haraldwolff/qemu-patch-raspberry4
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qcow2: Use BB for resizing in qcow2_amend_options()

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In order to able to convert bdrv_truncate() to take a BdrvChild and
later to correctly check the resize permission here, we need to use a
BlockBackend for resizing the image.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Kevin Wolf 2017-02-17 10:58:25 +01:00
parent 7dad9ee646
commit 70b27f3643
1 changed files with 5 additions and 1 deletions
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6
block/qcow2.c
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@ -3250,7 +3250,11 @@ static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts,
}
if (new_size) {
ret = bdrv_truncate(bs, new_size);
BlockBackend *blk = blk_new();
blk_insert_bs(blk, bs);
ret = blk_truncate(blk, new_size);
blk_unref(blk);
if (ret < 0) {
return ret;
}