From patchwork Mon Oct 19 09:19:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roman Anufriev X-Patchwork-Id: 1384124 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-ext4-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=yandex-team.ru Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=yandex-team.ru header.i=@yandex-team.ru header.a=rsa-sha256 header.s=default header.b=kFPjXzQ3; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4CFB6R6Jr9z9sSG for ; Mon, 19 Oct 2020 20:19:43 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730322AbgJSJTn (ORCPT ); Mon, 19 Oct 2020 05:19:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49710 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730319AbgJSJTn (ORCPT ); Mon, 19 Oct 2020 05:19:43 -0400 Received: from forwardcorp1p.mail.yandex.net (forwardcorp1p.mail.yandex.net [IPv6:2a02:6b8:0:1472:2741:0:8b6:217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E5416C0613CE for ; Mon, 19 Oct 2020 02:19:42 -0700 (PDT) Received: from sas1-5717c3cea310.qloud-c.yandex.net (sas1-5717c3cea310.qloud-c.yandex.net [IPv6:2a02:6b8:c14:3616:0:640:5717:c3ce]) by forwardcorp1p.mail.yandex.net (Yandex) with ESMTP id 007392E1506; Mon, 19 Oct 2020 12:19:39 +0300 (MSK) Received: from sas1-b105e6591dac.qloud-c.yandex.net (sas1-b105e6591dac.qloud-c.yandex.net [2a02:6b8:c08:4790:0:640:b105:e659]) by sas1-5717c3cea310.qloud-c.yandex.net (mxbackcorp/Yandex) with ESMTP id KHEb6MJY1i-JcwSrOcV; Mon, 19 Oct 2020 12:19:38 +0300 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex-team.ru; s=default; t=1603099178; bh=i8oomb8oUwmf+KwyyjzdOFrinF919+lxGWX/QmQP7AY=; h=Message-Id:Date:Subject:To:From:Cc; b=kFPjXzQ3PTWYwaUWZI2XvgbIAfJ1bsXadzHgL3Rmfft2u5Ehe1FGwJSBwdSfa8Vht mP+QPX9LTX/eRWjKx2L9yGzFa8ZhEG9snnBRLIVxKDCzxJBm0CfhFzpp7xDVRxygvn xOShYuLMlpqsav8CcPEyDJ5LrAcwUGAqOM/ZcYcA= Authentication-Results: sas1-5717c3cea310.qloud-c.yandex.net; dkim=pass header.i=@yandex-team.ru Received: from kernel1.search.yandex.net (kernel1.search.yandex.net [2a02:6b8:c02:550:0:604:9094:6282]) by sas1-b105e6591dac.qloud-c.yandex.net (smtpcorp/Yandex) with ESMTPSA id ERkL33auN0-JcnCl4Pd; Mon, 19 Oct 2020 12:19:38 +0300 (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (Client certificate not present) From: Roman Anufriev To: linux-ext4@vger.kernel.org Cc: tytso@mit.edu, jack@suse.cz, dmtrmonakhov@yandex-team.ru, dotdot@yandex-team.ru Subject: [PATCH v3 1/2] ext4: add helpers for checking whether quota can be enabled/is journalled Date: Mon, 19 Oct 2020 12:19:21 +0300 Message-Id: <1603099162-25028-1-git-send-email-dotdot@yandex-team.ru> Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org Right now, there are several places, where we check whether fs is capable of enabling quota or if quota is journalled with quite long and non-self-descriptive condition statements. This patch wraps these statements into helpers for better readability and easier usage. Signed-off-by: Roman Anufriev --- Changes in v3: - nothing Changes in v2: - Fix misleading helper name 'ext4_any_quota_enabled()' -> 'ext4_quota_capable()'. fs/ext4/ext4.h | 15 +++++++++++++++ fs/ext4/ext4_jbd2.h | 9 +++------ fs/ext4/super.c | 5 +---- 3 files changed, 19 insertions(+), 10 deletions(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 250e905..897df24 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -3251,6 +3251,21 @@ static inline void ext4_unlock_group(struct super_block *sb, spin_unlock(ext4_group_lock_ptr(sb, group)); } +#ifdef CONFIG_QUOTA +static inline bool ext4_quota_capable(struct super_block *sb) +{ + return (test_opt(sb, QUOTA) || ext4_has_feature_quota(sb)); +} + +static inline bool ext4_is_quota_journalled(struct super_block *sb) +{ + struct ext4_sb_info *sbi = EXT4_SB(sb); + + return (ext4_has_feature_quota(sb) || + sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]); +} +#endif + /* * Block validity checking */ diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h index 00dc668..a124c68 100644 --- a/fs/ext4/ext4_jbd2.h +++ b/fs/ext4/ext4_jbd2.h @@ -86,17 +86,14 @@ #ifdef CONFIG_QUOTA /* Amount of blocks needed for quota update - we know that the structure was * allocated so we need to update only data block */ -#define EXT4_QUOTA_TRANS_BLOCKS(sb) ((test_opt(sb, QUOTA) ||\ - ext4_has_feature_quota(sb)) ? 1 : 0) +#define EXT4_QUOTA_TRANS_BLOCKS(sb) ((ext4_quota_capable(sb)) ? 1 : 0) /* Amount of blocks needed for quota insert/delete - we do some block writes * but inode, sb and group updates are done only once */ -#define EXT4_QUOTA_INIT_BLOCKS(sb) ((test_opt(sb, QUOTA) ||\ - ext4_has_feature_quota(sb)) ?\ +#define EXT4_QUOTA_INIT_BLOCKS(sb) ((ext4_quota_capable(sb)) ?\ (DQUOT_INIT_ALLOC*(EXT4_SINGLEDATA_TRANS_BLOCKS(sb)-3)\ +3+DQUOT_INIT_REWRITE) : 0) -#define EXT4_QUOTA_DEL_BLOCKS(sb) ((test_opt(sb, QUOTA) ||\ - ext4_has_feature_quota(sb)) ?\ +#define EXT4_QUOTA_DEL_BLOCKS(sb) ((ext4_quota_capable(sb)) ?\ (DQUOT_DEL_ALLOC*(EXT4_SINGLEDATA_TRANS_BLOCKS(sb)-3)\ +3+DQUOT_DEL_REWRITE) : 0) #else diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 9d01318..a988cf3 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -6158,11 +6158,8 @@ static int ext4_release_dquot(struct dquot *dquot) static int ext4_mark_dquot_dirty(struct dquot *dquot) { struct super_block *sb = dquot->dq_sb; - struct ext4_sb_info *sbi = EXT4_SB(sb); - /* Are we journaling quotas? */ - if (ext4_has_feature_quota(sb) || - sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) { + if (ext4_is_quota_journalled(sb)) { dquot_mark_dquot_dirty(dquot); return ext4_write_dquot(dquot); } else {