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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 538A8ECAAA1 for ; Mon, 24 Oct 2022 13:43:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236276AbiJXNnO (ORCPT ); Mon, 24 Oct 2022 09:43:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58172 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236561AbiJXNkk (ORCPT ); Mon, 24 Oct 2022 09:40:40 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0B4EAB276C; Mon, 24 Oct 2022 05:37:37 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 3DD48B811F9; Mon, 24 Oct 2022 12:06:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6DEF8C433C1; Mon, 24 Oct 2022 12:06:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666613171; bh=ZDdK79/PqGnACpozGpN+trTIzki0JQbZTUwIzXIGj5U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=wNb6YY4gLTdPMC29iShPm5p28766CDJ/R2MkR4U5Pb3cxqlf5jf9NziD3/55d1rG6 lj+RKGhewfefSKYQWdUGPuBjmf0XizY2woEXrunA+hrjkvOTXpRYCKGt3RY13xiERR Mvvb9ShpW741ZIU/ZC2DRN7MIhmNh0F5kJtYd17o= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Aran Dalton , Chao Yu , Jaegeuk Kim Subject: [PATCH 5.4 036/255] f2fs: increase the limit for reserve_root Date: Mon, 24 Oct 2022 13:29:06 +0200 Message-Id: <20221024113003.640625457@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221024113002.471093005@linuxfoundation.org> References: <20221024113002.471093005@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jaegeuk Kim commit da35fe96d12d15779f3cb74929b7ed03941cf983 upstream. This patch increases the threshold that limits the reserved root space from 0.2% to 12.5% by using simple shift operation. Typically Android sets 128MB, but if the storage capacity is 32GB, 0.2% which is around 64MB becomes too small. Let's relax it. Cc: stable@vger.kernel.org Reported-by: Aran Dalton Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim Signed-off-by: Greg Kroah-Hartman --- fs/f2fs/super.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -255,10 +255,10 @@ static int f2fs_sb_read_encoding(const s static inline void limit_reserve_root(struct f2fs_sb_info *sbi) { - block_t limit = min((sbi->user_block_count << 1) / 1000, + block_t limit = min((sbi->user_block_count >> 3), sbi->user_block_count - sbi->reserved_blocks); - /* limit is 0.2% */ + /* limit is 12.5% */ if (test_opt(sbi, RESERVE_ROOT) && F2FS_OPTION(sbi).root_reserved_blocks > limit) { F2FS_OPTION(sbi).root_reserved_blocks = limit;