kernel/git/stable/linux.git/block/partitions, branch linux-5.11.y

block: fix bd_size_lock use

2021-01-28T14:31:50+00:00

Some block device drivers, e.g. the skd driver, call set_capacity() with IRQ disabled. This results in lockdep ito complain about inconsistent lock states ("inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage") because set_capacity takes a block device bd_size_lock using the functions spin_lock() and spin_unlock(). Ensure a consistent locking state by replacing these calls with spin_lock_irqsave() and spin_lock_irqrestore(). The same applies to bdev_set_nr_sectors(). With this fix, all lockdep complaints are resolved. Signed-off-by: Damien Le Moal Signed-off-by: Jens Axboe

block: Fix an error handling in add_partition

2021-01-25T04:35:58+00:00

Once we have called device_initialize(), we should use put_device() to give up the reference on error, just like what we have done on failure of device_add(). Signed-off-by: Dinghao Liu Reviewed-by: Christoph Hellwig Signed-off-by: Jens Axboe

block: update some copyrights

2020-12-22T15:43:06+00:00

Update copyrights for files that have gotten some major rewrites lately. Signed-off-by: Christoph Hellwig Reviewed-by: Johannes Thumshirn Signed-off-by: Jens Axboe

block: merge struct block_device and struct hd_struct

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

Instead of having two structures that represent each block device with different life time rules, merge them into a single one. This also greatly simplifies the reference counting rules, as we can use the inode reference count as the main reference count for the new struct block_device, with the device model reference front ending it for device model interaction. Signed-off-by: Christoph Hellwig Reviewed-by: Jan Kara Reviewed-by: Hannes Reinecke Signed-off-by: Jens Axboe

block: switch disk_part_iter_* to use a struct block_device

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

Switch the partition iter infrastructure to iterate over block_device references instead of hd_struct ones mostly used to get at the block_device. Signed-off-by: Christoph Hellwig Reviewed-by: Jan Kara Reviewed-by: Hannes Reinecke Signed-off-by: Jens Axboe

block: pass a block_device to blk_alloc_devt

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

Pass the block_device actually needed instead of the hd_struct. Signed-off-by: Christoph Hellwig Reviewed-by: Jan Kara Reviewed-by: Hannes Reinecke Signed-off-by: Jens Axboe

block: remove the partno field from struct hd_struct

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

Just use the bd_partno field in struct block_device everywhere. Signed-off-by: Christoph Hellwig Reviewed-by: Jan Kara Reviewed-by: Hannes Reinecke Signed-off-by: Jens Axboe

block: switch partition lookup to use struct block_device

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

Use struct block_device to lookup partitions on a disk. This removes all usage of struct hd_struct from the I/O path. Signed-off-by: Christoph Hellwig Reviewed-by: Jan Kara Reviewed-by: Hannes Reinecke Acked-by: Coly Li [bcache] Acked-by: Chao Yu [f2fs] Signed-off-by: Jens Axboe

block: allocate struct hd_struct as part of struct bdev_inode

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

Allocate hd_struct together with struct block_device to pre-load the lifetime rule changes in preparation of merging the two structures. Note that part0 was previously embedded into struct gendisk, but is a separate allocation now, and already points to the block_device instead of the hd_struct. The lifetime of struct gendisk is still controlled by the struct device embedded in the part0 hd_struct. Signed-off-by: Christoph Hellwig Reviewed-by: Jan Kara Reviewed-by: Hannes Reinecke 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