Merge tag 'block-5.16-2021-11-13' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "Set of fixes that should go into this merge window:

   - ioctl vs read data race fixes (Shin'ichiro)

   - blkcg use-after-free fix (Laibin)

   - Last piece of the puzzle for add_disk() error handling, enable
     __must_check for (Luis)

   - Request allocation fixes (Ming)

   - Misc fixes (me)"

* tag 'block-5.16-2021-11-13' of git://git.kernel.dk/linux-block:
  blk-mq: fix filesystem I/O request allocation
  blkcg: Remove extra blkcg_bio_issue_init
  block: Hold invalidate_lock in BLKRESETZONE ioctl
  blk-mq: rename blk_attempt_bio_merge
  blk-mq: don't grab ->q_usage_counter in blk_mq_sched_bio_merge
  block: fix kerneldoc for disk_register_independent_access__ranges()
  block: add __must_check for *add_disk*() callers
  block: use enum type for blk_mq_alloc_data->rq_flags
  block: Hold invalidate_lock in BLKZEROOUT ioctl
  block: Hold invalidate_lock in BLKDISCARD ioctl