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qcow2: do encryption in threads

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Do encryption/decryption in threads, like it is already done for
compression. This improves asynchronous encrypted io.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190506142741.41731-9-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2019-05-06 17:27:41 +03:00 • committed by Max Reitz
parent 5447c3a03f
commit 8ac0f15f33
4 changed files with 81 additions and 21 deletions
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7
block/qcow2-cluster.c
View file

@ -471,13 +471,12 @@ static bool coroutine_fn do_perform_cow_encrypt(BlockDriverState *bs,
{
if (bytes && bs->encrypted) {
BDRVQcow2State *s = bs->opaque;
int64_t offset = (s->crypt_physical_offset ?
(cluster_offset + offset_in_cluster) :
(src_cluster_offset + offset_in_cluster));
assert((offset_in_cluster & ~BDRV_SECTOR_MASK) == 0);
assert((bytes & ~BDRV_SECTOR_MASK) == 0);
assert(s->crypto);
if (qcrypto_block_encrypt(s->crypto, offset, buffer, bytes, NULL) < 0) {
if (qcow2_co_encrypt(bs, cluster_offset,
src_cluster_offset + offset_in_cluster,
buffer, bytes) < 0) {
return false;
}
}