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9pfs: break out virtio_init_iov_from_pdu 

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
This commit is contained in:
Wei Liu 2015-12-03 13:21:51 +00:00 committed by Aneesh Kumar K.V
parent f657b17a63
commit 592707af7f
3 changed files with 15 additions and 7 deletions
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12
hw/9pfs/virtio-9p-device.c
View File

@ -170,6 +170,18 @@ ssize_t virtio_pdu_vunmarshal(V9fsPDU *pdu, size_t offset,
offset, 1, fmt, ap);
}
void virtio_init_iov_from_pdu(V9fsPDU *pdu, struct iovec **piov,
unsigned int *pniov, bool is_write)
{
if (is_write) {
*piov = pdu->elem.out_sg;
*pniov = pdu->elem.out_num;
} else {
*piov = pdu->elem.in_sg;
*pniov = pdu->elem.in_num;
}
}
/* virtio-9p device */
static Property virtio_9p_properties[] = {

8
hw/9pfs/virtio-9p.c
View File

@ -1697,13 +1697,7 @@ static void v9fs_init_qiov_from_pdu(QEMUIOVector *qiov, V9fsPDU *pdu,
struct iovec *iov;
unsigned int niov;
if (is_write) {
iov = pdu->elem.out_sg;
niov = pdu->elem.out_num;
} else {
iov = pdu->elem.in_sg;
niov = pdu->elem.in_num;
}
virtio_init_iov_from_pdu(pdu, &iov, &niov, is_write);
qemu_iovec_init_external(&elem, iov, niov);
qemu_iovec_init(qiov, niov);

2
hw/9pfs/virtio-9p.h
View File

@ -327,6 +327,8 @@ ssize_t virtio_pdu_vmarshal(V9fsPDU *pdu, size_t offset,
const char *fmt, va_list ap);
ssize_t virtio_pdu_vunmarshal(V9fsPDU *pdu, size_t offset,
const char *fmt, va_list ap);
void virtio_init_iov_from_pdu(V9fsPDU *pdu, struct iovec **piov,
unsigned int *pniov, bool is_write);
#define TYPE_VIRTIO_9P "virtio-9p-device"
#define VIRTIO_9P(obj) \