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authorAlex Elder <elder@inktank.com>2013-03-02 04:00:14 +0400
committerSage Weil <sage@inktank.com>2013-05-02 08:16:19 +0400
commit53ded495c6ac9f79d9a7f91bac92ba977944306c (patch)
tree5ba298a77c6b8ca0678fd53fd1c087f7e3d43581 /fs/ceph/mds_client.c
parent1d866d1c31110db177cbd0636b95c4cb32ca2c6e (diff)
downloadlinux-53ded495c6ac9f79d9a7f91bac92ba977944306c.tar.xz
libceph: define mds_alloc_msg() method
The only user of the ceph messenger that doesn't define an alloc_msg method is the mds client. Define one, such that it works just like it did before, and simplify ceph_con_in_msg_alloc() by assuming the alloc_msg method is always present. This and the next patch resolve: http://tracker.ceph.com/issues/4322 Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Greg Farnum <greg@inktank.com>
Diffstat (limited to 'fs/ceph/mds_client.c')
-rw-r--r--fs/ceph/mds_client.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 4efbc63e0bb6..b87b24fed4b2 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -3473,6 +3473,28 @@ static int invalidate_authorizer(struct ceph_connection *con)
return ceph_monc_validate_auth(&mdsc->fsc->client->monc);
}
+static struct ceph_msg *mds_alloc_msg(struct ceph_connection *con,
+ struct ceph_msg_header *hdr, int *skip)
+{
+ struct ceph_msg *msg;
+ int type = (int) le16_to_cpu(hdr->type);
+ int front_len = (int) le32_to_cpu(hdr->front_len);
+
+ if (con->in_msg)
+ return con->in_msg;
+
+ *skip = 0;
+ msg = ceph_msg_new(type, front_len, GFP_NOFS, false);
+ if (!msg) {
+ pr_err("unable to allocate msg type %d len %d\n",
+ type, front_len);
+ return NULL;
+ }
+ msg->page_alignment = (unsigned int) le16_to_cpu(hdr->data_off);
+
+ return msg;
+}
+
static const struct ceph_connection_operations mds_con_ops = {
.get = con_get,
.put = con_put,
@@ -3481,6 +3503,7 @@ static const struct ceph_connection_operations mds_con_ops = {
.verify_authorizer_reply = verify_authorizer_reply,
.invalidate_authorizer = invalidate_authorizer,
.peer_reset = peer_reset,
+ .alloc_msg = mds_alloc_msg,
};
/* eof */