linux/Documentation/block, branch v5.2

block/switching-sched.txt: Update to blk-mq schedulers

2019-06-13T09:00:30Z

Remove references to CFQ and legacy block layer which are gone. Update example with what's available under blk-mq. Signed-off-by: Andreas Herrmann Signed-off-by: Jens Axboe

block: null: Add documentation for "zone_nr_conv" param

2019-04-09T14:18:23Z

zone_nr_conv module parameter was introduced by a commit ea2c18e1("null_blk: Add conventional zone configuration for zoned support"). This patch describes "zone_nr_conv" module parameter to the document. Reviewed-by: Chaitanya Kulkarni Signed-off-by: Minwoo Im Signed-off-by: Jens Axboe

doc, block, bfq: add information on bfq execution time

2019-04-01T14:15:40Z

The execution time of BFQ has been slightly lowered. Report the new execution time in BFQ documentation. Signed-off-by: Paolo Valente Signed-off-by: Jens Axboe

block: document usage of bio iterator helpers

2019-02-15T15:40:12Z

Now multi-page bvec is supported, some helpers may return page by page, meantime some may return segment by segment, this patch documents the usage. Reviewed-by: Christoph Hellwig Reviewed-by: Omar Sandoval Signed-off-by: Ming Lei Signed-off-by: Jens Axboe

block: doc: add slice_idle_us to bfq documentation

2019-01-09T14:38:48Z

Of the tunables available for the bfq I/O scheduler, the only one missing from the documentation in 'Documentation/block/bfq-iosched.txt' is slice_idle_us. Add this tunable to the documentation and a short explanation of its purpose. Acked-by: Paolo Valente Signed-off-by: John Pittman Signed-off-by: Jens Axboe

null_blk: add zoned config support information

2019-01-06T17:58:27Z

If the kernel is built without CONFIG_BLK_DEV_ZONED, a modprobe of the null_blk driver with zoned=1 fails with 'Invalid argument'. This can be confusing to users, prompting a search as to why the parameter is invalid. To assist in that search, add a bit more information to the failure, additionally adding to the documentation that CONFIG_BLK_DEV_ZONED is needed for zoned=1. Reviewed-by: Bart Van Assche Signed-off-by: John Pittman Added null_blk prefix to error message. Signed-off-by: Jens Axboe

block: add documentation for io_timeout

2019-01-05T02:19:51Z

Add documentation for /sys/block//queue/io_timeout. Reviewed-by: Bart Van Assche Signed-off-by: Weiping Zhang Signed-off-by: Jens Axboe

block: update sysfs documentation

2018-12-17T02:53:06Z

Add the description of the zoned, nr_zones and chunk_sectors sysfs queue attributes to Documentation/block/queue-sysfs.txt. The description of the zoned and chunk_sector attributes are mostly copied from ABI/testing/sysfs-block (added a typo fix). While at it, also fix a typo in the description of the io_poll_delay attribute. nr_zones description is also added to ABI/testing/sysfs-block and contact email address updated for the zoned attribute. Signed-off-by: Damien Le Moal Signed-off-by: Jens Axboe

block: remove legacy IO schedulers

2018-11-07T20:42:32Z

Retain the deadline documentation, as that carries over to mq-deadline as well. Tested-by: Ming Lei Reviewed-by: Omar Sandoval Signed-off-by: Jens Axboe

block: remove legacy rq tagging

2018-11-07T20:42:32Z

It's now unused, kill it. Reviewed-by: Hannes Reinecke Tested-by: Ming Lei Reviewed-by: Omar Sandoval Signed-off-by: Jens Axboe