linux-toradex.git/block/ioctl.c, branch v5.15-rc3

block: pass a gendisk to bdev_resize_partition

2021-08-12T16:31:36+00:00

bdev_resize_partition can only operate on the whole device.  Make that clear
by passing a gendisk instead of a block_device.

Signed-off-by: Christoph Hellwig 
Link: https://lore.kernel.org/r/20210810154512.1809898-5-hch@lst.de
Signed-off-by: Jens Axboe

block: pass a gendisk to bdev_del_partition

2021-08-12T16:31:35+00:00

bdev_del_partition can only operate on the whole device.  Make that clear
by passing a gendisk instead of a block_device.

Signed-off-by: Christoph Hellwig 
Link: https://lore.kernel.org/r/20210810154512.1809898-4-hch@lst.de
Signed-off-by: Jens Axboe

block: pass a gendisk to bdev_add_partition

2021-08-12T16:31:35+00:00

bdev_add_partition can only operate on the whole device.  Make that clear
by passing a gendisk instead of a block_device.

Signed-off-by: Christoph Hellwig 
Link: https://lore.kernel.org/r/20210810154512.1809898-3-hch@lst.de
Signed-off-by: Jens Axboe

block: remove the bd_bdi in struct block_device

2021-08-09T17:53:26+00:00

Just retrieve the bdi from the disk.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Jan Kara 
Reviewed-by: Johannes Thumshirn 
Link: https://lore.kernel.org/r/20210809141744.1203023-6-hch@lst.de
Signed-off-by: Jens Axboe

block: add ioctl to read the disk sequence number

2021-08-02T19:37:28+00:00

Add a new BLKGETDISKSEQ ioctl which retrieves the disk sequence number
from the genhd structure.

    # ./getdiskseq /dev/loop*
    /dev/loop0:     13
    /dev/loop0p1:   13
    /dev/loop0p2:   13
    /dev/loop0p3:   13
    /dev/loop1:     14
    /dev/loop1p1:   14
    /dev/loop1p2:   14
    /dev/loop2:     5
    /dev/loop3:     6

Reviewed-by: Christoph Hellwig 
Signed-off-by: Matteo Croce 
Tested-by: Luca Boccassi 
Link: https://lore.kernel.org/r/20210712230530.29323-4-mcroce@linux.microsoft.com
Signed-off-by: Jens Axboe

block: move bd_part_count to struct gendisk

2021-06-01T13:45:27+00:00

The bd_part_count value only makes sense for whole devices, so move it
to struct gendisk and give it a more descriptive name.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Hannes Reinecke 
Reviewed-by: Ming Lei 
Link: https://lore.kernel.org/r/20210525061301.2242282-7-hch@lst.de
Signed-off-by: Jens Axboe

block: return -EBUSY when there are open partitions in blkdev_reread_part

2021-04-21T16:49:37+00:00

The switch to go through blkdev_get_by_dev means we now ignore the
return value from bdev_disk_changed in __blkdev_get.  Add a manual
check to restore the old semantics.

Fixes: 4601b4b130de ("block: reopen the device in blkdev_reread_part")
Reported-by: Karel Zak 
Signed-off-by: Christoph Hellwig 
Link: https://lore.kernel.org/r/20210421160502.447418-1-hch@lst.de
Signed-off-by: Jens Axboe

block: reopen the device in blkdev_reread_part

2021-02-24T02:23:22+00:00

Historically the BLKRRPART ioctls called into the now defunct ->revalidate
method, which caused the sd driver to check if any media is present.
When the ->revalidate method was removed this revalidation was lost,
leading to lots of I/O errors when using the eject command.  Fix this by
reopening the device to rescan the partitions, and thus calling the
revalidation logic in the sd driver.

Fixes: 471bd0af544b ("sd: use bdev_check_media_change")
Reported--by: Tom Seewald 
Signed-off-by: Christoph Hellwig 
Tested-by: Tom Seewald 
Reviewed-by: Ming Lei 
Reviewed-by: Minwoo Im 
Signed-off-by: Jens Axboe

block: move the policy field to struct block_device

2020-12-01T21:53:40+00:00

Move the policy field to struct block_device and rename it to the
more descriptive bd_read_only.  Also turn the field into a bool as it
is used as such.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Jan Kara 
Reviewed-by: Hannes Reinecke 
Signed-off-by: Jens Axboe

block: remove i_bdev

2020-12-01T21:53:39+00:00

Switch the block device lookup interfaces to directly work with a dev_t
so that struct block_device references are only acquired by the
blkdev_get variants (and the blk-cgroup special case).  This means that
we now don't need an extra reference in the inode and can generally
simplify handling of struct block_device to keep the lookups contained
in the core block layer code.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Jan Kara 
Reviewed-by: Hannes Reinecke 
Acked-by: Tejun Heo 
Acked-by: Coly Li 		[bcache]
Signed-off-by: Jens Axboe