3.16.7-ckt10 -stable review patch.  If anyone has any objections, please let me 
know.

------------------

From: Miklos Szeredi <[email protected]>

commit 0d2783626a53d4c922f82d51fa675cb5d13f0d36 upstream.

fuse_try_move_page() is not prepared for replacing pages that have already
been read.

Reported-by: Al Viro <[email protected]>
Signed-off-by: Miklos Szeredi <[email protected]>
Signed-off-by: Luis Henriques <[email protected]>
---
 fs/fuse/dev.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index ca887314aba9..a221901813a1 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1721,6 +1721,9 @@ copy_finish:
 static int fuse_notify(struct fuse_conn *fc, enum fuse_notify_code code,
                       unsigned int size, struct fuse_copy_state *cs)
 {
+       /* Don't try to move pages (yet) */
+       cs->move_pages = 0;
+
        switch (code) {
        case FUSE_NOTIFY_POLL:
                return fuse_notify_poll(fc, size, cs);
--
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