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(parent: 22cd1bf) | patch
nfs: take i_mutex during direct I/O reads
authorChristoph Hellwig <hch@infradead.org>
Thu, 14 Nov 2013 16:50:33 +0000 (08:50 -0800)
committerTrond Myklebust <trond.myklebust@primarydata.com>
Mon, 13 Jan 2014 22:29:50 +0000 (17:29 -0500)
commitd0b9875d65c1abcc9d405d648660dfb919353959
treec896bd0432fcd79e625f51ab081ef2b21ddadb7etree | snapshot (tar.gz zip)
parent22cd1bf1480133518b3e5568466759ffde649b35commit | diff
nfs: take i_mutex during direct I/O reads

We'll need the i_mutex to prevent i_dio_count from incrementing while
truncate is waiting for it to reach zero, and protects against having
the pagecache repopulated after we flushed it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
fs/nfs/direct.c diff | blob | blame | history