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From:   Akinobu Mita <akinobu.mita@gmail.com>
Date:   Tue, 14 May 2019 00:01:51 +0900
Message-ID: <CAC5umygobKcQ4NacG7cGkuqXR1qLUFCRBovWu5n=EOs=mu=esg@mail.gmail.com>
Subject: Re: [PATCH v3 5/7] nvme-pci: add device coredump infrastructure
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>
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2019=E5=B9=B45=E6=9C=8813=E6=97=A5(=E6=9C=88) 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.