ceph: hex dump corrupt server data to KERN_DEBUG

[linux-2.6-block.git] / fs / ceph / messenger.c

diff --git a/fs/ceph/messenger.c b/fs/ceph/messenger.c
index d5eef76a253ceb5d6c1347199974b8e96b9005f7..b10f88c5670647de4eb1e75df3d5af122c98e668 100644 (file)
--- a/fs/ceph/messenger.c
+++ b/fs/ceph/messenger.c
@@ -2115,3 +2115,23 @@ void ceph_msg_last_put(struct kref *kref)
        else
                ceph_msg_kfree(m);
 }
+
+void ceph_msg_dump(struct ceph_msg *msg)
+{
+       pr_debug("msg_dump %p (front_max %d nr_pages %d)\n", msg,
+                msg->front_max, msg->nr_pages);
+       print_hex_dump(KERN_DEBUG, "header: ",
+                      DUMP_PREFIX_OFFSET, 16, 1,
+                      &msg->hdr, sizeof(msg->hdr), true);
+       print_hex_dump(KERN_DEBUG, " front: ",
+                      DUMP_PREFIX_OFFSET, 16, 1,
+                      msg->front.iov_base, msg->front.iov_len, true);
+       if (msg->middle)
+               print_hex_dump(KERN_DEBUG, "middle: ",
+                              DUMP_PREFIX_OFFSET, 16, 1,
+                              msg->middle->vec.iov_base,
+                              msg->middle->vec.iov_len, true);
+       print_hex_dump(KERN_DEBUG, "footer: ",
+                      DUMP_PREFIX_OFFSET, 16, 1,
+                      &msg->footer, sizeof(msg->footer), true);
+}