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=-6.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,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 37264C43441 for ; Sun, 11 Nov 2018 22:50:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EE2B421508 for ; Sun, 11 Nov 2018 22:50:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="JDYFWYD1" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EE2B421508 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391027AbeKLIkq (ORCPT ); Mon, 12 Nov 2018 03:40:46 -0500 Received: from mail.kernel.org ([198.145.29.99]:55530 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404206AbeKLIXJ (ORCPT ); Mon, 12 Nov 2018 03:23:09 -0500 Received: from localhost (unknown [206.108.79.134]) (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 3BBD8223DD; Sun, 11 Nov 2018 22:33:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1541975592; bh=i3KjRKDLE0I+87vBD8iJuuJyZQT0dfJXx4tz4WTURpg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=JDYFWYD1GVyRt12qFMJg/mbTOswei6X6VlGYphfiLIXxFPd8dh+q73Rq0UuWp38pD soefPe6wdYTPN29G0C1TguY99NGQNMFDPHoGi3gLGlHol6YUeO6jzD9XXnwKJjCqU2 xoJEilLOTb+ZIYypZFBIDc0PPfhSduqILL3jpSX8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Liu Bo , Josef Bacik , David Sterba Subject: [PATCH 4.14 206/222] btrfs: reset max_extent_size on clear in a bitmap Date: Sun, 11 Nov 2018 14:25:03 -0800 Message-Id: <20181111221705.082892977@linuxfoundation.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181111221647.665769131@linuxfoundation.org> References: <20181111221647.665769131@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review 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 4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Josef Bacik commit 553cceb49681d60975d00892877d4c871bf220f9 upstream. We need to clear the max_extent_size when we clear bits from a bitmap since it could have been from the range that contains the max_extent_size. CC: stable@vger.kernel.org # 4.4+ Reviewed-by: Liu Bo Signed-off-by: Josef Bacik Signed-off-by: David Sterba Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/free-space-cache.c | 2 ++ 1 file changed, 2 insertions(+) --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -1710,6 +1710,8 @@ static inline void __bitmap_clear_bits(s bitmap_clear(info->bitmap, start, count); info->bytes -= bytes; + if (info->max_extent_size > ctl->unit) + info->max_extent_size = 0; } static void bitmap_clear_bits(struct btrfs_free_space_ctl *ctl,