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authorHerbert Xu <herbert@gondor.apana.org.au>2016-07-12 08:17:56 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2016-07-18 12:35:49 +0300
commit4140139734459db4dffc50dad7b9e21ed79a8dd9 (patch)
tree10195cc22c1bf1c10216a1d1abcf2fe05169c96f /include/crypto/algapi.h
parent85eccddee401ae81067e763516889780b5545160 (diff)
downloadlinux-4140139734459db4dffc50dad7b9e21ed79a8dd9.tar.xz
crypto: api - Optimise away crypto_yield when hard preemption is on
When hard preemption is enabled there is no need to explicitly call crypto_yield. This patch eliminates it if that is the case. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/crypto/algapi.h')
-rw-r--r--include/crypto/algapi.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index 0483f652ac27..8637cdfe382a 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -442,8 +442,10 @@ static inline int crypto_memneq(const void *a, const void *b, size_t size)
static inline void crypto_yield(u32 flags)
{
+#if !defined(CONFIG_PREEMPT) || defined(CONFIG_PREEMPT_VOLUNTARY)
if (flags & CRYPTO_TFM_REQ_MAY_SLEEP)
cond_resched();
+#endif
}
#endif /* _CRYPTO_ALGAPI_H */