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[PULL 19/64] block: bdrv_cow_child() for bdrv_has_zero_init()
From: |
Kevin Wolf |
Subject: |
[PULL 19/64] block: bdrv_cow_child() for bdrv_has_zero_init() |
Date: |
Mon, 7 Sep 2020 13:08:51 +0200 |
From: Max Reitz <mreitz@redhat.com>
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>
---
block.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block.c b/block.c
index b162142609..656baa521e 100644
--- a/block.c
+++ b/block.c
@@ -5415,7 +5415,7 @@ int bdrv_has_zero_init(BlockDriverState *bs)
/* If BS is a copy on write image, it is initialized to
the contents of the base image, which may not be zeroes. */
- if (bs->backing) {
+ if (bdrv_cow_child(bs)) {
return 0;
}
if (bs->drv->bdrv_has_zero_init) {
--
2.25.4
- [PULL 09/64] block/nvme: Use union of NvmeIdCtrl / NvmeIdNs structures, (continued)
- [PULL 09/64] block/nvme: Use union of NvmeIdCtrl / NvmeIdNs structures, Kevin Wolf, 2020/09/07
- [PULL 10/64] block/nvme: Replace qemu_try_blockalign0 by qemu_try_blockalign/memset, Kevin Wolf, 2020/09/07
- [PULL 11/64] block/nvme: Replace qemu_try_blockalign(bs) by qemu_try_memalign(pg_sz), Kevin Wolf, 2020/09/07
- [PULL 12/64] block/nvme: Simplify nvme_init_queue() arguments, Kevin Wolf, 2020/09/07
- [PULL 13/64] block/nvme: Replace BDRV_POLL_WHILE by AIO_WAIT_WHILE, Kevin Wolf, 2020/09/07
- [PULL 08/64] block/nvme: Rename local variable, Kevin Wolf, 2020/09/07
- [PULL 14/64] block/nvme: Simplify nvme_create_queue_pair() arguments, Kevin Wolf, 2020/09/07
- [PULL 15/64] block/nvme: Extract nvme_poll_queue(), Kevin Wolf, 2020/09/07
- [PULL 17/64] block: Add child access functions, Kevin Wolf, 2020/09/07
- [PULL 18/64] block: Add chain helper functions, Kevin Wolf, 2020/09/07
- [PULL 19/64] block: bdrv_cow_child() for bdrv_has_zero_init(),
Kevin Wolf <=
- [PULL 16/64] block/nvme: Use an array of EventNotifier, Kevin Wolf, 2020/09/07
- [PULL 20/64] block: bdrv_set_backing_hd() is about bs->backing, Kevin Wolf, 2020/09/07
- [PULL 21/64] block: Include filters when freezing backing chain, Kevin Wolf, 2020/09/07
- [PULL 23/64] block: Add bdrv_supports_compressed_writes(), Kevin Wolf, 2020/09/07
- [PULL 24/64] throttle: Support compressed writes, Kevin Wolf, 2020/09/07
- [PULL 26/64] block: Use bdrv_filter_(bs|child) where obvious, Kevin Wolf, 2020/09/07
- [PULL 22/64] block: Drop bdrv_is_encrypted(), Kevin Wolf, 2020/09/07
- [PULL 27/64] block: Use CAFs in block status functions, Kevin Wolf, 2020/09/07
- [PULL 25/64] copy-on-read: Support compressed writes, Kevin Wolf, 2020/09/07
- [PULL 28/64] stream: Deal with filters, Kevin Wolf, 2020/09/07