linux-kernel - [tip:x86/asmlinkage] asmlinkage: Mark rwsem functions that can be called from assembler asmlinkage

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Date:	Thu, 13 Feb 2014 19:59:16 -0800
From:	tip-bot for Andi Kleen <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
	ak@...ux.intel.com, tglx@...utronix.de, hpa@...ux.intel.com
Subject: [tip:x86/asmlinkage] asmlinkage:
  Mark rwsem functions that can be called from assembler asmlinkage

Commit-ID:  3ebae4f3a2e746ae17f25c741e249294e7d6d7c2
Gitweb:     http://git.kernel.org/tip/3ebae4f3a2e746ae17f25c741e249294e7d6d7c2
Author:     Andi Kleen <ak@...ux.intel.com>
AuthorDate: Sat, 8 Feb 2014 08:52:05 +0100
Committer:  H. Peter Anvin <hpa@...ux.intel.com>
CommitDate: Thu, 13 Feb 2014 18:13:37 -0800

asmlinkage: Mark rwsem functions that can be called from assembler asmlinkage

Mark the rwsem functions that can be called from assembler asmlinkage.

Signed-off-by: Andi Kleen <ak@...ux.intel.com>
Link: http://lkml.kernel.org/r/1391845930-28580-9-git-send-email-ak@linux.intel.com
Signed-off-by: H. Peter Anvin <hpa@...ux.intel.com>
---
 kernel/locking/rwsem-xadd.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/kernel/locking/rwsem-xadd.c b/kernel/locking/rwsem-xadd.c
index 19c5fa9..1d66e08 100644
--- a/kernel/locking/rwsem-xadd.c
+++ b/kernel/locking/rwsem-xadd.c
@@ -143,6 +143,7 @@ __rwsem_do_wake(struct rw_semaphore *sem, enum rwsem_wake_type wake_type)
 /*
  * wait for the read lock to be granted
  */
+__visible
 struct rw_semaphore __sched *rwsem_down_read_failed(struct rw_semaphore *sem)
 {
 	long count, adjustment = -RWSEM_ACTIVE_READ_BIAS;
@@ -190,6 +191,7 @@ struct rw_semaphore __sched *rwsem_down_read_failed(struct rw_semaphore *sem)
 /*
  * wait until we successfully acquire the write lock
  */
+__visible
 struct rw_semaphore __sched *rwsem_down_write_failed(struct rw_semaphore *sem)
 {
 	long count, adjustment = -RWSEM_ACTIVE_WRITE_BIAS;
@@ -252,6 +254,7 @@ struct rw_semaphore __sched *rwsem_down_write_failed(struct rw_semaphore *sem)
  * handle waking up a waiter on the semaphore
  * - up_read/up_write has decremented the active part of count if we come here
  */
+__visible
 struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem)
 {
 	unsigned long flags;
@@ -272,6 +275,7 @@ struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem)
  * - caller incremented waiting part of count and discovered it still negative
  * - just wake up any readers at the front of the queue
  */
+__visible
 struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *sem)
 {
 	unsigned long flags;
--
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