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(parent: b857174) | patch
locking/semaphore: Add might_sleep() to down_*() family
authorXiaoming Ni <nixiaoming@huawei.com>
Mon, 9 Aug 2021 02:12:15 +0000 (10:12 +0800)
committerPeter Zijlstra <peterz@infradead.org>
Fri, 20 Aug 2021 10:33:17 +0000 (12:33 +0200)
commit99409b935c9ac5ea36ab5218954115c52449234d
tree0f2769c63640eecc5f5fd236202b5eb2fdc2f38btree | snapshot
parentb857174e68e26f9c4f0796971e11eb63ad5a3eb6commit | diff
locking/semaphore: Add might_sleep() to down_*() family

Semaphore is sleeping lock. Add might_sleep() to down*() family
(with exception of down_trylock()) to detect atomic context sleep.

Signed-off-by: Xiaoming Ni <nixiaoming@huawei.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20210809021215.19991-1-nixiaoming@huawei.com
kernel/locking/semaphore.c diff | blob | history
Domain: System / Kernel;