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From: Christoph Hellwig <hch@lst.de>
To: Ming Lei <ming.lei@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>,
	linux-block@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
	Mike Snitzer <snitzer@redhat.com>,
	Kent Overstreet <kent.overstreet@gmail.com>
Subject: Re: [PATCH 2/3] block: kill QUEUE_FLAG_NO_SG_MERGE
Date: Wed, 1 Aug 2018 16:54:02 +0200	[thread overview]
Message-ID: <20180801145402.GB28668@lst.de> (raw)
In-Reply-To: <20180731104914.17249-3-ming.lei@redhat.com>

We still hit __blk_recalc_rq_segments at least once per submission,
don't we?  Either rather wait with this until we have multi-page bvecs.

  reply	other threads:[~2018-08-01 14:54 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-31 10:49 [PATCH 0/3] block: fix mismatch of figuring out physical segment number Ming Lei
2018-07-31 10:49 ` [PATCH 1/3] block: don't use bio->bi_vcnt to figure out " Ming Lei
2018-08-01 14:52   ` Christoph Hellwig
2018-07-31 10:49 ` [PATCH 2/3] block: kill QUEUE_FLAG_NO_SG_MERGE Ming Lei
2018-08-01 14:54   ` Christoph Hellwig [this message]
2018-08-01 23:11     ` Ming Lei
2018-07-31 10:49 ` [PATCH 3/3] block: kill BLK_MQ_F_SG_MERGE Ming Lei
2018-07-31 15:32 ` [PATCH 0/3] block: fix mismatch of figuring out physical segment number Mike Snitzer
2018-08-06  2:37 ` Ming Lei

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