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From: | Alberto Garcia |
Subject: | Re: [PATCH v6 4/5] block/io: fix bdrv_is_allocated_above |
Date: | Thu, 24 Sep 2020 18:21:19 +0200 |
User-agent: | Notmuch/0.18.2 (http://notmuchmail.org) Emacs/24.4.1 (i586-pc-linux-gnu) |
On Wed 16 Sep 2020 02:20:07 PM CEST, Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> wrote: > bdrv_is_allocated_above wrongly handles short backing files: it reports > after-EOF space as UNALLOCATED which is wrong, as on read the data is > generated on the level of short backing file (if all overlays has > unallocated area at that place). > > Reusing bdrv_common_block_status_above fixes the issue and unifies code > path. > > Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> > Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Berto
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