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Commit 3ebae4f3 authored by Andi Kleen's avatar Andi Kleen Committed by H. Peter Anvin
Browse files

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: default avatarAndi Kleen <ak@linux.intel.com>
Link: http://lkml.kernel.org/r/1391845930-28580-9-git-send-email-ak@linux.intel.com


Signed-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
parent 00b71030

kernel/locking/rwsem-xadd.c

+4 −0
Original line number Diff line number Diff line
@@ -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;