ceph: move AES iv definition to shared header

Signed-off-by: Sage Weil <sage@newdream.net>

2 files changed, 3 insertions, 1 deletions

diff --git a/fs/ceph/ceph_fs.h b/fs/ceph/ceph_fs.h
index bf7dea673237..5bf4ec2cf9eb 100644
--- a/fs/ceph/ceph_fs.h
+++ b/fs/ceph/ceph_fs.h
@@ -74,6 +74,8 @@ int ceph_file_layout_is_valid(const struct ceph_file_layout *layout);
 #define CEPH_CRYPTO_NONE 0x0
 #define CEPH_CRYPTO_AES  0x1
 
+#define CEPH_AES_IV "cephsageyudagreg"
+
 /* security/authentication protocols */
 #define CEPH_AUTH_UNKNOWN       0x0
 #define CEPH_AUTH_NONE          0x1
diff --git a/fs/ceph/crypto.c b/fs/ceph/crypto.c
index c9318278f419..a3e627f63293 100644
--- a/fs/ceph/crypto.c
+++ b/fs/ceph/crypto.c
@@ -75,7 +75,7 @@ static struct crypto_blkcipher *ceph_crypto_alloc_cipher(void)
         return crypto_alloc_blkcipher("cbc(aes)", 0, CRYPTO_ALG_ASYNC);
 }
 
-static const u8 *aes_iv = "cephsageyudagreg";
+static const u8 *aes_iv = (u8 *)CEPH_AES_IV;
 
 static int ceph_aes_encrypt(const void *key, int key_len,
                             void *dst, size_t *dst_len,