linux.git/include/linux/blkdev.h, branch v5.15.187

block: return unsigned int from bdev_io_min

2024-12-14T18:51:20+00:00

[ Upstream commit 46fd48ab3ea3eb3bb215684bd66ea3d260b091a9 ]

The underlying limit is defined as an unsigned int, so return that from
bdev_io_min as well.

Fixes: ac481c20ef8f ("block: Topology ioctls")
Signed-off-by: Christoph Hellwig 
Reviewed-by: Martin K. Petersen 
Reviewed-by: John Garry 
Link: https://lore.kernel.org/r/20241119072602.1059488-1-hch@lst.de
Signed-off-by: Jens Axboe 
Signed-off-by: Sasha Levin

block: use "unsigned long" for blk_validate_block_size().

2024-09-04T11:23:28+00:00

commit 37ae5a0f5287a52cf51242e76ccf198d02ffe495 upstream.

Since lo_simple_ioctl(LOOP_SET_BLOCK_SIZE) and ioctl(NBD_SET_BLKSIZE) pass
user-controlled "unsigned long arg" to blk_validate_block_size(),
"unsigned long" should be used for validation.

Signed-off-by: Tetsuo Handa 
Reviewed-by: Christoph Hellwig 
Link: https://lore.kernel.org/r/9ecbf057-4375-c2db-ab53-e4cc0dff953d@i-love.sakura.ne.jp
Signed-off-by: Jens Axboe 
Signed-off-by: David Hunter 
Signed-off-by: Greg Kroah-Hartman

block: make BLK_DEF_MAX_SECTORS unsigned

2024-01-25T22:52:40+00:00

[ Upstream commit 0a26f327e46c203229e72c823dfec71a2b405ec5 ]

This is used as an unsigned value, so define it that way to avoid
having to cast it.

Suggested-by: Christoph Hellwig 
Signed-off-by: Keith Busch 
Reviewed-by: Christoph Hellwig 
Reviewed-by: Bart Van Assche 
Reviewed-by: Martin K. Petersen 
Link: https://lore.kernel.org/r/20230105205146.3610282-2-kbusch@meta.com
Signed-off-by: Jens Axboe 
Stable-dep-of: 9a9525de8654 ("null_blk: don't cap max_hw_sectors to BLK_DEF_MAX_SECTORS")
Signed-off-by: Sasha Levin

block: add bdev_max_segments() helper

2022-08-31T15:16:34+00:00

commit 65ea1b66482f415d51cd46515b02477257330339 upstream

Add bdev_max_segments() like other queue parameters.

Reviewed-by: Johannes Thumshirn 
Reviewed-by: Jens Axboe 
Reviewed-by: Christoph Hellwig 
Signed-off-by: Naohiro Aota 
Signed-off-by: David Sterba 
Signed-off-by: Greg Kroah-Hartman

block: add a bdev_max_zone_append_sectors helper

2022-08-31T15:16:34+00:00

commit 2aba0d19f4d8c8929b4b3b94a9cfde2aa20e6ee2 upstream

Add a helper to check the max supported sectors for zone append based on
the block_device instead of having to poke into the block layer internal
request_queue.

Signed-off-by: Christoph Hellwig 
Acked-by: Damien Le Moal 
Reviewed-by: Martin K. Petersen 
Reviewed-by: Johannes Thumshirn 
Reviewed-by: Chaitanya Kulkarni 
Link: https://lore.kernel.org/r/20220415045258.199825-16-hch@lst.de
Signed-off-by: Jens Axboe 
Signed-off-by: Greg Kroah-Hartman

block: remove the struct blk_queue_ctx forward declaration

2022-08-17T12:24:24+00:00

[ Upstream commit 9778ac77c2027827ffdbb33d3e936b3a0ae9f0f9 ]

This type doesn't exist at all, so no need to forward declare it.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Johannes Thumshirn 
Link: https://lore.kernel.org/r/20210920123328.1399408-12-hch@lst.de
Signed-off-by: Jens Axboe 
Signed-off-by: Sasha Levin

block: simplify the block device syncing code

2022-04-27T12:38:50+00:00

[ Upstream commit 1e03a36bdff4709c1bbf0f57f60ae3f776d51adf ]

Get rid of the indirections and just provide a sync_bdevs
helper for the generic sync code.

Signed-off-by: Christoph Hellwig 
Link: https://lore.kernel.org/r/20211019062530.2174626-8-hch@lst.de
Signed-off-by: Jens Axboe 
Signed-off-by: Sasha Levin

block: remove __sync_blockdev

2022-04-27T12:38:50+00:00

[ Upstream commit 70164eb6ccb76ab679b016b4b60123bf4ec6c162 ]

Instead offer a new sync_blockdev_nowait helper for the !wait case.
This new helper is exported as it will grow modular callers in a bit.

Signed-off-by: Christoph Hellwig 
Link: https://lore.kernel.org/r/20211019062530.2174626-3-hch@lst.de
Signed-off-by: Jens Axboe 
Signed-off-by: Sasha Levin

block: fix surprise removal for drivers calling blk_set_queue_dying

2022-02-23T11:03:15+00:00

commit 7a5428dcb7902700b830e912feee4e845df7c019 upstream.

Various block drivers call blk_set_queue_dying to mark a disk as dead due
to surprise removal events, but since commit 8e141f9eb803 that doesn't
work given that the GD_DEAD flag needs to be set to stop I/O.

Replace the driver calls to blk_set_queue_dying with a new (and properly
documented) blk_mark_disk_dead API, and fold blk_set_queue_dying into the
only remaining caller.

Fixes: 8e141f9eb803 ("block: drain file system I/O on del_gendisk")
Reported-by: Markus Blöchl 
Signed-off-by: Christoph Hellwig 
Reviewed-by: Sagi Grimberg 
Link: https://lore.kernel.org/r/20220217075231.1140-1-hch@lst.de
Signed-off-by: Jens Axboe 
Signed-off-by: Greg Kroah-Hartman

block: add bio_start_io_acct_time() to control start_time

2022-02-01T16:27:03+00:00

commit e45c47d1f94e0cc7b6b079fdb4bcce2995e2adc4 upstream.

bio_start_io_acct_time() interface is like bio_start_io_acct() that
allows start_time to be passed in. This gives drivers the ability to
defer starting accounting until after IO is issued (but possibily not
entirely due to bio splitting).

Reviewed-by: Christoph Hellwig 
Signed-off-by: Mike Snitzer 
Link: https://lore.kernel.org/r/20220128155841.39644-2-snitzer@redhat.com
Signed-off-by: Jens Axboe 
Signed-off-by: Greg Kroah-Hartman