* [PATCH v2 3/9] net: xfrm: use __this_cpu_read per-cpu helper
@ 2012-11-02 16:01 Shan Wei
0 siblings, 0 replies; only message in thread
From: Shan Wei @ 2012-11-02 16:01 UTC (permalink / raw)
To: steffen.klassert, David Miller, NetDev, Herbert Xu,
Kernel-Maillist, cl
From: Shan Wei <davidshan@tencent.com>
Signed-off-by: Shan Wei <davidshan@tencent.com>
---
net/xfrm/xfrm_ipcomp.c | 7 +++----
1 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/net/xfrm/xfrm_ipcomp.c b/net/xfrm/xfrm_ipcomp.c
index e5246fb..394d672 100644
--- a/net/xfrm/xfrm_ipcomp.c
+++ b/net/xfrm/xfrm_ipcomp.c
@@ -276,14 +276,13 @@ static struct crypto_comp * __percpu *ipcomp_alloc_tfms(const char *alg_name)
struct crypto_comp * __percpu *tfms;
int cpu;
- /* This can be any valid CPU ID so we don't need locking. */
- cpu = raw_smp_processor_id();
-
list_for_each_entry(pos, &ipcomp_tfms_list, list) {
struct crypto_comp *tfm;
tfms = pos->tfms;
- tfm = *per_cpu_ptr(tfms, cpu);
+
+ /* This can be any valid CPU ID so we don't need locking. */
+ tfm = __this_cpu_read(tfms);
if (!strcmp(crypto_comp_name(tfm), alg_name)) {
pos->users++;
--
1.7.1
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2012-11-02 16:01 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-11-02 16:01 [PATCH v2 3/9] net: xfrm: use __this_cpu_read per-cpu helper Shan Wei
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox