]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
dlm: bind connections from known local address when using TCP
authorLon Hohberger <lhh@redhat.com>
Thu, 25 Oct 2007 22:51:54 +0000 (18:51 -0400)
committerDavid Teigland <teigland@redhat.com>
Tue, 29 Jan 2008 22:44:25 +0000 (16:44 -0600)
commit6bd8fedaa16da1e24f38712ee759950d8c5f4f09
treec14670142610dde814c04833e56ef91187dc6920
parent0ba6c33bcddc64a54b5f1c25a696c4767dc76292
dlm: bind connections from known local address when using TCP

A common problem occurs when multiple IP addresses within the same
subnet are assigned to the same NIC.  If we make a connection attempt to
another address on the same subnet as one of those addresses, the
connection attempt will not necessarily be routed from the address we
want.

In the case of the DLM, the other nodes will quickly drop the connection
attempt, causing problems.

This patch makes the DLM bind to the local address it acquired from the
cluster manager when using TCP prior to making a connection, obviating
the need for administrators to "fix" their systems or use clever routing
tricks.

Signed-off-by: Lon Hohberger <lhh@redhat.com>
Signed-off-by: Patrick Caulfield <pcaulfie@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
fs/dlm/lowcomms.c