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Subject[GIT PULL] xfs: fixes for 4.16-rc5
Hi Linus,

Here's a few more fixes for locking problems and incorrect copy on
write behaviors on 4.16. It should merge cleanly, but please let me
know if it doesn't.


The following changes since commit 5b4c845ea4f4b86c43096eb924354c83a2e26f3c:

xfs: fix potential memory leak in mount option parsing (2018-02-26 10:02:13 -0800)

are available in the git repository at:

git:// tags/xfs-4.16-fixes-3

for you to fetch changes up to ff3d8b9c4cb95180ae6ef9eed28409840525b9fa:

xfs: don't block on the ilock for RWF_NOWAIT (2018-03-01 14:12:45 -0800)

Changes since last update:
- Fix some iomap locking problems
- Don't allocate cow blocks when we're zeroing file data

Christoph Hellwig (3):
xfs: don't allocate COW blocks for zeroing holes or unwritten extents
xfs: don't start out with the exclusive ilock for direct I/O
xfs: don't block on the ilock for RWF_NOWAIT

fs/xfs/xfs_iomap.c | 42 ++++++++++++++++++++++++++++++------------
1 file changed, 30 insertions(+), 12 deletions(-)

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