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@codeaurora.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: mingo@redhat.com
Cc: will@kernel.org
Link: https://lkml.kernel.org/r/1564585504-3543-2-git-send-email-mojha@codeaurora.org

diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
index ac4929f1e085e7dd4fcb4bc455a7b936b4420289..b4bcb0236d7a15297d425648fdbf598bf8ffc684 100644 (file)
--- a/kernel/locking/mutex.c
+++ b/kernel/locking/mutex.c
@@ -85,7 +85,7 @@ EXPORT_SYMBOL(__mutex_init);
  */
 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)