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 X-Spam-Level: X-Spam-Status: No, score=-2.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F19ABC433F4 for ; Tue, 18 Sep 2018 13:05:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 96F7D2086B for ; Tue, 18 Sep 2018 13:05:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="a/u642o0" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 96F7D2086B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729616AbeIRSiE (ORCPT ); Tue, 18 Sep 2018 14:38:04 -0400 Received: from mail-pf1-f196.google.com ([209.85.210.196]:40907 "EHLO mail-pf1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728631AbeIRSiD (ORCPT ); Tue, 18 Sep 2018 14:38:03 -0400 Received: by mail-pf1-f196.google.com with SMTP id s13-v6so1001331pfi.7 for ; Tue, 18 Sep 2018 06:05:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id; bh=Q1c1Wa2kdYXudbIuhJcShlVaoPYzs6v27rWsjdAfcv0=; b=a/u642o0HU8F3utqUo3LZuyWFgMxpLHFfe10zd5FW2rB8sIBgId7IoCj+nV7aYOBtg mBQJYO//PJ+hChKVjdGauR1Tp/2w7c+AT86CMiUhIPlfkJ3Fm9hcM1nYm6W/ld680aVu hoq6HwvBEFq4lxneu+GhLb+MeU3kaoqicOy/hhrKCiFnUje9pOdVuumEkFY/dWod4dCU UHRpwLQaLhKWZIJaukYDGp2YzZLzTM6mauIDSuWsU6Dj3+mQJ6cAn73y4zZsUSJQpcki GiS85jr/sntD/NTQVhWkaT3rI4XvI/aF84+tWHa4cLzZecilGnulkJZUM99A0E06dUhp gY8A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id; bh=Q1c1Wa2kdYXudbIuhJcShlVaoPYzs6v27rWsjdAfcv0=; b=n4Xfwur2uo0kV8CQQ218CeNPkU8BgG086Xq0hMzwtJKRMmpKzTIKdsIqrDFgTv8oo1 afsseGtmM6LnIV8sItDCB193FqyKR8XUHHfHYvuJmquSYC+M7YiqzDcF2I0M1sQhXRnH nNaN/W8qtII9D3IKtq4QY/zD8Pxoo9n6G51MJeZoUGs1OLUhXEN3zYFqgugq5RTwZv/G LLIf0bF+d2ikIBMWH8oWHWMw0BN1ufAZyiWNgiXm2LQIhbkKqs8waPXvyFC3Nb1Csmw5 hFmFabXsrMdjP5Cej96LZCtWsdmf8lkJYWV93OTWjdjCJEjFElP3LqZwcyzCSByV1SPb 8Asw== X-Gm-Message-State: APzg51CnkjeMkeysbxr2YNwfcLKJDORmLDFyb6SATU4C9Aaz74qy/zN2 0eyfnK7tO/sheCW0u+3Y/6o= X-Google-Smtp-Source: ANB0VdYiArn5sK/H1g26R1j0jNRAV5SHkwZzxvPwBivXktgQvLHfNfMbfkc0QkHN7XRg9XrVc9TrgQ== X-Received: by 2002:a63:9246:: with SMTP id s6-v6mr25861340pgn.141.1537275933197; Tue, 18 Sep 2018 06:05:33 -0700 (PDT) Received: from localhost (27-32-189-129.static.tpgi.com.au. [27.32.189.129]) by smtp.gmail.com with ESMTPSA id w72-v6sm42984114pfa.26.2018.09.18.06.05.31 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 18 Sep 2018 06:05:32 -0700 (PDT) From: Andrew Worsley To: Artem Bityutskiy , Richard Weinberger , David Woodhouse , Brian Norris , Boris Brezillon , Marek Vasut , linux-mtd@lists.infradead.org (open list:UNSORTED BLOCK IMAGES (UBI)), linux-kernel@vger.kernel.org (open list) Subject: Round up the average EC for recovered EB to defer their reuse Date: Tue, 18 Sep 2018 23:05:20 +1000 Message-Id: <20180918130521.22880-1-amworsley@gmail.com> X-Mailer: git-send-email 2.11.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We suggest rounding up the EC(Erase Count) for recovered EB(Erase Blocks) so they are less likely than averaged to be re-used. The EBs which have lost their EC header page and need to be reset are likely to be more worn than average so it is better to use a larger than average number rather than less than average number. Andrew Worsley