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Commit 08346170 authored by Geliang Tang's avatar Geliang Tang Committed by Herbert Xu
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crypto: mcryptd - use list_first_entry_or_null() 



Simplify mcryptd_opportunistic_flush() with list_first_entry_or_null().

Signed-off-by: default avatarGeliang Tang <geliangtang@163.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 304e4818

crypto/mcryptd.c

+2 −6
Original line number Original line Diff line number Diff line
@@ -128,13 +128,9 @@ static void mcryptd_opportunistic_flush(void) 
	flist = per_cpu_ptr(mcryptd_flist, smp_processor_id());

	flist = per_cpu_ptr(mcryptd_flist, smp_processor_id());

	while (single_task_running()) {

	while (single_task_running()) {

		mutex_lock(&flist->lock);

		mutex_lock(&flist->lock);

		if (list_empty(&flist->list)) {

		cstate = list_first_entry_or_null(&flist->list,

			mutex_unlock(&flist->lock);

			return;

		}

		cstate = list_entry(flist->list.next,

				struct mcryptd_alg_cstate, flush_list);

				struct mcryptd_alg_cstate, flush_list);

		if (!cstate->flusher_engaged) {

		if (!cstate || !cstate->flusher_engaged) {

			mutex_unlock(&flist->lock);

			mutex_unlock(&flist->lock);

			return;

			return;

		}

		}