[PATCH 3/3] crypto: Uses kcrypto_wq instead of keventd_wq inchainiv

[Huang Ying]

keventd_wq has potential starvation problem, so use dedicated
kcrypto_wq instead.

Signed-off-by: Huang Ying <ying.huang@xxxxxxxxx>

---
 crypto/Kconfig   |    1 +
 crypto/chainiv.c |    3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -56,6 +56,7 @@ config CRYPTO_BLKCIPHER2
 	tristate
 	select CRYPTO_ALGAPI2
 	select CRYPTO_RNG2
+	select CRYPTO_WORKQUEUE
 
 config CRYPTO_HASH
 	tristate
--- a/crypto/chainiv.c
+++ b/crypto/chainiv.c
@@ -15,6 +15,7 @@
 
 #include <crypto/internal/skcipher.h>
 #include <crypto/rng.h>
+#include <crypto/crypto_wq.h>
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -133,7 +134,7 @@ static int async_chainiv_schedule_work(s
 			goto out;
 	}
 
-	queued = schedule_work(&ctx->postponed);
+	queued = queue_work(kcrypto_wq, &ctx->postponed);
 	BUG_ON(!queued);
 
 out:

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