From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34321) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ec7UL-0002J2-F9 for qemu-devel@nongnu.org; Thu, 18 Jan 2018 05:32:06 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ec7UH-0000JO-I4 for qemu-devel@nongnu.org; Thu, 18 Jan 2018 05:32:05 -0500 From: "Daniel P. Berrange" Date: Thu, 18 Jan 2018 10:31:43 +0000 Message-Id: <20180118103143.11780-1-berrange@redhat.com> Subject: [Qemu-devel] [PATCH] block: implement the bdrv_reopen_prepare helper for LUKS driver List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: qemu-block@nongnu.org, Max Reitz , Kevin Wolf , "Daniel P. Berrange" 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 --- 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