From: Christoph Hellwig <hch@infradead.org>
To: Mike Snitzer <snitzer@redhat.com>
Cc: linux-block@vger.kernel.org, dm-devel@redhat.com
Subject: Re: [dm-devel] [PATCH 07/14] dm: remove code only needed before submit_bio recursion
Date: Thu, 10 Feb 2022 22:56:01 -0800 [thread overview]
Message-ID: <YgYIgZCMfJ5mgA9t@infradead.org> (raw)
In-Reply-To: <20220210223832.99412-8-snitzer@redhat.com>
> static void alloc_multiple_bios(struct bio_list *blist, struct clone_info *ci,
> struct dm_target *ti, unsigned num_bios,
> unsigned *len)
> @@ -1224,14 +1218,14 @@ static void __send_duplicate_bios(struct clone_info *ci, struct dm_target *ti,
> case 1:
> clone = alloc_tio(ci, ti, 0, len, GFP_NOIO);
> if (len)
> - bio_setup_sector(clone, ci->sector, *len);
> + clone->bi_iter.bi_size = to_bytes(*len);
> __map_bio(clone);
> break;
> default:
> alloc_multiple_bios(&blist, ci, ti, num_bios, len);
> while ((clone = bio_list_pop(&blist))) {
> if (len)
> - bio_setup_sector(clone, ci->sector, *len);
> + clone->bi_iter.bi_size = to_bytes(*len);
> __map_bio(clone);
> }
> break;
> @@ -1350,7 +1344,6 @@ static int __split_and_process_bio(struct clone_info *ci)
> len = min_t(sector_t, max_io_len(ti, ci->sector), ci->sector_count);
>
> clone = alloc_tio(ci, ti, 0, &len, GFP_NOIO);
> - bio_advance(clone, to_bytes(ci->sector - clone->bi_iter.bi_sector));
> clone->bi_iter.bi_size = to_bytes(len);
Maybe move the clone->bi_iter.bi_size assignment into alloc_tio as well?
Otherwise looks good:
Reviewed-by: Christoph Hellwig <hch@lst.de>
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next prev parent reply other threads:[~2022-02-11 6:57 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-10 22:38 [dm-devel] [PATCH 00/14] dm: improve bio-based IO accounting Mike Snitzer
2022-02-10 22:38 ` [dm-devel] [PATCH 01/14] dm: rename split functions Mike Snitzer
2022-02-11 6:48 ` Christoph Hellwig
2022-02-10 22:38 ` [dm-devel] [PATCH 02/14] dm: fold __clone_and_map_data_bio into __split_and_process_bio Mike Snitzer
2022-02-11 6:48 ` Christoph Hellwig
2022-02-10 22:38 ` [dm-devel] [PATCH 03/14] dm: refactor dm_split_and_process_bio a bit Mike Snitzer
2022-02-11 6:52 ` Christoph Hellwig
2022-02-10 22:38 ` [dm-devel] [PATCH 04/14] dm: reduce code duplication in __map_bio Mike Snitzer
2022-02-11 6:52 ` Christoph Hellwig
2022-02-10 22:38 ` [dm-devel] [PATCH 05/14] dm: remove impossible BUG_ON in __send_empty_flush Mike Snitzer
2022-02-11 6:53 ` Christoph Hellwig
2022-02-10 22:38 ` [dm-devel] [PATCH 06/14] dm: remove unused mapped_device argument from free_tio Mike Snitzer
2022-02-11 6:53 ` Christoph Hellwig
2022-02-10 22:38 ` [dm-devel] [PATCH 07/14] dm: remove code only needed before submit_bio recursion Mike Snitzer
2022-02-11 6:56 ` Christoph Hellwig [this message]
2022-02-10 22:38 ` [dm-devel] [PATCH 08/14] dm: record old_sector in dm_target_io before calling map function Mike Snitzer
2022-02-11 6:56 ` Christoph Hellwig
2022-02-10 22:38 ` [dm-devel] [PATCH 09/14] dm: prep for following changes Mike Snitzer
2022-02-11 6:57 ` Christoph Hellwig
2022-02-10 22:38 ` [dm-devel] [PATCH 10/14] dm: add dm_submit_bio_remap interface Mike Snitzer
2022-02-10 22:38 ` [dm-devel] [PATCH 11/14] dm crypt: use dm_submit_bio_remap Mike Snitzer
2022-02-10 22:38 ` [dm-devel] [PATCH 12/14] dm delay: dm_submit_bio_remap Mike Snitzer
2022-02-10 22:38 ` [dm-devel] [PATCH 13/14] dm: improve correctness and efficiency of bio-based IO accounting Mike Snitzer
2022-02-10 22:38 ` [dm-devel] [PATCH 14/14] block: add bio_start_io_acct_remapped for the benefit of DM Mike Snitzer
2022-02-11 7:07 ` Christoph Hellwig
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