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* [dm-devel] cleanup bio_kmalloc v3
@ 2022-04-06  6:12 ` Christoph Hellwig
  0 siblings, 0 replies; 26+ messages in thread
From: Christoph Hellwig @ 2022-04-06  6:12 UTC (permalink / raw)
  To: Jens Axboe
  Cc: linux-bcache, linux-raid, Mike Snitzer, Martin K. Petersen,
	linux-kernel, Josef Bacik, Coly Li, linux-block, Song Liu,
	dm-devel, target-devel, David Sterba, Phillip Lougher,
	linux-btrfs

Hi Jens,

this series finishes off the bio allocation interface cleanups by dealing
with the weirdest member of the famility.  bio_kmalloc combines a kmalloc
for the bio and bio_vecs with a hidden bio_init call and magic cleanup
semantics.

This series moves a few callers away from bio_kmalloc and then turns
bio_kmalloc into a simple wrapper for a slab allocation of a bio and the
inline biovecs.  The callers need to manually call bio_init instead with
all that entails and the magic that turns bio_put into a kfree goes away
as well, allowing for a proper debug check in bio_put that catches
accidental use on a bio_init()ed bio.

Changes since v2:
 - rebased to 5.18-rc1
 - fix bio freeing in squashfs

Changes since v1:
 - update a pre-existing comment per maintainer suggestion

Diffstat:
 block/bio.c                        |   47 ++++++++++++++-----------------------
 block/blk-crypto-fallback.c        |   14 ++++++-----
 block/blk-map.c                    |   42 +++++++++++++++++++++------------
 drivers/block/pktcdvd.c            |   34 +++++++++++---------------
 drivers/md/bcache/debug.c          |   10 ++++---
 drivers/md/dm-bufio.c              |    9 +++----
 drivers/md/raid1.c                 |   12 ++++++---
 drivers/md/raid10.c                |   21 +++++++++++-----
 drivers/target/target_core_pscsi.c |   36 ++++------------------------
 fs/btrfs/disk-io.c                 |    8 +++---
 fs/btrfs/volumes.c                 |   11 --------
 fs/btrfs/volumes.h                 |    2 -
 fs/squashfs/block.c                |   14 +++--------
 include/linux/bio.h                |    2 -
 14 files changed, 116 insertions(+), 146 deletions(-)

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^ permalink raw reply	[flat|nested] 26+ messages in thread

end of thread, other threads:[~2022-04-18  1:33 UTC | newest]

Thread overview: 26+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-04-06  6:12 [dm-devel] cleanup bio_kmalloc v3 Christoph Hellwig
2022-04-06  6:12 ` Christoph Hellwig
2022-04-06  6:12 ` [dm-devel] [PATCH 1/5] btrfs: simplify ->flush_bio handling Christoph Hellwig
2022-04-06  6:12   ` Christoph Hellwig
2022-04-06 16:23   ` Chaitanya Kulkarni
2022-04-06 16:23     ` [dm-devel] " Chaitanya Kulkarni
2022-04-06  6:12 ` [dm-devel] [PATCH 2/5] squashfs: always use bio_kmalloc in squashfs_bio_read Christoph Hellwig
2022-04-06  6:12   ` Christoph Hellwig
2022-04-06 16:24   ` Chaitanya Kulkarni
2022-04-06 16:24     ` [dm-devel] " Chaitanya Kulkarni
2022-04-06  6:12 ` [dm-devel] [PATCH 3/5] target/pscsi: remove pscsi_get_bio Christoph Hellwig
2022-04-06  6:12   ` Christoph Hellwig
2022-04-06 16:25   ` Chaitanya Kulkarni
2022-04-06 16:25     ` [dm-devel] " Chaitanya Kulkarni
2022-04-06  6:12 ` [dm-devel] [PATCH 4/5] block: turn bio_kmalloc into a simple kmalloc wrapper Christoph Hellwig
2022-04-06  6:12   ` Christoph Hellwig
2022-04-07  8:16   ` Coly Li
2022-04-07  8:16     ` [dm-devel] " Coly Li
2022-04-13 17:04   ` Mike Snitzer
2022-04-13 17:04     ` [dm-devel] " Mike Snitzer
2022-04-06  6:12 ` [dm-devel] [PATCH 5/5] pktcdvd: stop using bio_reset Christoph Hellwig
2022-04-06  6:12   ` Christoph Hellwig
2022-04-15  4:57 ` [dm-devel] cleanup bio_kmalloc v3 Christoph Hellwig
2022-04-15  4:57   ` Christoph Hellwig
2022-04-18  1:32 ` Jens Axboe
2022-04-18  1:32   ` [dm-devel] " Jens Axboe

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