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authorIlya Dryomov <idryomov@gmail.com>2016-12-02 16:35:07 +0100
committerIlya Dryomov <idryomov@gmail.com>2016-12-12 23:09:19 +0100
commit7882a26d2e2e520099e2961d5e2e870f8e4172dc (patch)
treebe084fd64e02745bf8ab5de2c697517467a11c34 /net/ceph/auth_x.h
parenta45f795c65b479b4ba107b6ccde29b896d51ee98 (diff)
downloadlinux-7882a26d2e2e520099e2961d5e2e870f8e4172dc.tar.gz
libceph: rename and align ceph_x_authorizer::reply_buf
It's going to be used as a temporary buffer for in-place en/decryption
with ceph_crypt() instead of on-stack buffers, so rename to enc_buf.
Ensure alignment to avoid GFP_ATOMIC allocations in the crypto stack.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
Diffstat (limited to 'net/ceph/auth_x.h')
-rw-r--r--net/ceph/auth_x.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ceph/auth_x.h b/net/ceph/auth_x.h
index 21a5af904bae..48e9ad41bd2a 100644
--- a/net/ceph/auth_x.h
+++ b/net/ceph/auth_x.h
@@ -24,6 +24,7 @@ struct ceph_x_ticket_handler {
 	unsigned long renew_after, expires;
 };
 
+#define CEPHX_AU_ENC_BUF_LEN	128  /* big enough for encrypted blob */
 
 struct ceph_x_authorizer {
 	struct ceph_authorizer base;
@@ -32,7 +33,7 @@ struct ceph_x_authorizer {
 	unsigned int service;
 	u64 nonce;
 	u64 secret_id;
-	char reply_buf[128];  /* big enough for encrypted blob */
+	char enc_buf[CEPHX_AU_ENC_BUF_LEN] __aligned(8);
 };
 
 struct ceph_x_info {