From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Tue, 23 Oct 2012 21:50:07 +0000 (-0400)
Subject: SUNRPC: Prevent races in xs_abort_connection()
X-Git-Tag: v3.2.33~33
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d5b39621940bd5cf4acf43116af84281b4c3238e;p=pandora-kernel.git

SUNRPC: Prevent races in xs_abort_connection()

commit 4bc1e68ed6a8b59be8a79eb719be515a55c7bc68 upstream.

The call to xprt_disconnect_done() that is triggered by a successful
connection reset will trigger another automatic wakeup of all tasks
on the xprt->pending rpc_wait_queue. In particular it will cause an
early wake up of the task that called xprt_connect().

All we really want to do here is clear all the socket-specific state
flags, so we split that functionality out of xs_sock_mark_closed()
into a helper that can be called by xs_abort_connection()

Reported-by: Chris Perl <chris.perl@gmail.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Tested-by: Chris Perl <chris.perl@gmail.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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