linux-kernel - Re: [PATCH 2/9] IB: add a proper completion queue abstraction

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Message-ID: <56519A90.5010502@dev.mellanox.co.il>
Date:	Sun, 22 Nov 2015 12:36:00 +0200
From:	Sagi Grimberg <sagig@....mellanox.co.il>
To:	Christoph Hellwig <hch@....de>
Cc:	Bart Van Assche <bart.vanassche@...disk.com>,
	"linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
	"axboe@...com" <axboe@...com>,
	"linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/9] IB: add a proper completion queue abstraction


> Wouldn't it be a better idea to set the WQ_SYSFS interface and use
> the standard sysfs interface for specifying cpumasks or node affinity?

I think that bart wants to allow the caller to select cpu affinity
per CQ. In this case ib_alloc_cq in workqueue mode would need to
accept a affinity_hint from the caller (default to wild-card 
WORK_CPU_UNBOUND).
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