From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sun, 20 Sep 2020 22:01:57 +0000 (-0700)
Subject: Merge tag 'libnvdimm-fixes-5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel... 
X-Git-Tag: v5.10.7~1629
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4a123dbaf3a6efca717e3a5ac8176fd4897456b2;p=platform%2Fkernel%2Flinux-rpi.git

Merge tag 'libnvdimm-fixes-5.9-rc6' of git://git./linux/kernel/git/nvdimm/nvdimm

Pull libnvdimm fixes from Dan Williams:
 "A handful of fixes to address a string of mistakes in the mechanism
  for device-mapper to determine if its component devices are dax
  capable.

   - Fix an original bug in device-mapper table reference counting when
     interrogating dax capability in the component device. This bug was
     hidden by the following bug.

   - Fix device-mapper to use the proper helper (dax_supported() instead
     of the leaf helper generic_fsdax_supported()) to determine dax
     operation of a stacked block device configuration. The original
     implementation is only valid for one level of dax-capable block
     device stacking. This bug was discovered while fixing the below
     regression.

   - Fix an infinite recursion regression introduced by broken attempts
     to quiet the generic_fsdax_supported() path and make it bail out
     before logging "dax capability not found" errors"

* tag 'libnvdimm-fixes-5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  dax: Fix stack overflow when mounting fsdax pmem device
  dm: Call proper helper to determine dax support
  dm/dax: Fix table reference counts
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4a123dbaf3a6efca717e3a5ac8176fd4897456b2