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authorVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>2019-04-22 17:58:37 +0300
committerKevin Wolf <kwolf@redhat.com>2019-04-30 15:29:00 +0200
commitf4326aefcf2cd0e89675ca13978597913586d393 (patch)
tree6652a338ecec23882d00af46b126ea6b693cda3f /block
parent08b6261f34e4800f99f3ce9d47bfb95c2f15b656 (diff)
block/stream: use buffer-based io
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block')
-rw-r--r--block/stream.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/block/stream.c b/block/stream.c
index bfaebb861a..1a906fd860 100644
--- a/block/stream.c
+++ b/block/stream.c
@@ -42,12 +42,10 @@ static int coroutine_fn stream_populate(BlockBackend *blk,
int64_t offset, uint64_t bytes,
void *buf)
{
- QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
-
assert(bytes < SIZE_MAX);
/* Copy-on-read the unallocated clusters */
- return blk_co_preadv(blk, offset, qiov.size, &qiov, BDRV_REQ_COPY_ON_READ);
+ return blk_co_pread(blk, offset, bytes, buf, BDRV_REQ_COPY_ON_READ);
}
static void stream_abort(Job *job)