linux-kernel - [PATCH 2/2 v3] locking/mutex: Use mutex flags macro instead of hard code

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Date:   Wed, 31 Jul 2019 20:35:04 +0530
From:   Mukesh Ojha <mojha@...eaurora.org>
To:     peterz@...radead.org, mingo@...hat.com, will@...nel.org,
        linux-kernel@...r.kernel.org
Cc:     Mukesh Ojha <mojha@...eaurora.org>
Subject: [PATCH 2/2 v3] locking/mutex: Use mutex flags macro instead of hard code

Use the mutex flag macro instead of hard code value inside
__mutex_owner().

Signed-off-by: Mukesh Ojha <mojha@...eaurora.org>
---
Changes in v3:
 - no change.

Changes in v2:
 - Framed the commit according the changes done in 1/2 of
   the patchset.

 kernel/locking/mutex.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
index ac4929f..b4bcb02 100644
--- a/kernel/locking/mutex.c
+++ b/kernel/locking/mutex.c
@@ -85,7 +85,7 @@ struct mutex_waiter {
  */
 static inline struct task_struct *__mutex_owner(struct mutex *lock)
 {
-	return (struct task_struct *)(atomic_long_read(&lock->owner) & ~0x07);
+	return (struct task_struct *)(atomic_long_read(&lock->owner) & ~MUTEX_FLAGS);
 }
 
 static inline struct task_struct *__owner_task(unsigned long owner)
-- 
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