@stgolabs.net
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 kernel/locking/mutex.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
index 4541951..b042ea5 100644
--- a/kernel/locking/mutex.c
+++ b/kernel/locking/mutex.c
@@ -469,7 +469,7 @@ void __sched ww_mutex_unlock(struct ww_mutex *lock)
 EXPORT_SYMBOL(ww_mutex_unlock);
 
 static inline int __sched
-__mutex_lock_check_stamp(struct mutex *lock, struct ww_acquire_ctx *ctx)
+__ww_mutex_lock_check_stamp(struct mutex *lock, struct ww_acquire_ctx *ctx)
 {
 	struct ww_mutex *ww = container_of(lock, struct ww_mutex, base);
 	struct ww_acquire_ctx *hold_ctx = ACCESS_ONCE(ww->ctx);
@@ -557,7 +557,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
 		}
 
 		if (use_ww_ctx && ww_ctx->acquired > 0) {
-			ret = __mutex_lock_check_stamp(lock, ww_ctx);
+			ret = __ww_mutex_lock_check_stamp(lock, ww_ctx);
 			if (ret)
 				goto err;
 		}
--
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