fuse: decrement NR_WRITEBACK_TEMP on the right page



NR_WRITEBACK_TEMP is accounted on the temporary page in the request, not
the page cache page.

Fixes: 8b284dc4 ("fuse: writepages: handle same page rewrites")
Cc: <stable@vger.kernel.org> # v3.13
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

parent 9509941e

fs/fuse/file.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1782,7 +1782,7 @@ static bool fuse_writepage_in_flight(struct fuse_req *new_req,
		spin_unlock(&fc->lock);

		dec_wb_stat(&bdi->wb, WB_WRITEBACK);
		dec_node_page_state(page, NR_WRITEBACK_TEMP);
		dec_node_page_state(new_req->pages[0], NR_WRITEBACK_TEMP);
		wb_writeout_inc(&bdi->wb);
		fuse_writepage_free(fc, new_req);
		fuse_request_free(new_req);