If the bdrv_reopen_prepare helper isn't provided, the qemu-img commit command fails to re-open the base layer after committing changes into it. Provide a no-op implementation for the LUKS driver, since there is not any custom work that needs doing to re-open it.
Signed-off-by: Daniel P. Berrange <berra...@redhat.com> --- block/crypto.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/block/crypto.c b/block/crypto.c index 60ddf8623e..bb9a8f5376 100644 --- a/block/crypto.c +++ b/block/crypto.c @@ -382,6 +382,12 @@ static void block_crypto_close(BlockDriverState *bs) qcrypto_block_free(crypto->block); } +static int block_crypto_reopen_prepare(BDRVReopenState *state, + BlockReopenQueue *queue, Error **errp) +{ + /* nothing needs checking */ + return 0; +} /* * 1 MB bounce buffer gives good performance / memory tradeoff @@ -620,6 +626,7 @@ BlockDriver bdrv_crypto_luks = { .bdrv_truncate = block_crypto_truncate, .create_opts = &block_crypto_create_opts_luks, + .bdrv_reopen_prepare = block_crypto_reopen_prepare, .bdrv_refresh_limits = block_crypto_refresh_limits, .bdrv_co_preadv = block_crypto_co_preadv, .bdrv_co_pwritev = block_crypto_co_pwritev, -- 2.14.3