Messages in this thread Patch in this message | | | Date | Sat, 03 Nov 2012 00:01:24 +0800 | From | Shan Wei <> | Subject | [PATCH v2 3/9] net: xfrm: use __this_cpu_read per-cpu helper |
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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
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