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sched: Add __releases annotations to affine_move_task()

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affine_move_task() assumes task_rq_lock() has been called and it does
an implicit task_rq_unlock() before returning. Add the appropriate
__releases annotations to make this clear.

A typo error in comment is also fixed.

Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220922180041.1768141-2-longman@redhat.com
This commit is contained in:
Waiman Long 2022-09-22 14:00:37 -04:00 • committed by Peter Zijlstra
parent ad841e569f
commit 5584e8ac2c
1 changed files with 3 additions and 1 deletions
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4
kernel/sched/core.c
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@ -2690,6 +2690,8 @@ void release_user_cpus_ptr(struct task_struct *p)
*/
static int affine_move_task(struct rq *rq, struct task_struct *p, struct rq_flags *rf,
int dest_cpu, unsigned int flags)
__releases(rq->lock)
__releases(p->pi_lock)
{
struct set_affinity_pending my_pending = { }, *pending = NULL;
bool stop_pending, complete = false;
@ -2999,7 +3001,7 @@ err_unlock:
/*
* Restrict the CPU affinity of task @p so that it is a subset of
* task_cpu_possible_mask() and point @p->user_cpu_ptr to a copy of the
* task_cpu_possible_mask() and point @p->user_cpus_ptr to a copy of the
* old affinity mask. If the resulting mask is empty, we warn and walk
* up the cpuset hierarchy until we find a suitable mask.
*/