From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752734Ab1IELqB (ORCPT ); Mon, 5 Sep 2011 07:46:01 -0400 Received: from mail09.linbit.com ([212.69.161.110]:59822 "EHLO mail09.linbit.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752611Ab1IELpt (ORCPT ); Mon, 5 Sep 2011 07:45:49 -0400 From: Philipp Reisner To: linux-kernel@vger.kernel.org, Jens Axboe Cc: drbd-dev@lists.linbit.com Subject: [PATCH 02/54] drbd: Add drbd_send_all(): Send an entire buffer Date: Mon, 5 Sep 2011 13:44:53 +0200 Message-Id: <1315223145-20640-3-git-send-email-philipp.reisner@linbit.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1315223145-20640-1-git-send-email-philipp.reisner@linbit.com> References: <1315223145-20640-1-git-send-email-philipp.reisner@linbit.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Andreas Gruenbacher Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- drivers/block/drbd/drbd_int.h | 3 +++ drivers/block/drbd/drbd_main.c | 18 ++++++++++++++++++ 2 files changed, 21 insertions(+), 0 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index eaa1fd5..32799ea 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -1161,6 +1161,9 @@ extern void _tl_add_barrier(struct drbd_tconn *, struct drbd_tl_epoch *); extern void drbd_free_sock(struct drbd_tconn *tconn); extern int drbd_send(struct drbd_tconn *tconn, struct socket *sock, void *buf, size_t size, unsigned msg_flags); +extern int drbd_send_all(struct drbd_tconn *, struct socket *, void *, size_t, + unsigned); + extern int drbd_send_protocol(struct drbd_tconn *tconn); extern int drbd_send_uuids(struct drbd_conf *mdev); extern int drbd_send_uuids_skip_initial_sync(struct drbd_conf *mdev); diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 628005a..1381d01 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1764,6 +1764,24 @@ int drbd_send(struct drbd_tconn *tconn, struct socket *sock, return sent; } +/** + * drbd_send_all - Send an entire buffer + * + * Returns 0 upon success and a negative error value otherwise. + */ +int drbd_send_all(struct drbd_tconn *tconn, struct socket *sock, void *buffer, + size_t size, unsigned msg_flags) +{ + int err; + + err = drbd_send(tconn, sock, buffer, size, msg_flags); + if (err < 0) + return err; + if (err != size) + return -EIO; + return 0; +} + static int drbd_open(struct block_device *bdev, fmode_t mode) { struct drbd_conf *mdev = bdev->bd_disk->private_data; -- 1.7.4.1