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block: bdrv_cow_child() for bdrv_has_zero_init()

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bdrv_has_zero_init() should use bdrv_cow_child() if it wants to check
whether the given BDS has a COW backing file.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2019-06-12 17:10:46 +02:00 committed by Kevin Wolf
parent d38d7eb8a5
commit 34778172f1
1 changed files with 1 additions and 1 deletions
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2
block.c
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@ -5415,7 +5415,7 @@ int bdrv_has_zero_init(BlockDriverState *bs)
/* If BS is a copy on write image, it is initialized to /* If BS is a copy on write image, it is initialized to
the contents of the base image, which may not be zeroes. */ the contents of the base image, which may not be zeroes. */
if (bs->backing) { if (bdrv_cow_child(bs)) {
return 0; return 0;
} }
if (bs->drv->bdrv_has_zero_init) { if (bs->drv->bdrv_has_zero_init) {