Merge tag 'md-6.14-20250113' of https://git.kernel.org/pub/scm/linux/kernel/git/mdrai...

Pull MD updates from Song:

"1. Reintroduce md-linear, by Yu Kuai.
 2. md-bitmap refactor and fix, by Yu Kuai.
 3. Replace kmap_atomic with kmap_local_page, by David Reaver."

* tag 'md-6.14-20250113' of https://git.kernel.org/pub/scm/linux/kernel/git/mdraid/linux:
  md/md-bitmap: move bitmap_{start, end}write to md upper layer
  md/raid5: implement pers->bitmap_sector()
  md: add a new callback pers->bitmap_sector()
  md/md-bitmap: remove the last parameter for bimtap_ops->endwrite()
  md/md-bitmap: factor behind write counters out from bitmap_{start/end}write()
  md: Replace deprecated kmap_atomic() with kmap_local_page()
  md: reintroduce md-linear