[libvirt] [PATCHv2 10/27] lxc: reject unknown flags
Eric Blake
eblake at redhat.com
Wed Jul 13 20:43:11 UTC 2011
On 07/13/2011 06:21 AM, Matthias Bolte wrote:
> 2011/7/8 Eric Blake <eblake at redhat.com>:
>> * src/lxc/lxc_driver.c (lxcOpen, lxcDomainSetMemoryParameters)
>> (lxcDomainGetMemoryParameters): Reject unknown flags.
>> * src/lxc/lxc_container.c (lxcContainerStart): Use unsigned flags.
>> @@ -889,7 +889,7 @@ int lxcContainerStart(virDomainDefPtr def,
>> char *ttyPath)
>> {
>> pid_t pid;
>> - int flags;
>> + unsigned int flags;
>
> flags is passed to clone that takes int, so rename this to cflags (in
> line with oflags and fflags) and keep it as int.
>
> ACK, with the clone flags as int.
Good idea. I squashed this in, then pushed 9 and 10 (8 will be saved
for my round 3 posting, since you had more comments on the esx migration
flag handling).
Slowly making my way through this series...
diff --git i/src/lxc/lxc_container.c w/src/lxc/lxc_container.c
index ffa2f34..8e1860b 100644
--- i/src/lxc/lxc_container.c
+++ w/src/lxc/lxc_container.c
@@ -889,7 +889,7 @@ int lxcContainerStart(virDomainDefPtr def,
char *ttyPath)
{
pid_t pid;
- unsigned int flags;
+ int cflags;
int stacksize = getpagesize() * 4;
char *stack, *stacktop;
lxc_child_argv_t args = { def, nveths, veths, control, ttyPath,
@@ -902,19 +902,19 @@ int lxcContainerStart(virDomainDefPtr def,
}
stacktop = stack + stacksize;
- flags = CLONE_NEWPID|CLONE_NEWNS|CLONE_NEWUTS|CLONE_NEWIPC|SIGCHLD;
+ cflags = CLONE_NEWPID|CLONE_NEWNS|CLONE_NEWUTS|CLONE_NEWIPC|SIGCHLD;
if (userns_supported()) {
VIR_DEBUG("Enable user namespaces");
- flags |= CLONE_NEWUSER;
+ cflags |= CLONE_NEWUSER;
}
if (def->nets != NULL) {
VIR_DEBUG("Enable network namespaces");
- flags |= CLONE_NEWNET;
+ cflags |= CLONE_NEWNET;
}
- pid = clone(lxcContainerChild, stacktop, flags, &args);
+ pid = clone(lxcContainerChild, stacktop, cflags, &args);
VIR_FREE(stack);
VIR_DEBUG("clone() completed, new container PID is %d", pid);
--
Eric Blake eblake at redhat.com +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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