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authorHerbert Xu <herbert@gondor.apana.org.au>2005-09-01 20:43:05 -0400
committerDavid S. Miller <davem@davemloft.net>2005-09-01 20:43:05 -0400
commit64baf3cfea974d2b9e671ccfdbc03e030ea5ebc6 (patch)
tree2bae23bf3d7378ba2d60be8aee6b0178d1d9c721 /include/linux/crypto.h
parentfb4f10ed50f01b0f953068456bfb6e2885921b01 (diff)
[CRYPTO]: Added CRYPTO_TFM_REQ_MAY_SLEEP flag
The crypto layer currently uses in_atomic() to determine whether it is allowed to sleep. This is incorrect since spin locks don't always cause in_atomic() to return true. Instead of that, this patch returns to an earlier idea of a per-tfm flag which determines whether sleeping is allowed. Unlike the earlier version, the default is to not allow sleeping. This ensures that no existing code can break. As usual, this flag may either be set through crypto_alloc_tfm(), or just before a specific crypto operation. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/crypto.h')
-rw-r--r--include/linux/crypto.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index 5e2bcc636a02..3c89df6e7768 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -45,6 +45,7 @@
45#define CRYPTO_TFM_MODE_CTR 0x00000008 45#define CRYPTO_TFM_MODE_CTR 0x00000008
46 46
47#define CRYPTO_TFM_REQ_WEAK_KEY 0x00000100 47#define CRYPTO_TFM_REQ_WEAK_KEY 0x00000100
48#define CRYPTO_TFM_REQ_MAY_SLEEP 0x00000200
48#define CRYPTO_TFM_RES_WEAK_KEY 0x00100000 49#define CRYPTO_TFM_RES_WEAK_KEY 0x00100000
49#define CRYPTO_TFM_RES_BAD_KEY_LEN 0x00200000 50#define CRYPTO_TFM_RES_BAD_KEY_LEN 0x00200000
50#define CRYPTO_TFM_RES_BAD_KEY_SCHED 0x00400000 51#define CRYPTO_TFM_RES_BAD_KEY_SCHED 0x00400000