kernel/linux.git/block/blk.h, branch v5.15.208

blk-integrity: register sysfs attributes on struct device

2024-10-17T13:11:33+00:00

Upstream commit ff53cd52d9bdbf4074d2bbe9b591729997780bd3. The "integrity" kobject only acted as a holder for static sysfs entries. It also was embedded into struct gendisk without managing it, violating assumptions of the driver core. Instead register the sysfs entries directly onto the struct device. Also drop the now unused member integrity_kobj from struct gendisk. Suggested-by: Christoph Hellwig Signed-off-by: Thomas Weißschuh Reviewed-by: Christoph Hellwig Reviewed-by: Martin K. Petersen Link: https://lore.kernel.org/r/20230309-kobj_release-gendisk_integrity-v3-3-ceccb4493c46@weissschuh.net Signed-off-by: Jens Axboe [cascardo: conflict because of constification of integrity_ktype] [cascardo: struct gendisk is defined at include/linux/genhd.h] [cascardo: there is no blk_trace_attr_group] Signed-off-by: Thadeu Lima de Souza Cascardo Signed-off-by: Sasha Levin

block: bump max plugged deferred size from 16 to 32

2021-11-18T18:16:16+00:00

[ Upstream commit ba0ffdd8ce48ad7f7e85191cd29f9674caca3745 ] Particularly for NVMe with efficient deferred submission for many requests, there are nice benefits to be seen by bumping the default max plug count from 16 to 32. This is especially true for virtualized setups, where the submit part is more expensive. But can be noticed even on native hardware. Reduce the multiple queue factor from 4 to 2, since we're changing the default size. While changing it, move the defines into the block layer private header. These aren't values that anyone outside of the block layer uses, or should use. Signed-off-by: Jens Axboe Signed-off-by: Sasha Levin

block: keep q_usage_counter in atomic mode after del_gendisk

2021-10-16T03:02:54+00:00

Don't switch back to percpu mode to avoid the double RCU grace period when tearing down SCSI devices. After removing the disk only passthrough commands can be send anyway. Suggested-by: Ming Lei Signed-off-by: Christoph Hellwig Tested-by: Darrick J. Wong Link: https://lore.kernel.org/r/20210929071241.934472-6-hch@lst.de Tested-by: Yi Zhang Signed-off-by: Jens Axboe

block: drain file system I/O on del_gendisk

2021-10-16T03:02:50+00:00

Instead of delaying draining of file system I/O related items like the blk-qos queues, the integrity read workqueue and timeouts only when the request_queue is removed, do that when del_gendisk is called. This is important for SCSI where the upper level drivers that control the gendisk are separate entities, and the disk can be freed much earlier than the request_queue, or can even be unbound without tearing down the queue. Fixes: edb0872f44ec ("block: move the bdi from the request_queue to the gendisk") Reported-by: Ming Lei Signed-off-by: Christoph Hellwig Tested-by: Darrick J. Wong Link: https://lore.kernel.org/r/20210929071241.934472-5-hch@lst.de Tested-by: Yi Zhang Signed-off-by: Jens Axboe

block: split out operations on block special files

2021-09-07T14:39:29+00:00

Add a new block/fops.c for all the file and address_space operations that provide the block special file support. Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/r/20210907141303.1371844-2-hch@lst.de [axboe: correct trailing whitespace while at it] Signed-off-by: Jens Axboe

Merge tag 'io_uring-bio-cache.5-2021-08-30' of git://git.kernel.dk/linux-block

2021-08-31T02:30:30+00:00

Pull support for struct bio recycling from Jens Axboe: "This adds bio recycling support for polled IO, allowing quick reuse of a bio for high IOPS scenarios via a percpu bio_set list. It's good for almost a 10% improvement in performance, bumping our per-core IO limit from ~3.2M IOPS to ~3.5M IOPS" * tag 'io_uring-bio-cache.5-2021-08-30' of git://git.kernel.dk/linux-block: bio: improve kerneldoc documentation for bio_alloc_kiocb() block: provide bio_clear_hipri() helper block: use the percpu bio cache in __blkdev_direct_IO io_uring: enable use of bio alloc cache block: clear BIO_PERCPU_CACHE flag if polling isn't supported bio: add allocation cache abstraction fs: add kiocb alloc cache flag bio: optimize initialization of a bio

Merge tag 'for-5.15/block-2021-08-30' of git://git.kernel.dk/linux-block

2021-08-31T01:52:11+00:00

Pull block updates from Jens Axboe: "Nothing major in here - lots of good cleanups and tech debt handling, which is also evident in the diffstats. In particular: - Add disk sequence numbers (Matteo) - Discard merge fix (Ming) - Relax disk zoned reporting restrictions (Niklas) - Bio error handling zoned leak fix (Pavel) - Start of proper add_disk() error handling (Luis, Christoph) - blk crypto fix (Eric) - Non-standard GPT location support (Dmitry) - IO priority improvements and cleanups (Damien)o - blk-throtl improvements (Chunguang) - diskstats_show() stack reduction (Abd-Alrhman) - Loop scheduler selection (Bart) - Switch block layer to use kmap_local_page() (Christoph) - Remove obsolete disk_name helper (Christoph) - block_device refcounting improvements (Christoph) - Ensure gendisk always has a request queue reference (Christoph) - Misc fixes/cleanups (Shaokun, Oliver, Guoqing)" * tag 'for-5.15/block-2021-08-30' of git://git.kernel.dk/linux-block: (129 commits) sg: pass the device name to blk_trace_setup block, bfq: cleanup the repeated declaration blk-crypto: fix check for too-large dun_bytes blk-zoned: allow BLKREPORTZONE without CAP_SYS_ADMIN blk-zoned: allow zone management send operations without CAP_SYS_ADMIN block: mark blkdev_fsync static block: refine the disk_live check in del_gendisk mmc: sdhci-tegra: Enable MMC_CAP2_ALT_GPT_TEGRA mmc: block: Support alternative_gpt_sector() operation partitions/efi: Support non-standard GPT location block: Add alternative_gpt_sector() operation bio: fix page leak bio_add_hw_page failure block: remove CONFIG_DEBUG_BLOCK_EXT_DEVT block: remove a pointless call to MINOR() in device_add_disk null_blk: add error handling support for add_disk() virtio_blk: add error handling support for add_disk() block: add error handling for device_add_disk / add_disk block: return errors from disk_alloc_events block: return errors from blk_integrity_add block: call blk_register_queue earlier in device_add_disk ...

block: provide bio_clear_hipri() helper

2021-08-23T19:45:15+00:00

Any case that turns off REQ_HIPRI must also clear BIO_PERCPU_CACHE, as non-polled IO may complete through hard/soft IRQ and hence isn't safe for our polled bio alloc cache. Provide a helper that does just that, and use it in the merging code as well if we split a bio and turn off polling. Fixes: be863b9e4348 ("block: clear BIO_PERCPU_CACHE flag if polling isn't supported") Reported-by: Keith Busch Signed-off-by: Jens Axboe

block: return errors from disk_alloc_events

2021-08-23T18:55:45+00:00

Prepare for proper error handling in add_disk. Signed-off-by: Luis Chamberlain [hch: split from a larger patch] Signed-off-by: Christoph Hellwig Reviewed-by: Hannes Reinecke Link: https://lore.kernel.org/r/20210818144542.19305-9-hch@lst.de Signed-off-by: Jens Axboe

block: return errors from blk_integrity_add

2021-08-23T18:55:45+00:00