From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:52316 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751425AbcKIK0p (ORCPT ); Wed, 9 Nov 2016 05:26:45 -0500 Subject: Patch "UBI: fastmap: scrub PEB when bitflips are detected in a free PEB EC header" has been added to the 4.4-stable tree To: boris.brezillon@free-electrons.com, gregkh@linuxfoundation.org, richard@nod.at Cc: , From: Date: Wed, 09 Nov 2016 11:26:44 +0100 Message-ID: <147868720412588@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled UBI: fastmap: scrub PEB when bitflips are detected in a free PEB EC header to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: ubi-fastmap-scrub-peb-when-bitflips-are-detected-in-a-free-peb-ec-header.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From ecbfa8eabae9cd73522d1d3d15869703c263d859 Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Fri, 16 Sep 2016 16:59:12 +0200 Subject: UBI: fastmap: scrub PEB when bitflips are detected in a free PEB EC header From: Boris Brezillon commit ecbfa8eabae9cd73522d1d3d15869703c263d859 upstream. scan_pool() does not mark the PEB for scrubing when bitflips are detected in the EC header of a free PEB (VID header region left to 0xff). Make sure we scrub the PEB in this case. Signed-off-by: Boris Brezillon Fixes: dbb7d2a88d2a ("UBI: Add fastmap core") Signed-off-by: Richard Weinberger Signed-off-by: Greg Kroah-Hartman --- drivers/mtd/ubi/fastmap.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) --- a/drivers/mtd/ubi/fastmap.c +++ b/drivers/mtd/ubi/fastmap.c @@ -513,10 +513,11 @@ static int scan_pool(struct ubi_device * unsigned long long ec = be64_to_cpu(ech->ec); unmap_peb(ai, pnum); dbg_bld("Adding PEB to free: %i", pnum); + if (err == UBI_IO_FF_BITFLIPS) - add_aeb(ai, free, pnum, ec, 1); - else - add_aeb(ai, free, pnum, ec, 0); + scrub = 1; + + add_aeb(ai, free, pnum, ec, scrub); continue; } else if (err == 0 || err == UBI_IO_BITFLIPS) { dbg_bld("Found non empty PEB:%i in pool", pnum); Patches currently in stable-queue which might be from boris.brezillon@free-electrons.com are queue-4.4/ubi-fastmap-scrub-peb-when-bitflips-are-detected-in-a-free-peb-ec-header.patch queue-4.4/ubi-fastmap-fix-add_vol-return-value-test-in-ubi_attach_fastmap.patch