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 0DA43C32771 for ; Mon, 26 Sep 2022 10:17:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235100AbiIZKRe (ORCPT ); Mon, 26 Sep 2022 06:17:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46944 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235113AbiIZKQz (ORCPT ); Mon, 26 Sep 2022 06:16:55 -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 41C5A15A28; Mon, 26 Sep 2022 03:14:52 -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 D9A09B8091E; Mon, 26 Sep 2022 10:14:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 30ED4C433C1; Mon, 26 Sep 2022 10:14:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1664187287; bh=2FBLOR6h3UCh5GKhSE+UT/LyXePGcm5basdWGeNhV3M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=2rBvgogenrDYg7P9vhE4oJ62kwQATJmc4MBjMK8Eu5+qvcYCXOzYVI3+TtU63l44v BMUAT6WSHzhVvZpNwsKuJYvoDHIOu23r0o8vSjASrsGO8AAgpp6sXFFWYY03HzCVQL zUTfRZHBIN/x2fAq8LpZ8aNdF7joFqREBo4ddQkw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Stefan Wahren , Ojaswin Mujoo , stable@kernel.org, Jan Kara , Theodore Tso Subject: [PATCH 4.9 30/30] ext4: make directory inode spreading reflect flexbg size Date: Mon, 26 Sep 2022 12:12:01 +0200 Message-Id: <20220926100737.224531328@linuxfoundation.org> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20220926100736.153157100@linuxfoundation.org> References: <20220926100736.153157100@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: stable@vger.kernel.org From: Jan Kara commit 613c5a85898d1cd44e68f28d65eccf64a8ace9cf upstream. Currently the Orlov inode allocator searches for free inodes for a directory only in flex block groups with at most inodes_per_group/16 more directory inodes than average per flex block group. However with growing size of flex block group this becomes unnecessarily strict. Scale allowed difference from average directory count per flex block group with flex block group size as we do with other metrics. Tested-by: Stefan Wahren Tested-by: Ojaswin Mujoo Cc: stable@kernel.org Link: https://lore.kernel.org/all/0d81a7c2-46b7-6010-62a4-3e6cfc1628d6@i2se.com/ Signed-off-by: Jan Kara Link: https://lore.kernel.org/r/20220908092136.11770-3-jack@suse.cz Signed-off-by: Theodore Ts'o Signed-off-by: Greg Kroah-Hartman --- fs/ext4/ialloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -511,7 +511,7 @@ static int find_group_orlov(struct super goto fallback; } - max_dirs = ndirs / ngroups + inodes_per_group / 16; + max_dirs = ndirs / ngroups + inodes_per_group*flex_size / 16; min_inodes = avefreei - inodes_per_group*flex_size / 4; if (min_inodes < 1) min_inodes = 1;