[3.5.yuz,extended,stable] Patch "libceph: move init of bio_iter" has been added to staging queue

Message ID 1353431809-8701-1-git-send-email-herton.krzesinski@canonical.com
State New
Headers show

Commit Message

Herton Ronaldo Krzesinski Nov. 20, 2012, 5:16 p.m.
This is a note to let you know that I have just added a patch titled

    libceph: move init of bio_iter

to the linux-3.5.y-queue branch of the 3.5.yuz extended stable tree 
which can be found at:


If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.yuz tree, see



From d324214e5a1859ab39d1bd93d918bc5ff34998d9 Mon Sep 17 00:00:00 2001
From: Alex Elder <elder@inktank.com>
Date: Mon, 11 Jun 2012 14:57:13 -0500
Subject: [PATCH 30/78] libceph: move init of bio_iter

commit 572c588edadaa3da3992bd8a0fed830bbcc861f8 upstream.

If a message has a non-null bio pointer, its bio_iter field is
initialized in write_partial_msg_pages() if this has not been done
already.  This is really a one-time setup operation for sending a
message's (bio) data, so move that initialization code into
prepare_write_message_data() which serves that purpose.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
 net/ceph/messenger.c |    9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)



diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 5e8dbc0d..b83c963 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -603,6 +603,10 @@  static void prepare_write_message_data(struct ceph_connection *con)
 		con->out_msg_pos.page_pos = msg->page_alignment;
 		con->out_msg_pos.page_pos = 0;
+	if (msg->bio && !msg->bio_iter)
+		init_bio_iter(msg->bio, &msg->bio_iter, &msg->bio_seg);
 	con->out_msg_pos.data_pos = 0;
 	con->out_msg_pos.did_page_crc = false;
 	con->out_more = 1;  /* data + footer will follow */
@@ -942,11 +946,6 @@  static int write_partial_msg_pages(struct ceph_connection *con)
 	     con, msg, con->out_msg_pos.page, msg->nr_pages,

-	if (msg->bio && !msg->bio_iter)
-		init_bio_iter(msg->bio, &msg->bio_iter, &msg->bio_seg);
 	while (data_len > con->out_msg_pos.data_pos) {
 		struct page *page = NULL;
 		int max_write = PAGE_SIZE;