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From: Akinobu Mita <akinobu.mita@gmail.com>
To: Christoph Hellwig <hch@lst.de>
Cc: linux-nvme@lists.infradead.org,
	LKML <linux-kernel@vger.kernel.org>,
	Johannes Berg <johannes@sipsolutions.net>,
	Keith Busch <keith.busch@intel.com>, Jens Axboe <axboe@fb.com>,
	Sagi Grimberg <sagi@grimberg.me>,
	Minwoo Im <minwoo.im.dev@gmail.com>,
	Kenneth Heitke <kenneth.heitke@intel.com>
Subject: Re: [PATCH v3 5/7] nvme-pci: add device coredump infrastructure
Date: Tue, 14 May 2019 00:01:51 +0900	[thread overview]
Message-ID: <CAC5umygobKcQ4NacG7cGkuqXR1qLUFCRBovWu5n=EOs=mu=esg@mail.gmail.com> (raw)
In-Reply-To: <20190513140246.GB24840@lst.de>

2019年5月13日(月) 23:03 Christoph Hellwig <hch@lst.de>:
>
> Usage of a scatterlist here is rather bogus as we never use
> it for dma mapping.  Why can't you store the various pages in a
> large bio_vec and then just issue that to the device in one
> get log page command?  (or at least a few if MDTS kicks in?)

OK.  I'll try to use bio_vec and see how it goes.

  reply	other threads:[~2019-05-13 15:02 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-12 15:54 [PATCH v3 0/7] nvme-pci: support device coredump Akinobu Mita
2019-05-12 15:54 ` [PATCH v3 1/7] devcoredump: use memory_read_from_buffer Akinobu Mita
2019-05-13 15:28   ` Chaitanya Kulkarni
2019-05-12 15:54 ` [PATCH v3 2/7] devcoredump: fix typo in comment Akinobu Mita
2019-05-13 15:24   ` Chaitanya Kulkarni
2019-05-12 15:54 ` [PATCH v3 3/7] devcoredump: allow to create several coredump files in one device Akinobu Mita
2019-05-12 15:54 ` [PATCH v3 4/7] nvme: add basic facility to get telemetry log page Akinobu Mita
2019-05-13 15:34   ` Chaitanya Kulkarni
2019-05-14 14:04     ` Akinobu Mita
2019-05-12 15:54 ` [PATCH v3 5/7] nvme-pci: add device coredump infrastructure Akinobu Mita
2019-05-13 13:50   ` Keith Busch
2019-05-13 15:01     ` Akinobu Mita
2019-05-13 14:02   ` Christoph Hellwig
2019-05-13 15:01     ` Akinobu Mita [this message]
2019-05-12 15:54 ` [PATCH v3 6/7] nvme-pci: trigger device coredump on command timeout Akinobu Mita
2019-05-13 13:52   ` Keith Busch
2019-05-12 15:54 ` [PATCH v3 7/7] nvme-pci: enable to trigger device coredump by hand Akinobu Mita
     [not found] ` <CGME20190512155533epcas4p110edff15ebf5b2efae32e43f0f10ab59@epcms2p5>
2019-05-13  7:41   ` [PATCH v3 6/7] nvme-pci: trigger device coredump on command timeout Minwoo Im
2019-05-13 14:59     ` Akinobu Mita
     [not found] ` <CGME20190512155540epcas4p14c15eb86b08dcd281e9a93a4fc190800@epcms2p1>
2019-05-13  7:46   ` [PATCH v3 5/7] nvme-pci: add device coredump infrastructure Minwoo Im
2019-05-13 15:23     ` Chaitanya Kulkarni
2019-05-14 14:06       ` Akinobu Mita

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