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 80A4BC38A2D for ; Mon, 24 Oct 2022 13:05:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235341AbiJXNFi (ORCPT ); Mon, 24 Oct 2022 09:05:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34806 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235166AbiJXNC4 (ORCPT ); Mon, 24 Oct 2022 09:02:56 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0C29C3FA36; Mon, 24 Oct 2022 05:20:05 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 03E7F612CF; Mon, 24 Oct 2022 12:19:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 184C3C433D6; Mon, 24 Oct 2022 12:19:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666613955; bh=MQ4sZieayU4xazipjvklwUwGMXXkKmbKgFkPDFPU528=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=192WOMK6b8TKUJOkSXrRMyROdBUERiTmk69cX1y1yOdIo0JHlvS04vVr2QDq3ixq7 vU/g1zzbzT3X6OEOb5peK/IEWu400ZoXgbyJw/1xGB1RaKhstg75AizGQAXo2NrL3b pAOTi2a8NkkdYqbHMK2YB4MhqAmyVRtgnsYxbDpM= 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 5.10 050/390] f2fs: increase the limit for reserve_root Date: Mon, 24 Oct 2022 13:27:27 +0200 Message-Id: <20221024113024.763778817@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221024113022.510008560@linuxfoundation.org> References: <20221024113022.510008560@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 @@ -267,10 +267,10 @@ 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;