Displaying 2 results from an estimated 2 matches for "sector_num".
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sector_nr
2012 Dec 19
3
!!!!!help!I wouldn't be able to meet the deadline!(qcow format image file read operation in qemu-img-xen)[updated]
...static void qcow_aio_read_cb(void *opaque, int ret)
{
........
if (!acb->cluster_offset) {
if (bs->backing_hd) {
/* read from the base image */
acb->hd_aiocb = bdrv_aio_read(bs->backing_hd, //*************
acb->sector_num, acb->buf, acb->n, qcow_aio_read_cb, acb); //**************
//I read what the acb->buf points to, but find the reading operation is not finished.
if (acb->hd_aiocb == NULL)
goto fail;
} else {
/* Note: in this case, no need to wait */...
2013 May 24
0
Re: [Qemu-devel] use O_DIRECT to open disk images for IDE failed under xen-4.1.2 and qemu upstream
...)) { //if the address is
> > aligned-512, will no meet the conditions
> > > type |= QEMU_AIO_MISALIGNED;
> > > #ifdef CONFIG_LINUX_AIO
> > > } else if (s->use_aio) {
> > > return laio_submit(bs, s->aio_ctx, s->fd, sector_num, qiov,
> > > nb_sectors, cb, opaque, type);
> > > #endif
> > >
> > > Next process:
> > > static ssize_t handle_aiocb_rw(struct qemu_paiocb *aiocb)
> > > {
> > > ssize_t nbytes;
> > > char...