Merge tag 'block-5.10-2020-10-12' of git://git.kernel.dk/linux-block

Pull block updates from Jens Axboe:

 - Series of merge handling cleanups (Baolin, Christoph)

 - Series of blk-throttle fixes and cleanups (Baolin)

 - Series cleaning up BDI, seperating the block device from the
   backing_dev_info (Christoph)

 - Removal of bdget() as a generic API (Christoph)

 - Removal of blkdev_get() as a generic API (Christoph)

 - Cleanup of is-partition checks (Christoph)

 - Series reworking disk revalidation (Christoph)

 - Series cleaning up bio flags (Christoph)

 - bio crypt fixes (Eric)

 - IO stats inflight tweak (Gabriel)

 - blk-mq tags fixes (Hannes)

 - Buffer invalidation fixes (Jan)

 - Allow soft limits for zone append (Johannes)

 - Shared tag set improvements (John, Kashyap)

 - Allow IOPRIO_CLASS_RT for CAP_SYS_NICE (Khazhismel)

 - DM no-wait support (Mike, Konstantin)

 - Request allocation improvements (Ming)

 - Allow md/dm/bcache to use IO stat helpers (Song)

 - Series improving blk-iocost (Tejun)

 - Various cleanups (Geert, Damien, Danny, Julia, Tetsuo, Tian, Wang,
   Xianting, Yang, Yufen, yangerkun)

* tag 'block-5.10-2020-10-12' of git://git.kernel.dk/linux-block: (191 commits)
  block: fix uapi blkzoned.h comments
  blk-mq: move cancel of hctx->run_work to the front of blk_exit_queue
  blk-mq: get rid of the dead flush handle code path
  block: get rid of unnecessary local variable
  block: fix comment and add lockdep assert
  blk-mq: use helper function to test hw stopped
  block: use helper function to test queue register
  block: remove redundant mq check
  block: invoke blk_mq_exit_sched no matter whether have .exit_sched
  percpu_ref: don't refer to ref->data if it isn't allocated
  block: ratelimit handle_bad_sector() message
  blk-throttle: Re-use the throtl_set_slice_end()
  blk-throttle: Open code __throtl_de/enqueue_tg()
  blk-throttle: Move service tree validation out of the throtl_rb_first()
  blk-throttle: Move the list operation after list validation
  blk-throttle: Fix IO hang for a corner case
  blk-throttle: Avoid tracking latency if low limit is invalid
  blk-throttle: Avoid getting the current time if tg->last_finish_time is 0
  blk-throttle: Remove a meaningless parameter for throtl_downgrade_state()
  block: Remove redundant 'return' statement
  ...

include/uapi/linux/blkzoned.h

@@ -93,12 +93,15 @@ enum blk_zone_report_flags {
  * @non_seq: Flag indicating that the zone is using non-sequential resources
  *           (for host-aware zoned block devices only).
  * @reset: Flag indicating that a zone reset is recommended.
- * @reserved: Padding to 64 B to match the ZBC/ZAC defined zone descriptor size.
+ * @resv: Padding for 8B alignment.
+ * @capacity: Zone usable capacity in 512 B sector units
+ * @reserved: Padding to 64 B to match the ZBC, ZAC and ZNS defined zone
+ *            descriptor size.
  *
- * start, len and wp use the regular 512 B sector unit, regardless of the
- * device logical block size. The overall structure size is 64 B to match the
- * ZBC/ZAC defined zone descriptor and allow support for future additional
- * zone information.
+ * start, len, capacity and wp use the regular 512 B sector unit, regardless
+ * of the device logical block size. The overall structure size is 64 B to
+ * match the ZBC, ZAC and ZNS defined zone descriptor and allow support for
+ * future additional zone information.
  */
 struct blk_zone {
 	__u64	start;		/* Zone start sector */
@@ -118,7 +121,7 @@ struct blk_zone {
  *
  * @sector: starting sector of report
  * @nr_zones: IN maximum / OUT actual
- * @reserved: padding to 16 byte alignment
+ * @flags: one or more flags as defined by enum blk_zone_report_flags.
  * @zones: Space to hold @nr_zones @zones entries on reply.
  *
  * The array of at most @nr_zones must follow this structure in memory.

include/uapi/linux/capability.h

@@ -288,6 +288,8 @@ struct vfs_ns_cap_data {
    processes and setting the scheduling algorithm used by another
    process. */
 /* Allow setting cpu affinity on other processes */
+/* Allow setting realtime ioprio class */
+/* Allow setting ioprio class on other processes */
 
 #define CAP_SYS_NICE         23