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authorVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>2019-02-18 17:09:13 +0300
committerStefan Hajnoczi <stefanha@redhat.com>2019-02-22 09:42:13 +0000
commit31e0a6e1af78fcca60fa30c345fb7b54d49da0c9 (patch)
tree85a85e62799272bf3679bc3496fe4f70038adec4
parentae5a9592ce0d5c11e40667f217b2e2ceba33927f (diff)
block/backup: 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: 20190218140926.333779-5-vsementsov@virtuozzo.com Message-Id: <20190218140926.333779-5-vsementsov@virtuozzo.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
-rw-r--r--block/backup.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/block/backup.c b/block/backup.c
index 435414e964..9988753249 100644
--- a/block/backup.c
+++ b/block/backup.c
@@ -107,7 +107,6 @@ static int coroutine_fn backup_cow_with_bounce_buffer(BackupBlockJob *job,
void **bounce_buffer)
{
int ret;
- struct iovec iov;
QEMUIOVector qiov;
BlockBackend *blk = job->common.blk;
int nbytes;
@@ -119,9 +118,7 @@ static int coroutine_fn backup_cow_with_bounce_buffer(BackupBlockJob *job,
if (!*bounce_buffer) {
*bounce_buffer = blk_blockalign(blk, job->cluster_size);
}
- iov.iov_base = *bounce_buffer;
- iov.iov_len = nbytes;
- qemu_iovec_init_external(&qiov, &iov, 1);
+ qemu_iovec_init_buf(&qiov, *bounce_buffer, nbytes);
ret = blk_co_preadv(blk, start, qiov.size, &qiov, read_flags);
if (ret < 0) {