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parallels: dirty BAT properly for continuous allocations

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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>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2015-11-17 20:02:58 +03:00 committed by Stefan Hajnoczi
parent 5522a841ca
commit c9f6856ded
1 changed files with 1 additions and 1 deletions
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2
block/parallels.c
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@ -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;