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| author | Daniel P. Berrange <berrange@redhat.com> | 2017-09-27 13:53:40 +0100 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2017-10-06 16:30:47 +0200 |
| commit | d67a6b09b4ac27a4fac07544ded79b40d2717a0d (patch) | |
| tree | 580942fe4a5e91cec4b187be26d6412c377b72a8 /block | |
| parent | 4609742a495d98ac358098e10d91890185dcdc60 (diff) | |
| download | qemu-d67a6b09b4ac27a4fac07544ded79b40d2717a0d.zip qemu-d67a6b09b4ac27a4fac07544ded79b40d2717a0d.tar.gz qemu-d67a6b09b4ac27a4fac07544ded79b40d2717a0d.tar.bz2 | |
block: support passthrough of BDRV_REQ_FUA in crypto driver
The BDRV_REQ_FUA flag can trivially be allowed in the crypt driver
as a passthrough to the underlying block driver.
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 20170927125340.12360-7-berrange@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/crypto.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/block/crypto.c b/block/crypto.c index edf53d4..60ddf86 100644 --- a/block/crypto.c +++ b/block/crypto.c @@ -279,6 +279,9 @@ static int block_crypto_open_generic(QCryptoBlockFormat format, return -EINVAL; } + bs->supported_write_flags = BDRV_REQ_FUA & + bs->file->bs->supported_write_flags; + opts = qemu_opts_create(opts_spec, NULL, 0, &error_abort); qemu_opts_absorb_qdict(opts, options, &local_err); if (local_err) { @@ -462,7 +465,7 @@ block_crypto_co_pwritev(BlockDriverState *bs, uint64_t offset, uint64_t bytes, uint64_t sector_size = qcrypto_block_get_sector_size(crypto->block); uint64_t payload_offset = qcrypto_block_get_payload_offset(crypto->block); - assert(!flags); + assert(!(flags & ~BDRV_REQ_FUA)); assert(payload_offset < INT64_MAX); assert(QEMU_IS_ALIGNED(offset, sector_size)); assert(QEMU_IS_ALIGNED(bytes, sector_size)); @@ -495,7 +498,7 @@ block_crypto_co_pwritev(BlockDriverState *bs, uint64_t offset, uint64_t bytes, qemu_iovec_add(&hd_qiov, cipher_data, cur_bytes); ret = bdrv_co_pwritev(bs->file, payload_offset + offset + bytes_done, - cur_bytes, &hd_qiov, 0); + cur_bytes, &hd_qiov, flags); if (ret < 0) { goto cleanup; } |