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authorYauhen Kharuzhy <jekhor@gmail.com>2009-03-27 00:41:09 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2009-04-06 07:22:28 -0700
commitd8877f191e35718ba11a4d46950131e74c40566c (patch)
tree1c52c60c4ef35b11a4d74cea99159f562204bcb4 /drivers/mtd
parent7995c7e94ff4db2ddb865ab42cc5a2e6abbbd71a (diff)
downloadblackbird-op-linux-d8877f191e35718ba11a4d46950131e74c40566c.tar.gz
blackbird-op-linux-d8877f191e35718ba11a4d46950131e74c40566c.zip
[MTD] mtdpart: Make ecc_stats more realistic.
In the existing implementation, ecc_stats fields are incremented only by one, regardless of master mtd errors number. For example, if there are N errors were corrected by ECC, partition ecc_stats.corrected will be incremented by one. This commit changes simple increment to sum of old value and parent mtd error count. Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/mtdpart.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 02ce38fb1fc3..29675edb44b4 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -48,8 +48,11 @@ static int part_read(struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, u_char *buf)
{
struct mtd_part *part = PART(mtd);
+ struct mtd_ecc_stats stats;
int res;
+ stats = part->master->ecc_stats;
+
if (from >= mtd->size)
len = 0;
else if (from + len > mtd->size)
@@ -58,9 +61,9 @@ static int part_read(struct mtd_info *mtd, loff_t from, size_t len,
len, retlen, buf);
if (unlikely(res)) {
if (res == -EUCLEAN)
- mtd->ecc_stats.corrected++;
+ mtd->ecc_stats.corrected += part->master->ecc_stats.corrected - stats.corrected;
if (res == -EBADMSG)
- mtd->ecc_stats.failed++;
+ mtd->ecc_stats.failed += part->master->ecc_stats.failed - stats.failed;
}
return res;
}
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