From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Fri, 21 Mar 2014 11:57:44 +0000 (-0300)
Subject: mtd: Account for BBT blocks when a partition is being allocated
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=fdf43a420f5c2b737b0e65c4c3330867903b098a;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

mtd: Account for BBT blocks when a partition is being allocated

With the introduction of mtd_block_isreserved(), it's now possible
to fix the bad and reserved block distribution exposed by ecc_stats,
instead of accounting all the bad or reserved blocks as 'bad'.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Pekon Gupta <pekon@ti.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---

diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 921e8c647884..a3e3a7d074d5 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -535,7 +535,9 @@ static struct mtd_part *allocate_partition(struct mtd_info *master,
 		uint64_t offs = 0;
 
 		while (offs < slave->mtd.size) {
-			if (mtd_block_isbad(master, offs + slave->offset))
+			if (mtd_block_isreserved(master, offs + slave->offset))
+				slave->mtd.ecc_stats.bbtblocks++;
+			else if (mtd_block_isbad(master, offs + slave->offset))
 				slave->mtd.ecc_stats.badblocks++;
 			offs += slave->mtd.erasesize;
 		}