tree 27c23ef96945d54c9aaf1bea28f4f5dc7bfd0120
parent f6192cb7429211bfaac1178c35607b0c989900b8
parent 06282373ff57a2b82621be4f84f981e1b0a4eb28
author Linus Torvalds <torvalds@linux-foundation.org> 1565554510 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1565554510 -0700
mergetag object 06282373ff57a2b82621be4f84f981e1b0a4eb28
 type commit
 tag dax-fixes-5.3-rc4
 tagger Dan Williams <dan.j.williams@intel.com> 1565548978 -0700
 
 dax fixes v5.3-rc4
 
 - Fix dax_layout_busy_page() to not discard private cow pages of fs/dax
   private mappings.
 
 - Update the memremap_pages core to properly cleanup on behalf of
   internal reference-count users like device-dax.
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Merge tag 'dax-fixes-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Pull dax fixes from Dan Williams:
 "A filesystem-dax and device-dax fix for v5.3.

  The filesystem-dax fix is tagged for stable as the implementation has
  been mistakenly throwing away all cow pages on any truncate or hole
  punch operation as part of the solution to coordinate device-dma vs
  truncate to dax pages.

  The device-dax change fixes up a regression this cycle from the
  introduction of a common 'internal per-cpu-ref' implementation.

  Summary:

   - Fix dax_layout_busy_page() to not discard private cow pages of
     fs/dax private mappings.

   - Update the memremap_pages core to properly cleanup on behalf of
     internal reference-count users like device-dax"

* tag 'dax-fixes-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  mm/memremap: Fix reuse of pgmap instances with internal references
  dax: dax_layout_busy_page() should not unmap cow pages