From patchwork Tue Sep 11 17:57:52 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Josef Bacik X-Patchwork-Id: 10596093 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B65D014BD for ; Tue, 11 Sep 2018 17:58:51 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A06F329B9F for ; Tue, 11 Sep 2018 17:58:51 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 952E629BA1; Tue, 11 Sep 2018 17:58:51 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 47AFE29B9F for ; Tue, 11 Sep 2018 17:58:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728321AbeIKW7P (ORCPT ); Tue, 11 Sep 2018 18:59:15 -0400 Received: from mail-qk1-f196.google.com ([209.85.222.196]:36875 "EHLO mail-qk1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728113AbeIKW7P (ORCPT ); Tue, 11 Sep 2018 18:59:15 -0400 Received: by mail-qk1-f196.google.com with SMTP id f17-v6so17317468qkh.4 for ; Tue, 11 Sep 2018 10:58:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=toxicpanda-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=z3nhKV1wBqQcfXnDoMHMl2GEjOrb6h1HQ06C9nkbnUE=; b=M12o/bLnbY2GhUqyCp5BKk17Q4Rv/6l++dS8j2esuqTiGSstrir+c/C9V096ndUPvu D2AS032iuzus+9YNYufzOxqgy7ciMIKfsCgndRmBrvh0fvL1g+4AlO/uMbXmZYHKt/k2 TiXEo+NxQhIhMq5lbNSWE+xsNf9mYm2UhRRU0B6PyksLgLa2vW+buTTLcLyA9bT36Zo/ LMa2kVp17xNHaSDBDBH50Gbg/9IjqSopZtyQCBbEGa6y0IuvPTNq4fLNsgKpljKr7Y8q Ct3/OfEOIWcF0CrRx5shz++q4vbCCuCR1aSHOVPzWqZo53EyNeur5gEwdjJvxlJwK8Ts DMlA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=z3nhKV1wBqQcfXnDoMHMl2GEjOrb6h1HQ06C9nkbnUE=; b=HIDlC942bnHmHjeCNNtnEQ5iV4vlD77eOC6+lWi4gPRS+j7scbFPvh9nRP7Btjz1F7 LUoxEg4oTXvwjjn8JlaHFU+rhopNg1qkRKsiiJ+EAIGdVo70y0jl7GCyDug2VlZ13utL ce0I4HByzAYDmlLMSo+3xAWqT07Yyyn8SY3QgMsmYStO/eDopSsUyPAULPtJZQM43f4e X7p9J9ab3uWCu6A/8SJo0M6xkgJcBE9ASby201u+FON2PIVSuXHsYEI4VkQANO1EgJoY 3xJTZEzk2FqlWLkk1xxH20Ukj6GNheV7YyeGSKUdE/Mg5Jfw4OwUb9InSnL4a2ljkghl 5zRQ== X-Gm-Message-State: APzg51CnL2Be0Bq9+/veWZk/kVAsI2mV3r7o4RE/VCQdLngEWmk/iPJb YCpf2Od/I8pVvQr/wQcYp/f0jJNjqzc+1w== X-Google-Smtp-Source: ANB0VdaY9S88UwQpnEWTqMImvMCzxeuLWHG80DILblfgoxpBEJLYLOHD2bYqP+JaFe3Xn/FdlyB81Q== X-Received: by 2002:a37:d708:: with SMTP id m8-v6mr18898192qki.132.1536688729059; Tue, 11 Sep 2018 10:58:49 -0700 (PDT) Received: from localhost ([107.15.81.208]) by smtp.gmail.com with ESMTPSA id a26-v6sm12987941qtc.74.2018.09.11.10.58.47 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 11 Sep 2018 10:58:48 -0700 (PDT) From: Josef Bacik To: kernel-team@fb.com, linux-btrfs@vger.kernel.org Cc: Josef Bacik Subject: [PATCH 21/36] btrfs: reset max_extent_size on clear in a bitmap Date: Tue, 11 Sep 2018 13:57:52 -0400 Message-Id: <20180911175807.26181-22-josef@toxicpanda.com> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180911175807.26181-1-josef@toxicpanda.com> References: <20180911175807.26181-1-josef@toxicpanda.com> Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Josef Bacik 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. Reviewed-by: Liu Bo Signed-off-by: Josef Bacik --- fs/btrfs/free-space-cache.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 2e96ee7da3ec..d2a863a2ee24 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -1687,6 +1687,8 @@ static inline void __bitmap_clear_bits(struct btrfs_free_space_ctl *ctl, 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,