linux/drivers/block/null_blk, branch v6.0

null_blk: fix ida error handling in null_add_dev()

2022-08-02T23:22:41Z

There needs to be some error checking if ida_simple_get() fails. Also call ida_free() if there are errors later. Fixes: 94bc02e30fb8 ("nullb: use ida to manage index") Signed-off-by: Dan Carpenter Link: https://lore.kernel.org/r/YtEhXsr6vJeoiYhd@kili Signed-off-by: Jens Axboe

null_blk: add configfs variables for 2 options

2022-08-02T23:15:02Z

Allow setting via configfs these two options: no_sched shared_tag_bitmap Previously these could only be activated as module parameters. Still missing are: shared_tags timeout requeue init_hctx Signed-off-by: Vincent Fu Reviewed-by: Christoph Hellwig Link: https://lore.kernel.org/r/20220708174943.87787-3-vincent.fu@samsung.com [axboe: fold in nullb == NULL fix] Signed-off-by: Jens Axboe

null_blk: add module parameters for 4 options

2022-08-02T23:14:50Z

Add as module parameters these options: memory_backed discard mbps cache_size Previously these could only be set via configfs. Still missing is bad_blocks. The kernel test robot found a documentation formatting issue in v1 of this patch. Reported-by: kernel test robot Signed-off-by: Vincent Fu Link: https://lore.kernel.org/r/20220708174943.87787-2-vincent.fu@samsung.com Signed-off-by: Jens Axboe

block: null_blk: Use the bitmap API to allocate bitmaps

2022-08-02T23:14:44Z

Use bitmap_zalloc()/bitmap_free() instead of hand-writing them. It is less verbose and it improves the semantic. Signed-off-by: Christophe JAILLET Link: https://lore.kernel.org/r/7c4d3116ba843fc4a8ae557dd6176352a6cd0985.1656864320.git.christophe.jaillet@wanadoo.fr Signed-off-by: Jens Axboe

treewide: Rename enum req_opf into enum req_op

2022-07-14T18:14:30Z

The type name enum req_opf is misleading since it suggests that values of this type include both an operation type and flags. Since values of this type represent an operation only, change the type name into enum req_op. Convert the enum req_op documentation into kernel-doc format. Move a few definitions such that the enum req_op documentation occurs just above the enum req_op definition. The name "req_opf" was introduced by commit ef295ecf090d ("block: better op and flags encoding"). Cc: Christoph Hellwig Cc: Ming Lei Cc: Hannes Reinecke Cc: Damien Le Moal Cc: Johannes Thumshirn Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-2-bvanassche@acm.org Signed-off-by: Jens Axboe

block: move zone related fields to struct gendisk

2022-07-06T12:46:26Z

Move the zone related fields that are currently stored in struct request_queue to struct gendisk as these are part of the highlevel block layer API and are only used for non-passthrough I/O that requires the gendisk. Signed-off-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Reviewed-by: Damien Le Moal Reviewed-by: Johannes Thumshirn Link: https://lore.kernel.org/r/20220706070350.1703384-17-hch@lst.de Signed-off-by: Jens Axboe

block: replace blkdev_nr_zones with bdev_nr_zones

2022-07-06T12:46:26Z

Pass a block_device instead of a request_queue as that is what most callers have at hand. Signed-off-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Reviewed-by: Johannes Thumshirn Reviewed-by: Damien Le Moal Acked-by: Damien Le Moal Link: https://lore.kernel.org/r/20220706070350.1703384-12-hch@lst.de Signed-off-by: Jens Axboe

block: pass a gendisk to blk_queue_max_open_zones and blk_queue_max_active_zones

2022-07-06T12:46:26Z

Switch to a gendisk based API in preparation for moving all zone related fields from the request_queue to the gendisk. Signed-off-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Reviewed-by: Damien Le Moal Reviewed-by: Johannes Thumshirn Link: https://lore.kernel.org/r/20220706070350.1703384-11-hch@lst.de Signed-off-by: Jens Axboe

block: pass a gendisk to blk_queue_set_zoned

2022-07-06T12:46:26Z

Prepare for storing the zone related field in struct gendisk instead of struct request_queue. Signed-off-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Reviewed-by: Damien Le Moal Reviewed-by: Johannes Thumshirn Link: https://lore.kernel.org/r/20220706070350.1703384-7-hch@lst.de Signed-off-by: Jens Axboe

blk-mq: Drop blk_mq_ops.timeout 'reserved' arg

2022-07-06T12:33:53Z

With new API blk_mq_is_reserved_rq() we can tell if a request is from the reserved pool, so stop passing 'reserved' arg. There is actually only a single user of that arg for all the callback implementations, which can use blk_mq_is_reserved_rq() instead. This will also allow us to stop passing the same 'reserved' around the blk-mq iter functions next. Signed-off-by: John Garry Reviewed-by: Christoph Hellwig Reviewed-by: Bart Van Assche Reviewed-by: Hannes Reinecke Acked-by: Ulf Hansson # For MMC Reviewed-by: Martin K. Petersen Link: https://lore.kernel.org/r/1657109034-206040-4-git-send-email-john.garry@huawei.com Signed-off-by: Jens Axboe