diff options
| author | Vladimir Sementsov-Ogievskiy | 2019-06-04 18:15:14 +0200 |
|---|---|---|
| committer | Stefan Hajnoczi | 2019-08-27 15:58:42 +0200 |
| commit | 5396234b96a2ac743f48644529771498e036e698 (patch) | |
| tree | 23744dbb57772a28809c6da3eb55a344563a445e /util/iov.c | |
| parent | block/qcow2: implement .bdrv_co_preadv_part (diff) | |
| download | qemu-5396234b96a2ac743f48644529771498e036e698.tar.gz qemu-5396234b96a2ac743f48644529771498e036e698.tar.xz qemu-5396234b96a2ac743f48644529771498e036e698.zip | |
block/qcow2: implement .bdrv_co_pwritev(_compressed)_part
Implement and use new interface to get rid of hd_qiov.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190604161514.262241-13-vsementsov@virtuozzo.com
Message-Id: <20190604161514.262241-13-vsementsov@virtuozzo.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'util/iov.c')
| -rw-r--r-- | util/iov.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/util/iov.c b/util/iov.c index 9ac0261853..5059e10431 100644 --- a/util/iov.c +++ b/util/iov.c @@ -401,6 +401,16 @@ static struct iovec *qiov_slice(QEMUIOVector *qiov, return iov; } +int qemu_iovec_subvec_niov(QEMUIOVector *qiov, size_t offset, size_t len) +{ + size_t head, tail; + int niov; + + qiov_slice(qiov, offset, len, &head, &tail, &niov); + + return niov; +} + /* * Compile new iovec, combining @head_buf buffer, sub-qiov of @mid_qiov, * and @tail_buf buffer into new qiov. |