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block: Add bdrv_get_specific_info

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Add a function for retrieving an ImageInfoSpecific object from a block
driver.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2013-10-09 10:46:16 +02:00 • committed by Kevin Wolf
parent f2bb8a8a47
commit eae041fe6f
4 changed files with 14 additions and 0 deletions
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9
block.c
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@ -3322,6 +3322,15 @@ int bdrv_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
return drv->bdrv_get_info(bs, bdi);
}
ImageInfoSpecific *bdrv_get_specific_info(BlockDriverState *bs)
{
BlockDriver *drv = bs->drv;
if (drv && drv->bdrv_get_specific_info) {
return drv->bdrv_get_specific_info(bs);
}
return NULL;
}
int bdrv_save_vmstate(BlockDriverState *bs, const uint8_t *buf,
int64_t pos, int size)
{