From: Jens Axboe <axboe@kernel.dk>
To: Christoph Hellwig <hch@lst.de>
Cc: linux-block@vger.kernel.org, linux-raid@vger.kernel.org,
linux-btrfs@vger.kernel.org
Subject: Re: don't require a struct block_device to submit a bio
Date: Wed, 23 Aug 2017 12:04:45 -0600 [thread overview]
Message-ID: <e94c9d00-824e-a90e-87b4-7791714dd96b@kernel.dk> (raw)
In-Reply-To: <20170823171032.30529-1-hch@lst.de>
On 08/23/2017 11:10 AM, Christoph Hellwig wrote:
> Hi Jens,
>
> this series removes the need to have a struct block_device ready to
> submit a bio. We basically don't use it anywhere in the block stack
> anyway - we always go for the gendisk or request_queue. The only
> exception is partition remapping for which we'll now need an additional
> partition index. This helps with cases where we submit I/O from a
> character device (nvme or lightnvm passthrough) or a different block
> device (upcoming nvme multipath support).
Looks fine to me. I can take it through the block tree, when the md/btrfs
parts are reviewed by the right parties.
--
Jens Axboe
next prev parent reply other threads:[~2017-08-23 18:04 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-23 17:10 don't require a struct block_device to submit a bio Christoph Hellwig
2017-08-23 17:10 ` [PATCH 1/6] btrfs: index check-integrity state hash by a dev_t Christoph Hellwig
2017-08-23 17:45 ` Liu Bo
2017-08-23 17:10 ` [PATCH 2/6] raid5: remove a call to get_start_sect Christoph Hellwig
2017-08-23 18:23 ` Shaohua Li
2017-08-24 9:18 ` Christoph Hellwig
2017-08-23 17:10 ` [PATCH 3/6] block: reject attempts to allocate more than DISK_MAX_PARTS partitions Christoph Hellwig
2017-08-23 17:10 ` [PATCH 4/6] block: add a __disk_get_part helper Christoph Hellwig
2017-08-23 17:10 ` [PATCH 5/6] block: cache the partition index in struct block_device Christoph Hellwig
2017-08-23 17:10 ` [PATCH 6/6] block: replace bi_bdev with a gendisk pointer and partitions index Christoph Hellwig
2017-08-23 18:01 ` don't require a struct block_device to submit a bio Christoph Hellwig
2017-08-23 18:04 ` Jens Axboe [this message]
2017-08-23 18:50 ` Jens Axboe
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