lkml.org 
[lkml]   [2011]   [Sep]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 02/54] drbd: Add drbd_send_all(): Send an entire buffer
Date
From: Andreas Gruenbacher <agruen@linbit.com>

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
---
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


\
 
 \ /
  Last update: 2011-09-05 13:49    [from the cache]
©2003-2011 Jasper Spaans