Commit c9f6856d authored by Vladimir Sementsov-Ogievskiy's avatar Vladimir Sementsov-Ogievskiy Committed by Stefan Hajnoczi
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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: default avatarVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: default avatarDenis 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: default avatarStefan Hajnoczi <stefanha@redhat.com>
parent 5522a841

block/parallels.c

+1 −1
Original line number Diff line number Diff line
@@ -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;