From: Christoph Hellwig <hch@lst.de>
To: Shaohua Li <shli@fb.com>
Cc: linux-kernel@vger.kernel.org, axboe@fb.com, jmoyer@redhat.com,
hch@lst.de, neilb@suse.de
Subject: Re: [PATCH 1/5] blk: clean up plug
Date: Fri, 1 May 2015 19:11:26 +0200 [thread overview]
Message-ID: <20150501171126.GA16920@lst.de> (raw)
In-Reply-To: <f3bfe60a013827942790c89d658f63c920653437.1430414610.git.shli@fb.com>
On Thu, Apr 30, 2015 at 10:45:14AM -0700, Shaohua Li wrote:
> Current code looks like inner plug gets flushed with a
> blk_finish_plug(). Actually it's a nop. All requests/callbacks are added
> to current->plug, while only outmost plug is assigned to current->plug.
> So inner plug always has empty request/callback list, which makes
> blk_flush_plug_list() a nop. This tries to make the code more clear.
Looks good,
Reviewed-by: Christoph Hellwig <hch@lst.de>
next prev parent reply other threads:[~2015-05-01 17:11 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-30 17:45 [PATCH 0/5] blk plug fixes Shaohua Li
2015-04-30 17:45 ` [PATCH 1/5] blk: clean up plug Shaohua Li
2015-05-01 17:11 ` Christoph Hellwig [this message]
2015-04-30 17:45 ` [PATCH 2/5] sched: always use blk_schedule_flush_plug in io_schedule_out Shaohua Li
2015-05-01 17:14 ` Christoph Hellwig
2015-05-01 18:05 ` Shaohua Li
2015-05-01 17:42 ` Jeff Moyer
2015-05-01 18:07 ` Jeff Moyer
2015-05-01 18:28 ` Shaohua Li
2015-05-01 19:37 ` Jeff Moyer
2015-04-30 17:45 ` [PATCH 3/5] blk-mq: fix plugging in blk_sq_make_request Shaohua Li
2015-05-01 17:16 ` Christoph Hellwig
2015-05-01 17:47 ` Jeff Moyer
2015-04-30 17:45 ` [PATCH 4/5] blk-mq: do limited block plug for multiple queue case Shaohua Li
2015-05-01 20:16 ` Jeff Moyer
2015-05-04 19:40 ` Shaohua Li
2015-05-04 19:46 ` Jens Axboe
2015-05-04 20:33 ` Shaohua Li
2015-05-04 20:35 ` Jens Axboe
2015-04-30 17:45 ` [PATCH 5/5] blk-mq: make plug work for mutiple disks and queues Shaohua Li
2015-05-01 20:55 ` Jeff Moyer
2015-05-04 19:44 ` Shaohua Li
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