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sched/wait, drivers/media: Convert wait_on_atomic_t() usage to the new wait_var_event() API

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The old wait_on_atomic_t() is going to get removed, use the more
flexible wait_var_event() API instead.

Unlike wake_up_atomic_t(), wake_up_var() will issue the wakeup
even if the variable is not 0.

No change in functionality.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Peter Zijlstra 2018-03-15 11:42:06 +01:00 committed by Ingo Molnar
parent d224985a5e
commit f0baa040f7
1 changed files with 4 additions and 4 deletions
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8
drivers/media/platform/qcom/venus/hfi.c
View file

@ -106,8 +106,8 @@ int hfi_core_deinit(struct venus_core *core, bool blocking)
if (!empty) {
mutex_unlock(&core->lock);
wait_on_atomic_t(&core->insts_count, atomic_t_wait,
TASK_UNINTERRUPTIBLE);
wait_var_event(&core->insts_count,
!atomic_read(&core->insts_count));
mutex_lock(&core->lock);
}
@ -229,8 +229,8 @@ void hfi_session_destroy(struct venus_inst *inst)
mutex_lock(&core->lock);
list_del_init(&inst->list);
atomic_dec(&core->insts_count);
wake_up_atomic_t(&core->insts_count);
if (atomic_dec_and_test(&core->insts_count))
wake_up_var(&core->insts_count);
mutex_unlock(&core->lock);
}
EXPORT_SYMBOL_GPL(hfi_session_destroy);