Trond Myklebust 919e3bd9a8
NFS: Ensure we commit after writeback is complete ...
If the page cache is being flushed, then we want to ensure that we
do start a commit once the pages are done being flushed.
If we just wait until all I/O is done to that file, we can end up
livelocking until the balance_dirty_pages() mechanism puts its
foot down and forces I/O to stop.
So instead we do more or less the same thing that O_DIRECT does,
and set up a counter to tell us when the flush is done,
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com >
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com >
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Merge branches 'for-4.11/upstream-fixes', 'for-4.12/accutouch', 'for-4.12/cp2112', 'for-4.12/hid-core-null-state-handling', 'for-4.12/hiddev', 'for-4.12/i2c-hid', 'for-4.12/innomedia', 'for-4.12/logitech-hidpp-battery-power-supply', 'for-4.12/multitouch', 'for-4.12/nti', 'for-4.12/upstream' and 'for-4.12/wacom' into for-linus
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