From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 164B5C4360F for ; Mon, 18 Feb 2019 14:04:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D7FD721908 for ; Mon, 18 Feb 2019 14:04:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1550498683; bh=4C/lufUo4iMYPZ4ykF0iA1wOBaYOYy1ZMroD57Q4MRU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=RvI9u2XQwlcrkugFdxCu/kzxJ/yYeB4Z6XNEZsC9HIT8iQ4gXyxDFHX8RChSvWE0X R4JTjqmGi21+mwMMWuiqadKvLJ/dqJ/IlcjA/V6n0pKFPLtUMpySEylhHQqGlWE5Fy G1wlFStrfiTQ9m16TwXT2LWXXUx2Garre1hcaea4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389042AbfBROEm (ORCPT ); Mon, 18 Feb 2019 09:04:42 -0500 Received: from mail.kernel.org ([198.145.29.99]:47134 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389002AbfBROEi (ORCPT ); Mon, 18 Feb 2019 09:04:38 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 88B3E21901; Mon, 18 Feb 2019 14:04:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1550498678; bh=4C/lufUo4iMYPZ4ykF0iA1wOBaYOYy1ZMroD57Q4MRU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=S3W+NtODcVQjvE/nnAGlX2nDy37W9oA/2COR44m4Qe9AwC+4oBRDFGUfVYol0Cm3p NmwNGEh8f0LjIx2gmevrJkhai1IL9xaM0lj3OYOiY5Qxk63Qeqqfq858pxWW6ocAjk rwt9X0owHlM3z2gOMVLzTqwr7dU5QXdFJyl57K5A= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Miklos Szeredi Subject: [PATCH 4.4 086/143] fuse: decrement NR_WRITEBACK_TEMP on the right page Date: Mon, 18 Feb 2019 14:43:34 +0100 Message-Id: <20190218133532.208764580@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190218133529.099444112@linuxfoundation.org> References: <20190218133529.099444112@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Miklos Szeredi commit a2ebba824106dabe79937a9f29a875f837e1b6d4 upstream. NR_WRITEBACK_TEMP is accounted on the temporary page in the request, not the page cache page. Fixes: 8b284dc47291 ("fuse: writepages: handle same page rewrites") Cc: # v3.13 Signed-off-by: Miklos Szeredi Signed-off-by: Greg Kroah-Hartman --- fs/fuse/file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -1784,7 +1784,7 @@ static bool fuse_writepage_in_flight(str spin_unlock(&fc->lock); dec_wb_stat(&bdi->wb, WB_WRITEBACK); - dec_zone_page_state(page, NR_WRITEBACK_TEMP); + dec_zone_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);