user/sven/linux.git/block/ioctl.c, branch v5.11.10

block: reopen the device in blkdev_reread_part

2021-03-04T11:15:16Z

[ Upstream commit 4601b4b130de2329fe06df80ed5d77265f2058e5 ] 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 Signed-off-by: Sasha Levin

block: move the policy field to struct block_device

2020-12-01T21:53:40Z

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

2020-12-01T21:53:39Z

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

block: remove a superflous check in blkpg_do_ioctl

2020-12-01T21:53:39Z

sector_t is now always a u64, so this check is not needed. Signed-off-by: Christoph Hellwig Reviewed-by: Jan Kara Reviewed-by: Hannes Reinecke Reviewed-by: Johannes Thumshirn Acked-by: Tejun Heo Signed-off-by: Jens Axboe

block: remove __blkdev_driver_ioctl

2020-11-16T15:14:29Z

Just open code it in the few callers. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

block: remove set_device_ro

2020-11-16T15:14:29Z

Fold set_device_ro into its only remaining caller. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

block: don't call into the driver for BLKROSET

2020-11-16T15:14:29Z

Now that all drivers that want to hook into setting or clearing the read-only flag use the set_read_only method, this code can be removed. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

block: add a new set_read_only method

2020-11-16T15:14:29Z

Add a new method to allow for driver-specific processing when setting or clearing the block device read-only state. This allows to replace the cumbersome and error-prone override of the whole ioctl implementation. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

block: don't call into the driver for BLKFLSBUF

2020-11-16T15:14:29Z

BLKFLSBUF is entirely contained in the block core, and there is no good reason to give the driver a hook into processing it. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

block: add a bdev_is_partition helper

2020-09-25T14:18:57Z

Add a littler helper to make the somewhat arcane bd_contains checks a little more obvious. Signed-off-by: Christoph Hellwig Acked-by: Ulf Hansson Signed-off-by: Jens Axboe