libceph: use local variable cursor instead of &msg->cursor

Use local variable cursor in place of &msg->cursor in
read_partial_msg_data() and write_partial_msg_data().

Signed-off-by: Shraddha Barke <shraddha.6596@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index b9b0e3b..fce6ad6 100644 (file)
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -1552,8 +1552,8 @@ static int write_partial_message_data(struct ceph_connection *con)
                bool need_crc;
                int ret;
 
-               page = ceph_msg_data_next(&msg->cursor, &page_offset, &length,
-                                                       &last_piece);
+               page = ceph_msg_data_next(cursor, &page_offset, &length,
+                                         &last_piece);
                ret = ceph_tcp_sendpage(con->sock, page, page_offset,
                                        length, !last_piece);
                if (ret <= 0) {
@@ -1564,7 +1564,7 @@ static int write_partial_message_data(struct ceph_connection *con)
                }
                if (do_datacrc && cursor->need_crc)
                        crc = ceph_crc32c_page(crc, page, page_offset, length);
-               need_crc = ceph_msg_data_advance(&msg->cursor, (size_t)ret);
+               need_crc = ceph_msg_data_advance(cursor, (size_t)ret);
        }
 
        dout("%s %p msg %p done\n", __func__, con, msg);
@@ -2246,8 +2246,7 @@ static int read_partial_msg_data(struct ceph_connection *con)
        if (do_datacrc)
                crc = con->in_data_crc;
        while (cursor->resid) {
-               page = ceph_msg_data_next(&msg->cursor, &page_offset, &length,
-                                                       NULL);
+               page = ceph_msg_data_next(cursor, &page_offset, &length, NULL);
                ret = ceph_tcp_recvpage(con->sock, page, page_offset, length);
                if (ret <= 0) {
                        if (do_datacrc)
@@ -2258,7 +2257,7 @@ static int read_partial_msg_data(struct ceph_connection *con)
 
                if (do_datacrc)
                        crc = ceph_crc32c_page(crc, page, page_offset, ret);
-               (void) ceph_msg_data_advance(&msg->cursor, (size_t)ret);
+               (void) ceph_msg_data_advance(cursor, (size_t)ret);
        }
        if (do_datacrc)
                con->in_data_crc = crc;