From: NeilBrown <neilb@cse.unsw.edu.au>
Date: Wed, 22 Jun 2005 00:17:24 +0000 (-0700)
Subject: [PATCH] md: initialise sync_blocks in raid1 resync
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=289e99e8ed8f36e386bf7de49947311c17ae1482;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[PATCH] md: initialise sync_blocks in raid1 resync

Otherwise it could have a random value and might BUG.  This fixes a BUG
during resync problem in raid1 introduced by the bitmap-based-intent-loggin
patches.

Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 9d9acc3e51a7..c3b4772cfaea 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1230,6 +1230,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
 	}
 
 	nr_sectors = 0;
+	sync_blocks = 0;
 	do {
 		struct page *page;
 		int len = PAGE_SIZE;