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block/dirty-bitmap: add bdrv_has_named_bitmaps helper 

To be used for bitmap migration in further commit.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200521220648.3255-3-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
master
Vladimir Sementsov-Ogievskiy 2020-05-22 01:06:44 +03:00 committed by Eric Blake
parent 38908bbc65
commit 7ae89a0de9
2 changed files with 14 additions and 0 deletions
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13
block/dirty-bitmap.c
View File

@ -818,6 +818,19 @@ bool bdrv_has_readonly_bitmaps(BlockDriverState *bs)
return false;
}
bool bdrv_has_named_bitmaps(BlockDriverState *bs)
{
BdrvDirtyBitmap *bm;
QLIST_FOREACH(bm, &bs->dirty_bitmaps, list) {
if (bdrv_dirty_bitmap_name(bm)) {
return true;
}
}
return false;
}
/* Called with BQL taken. */
void bdrv_dirty_bitmap_set_persistence(BdrvDirtyBitmap *bitmap, bool persistent)
{

1
include/block/dirty-bitmap.h
View File

@ -95,6 +95,7 @@ int64_t bdrv_get_dirty_count(BdrvDirtyBitmap *bitmap);
void bdrv_dirty_bitmap_truncate(BlockDriverState *bs, int64_t bytes);
bool bdrv_dirty_bitmap_readonly(const BdrvDirtyBitmap *bitmap);
bool bdrv_has_readonly_bitmaps(BlockDriverState *bs);
bool bdrv_has_named_bitmaps(BlockDriverState *bs);
bool bdrv_dirty_bitmap_get_autoload(const BdrvDirtyBitmap *bitmap);
bool bdrv_dirty_bitmap_get_persistence(BdrvDirtyBitmap *bitmap);
bool bdrv_dirty_bitmap_inconsistent(const BdrvDirtyBitmap *bitmap);