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vhost-user-scsi: remove vdev_scsi_find_by_vu()

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The *dev pointer belongs to the vhost_scsi_dev_t parent.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Marc-André Lureau 2017-08-16 20:50:52 +02:00
parent 9a6903dbe3
commit 4309251a8c
1 changed files with 4 additions and 43 deletions
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47
contrib/vhost-user-scsi/vhost-user-scsi.c
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@ -55,8 +55,6 @@
/* Only 1 LUN and device supported today */ /* Only 1 LUN and device supported today */
#define VUS_MAX_LUNS 1 #define VUS_MAX_LUNS 1
#define VUS_MAX_DEVS 1
#define VUS_ISCSI_INITIATOR "iqn.2016-11.com.nutanix:vhost-user-scsi" #define VUS_ISCSI_INITIATOR "iqn.2016-11.com.nutanix:vhost-user-scsi"
typedef struct iscsi_lun { typedef struct iscsi_lun {
@ -72,8 +70,6 @@ typedef struct vhost_scsi_dev {
iscsi_lun_t luns[VUS_MAX_LUNS]; iscsi_lun_t luns[VUS_MAX_LUNS];
} vhost_scsi_dev_t; } vhost_scsi_dev_t;
static vhost_scsi_dev_t *vhost_scsi_devs[VUS_MAX_DEVS];
/** glib event loop integration for libvhost-user and misc callbacks **/ /** glib event loop integration for libvhost-user and misc callbacks **/
QEMU_BUILD_BUG_ON((int)G_IO_IN != (int)VU_WATCH_IN); QEMU_BUILD_BUG_ON((int)G_IO_IN != (int)VU_WATCH_IN);
@ -420,16 +416,13 @@ static int handle_cmd_sync(struct iscsi_context *ctx,
/** libvhost-user callbacks **/ /** libvhost-user callbacks **/
static vhost_scsi_dev_t *vdev_scsi_find_by_vu(VuDev *vu_dev);
static void vus_panic_cb(VuDev *vu_dev, const char *buf) static void vus_panic_cb(VuDev *vu_dev, const char *buf)
{ {
vhost_scsi_dev_t *vdev_scsi; vhost_scsi_dev_t *vdev_scsi;
assert(vu_dev); assert(vu_dev);
vdev_scsi = vdev_scsi_find_by_vu(vu_dev); vdev_scsi = container_of(vu_dev, vhost_scsi_dev_t, vu_dev);
if (buf) { if (buf) {
PERR("vu_panic: %s", buf); PERR("vu_panic: %s", buf);
} }
@ -447,12 +440,7 @@ static void vus_add_watch_cb(VuDev *vu_dev, int fd, int vu_evt, vu_watch_cb cb,
assert(fd >= 0); assert(fd >= 0);
assert(cb); assert(cb);
vdev_scsi = vdev_scsi_find_by_vu(vu_dev); vdev_scsi = container_of(vu_dev, vhost_scsi_dev_t, vu_dev);
if (!vdev_scsi) {
vus_panic_cb(vu_dev, NULL);
return;
}
id = (guint)(uintptr_t)g_tree_lookup(vdev_scsi->fdmap, id = (guint)(uintptr_t)g_tree_lookup(vdev_scsi->fdmap,
(gpointer)(uintptr_t)fd); (gpointer)(uintptr_t)fd);
if (id) { if (id) {
@ -473,12 +461,7 @@ static void vus_del_watch_cb(VuDev *vu_dev, int fd)
assert(vu_dev); assert(vu_dev);
assert(fd >= 0); assert(fd >= 0);
vdev_scsi = vdev_scsi_find_by_vu(vu_dev); vdev_scsi = container_of(vu_dev, vhost_scsi_dev_t, vu_dev);
if (!vdev_scsi) {
vus_panic_cb(vu_dev, NULL);
return;
}
id = (guint)(uintptr_t)g_tree_lookup(vdev_scsi->fdmap, id = (guint)(uintptr_t)g_tree_lookup(vdev_scsi->fdmap,
(gpointer)(uintptr_t)fd); (gpointer)(uintptr_t)fd);
if (id) { if (id) {
@ -506,12 +489,7 @@ static void vus_proc_req(VuDev *vu_dev, int idx)
assert(vu_dev); assert(vu_dev);
vdev_scsi = vdev_scsi_find_by_vu(vu_dev); vdev_scsi = container_of(vu_dev, vhost_scsi_dev_t, vu_dev);
if (!vdev_scsi) {
vus_panic_cb(vu_dev, NULL);
return;
}
if (idx < 0 || idx >= VHOST_MAX_NR_VIRTQUEUE) { if (idx < 0 || idx >= VHOST_MAX_NR_VIRTQUEUE) {
PERR("VQ Index out of range: %d", idx); PERR("VQ Index out of range: %d", idx);
vus_panic_cb(vu_dev, NULL); vus_panic_cb(vu_dev, NULL);
@ -656,22 +634,6 @@ fail:
/** vhost-user-scsi **/ /** vhost-user-scsi **/
static vhost_scsi_dev_t *vdev_scsi_find_by_vu(VuDev *vu_dev)
{
int i;
assert(vu_dev);
for (i = 0; i < VUS_MAX_DEVS; i++) {
if (&vhost_scsi_devs[i]->vu_dev == vu_dev) {
return vhost_scsi_devs[i];
}
}
PERR("Unknown VuDev %p", vu_dev);
return NULL;
}
static void vdev_scsi_free(vhost_scsi_dev_t *vdev_scsi) static void vdev_scsi_free(vhost_scsi_dev_t *vdev_scsi)
{ {
if (!vdev_scsi) { if (!vdev_scsi) {
@ -790,7 +752,6 @@ int main(int argc, char **argv)
goto err; goto err;
} }
vdev_scsi = vdev_scsi_new(sock); vdev_scsi = vdev_scsi_new(sock);
vhost_scsi_devs[0] = vdev_scsi;
if (vdev_scsi_add_iscsi_lun(vdev_scsi, iscsi_uri, 0) != 0) { if (vdev_scsi_add_iscsi_lun(vdev_scsi, iscsi_uri, 0) != 0) {
goto err; goto err;