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From: Amerigo Wang on 3 Jun 2010 04:30

Since Tetsuo's patch already got merged, now this is the missing part
for local port reservation.

Cc: Roland Dreier <rdreier(a)cisco.com>
Cc: Tetsuo Handa <penguin-kernel(a)i-love.sakura.ne.jp>
Signed-off-by: WANG Cong <amwang(a)redhat.com>

---
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index b930b81..7b89bab 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -1978,6 +1978,7 @@ static int cma_alloc_any_port(struct idr *ps, struct rdma_id_private *id_priv)
rover = net_random() % remaining + low;
retry:
if (last_used_port != rover &&
+ !inet_is_reserved_local_port(rover) &&
!idr_find(ps, (unsigned short) rover)) {
int ret = cma_alloc_port(ps, id_priv, rover);
/*
--
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