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[Qemu-block] [PATCH] block: implement the bdrv_reopen_prepare helper for
From: |
Daniel P. Berrange |
Subject: |
[Qemu-block] [PATCH] block: implement the bdrv_reopen_prepare helper for LUKS driver |
Date: |
Thu, 18 Jan 2018 10:31:43 +0000 |
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 <address@hidden>
---
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
- [Qemu-block] [PATCH] block: implement the bdrv_reopen_prepare helper for LUKS driver,
Daniel P. Berrange <=