Commit 0d97db02 authored by Namhyung Kim's avatar Namhyung Kim Committed by Peter Zijlstra
Browse files

locking: Add __sched to semaphore functions 



The internal functions are marked with __sched already, let's do the same
for external functions too so that we can skip them in the stack trace.

Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220909000803.4181857-1-namhyung@kernel.org
parent 48dfb5d2

kernel/locking/semaphore.c

+6 −6
Original line number Diff line number Diff line
@@ -51,7 +51,7 @@ static noinline void __up(struct semaphore *sem); 
 * Use of this function is deprecated, please use down_interruptible() or

 * down_killable() instead.

 */

void down(struct semaphore *sem)

void __sched down(struct semaphore *sem)

{

	unsigned long flags;
@@ -74,7 +74,7 @@ EXPORT_SYMBOL(down); 
 * If the sleep is interrupted by a signal, this function will return -EINTR.

 * If the semaphore is successfully acquired, this function returns 0.

 */

int down_interruptible(struct semaphore *sem)

int __sched down_interruptible(struct semaphore *sem)

{

	unsigned long flags;

	int result = 0;
@@ -101,7 +101,7 @@ EXPORT_SYMBOL(down_interruptible); 
 * -EINTR.  If the semaphore is successfully acquired, this function returns

 * 0.

 */

int down_killable(struct semaphore *sem)

int __sched down_killable(struct semaphore *sem)

{

	unsigned long flags;

	int result = 0;
@@ -131,7 +131,7 @@ EXPORT_SYMBOL(down_killable); 
 * Unlike mutex_trylock, this function can be used from interrupt context,

 * and the semaphore can be released by any task or interrupt.

 */

int down_trylock(struct semaphore *sem)

int __sched down_trylock(struct semaphore *sem)

{

	unsigned long flags;

	int count;
@@ -156,7 +156,7 @@ EXPORT_SYMBOL(down_trylock); 
 * If the semaphore is not released within the specified number of jiffies,

 * this function returns -ETIME.  It returns 0 if the semaphore was acquired.

 */

int down_timeout(struct semaphore *sem, long timeout)

int __sched down_timeout(struct semaphore *sem, long timeout)

{

	unsigned long flags;

	int result = 0;
@@ -180,7 +180,7 @@ EXPORT_SYMBOL(down_timeout); 
 * Release the semaphore.  Unlike mutexes, up() may be called from any

 * context and even by tasks which have never called down().

 */

void up(struct semaphore *sem)

void __sched up(struct semaphore *sem)

{

	unsigned long flags;