linux-kernel - Re: [PATCH] rds: Fix inaccurate accounting of unsignaled wrs

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Message-ID: <e97ce8a5-4ad4-791b-2dd4-b3101999cca0@oracle.com>
Date:   Tue, 24 Oct 2017 09:05:59 -0700
From:   Santosh Shilimkar <santosh.shilimkar@...cle.com>
To:     Håkon Bugge <Haakon.Bugge@...cle.com>
Cc:     "David S . Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, rds-devel@....oracle.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] rds: Fix inaccurate accounting of unsignaled wrs

On 10/24/2017 7:16 AM, Håkon Bugge wrote:
> The number of unsignaled work-requests posted to the IB send queue is
> tracked by a counter in the rds_ib_connection struct. When it reaches
> zero, or the caller explicitly asks for it, the send-signaled bit is
> set in send_flags and the counter is reset. This is performed by the
> rds_ib_set_wr_signal_state() function.
> 
> However, this function is not always used which yields inaccurate
> accounting. This commit fixes this, re-factors a code bloat related to
> the matter, and makes the actual parameter type to the function
> consistent.
> 
> Signed-off-by: Håkon Bugge <haakon.bugge@...cle.com>
> ---
Instead of partially doing changes inside/outside helper,
can also add inline helper for solicited state like
rds_ib_set_wr_solicited_state() and use that along
with this change.

Regards,
Santosh