Linux Device Mapper development
 help / color / mirror / Atom feed
From: Mike Snitzer <snitzer@kernel.org>
To: dm-devel@redhat.com
Cc: axboe@kernel.dk, hch@lst.de, ming.lei@redhat.com
Subject: [dm-devel] [dm-5.19 PATCH 12/21] dm: use bio_sectors in dm_aceept_partial_bio
Date: Sun, 17 Apr 2022 22:27:24 -0400	[thread overview]
Message-ID: <20220418022733.56168-13-snitzer@kernel.org> (raw)
In-Reply-To: <20220418022733.56168-1-snitzer@kernel.org>

Rename 'bi_size' to 'bio_sectors' given bi_size is being stored in
sectors.  Also, use bio_sectors() rather than open-coding it.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
---
 drivers/md/dm.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 3359b55daa99..c8933d7e6a78 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1195,7 +1195,7 @@ static int dm_dax_zero_page_range(struct dax_device *dax_dev, pgoff_t pgoff,
  * +--------------------+---------------+-------+
  *
  * <-------------- *tio->len_ptr --------------->
- *                      <------- bi_size ------->
+ *                      <----- bio_sectors ----->
  *                      <-- n_sectors -->
  *
  * Region 1 was already iterated over with bio_advance or similar function.
@@ -1212,15 +1212,15 @@ static int dm_dax_zero_page_range(struct dax_device *dax_dev, pgoff_t pgoff,
 void dm_accept_partial_bio(struct bio *bio, unsigned n_sectors)
 {
 	struct dm_target_io *tio = clone_to_tio(bio);
-	unsigned bi_size = bio->bi_iter.bi_size >> SECTOR_SHIFT;
+	unsigned bio_sectors = bio_sectors(bio);
 
 	BUG_ON(dm_tio_flagged(tio, DM_TIO_IS_DUPLICATE_BIO));
 	BUG_ON(op_is_zone_mgmt(bio_op(bio)));
 	BUG_ON(bio_op(bio) == REQ_OP_ZONE_APPEND);
-	BUG_ON(bi_size > *tio->len_ptr);
-	BUG_ON(n_sectors > bi_size);
+	BUG_ON(bio_sectors > *tio->len_ptr);
+	BUG_ON(n_sectors > bio_sectors);
 
-	*tio->len_ptr -= bi_size - n_sectors;
+	*tio->len_ptr -= bio_sectors - n_sectors;
 	bio->bi_iter.bi_size = n_sectors << SECTOR_SHIFT;
 }
 EXPORT_SYMBOL_GPL(dm_accept_partial_bio);
-- 
2.15.0

--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel


  parent reply	other threads:[~2022-04-18  2:27 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-18  2:27 [dm-devel] [dm-5.19 PATCH 00/21] dm: changes staged for 5.19 Mike Snitzer
2022-04-18  2:27 ` [dm-devel] [dm-5.19 PATCH 01/21] block: change exported IO accounting interface from gendisk to bdev Mike Snitzer
2022-04-18  2:27 ` [dm-devel] [dm-5.19 PATCH 02/21] dm: conditionally enable BIOSET_PERCPU_CACHE for dm_io bioset Mike Snitzer
2022-04-18  2:27 ` [dm-devel] [dm-5.19 PATCH 03/21] dm: factor out dm_io_set_error and __dm_io_dec_pending Mike Snitzer
2022-04-18  2:27 ` [dm-devel] [dm-5.19 PATCH 04/21] dm: simplify dm_io access in dm_split_and_process_bio Mike Snitzer
2022-04-18  2:27 ` [dm-devel] [dm-5.19 PATCH 05/21] dm: simplify dm_start_io_acct Mike Snitzer
2022-04-18  2:27 ` [dm-devel] [dm-5.19 PATCH 06/21] dm: mark various branches unlikely Mike Snitzer
2022-04-18  2:27 ` [dm-devel] [dm-5.19 PATCH 07/21] dm: add local variables to clone_endio and __map_bio Mike Snitzer
2022-04-18  2:27 ` [dm-devel] [dm-5.19 PATCH 08/21] dm: move hot dm_io members to same cacheline as dm_target_io Mike Snitzer
2022-04-18  2:27 ` [dm-devel] [dm-5.19 PATCH 09/21] dm: introduce dm_{get, put}_live_table_bio called from dm_submit_bio Mike Snitzer
2022-04-18  2:27 ` [dm-devel] [dm-5.19 PATCH 10/21] dm: conditionally enable branching for less used features Mike Snitzer
2022-04-18  2:27 ` [dm-devel] [dm-5.19 PATCH 11/21] dm: simplify basic targets Mike Snitzer
2022-04-18  2:27 ` Mike Snitzer [this message]
2022-04-18  2:27 ` [dm-devel] [dm-5.19 PATCH 13/21] dm: don't pass bio to __dm_start_io_acct and dm_end_io_acct Mike Snitzer
2022-04-18  2:27 ` [dm-devel] [dm-5.19 PATCH 14/21] dm: pass dm_io instance to dm_io_acct directly Mike Snitzer
2022-04-18  2:27 ` [dm-devel] [dm-5.19 PATCH 15/21] dm: switch to bdev based IO accounting interfaces Mike Snitzer
2022-04-18  2:27 ` [dm-devel] [dm-5.19 PATCH 16/21] dm: improve bio splitting and associated IO accounting Mike Snitzer
2022-04-18  2:27 ` [dm-devel] [dm-5.19 PATCH 17/21] dm: don't grab target io reference in dm_zone_map_bio Mike Snitzer
2022-04-18  2:27 ` [dm-devel] [dm-5.19 PATCH 18/21] dm: improve dm_io reference counting Mike Snitzer
2022-04-18  2:27 ` [dm-devel] [dm-5.19 PATCH 19/21] dm: put all polled dm_io instances into a single list Mike Snitzer
2022-04-18  2:27 ` [dm-devel] [dm-5.19 PATCH 20/21] dm: simplify bio-based IO accounting further Mike Snitzer
2022-04-18  2:27 ` [dm-devel] [dm-5.19 PATCH 21/21] dm: improve abnormal bio processing Mike Snitzer
2022-04-21  4:06   ` Shinichiro Kawasaki
2022-04-22 13:13     ` Mike Snitzer
2022-04-22 13:26       ` Mike Snitzer
2022-04-25 23:57         ` Shinichiro Kawasaki
2022-04-18  3:00 ` [dm-devel] [dm-5.19 PATCH 00/21] dm: changes staged for 5.19 Damien Le Moal
2022-04-18  3:16   ` Mike Snitzer
2022-04-18 12:49     ` Jens Axboe
2022-04-18 12:51 ` [dm-devel] (subset) " Jens Axboe

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20220418022733.56168-13-snitzer@kernel.org \
    --to=snitzer@kernel.org \
    --cc=axboe@kernel.dk \
    --cc=dm-devel@redhat.com \
    --cc=hch@lst.de \
    --cc=ming.lei@redhat.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox