afs_send_pages(): use ITER_BVEC

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c
index 25f05a8d21b195fffb10f89cff990888fefd1ab2..bfba8f0c3d43ccd8abb089e4ad7c759e4543d843 100644 (file)
--- a/fs/afs/rxrpc.c
+++ b/fs/afs/rxrpc.c
@@ -249,8 +249,7 @@ void afs_flat_call_destructor(struct afs_call *call)
 /*
  * attach the data from a bunch of pages on an inode to a call
  */
-static int afs_send_pages(struct afs_call *call, struct msghdr *msg,
-                         struct kvec *iov)
+static int afs_send_pages(struct afs_call *call, struct msghdr *msg)
 {
        struct page *pages[8];
        unsigned count, n, loop, offset, to;
@@ -273,20 +272,21 @@ static int afs_send_pages(struct afs_call *call, struct msghdr *msg,
 
                loop = 0;
                do {
+                       struct bio_vec bvec = {.bv_page = pages[loop],
+                                              .bv_offset = offset};
                        msg->msg_flags = 0;
                        to = PAGE_SIZE;
                        if (first + loop >= last)
                                to = call->last_to;
                        else
                                msg->msg_flags = MSG_MORE;
-                       iov->iov_base = kmap(pages[loop]) + offset;
-                       iov->iov_len = to - offset;
+                       bvec.bv_len = to - offset;
                        offset = 0;
 
                        _debug("- range %u-%u%s",
                               offset, to, msg->msg_flags ? " [more]" : "");
-                       iov_iter_kvec(&msg->msg_iter, WRITE | ITER_KVEC,
-                                     iov, 1, to - offset);
+                       iov_iter_bvec(&msg->msg_iter, WRITE | ITER_BVEC,
+                                     &bvec, 1, to - offset);
 
                        /* have to change the state *before* sending the last
                         * packet as RxRPC might give us the reply before it
@@ -295,7 +295,6 @@ static int afs_send_pages(struct afs_call *call, struct msghdr *msg,
                                call->state = AFS_CALL_AWAIT_REPLY;
                        ret = rxrpc_kernel_send_data(afs_socket, call->rxcall,
                                                     msg, to - offset);
-                       kunmap(pages[loop]);
                        if (ret < 0)
                                break;
                } while (++loop < count);
@@ -379,7 +378,7 @@ int afs_make_call(struct in_addr *addr, struct afs_call *call, gfp_t gfp,
                goto error_do_abort;
 
        if (call->send_pages) {
-               ret = afs_send_pages(call, &msg, iov);
+               ret = afs_send_pages(call, &msg);
                if (ret < 0)
                        goto error_do_abort;
        }