Re: [PATCH 05/10] block: do not reassig ->bi_bdev when partition remapping

store a pointer to the block_device in struct bio (again) v2 · Christoph Hellwig <hch@lst.de> · 2021-01-24
[PATCH 01/10] brd: remove the end of device check in brd_do_bvec · Christoph Hellwig <hch@lst.de> · 2021-01-24
Re: [PATCH 01/10] brd: remove the end of device check in brd_do_bvec · Johannes Thumshirn <hidden> · 2021-01-26
[PATCH 02/10] dcssblk: remove the end of device check in dcssblk_submit_bio · Christoph Hellwig <hch@lst.de> · 2021-01-24
Re: [PATCH 02/10] dcssblk: remove the end of device check in dcssblk_submit_bio · Johannes Thumshirn <hidden> · 2021-01-26
[PATCH 03/10] block: store a block_device pointer in struct bio · Christoph Hellwig <hch@lst.de> · 2021-01-24
[PATCH 04/10] block: simplify submit_bio_checks a bit · Christoph Hellwig <hch@lst.de> · 2021-01-24
Re: [PATCH 04/10] block: simplify submit_bio_checks a bit · Johannes Thumshirn <hidden> · 2021-01-26
[PATCH 05/10] block: do not reassig ->bi_bdev when partition remapping · Christoph Hellwig <hch@lst.de> · 2021-01-24
Re: [PATCH 05/10] block: do not reassig ->bi_bdev when partition remapping · Jens Axboe <axboe@kernel.dk> · 2021-01-25
Re: [PATCH 05/10] block: do not reassig ->bi_bdev when partition remapping · Christoph Hellwig <hch@lst.de> · 2021-01-25
[PATCH 06/10] block: use ->bi_bdev for bio based I/O accounting · Christoph Hellwig <hch@lst.de> · 2021-01-24
[PATCH 07/10] blk-mq: use ->bi_bdev for I/O accounting · Christoph Hellwig <hch@lst.de> · 2021-01-24
[PATCH 08/10] block: add a disk_uevent helper · Christoph Hellwig <hch@lst.de> · 2021-01-24
Re: [PATCH 08/10] block: add a disk_uevent helper · Johannes Thumshirn <hidden> · 2021-01-25
[PATCH 09/10] block: remove DISK_PITER_REVERSE · Christoph Hellwig <hch@lst.de> · 2021-01-24
[PATCH 10/10] block: use an xarray for disk->part_tbl · Christoph Hellwig <hch@lst.de> · 2021-01-24
Re: store a pointer to the block_device in struct bio (again) v2 · Jens Axboe <axboe@kernel.dk> · 2021-01-25

From: Jens Axboe <axboe@kernel.dk>
Date: 2021-01-25 18:15:08
Also in: dm-devel, linux-bcache, linux-block, linux-raid

On Sun, Jan 24, 2021 at 3:05 AM Christoph Hellwig [off-list ref] wrote:

There is no good reason to reassign ->bi_bdev when remapping the
partition-relative block number to the device wide one, as all the
information required by the drivers comes from the gendisk anyway.

Keeping the original ->bi_bdev alive will allow to greatly simplify
the partition-away I/O accounting.

This one causes boot failures for me on my laptop...

-- 
Jens Axboe

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