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SubjectRe: [Patch] infiniband: check local reserved ports
Date
 > Since Tetsuo's patch already got merged, now this is the missing part
> for local port reservation.
>
> Cc: Roland Dreier <rdreier@cisco.com>
> Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
> Signed-off-by: WANG Cong <amwang@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);
> /*

Should this inet_is_reserved_local_port() test apply to all the "port
spaces" that this code is handling? I honestly am ignorant of the
intended semantics of the new local_reserved_ports stuff, hence my question.

- R.
--
Roland Dreier <rolandd@cisco.com> || For corporate legal information go to:
http://www.cisco.com/web/about/doing_business/legal/cri/index.html


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