Commit 78df56cc authored Feb 26, 2015 by Miklos Szeredi Committed by Sasha Levin Mar 28, 2015

fuse: notify: don't move pages



[ Upstream commit 0d2783626a53d4c922f82d51fa675cb5d13f0d36 ]

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

Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

parent 95254735

fs/fuse/dev.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -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);