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RDS: Properly unmap when getting a remote access error 

If the RDMA op has aborted with a remote access error,
in addition to what we already do (tell userspace it has
completed with an error) also unmap it and put() the rm.

Otherwise, hangs may occur on arches that track maps and
will not exit without proper cleanup.

Signed-off-by: Andy Grover <andy.grover@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sherman Pun 2010-03-11 13:50:05 +00:00 committed by David S. Miller
parent b98ba52f96
commit 450d06c020
1 changed files with 5 additions and 1 deletions
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6
net/rds/ib_send.c
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@ -243,8 +243,12 @@ void rds_ib_send_cq_comp_handler(struct ib_cq *cq, void *context)
struct rds_message *rm;
rm = rds_send_get_message(conn, send->s_op);
if (rm)
if (rm) {
if (rm->m_rdma_op)
rds_ib_send_unmap_rdma(ic, rm->m_rdma_op);
rds_ib_send_rdma_complete(rm, wc.status);
rds_message_put(rm);
}
}
oldest = (oldest + 1) % ic->i_send_ring.w_nr;