K 10
svn:author
V 8
rmacklem
K 8
svn:date
V 27
2016-05-28T22:42:56.914438Z
K 7
svn:log
V 440
MFC: r299753
Fix fuse to use DIRECT_IO when required.

When a file is opened write-only and a partial block was written,
buffered I/O would try and read the whole block in. This would
result in a hung thread, since there was no open (fuse filehandle)
that allowed reading. This patch avoids the problem by forcing
DIRECT_IO for this case.
It also sets DIRECT_IO when the file system specifies the FN_DIRECTIO
flag in its reply to the open.

END