From c9f6856ded10602147ca1d1806e7afb545430fd9 Mon Sep 17 00:00:00 2001
From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Date: Tue, 17 Nov 2015 20:02:58 +0300
Subject: [PATCH] parallels: dirty BAT properly for continuous allocations
This patch marks part of the BAT dirty properly. There is a possibility that
multy-block allocation could have one block allocated on one BAT page and
next block on the next page. The code without the patch could not save
updated position to the file.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Message-id: 1447779778-26062-1-git-send-email-den@openvz.org
CC: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
block/parallels.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/parallels.c b/block/parallels.c
index 4f79293826..f689fdeaff 100644
--- a/block/parallels.c
+++ b/block/parallels.c
@@ -220,7 +220,7 @@ static int64_t allocate_clusters(BlockDriverState *bs, int64_t sector_num,
s->bat_bitmap[idx + i] = cpu_to_le32(s->data_end / s->off_multiplier);
s->data_end += s->tracks;
bitmap_set(s->bat_dirty_bmap,
- bat_entry_off(idx) / s->bat_dirty_block, 1);
+ bat_entry_off(idx + i) / s->bat_dirty_block, 1);
}
return bat2sect(s, idx) + sector_num % s->tracks;
--
2.30.2