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Date: Thu, 21 May 2015 12:39:18 -0600 From: Jens Axboe <axboe@...nel.dk> To: Parav Pandit <parav.pandit@...gotech.com>, linux-nvme@...ts.infradead.org, willy@...ux.intel.com CC: linux-kernel@...r.kernel.org Subject: Re: [PATCH] NVMe: Avoid interrupt disable during queue init. On 05/21/2015 06:12 PM, Parav Pandit wrote: > Avoid diabling interrupt and holding q_lock for the queue > which is just getting initialized. > > With this change, online_queues is also incremented without > lock during queue setup stage. > if Power management nvme_suspend() kicks in during queue setup time, > per nvmeq based q_lock spinlock cannot protect device wide > online_queues variable anyway. Seems fairly pointless, it's not like it's a hot path... -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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