From: Boris Brezillon <boris.brezillon@free-electrons.com>
To: Artem Bityutskiy <dedekind1@gmail.com>,
Richard Weinberger <richard@nod.at>
Cc: David Woodhouse <dwmw2@infradead.org>,
Brian Norris <computersforpeace@gmail.com>,
linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org,
Boris Brezillon <boris.brezillon@free-electrons.com>
Subject: [PATCH v2 04/17] UBI: fastmap: scrub PEB when bitflips are detected in a free PEB EC header
Date: Mon, 5 Sep 2016 17:04:55 +0200 [thread overview]
Message-ID: <1473087908-27862-5-git-send-email-boris.brezillon@free-electrons.com> (raw)
In-Reply-To: <1473087908-27862-1-git-send-email-boris.brezillon@free-electrons.com>
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 <boris.brezillon@free-electrons.com>
Fixes: dbb7d2a88d2a ("UBI: Add fastmap core")
---
drivers/mtd/ubi/fastmap.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c
index ebb65ac6980f..a6ed78d14055 100644
--- a/drivers/mtd/ubi/fastmap.c
+++ b/drivers/mtd/ubi/fastmap.c
@@ -498,10 +498,11 @@ static int scan_pool(struct ubi_device *ubi, struct ubi_attach_info *ai,
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);
--
2.7.4
next prev parent reply other threads:[~2016-09-05 15:05 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-05 15:04 [PATCH v2 00/21] UBI: various rework/cleanup/fixes Boris Brezillon
2016-09-05 15:04 ` [PATCH v2 01/17] UBI: fastmap: use ubi_find_volume() instead of open coding it Boris Brezillon
2016-09-05 15:04 ` [PATCH v2 02/17] UBI: fix add_fastmap() to use the vid_hdr passed in argument Boris Brezillon
2016-09-05 15:04 ` [PATCH v2 03/17] UBI: fastmap: avoid multiple be32_to_cpu() when unneccesary Boris Brezillon
2016-09-05 15:04 ` Boris Brezillon [this message]
2016-09-05 15:04 ` [PATCH v2 05/17] UBI: factorize code used to manipulate volumes at attach time Boris Brezillon
2016-09-05 15:04 ` [PATCH v2 06/17] UBI: factorize destroy_av() and ubi_remove_av() code Boris Brezillon
2016-09-05 15:04 ` [PATCH v2 07/17] UBI: fastmap: use ubi_rb_for_each_entry() in unmap_peb() Boris Brezillon
2016-09-05 15:04 ` [PATCH v2 08/17] UBI: fastmap: use ubi_io_{read,write}_data() instead of ubi_io_{read,write}() Boris Brezillon
2016-09-05 15:05 ` [PATCH v2 09/17] UBI: provide helpers to allocate and free aeb elements Boris Brezillon
2016-09-05 15:05 ` [PATCH v2 10/17] UBI: move the global ech and vidh variables into struct ubi_attach_info Boris Brezillon
2016-09-05 15:05 ` [PATCH v2 11/17] UBI: simplify recover_peb() code Boris Brezillon
2016-09-16 10:14 ` Richard Weinberger
2016-09-16 11:23 ` Boris Brezillon
2016-09-16 13:23 ` Richard Weinberger
2016-09-16 13:27 ` Boris Brezillon
2016-09-05 15:05 ` [PATCH v2 12/17] UBI: simplify LEB write and atomic LEB change code Boris Brezillon
2016-09-05 15:05 ` [PATCH v2 13/17] UBI: add an helper to check lnum validity Boris Brezillon
2016-09-05 15:05 ` [PATCH v2 14/17] UBI: provide an helper to check whether a LEB is mapped or not Boris Brezillon
2016-09-05 15:05 ` [PATCH v2 15/17] UBI: provide an helper to query LEB information Boris Brezillon
2016-09-05 15:05 ` [PATCH v2 16/17] UBI: hide EBA internals Boris Brezillon
2016-09-16 10:43 ` Richard Weinberger
2016-09-16 11:38 ` Boris Brezillon
2016-09-16 13:24 ` Richard Weinberger
2016-09-05 15:05 ` [PATCH v2 17/17] UBI: introduce the VID buffer concept Boris Brezillon
2016-09-16 11:38 ` Richard Weinberger
2016-09-16 11:41 ` Boris Brezillon
2016-09-16 13:26 ` [PATCH v2 00/21] UBI: various rework/cleanup/fixes Richard Weinberger
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