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locking: Add __sched to semaphore functions

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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: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220909000803.4181857-1-namhyung@kernel.org
This commit is contained in:
Namhyung Kim 2022-09-08 17:08:03 -07:00 committed by Peter Zijlstra
parent 48dfb5d256
commit 0d97db0265
1 changed files with 6 additions and 6 deletions
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12
kernel/locking/semaphore.c
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@ -51,7 +51,7 @@ static noinline void __up(struct semaphore *sem);
* Use of this function is deprecated, please use down_interruptible() or * Use of this function is deprecated, please use down_interruptible() or
* down_killable() instead. * down_killable() instead.
*/ */
void down(struct semaphore *sem) void __sched down(struct semaphore *sem)
{ {
unsigned long flags; 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 sleep is interrupted by a signal, this function will return -EINTR.
* If the semaphore is successfully acquired, this function returns 0. * 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; unsigned long flags;
int result = 0; int result = 0;
@ -101,7 +101,7 @@ EXPORT_SYMBOL(down_interruptible);
* -EINTR. If the semaphore is successfully acquired, this function returns * -EINTR. If the semaphore is successfully acquired, this function returns
* 0. * 0.
*/ */
int down_killable(struct semaphore *sem) int __sched down_killable(struct semaphore *sem)
{ {
unsigned long flags; unsigned long flags;
int result = 0; int result = 0;
@ -131,7 +131,7 @@ EXPORT_SYMBOL(down_killable);
* Unlike mutex_trylock, this function can be used from interrupt context, * Unlike mutex_trylock, this function can be used from interrupt context,
* and the semaphore can be released by any task or interrupt. * 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; unsigned long flags;
int count; int count;
@ -156,7 +156,7 @@ EXPORT_SYMBOL(down_trylock);
* If the semaphore is not released within the specified number of jiffies, * If the semaphore is not released within the specified number of jiffies,
* this function returns -ETIME. It returns 0 if the semaphore was acquired. * 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; unsigned long flags;
int result = 0; int result = 0;
@ -180,7 +180,7 @@ EXPORT_SYMBOL(down_timeout);
* Release the semaphore. Unlike mutexes, up() may be called from any * Release the semaphore. Unlike mutexes, up() may be called from any
* context and even by tasks which have never called down(). * context and even by tasks which have never called down().
*/ */
void up(struct semaphore *sem) void __sched up(struct semaphore *sem)
{ {
unsigned long flags; unsigned long flags;