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authorHerbert Xu <herbert@gondor.apana.org.au>2005-09-01 17:43:25 -0700
committerDavid S. Miller <davem@davemloft.net>2005-09-01 17:43:25 -0700
commiteb6f1160ddb2fdadf50f350da79d0796c37f17e2 (patch)
treee7b048b089b4b0ec9f121eea9a7f5864999dbac3 /drivers/md/dm-crypt.c
parent64baf3cfea974d2b9e671ccfdbc03e030ea5ebc6 (diff)
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[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>
Diffstat (limited to 'drivers/md/dm-crypt.c')
-rw-r--r--drivers/md/dm-crypt.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index d0a4bab..b82bc31 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -144,7 +144,7 @@ static int crypt_iv_essiv_ctr(struct crypt_config *cc, struct dm_target *ti,
}
/* Hash the cipher key with the given hash algorithm */
- hash_tfm = crypto_alloc_tfm(opts, 0);
+ hash_tfm = crypto_alloc_tfm(opts, CRYPTO_TFM_REQ_MAY_SLEEP);
if (hash_tfm == NULL) {
ti->error = PFX "Error initializing ESSIV hash";
return -EINVAL;
@@ -172,7 +172,8 @@ static int crypt_iv_essiv_ctr(struct crypt_config *cc, struct dm_target *ti,
/* Setup the essiv_tfm with the given salt */
essiv_tfm = crypto_alloc_tfm(crypto_tfm_alg_name(cc->tfm),
- CRYPTO_TFM_MODE_ECB);
+ CRYPTO_TFM_MODE_ECB |
+ CRYPTO_TFM_REQ_MAY_SLEEP);
if (essiv_tfm == NULL) {
ti->error = PFX "Error allocating crypto tfm for ESSIV";
kfree(salt);
@@ -587,7 +588,7 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
goto bad1;
}
- tfm = crypto_alloc_tfm(cipher, crypto_flags);
+ tfm = crypto_alloc_tfm(cipher, crypto_flags | CRYPTO_TFM_REQ_MAY_SLEEP);
if (!tfm) {
ti->error = PFX "Error allocating crypto tfm";
goto bad1;