SUNRPC: Prevent races in xs_abort_connection()
authorTrond Myklebust <Trond.Myklebust@netapp.com>
Tue, 23 Oct 2012 21:50:07 +0000 (17:50 -0400)
committerTrond Myklebust <Trond.Myklebust@netapp.com>
Wed, 24 Oct 2012 14:46:08 +0000 (10:46 -0400)
commit4bc1e68ed6a8b59be8a79eb719be515a55c7bc68
tree93a4b34c2759a52a1f57850c9f3719296beeee24
parentb9d2bb2ee537424a7f855e1f93eed44eb9ee0854
SUNRPC: Prevent races in xs_abort_connection()

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>
Cc: stable@vger.kernel.org
Tested-by: Chris Perl <chris.perl@gmail.com>
net/sunrpc/xprtsock.c