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block/block-backend: use QEMU_IOVEC_INIT_BUF

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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: 20190218140926.333779-4-vsementsov@virtuozzo.com
Message-Id: <20190218140926.333779-4-vsementsov@virtuozzo.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2019-02-18 17:09:12 +03:00 committed by Stefan Hajnoczi
parent 0d93ed0845
commit ae5a9592ce
1 changed files with 2 additions and 11 deletions
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13
block/block-backend.c
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@ -1204,17 +1204,8 @@ static int blk_prw(BlockBackend *blk, int64_t offset, uint8_t *buf,
int64_t bytes, CoroutineEntry co_entry,
BdrvRequestFlags flags)
{
QEMUIOVector qiov;
struct iovec iov;
BlkRwCo rwco;
iov = (struct iovec) {
.iov_base = buf,
.iov_len = bytes,
};
qemu_iovec_init_external(&qiov, &iov, 1);
rwco = (BlkRwCo) {
QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
BlkRwCo rwco = {
.blk = blk,
.offset = offset,
.iobuf = &qiov,