From: Tomasz Majchrzak <tomasz.majchrzak@intel.com>
Date: Tue, 23 Aug 2016 08:53:57 +0000 (+0200)
Subject: raid10: record correct address of bad block
X-Git-Tag: v4.8-rc5~27^2~2
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=27028626b4b9022dcac23688e09ea43b36e1183c;p=karo-tx-linux.git

raid10: record correct address of bad block

For failed write request record block address on a device, not block
address in an array.

Signed-off-by: Tomasz Majchrzak <tomasz.majchrzak@intel.com>
Signed-off-by: Shaohua Li <shli@fb.com>
---

diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 1a632a8c8005..4589866257d5 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -2465,20 +2465,21 @@ static int narrow_write_error(struct r10bio *r10_bio, int i)
 
 	while (sect_to_write) {
 		struct bio *wbio;
+		sector_t wsector;
 		if (sectors > sect_to_write)
 			sectors = sect_to_write;
 		/* Write at 'sector' for 'sectors' */
 		wbio = bio_clone_mddev(bio, GFP_NOIO, mddev);
 		bio_trim(wbio, sector - bio->bi_iter.bi_sector, sectors);
-		wbio->bi_iter.bi_sector = (r10_bio->devs[i].addr+
-				   choose_data_offset(r10_bio, rdev) +
-				   (sector - r10_bio->sector));
+		wsector = r10_bio->devs[i].addr + (sector - r10_bio->sector);
+		wbio->bi_iter.bi_sector = wsector +
+				   choose_data_offset(r10_bio, rdev);
 		wbio->bi_bdev = rdev->bdev;
 		bio_set_op_attrs(wbio, REQ_OP_WRITE, 0);
 
 		if (submit_bio_wait(wbio) < 0)
 			/* Failure! */
-			ok = rdev_set_badblocks(rdev, sector,
+			ok = rdev_set_badblocks(rdev, wsector,
 						sectors, 0)
 				&& ok;