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Merge remote-tracking branch 'sstabellini/xen-2013-10-10' into staging

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# By Matthew Daley (1) and Roger Pau Monné (1)
# Via Stefano Stabellini
* sstabellini/xen-2013-10-10:
  qemu/xen: make use of xenstore relative paths
  xen_disk: mark ioreq as mapped before unmapping in error case
This commit is contained in:
Anthony Liguori 2013-10-10 10:03:38 -07:00
commit f2c6bcfc2e
3 changed files with 8 additions and 14 deletions
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1
hw/block/xen_disk.c
View File

@ -405,6 +405,7 @@ static int ioreq_map(struct ioreq *ioreq)
xen_be_printf(&ioreq->blkdev->xendev, 0,
"can't map grant ref %d (%s, %d maps)\n",
refs[i], strerror(errno), ioreq->blkdev->cnt_map);
ioreq->mapped = 1;
ioreq_unmap(ioreq);
return -1;
}

19
hw/xen/xen_backend.c
View File

@ -205,7 +205,6 @@ static struct XenDevice *xen_be_get_xendev(const char *type, int dom, int dev,
struct XenDevOps *ops)
{
struct XenDevice *xendev;
char *dom0;
xendev = xen_be_find_xendev(type, dom, dev);
if (xendev) {
@ -219,12 +218,10 @@ static struct XenDevice *xen_be_get_xendev(const char *type, int dom, int dev,
xendev->dev = dev;
xendev->ops = ops;
dom0 = xs_get_domain_path(xenstore, 0);
snprintf(xendev->be, sizeof(xendev->be), "%s/backend/%s/%d/%d",
dom0, xendev->type, xendev->dom, xendev->dev);
snprintf(xendev->be, sizeof(xendev->be), "backend/%s/%d/%d",
xendev->type, xendev->dom, xendev->dev);
snprintf(xendev->name, sizeof(xendev->name), "%s-%d",
xendev->type, xendev->dev);
free(dom0);
xendev->debug = debug;
xendev->local_port = -1;
@ -570,14 +567,12 @@ static int xenstore_scan(const char *type, int dom, struct XenDevOps *ops)
{
struct XenDevice *xendev;
char path[XEN_BUFSIZE], token[XEN_BUFSIZE];
char **dev = NULL, *dom0;
char **dev = NULL;
unsigned int cdev, j;
/* setup watch */
dom0 = xs_get_domain_path(xenstore, 0);
snprintf(token, sizeof(token), "be:%p:%d:%p", type, dom, ops);
snprintf(path, sizeof(path), "%s/backend/%s/%d", dom0, type, dom);
free(dom0);
snprintf(path, sizeof(path), "backend/%s/%d", type, dom);
if (!xs_watch(xenstore, path, token)) {
xen_be_printf(NULL, 0, "xen be: watching backend path (%s) failed\n", path);
return -1;
@ -603,12 +598,10 @@ static void xenstore_update_be(char *watch, char *type, int dom,
struct XenDevOps *ops)
{
struct XenDevice *xendev;
char path[XEN_BUFSIZE], *dom0, *bepath;
char path[XEN_BUFSIZE], *bepath;
unsigned int len, dev;
dom0 = xs_get_domain_path(xenstore, 0);
len = snprintf(path, sizeof(path), "%s/backend/%s/%d", dom0, type, dom);
free(dom0);
len = snprintf(path, sizeof(path), "backend/%s/%d", type, dom);
if (strncmp(path, watch, len) != 0) {
return;
}

2
xen-all.c
View File

@ -949,7 +949,7 @@ static void xenstore_record_dm_state(struct xs_handle *xs, const char *state)
exit(1);
}
snprintf(path, sizeof (path), "/local/domain/0/device-model/%u/state", xen_domid);
snprintf(path, sizeof (path), "device-model/%u/state", xen_domid);
if (!xs_write(xs, XBT_NULL, path, state, strlen(state))) {
fprintf(stderr, "error recording dm state\n");
exit(1);