tree fd6edd1d18bc1a6633a7e968089d089dd4aec6cd
parent 9e1681c2e74bdd84bad6f74b47a4d88ad2f433df
author Trond Myklebust <trond.myklebust@primarydata.com> 1427324333 -0400
committer Trond Myklebust <trond.myklebust@primarydata.com> 1427474377 -0400

NFSv4.1/pnfs: Ensure that writes respect the O_SYNC flag when doing O_DIRECT

If the caller does not specify the O_SYNC flag, then it is legitimate
to return from O_DIRECT without doing a pNFS layoutcommit operation.
However if the file is opened O_DIRECT|O_SYNC then we'd better get it
right.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>