From 550a8002e4340eaf3bc333e33b59427e9c20272d Mon Sep 17 00:00:00 2001
From: Tina Yang <tina.yang@oracle.com>
Date: Thu, 11 Mar 2010 13:50:03 +0000
Subject: [PATCH] RDS: Fix locking in rds_send_drop_to()

It seems rds_send_drop_to() called
__rds_rdma_send_complete(rs, rm, RDS_RDMA_CANCELED)
with only rds_sock lock, but not rds_message lock. It raced with
other threads that is attempting to modify the rds_message as well,
such as from within rds_rdma_send_complete().

Signed-off-by: Tina Yang <tina.yang@oracle.com>
Signed-off-by: Andy Grover <andy.grover@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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