From: Sage Weil <sage@newdream.net>
Date: Fri, 2 Apr 2010 23:07:19 +0000 (-0700)
Subject: ceph: fix ack counter reset on connection reset
X-Git-Tag: v2.6.34-rc5~17^2~5
X-Git-Url: http://bbs.cooldavid.org/git/?a=commitdiff_plain;h=0e0d5e0c4bb0476d53a43bfc87d03a25ec4b5579;p=net-next-2.6.git

ceph: fix ack counter reset on connection reset

If in_seq_acked isn't reset along with in_seq, we don't ack received
messages until we reach the old count, consuming gobs memory on the other
end of the connection and introducing a large delay when those messages
are eventually deleted.

Signed-off-by: Sage Weil <sage@newdream.net>
---

diff --git a/fs/ceph/messenger.c b/fs/ceph/messenger.c
index a32f0f896d9..f35b4945a9c 100644
--- a/fs/ceph/messenger.c
+++ b/fs/ceph/messenger.c
@@ -332,6 +332,7 @@ static void reset_connection(struct ceph_connection *con)
 		con->out_msg = NULL;
 	}
 	con->in_seq = 0;
+	con->in_seq_acked = 0;
 }
 
 /*