Hi all,
question:
In copy_process() we have:
static struct task_struct *copy_process(unsigned long clone_flags,
unsigned long stack_start,
struct pt_regs *regs,
unsigned long stack_size,
int __user *child_tidptr,
struct pid *pid,
int trace)
{
int retval;
struct task_struct *p;
int cgroup_callbacks_done = 0;
if ((clone_flags & (CLONE_NEWNS|CLONE_FS)) == (CLONE_NEWNS|CLONE_FS))
return ERR_PTR(-EINVAL);
...
...
see :http://lxr.free-electrons.com/source/kernel/fork.c#L1128
Why is the CLONE_NEWNS, when set, cause an error in copy_process(), as
shown above ?
is it not permitted that CLONE_NEWNS will be set ?
rgs,
Kevin
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