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authorLinus Torvalds <torvalds@linux-foundation.org>2016-05-26 20:00:28 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-26 20:00:28 -0700
commit478a1469a7d27fe6b2f85fc801ecdeb8afc836e6 (patch)
tree9b1eb10e1a0567413443281387b09d02b514b5ec /init
parent315227f6da389f3a560f27f7777080857278e1b4 (diff)
parent4d9a2c8746671efbb0c27d3ae28c7474597a7aad (diff)
downloadlinux-478a1469a7d27fe6b2f85fc801ecdeb8afc836e6.tar.gz
Merge tag 'dax-locking-for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull DAX locking updates from Ross Zwisler: "Filesystem DAX locking for 4.7 - We use a bit in an exceptional radix tree entry as a lock bit and use it similarly to how page lock is used for normal faults. This fixes races between hole instantiation and read faults of the same index. - Filesystem DAX PMD faults are disabled, and will be re-enabled when PMD locking is implemented" * tag 'dax-locking-for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: dax: Remove i_mmap_lock protection dax: Use radix tree entry lock to protect cow faults dax: New fault locking dax: Allow DAX code to replace exceptional entries dax: Define DAX lock bit for radix tree exceptional entry dax: Make huge page handling depend of CONFIG_BROKEN dax: Fix condition for filling of PMD holes
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