From: Yauhen Kharuzhy Date: Thu, 26 Mar 2009 22:41:09 +0000 (+0200) Subject: [MTD] mtdpart: Make ecc_stats more realistic. X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d8877f191e35718ba11a4d46950131e74c40566c;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git [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 Signed-off-by: David Woodhouse --- 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; }