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Groups > linux.kernel > #1468348
| From | Boris Brezillon <boris.brezillon@free-electrons.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 3/7] UBI: fastmap: scrub PEB when bitflips are detected in a free PEB EC header |
| Date | 2016-08-23 09:40 +0200 |
| Message-ID | <s9ets-Qx-21@gated-at.bofh.it> (permalink) |
| References | <s9etr-Qx-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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
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[PATCH 0/7] UBI: various cleanup/fixes Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-08-23 09:40 +0200 [PATCH 1/7] UBI: fastmap: use ubi_find_volume() instead of open coding it Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-08-23 09:40 +0200 [PATCH 3/7] UBI: fastmap: scrub PEB when bitflips are detected in a free PEB EC header Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-08-23 09:40 +0200 [PATCH 2/7] UBI: fastmap: avoid multiple be32_to_cpu() when unneccesary Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-08-23 09:40 +0200 [PATCH 4/7] UBI: factorize code used to manipulate volumes at attach time Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-08-23 09:40 +0200 [PATCH 5/7] UBI: factorize destroy_av() and ubi_remove_av() code Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-08-23 09:40 +0200
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