• Linus Torvalds's avatar
    Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm · 0fcc3ab2
    Linus Torvalds authored
    Pull libnvdimm fixes from Dan Williams:
     "Incremental fixes and a small feature addition on top of the main
      libnvdimm 4.12 pull request:
       - Geert noticed that tinyconfig was bloated by BLOCK selecting DAX.
         The size regression is fixed by moving all dax helpers into the
         dax-core and only specifying "select DAX" for FS_DAX and
         dax-capable drivers. He also asked for clarification of the
         NR_DEV_DAX config option which, on closer look, does not need to be
         a config option at all. Mike also throws in a DEV_DAX_PMEM fixup
         for good measure.
       - Ben's attention to detail on -stable patch submissions caught a
         case where the recent fixes to arch_copy_from_iter_pmem() missed a
         condition where we strand dirty data in the cache. This is tagged
         for -stable and will also be included in the rework of the pmem api
         to a proposed {memcpy,copy_user}_flushcache() interface for 4.13.
       - Vishal adds a feature that missed the initial pull due to pending
         review feedback. It allows the kernel to clear media errors when
         initializing a BTT (atomic sector update driver) instance on a pmem
       - Ross noticed that the dax_device + dax_operations conversion broke
         __dax_zero_page_range(). The nvdimm unit tests fail to check this
         path, but xfstests immediately trips over it. No excuse for missing
         this before submitting the 4.12 pull request.
      These all pass the nvdimm unit tests and an xfstests spot check. The
      set has received a build success notification from the kbuild robot"
    * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
      filesystem-dax: fix broken __dax_zero_page_range() conversion
      libnvdimm, btt: ensure that initializing metadata clears poison
      libnvdimm: add an atomic vs process context flag to rw_bytes
      x86, pmem: Fix cache flushing for iovec write < 8 bytes
      device-dax: kill NR_DEV_DAX
      block, dax: move "select DAX" from BLOCK to FS_DAX
      device-dax: Tell kbuild DEV_DAX_PMEM depends on DEV_DAX
blkdev.h 57 KB