commit 1f90ee27461e31a1c18e5d819f6ea6f5c7304b16
author Christoph Hellwig <hch@infradead.org> Thu Nov 14 08:50:30 2013 -0800
committer Trond Myklebust <trond.myklebust@primarydata.com> Mon Jan 13 17:29:49 2014 -0500
tree 96a85b91576188ed1921c672d96adabe3a025bfa
parent 2a009ec98cce440c0992fc9a2353e96cdb0b048b

nfs: increment i_dio_count for reads, too

i_dio_count is used to protect dio access against truncate.  We want
to make sure there are no dio reads pending either when doing a
truncate.  I suspect on plain NFS things might work even without
this, but once we use a pnfs layout driver that access backing devices
directly things will go bad without the proper synchronization.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>