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crypto: mcryptd - use list_first_entry_or_null()
author
Geliang Tang
<geliangtang@163.com>
Mon, 16 Nov 2015 14:37:15 +0000
(22:37 +0800)
committer
Herbert Xu
<herbert@gondor.apana.org.au>
Mon, 23 Nov 2015 12:55:51 +0000
(20:55 +0800)
Simplify mcryptd_opportunistic_flush() with list_first_entry_or_null().
Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto/mcryptd.c
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diff --git
a/crypto/mcryptd.c
b/crypto/mcryptd.c
index fe5b495a434d3c1d5efc2e5b211c7d3863078726..f78d4fc4e38a3fb842463229b3fa013d7c0a903c 100644
(file)
--- a/
crypto/mcryptd.c
+++ b/
crypto/mcryptd.c
@@
-128,13
+128,9
@@
static void mcryptd_opportunistic_flush(void)
flist = per_cpu_ptr(mcryptd_flist, smp_processor_id());
while (single_task_running()) {
mutex_lock(&flist->lock);
- if (list_empty(&flist->list)) {
- mutex_unlock(&flist->lock);
- return;
- }
- cstate = list_entry(flist->list.next,
+ cstate = list_first_entry_or_null(&flist->list,
struct mcryptd_alg_cstate, flush_list);
- if (!cstate->flusher_engaged) {
+ if (!cstate
|| !cstate
->flusher_engaged) {
mutex_unlock(&flist->lock);
return;
}