diff options
| author | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | 2019-02-18 17:09:16 +0300 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2019-02-22 09:42:13 +0000 |
| commit | b2589d66b40ed0595d5b4c16827324d0f98c5106 (patch) | |
| tree | 4b5a16f12b4394d171d5f192ab45c6c286c629b9 /block/parallels.c | |
| parent | 8040446d3080ebd446c619364f60b7643732a6ab (diff) | |
block/parallels: use QEMU_IOVEC_INIT_BUF
Use new QEMU_IOVEC_INIT_BUF() instead of
qemu_iovec_init_external( ... , 1), which simplifies the code.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190218140926.333779-8-vsementsov@virtuozzo.com
Message-Id: <20190218140926.333779-8-vsementsov@virtuozzo.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'block/parallels.c')
| -rw-r--r-- | block/parallels.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/block/parallels.c b/block/parallels.c index cc9445879d..15bc97b759 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -220,23 +220,20 @@ static int64_t allocate_clusters(BlockDriverState *bs, int64_t sector_num, if (bs->backing) { int64_t nb_cow_sectors = to_allocate * s->tracks; int64_t nb_cow_bytes = nb_cow_sectors << BDRV_SECTOR_BITS; - QEMUIOVector qiov; - struct iovec iov = { - .iov_len = nb_cow_bytes, - .iov_base = qemu_blockalign(bs, nb_cow_bytes) - }; - qemu_iovec_init_external(&qiov, &iov, 1); + QEMUIOVector qiov = + QEMU_IOVEC_INIT_BUF(qiov, qemu_blockalign(bs, nb_cow_bytes), + nb_cow_bytes); ret = bdrv_co_preadv(bs->backing, idx * s->tracks * BDRV_SECTOR_SIZE, nb_cow_bytes, &qiov, 0); if (ret < 0) { - qemu_vfree(iov.iov_base); + qemu_vfree(qemu_iovec_buf(&qiov)); return ret; } ret = bdrv_co_pwritev(bs->file, s->data_end * BDRV_SECTOR_SIZE, nb_cow_bytes, &qiov, 0); - qemu_vfree(iov.iov_base); + qemu_vfree(qemu_iovec_buf(&qiov)); if (ret < 0) { return ret; } |