Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Al Viro , Miklos Szeredi Subject: [PATCH 3.19 039/123] fuse: notify: dont move pages Date: Tue, 24 Mar 2015 16:45:48 +0100 Message-Id: <20150324154425.847822807@linuxfoundation.org> In-Reply-To: <20150324154423.655554012@linuxfoundation.org> References: <20150324154423.655554012@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Miklos Szeredi commit 0d2783626a53d4c922f82d51fa675cb5d13f0d36 upstream. fuse_try_move_page() is not prepared for replacing pages that have already been read. Reported-by: Al Viro Signed-off-by: Miklos Szeredi Signed-off-by: Greg Kroah-Hartman --- fs/fuse/dev.c | 3 +++ 1 file changed, 3 insertions(+) --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -1797,6 +1797,9 @@ 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);