Pull MD fixes from Yu:
"- fix REQ_RAHEAD and REQ_NOWAIT IO err handling for raid1/10
- fix max_write_behind setting for dm-raid
- some minor cleanups"
* tag 'md-6.16-
20250530' of https://git.kernel.org/pub/scm/linux/kernel/git/mdraid/linux:
md/md-bitmap: remove parameter slot from bitmap_create()
md/md-bitmap: cleanup bitmap_ops->startwrite()
md/dm-raid: remove max_write_behind setting limit
md/md-bitmap: fix dm-raid max_write_behind setting
md/raid1,raid10: don't handle IO error for REQ_RAHEAD and REQ_NOWAIT