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| author | Max Reitz <mreitz@redhat.com> | 2019-07-24 19:12:35 +0200 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2019-08-19 17:13:26 +0200 |
| commit | 0a28bf2826ca027f0d993388f118b0bdbfca73a9 (patch) | |
| tree | 5a4819543d89ac1af2c7635334a20d9005993902 /block/vdi.c | |
| parent | 38841dcd27a41e2d8916b7cf4f508a5663f453ff (diff) | |
| download | qemu-0a28bf2826ca027f0d993388f118b0bdbfca73a9.zip qemu-0a28bf2826ca027f0d993388f118b0bdbfca73a9.tar.gz qemu-0a28bf2826ca027f0d993388f118b0bdbfca73a9.tar.bz2 | |
vdi: Fix .bdrv_has_zero_init()
Static VDI images cannot guarantee to be zero-initialized. If the image
has been statically allocated, forward the call to the underlying
storage node.
Reported-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Acked-by: Stefano Garzarella <sgarzare@redhat.com>
Tested-by: Stefano Garzarella <sgarzare@redhat.com>
Message-id: 20190724171239.8764-8-mreitz@redhat.com
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'block/vdi.c')
| -rw-r--r-- | block/vdi.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/block/vdi.c b/block/vdi.c index b9845a4..0caa3f2 100644 --- a/block/vdi.c +++ b/block/vdi.c @@ -988,6 +988,17 @@ static void vdi_close(BlockDriverState *bs) error_free(s->migration_blocker); } +static int vdi_has_zero_init(BlockDriverState *bs) +{ + BDRVVdiState *s = bs->opaque; + + if (s->header.image_type == VDI_TYPE_STATIC) { + return bdrv_has_zero_init(bs->file->bs); + } else { + return 1; + } +} + static QemuOptsList vdi_create_opts = { .name = "vdi-create-opts", .head = QTAILQ_HEAD_INITIALIZER(vdi_create_opts.head), @@ -1028,7 +1039,7 @@ static BlockDriver bdrv_vdi = { .bdrv_child_perm = bdrv_format_default_perms, .bdrv_co_create = vdi_co_create, .bdrv_co_create_opts = vdi_co_create_opts, - .bdrv_has_zero_init = bdrv_has_zero_init_1, + .bdrv_has_zero_init = vdi_has_zero_init, .bdrv_co_block_status = vdi_co_block_status, .bdrv_make_empty = vdi_make_empty, |