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block/dirty-bitmaps: prohibit removing readonly bitmaps

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Remove is an inherently RW operation, so this will fail anyway, but
we can fail it very quickly instead of trying and failing, so do so.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190301191545.8728-6-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
This commit is contained in:
John Snow 2019-03-12 12:05:49 -04:00
parent a54a0c113b
commit c3edf13cd1
1 changed files with 2 additions and 1 deletions
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3
blockdev.c
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@ -2884,7 +2884,8 @@ void qmp_block_dirty_bitmap_remove(const char *node, const char *name,
return;
}
if (bdrv_dirty_bitmap_check(bitmap, BDRV_BITMAP_BUSY, errp)) {
if (bdrv_dirty_bitmap_check(bitmap, BDRV_BITMAP_BUSY | BDRV_BITMAP_RO,
errp)) {
return;
}