[CRYPTO]: Use CRYPTO_TFM_REQ_MAY_SLEEP where appropriate

This patch goes through the current users of the crypto layer and sets
CRYPTO_TFM_REQ_MAY_SLEEP at crypto_alloc_tfm() where all crypto operations
are performed in process context.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/security/seclvl.c b/security/seclvl.c
index c8e87b2..96b1f21 100644
--- a/security/seclvl.c
+++ b/security/seclvl.c
@@ -321,7 +321,7 @@
 			      "bytes.\n", len, PAGE_SIZE);
 		return -ENOMEM;
 	}
-	tfm = crypto_alloc_tfm("sha1", 0);
+	tfm = crypto_alloc_tfm("sha1", CRYPTO_TFM_REQ_MAY_SLEEP);
 	if (tfm == NULL) {
 		seclvl_printk(0, KERN_ERR,
 			      "Failed to load transform for SHA1\n");