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fork: Pass struct kernel_clone_args into copy_thread

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With io_uring we have started supporting tasks that are for most
purposes user space tasks that exclusively run code in kernel mode.

The kernel task that exec's init and tasks that exec user mode
helpers are also user mode tasks that just run kernel code
until they call kernel execve.

Pass kernel_clone_args into copy_thread so these oddball
tasks can be supported more cleanly and easily.

v2: Fix spelling of kenrel_clone_args on h8300
Link: https://lkml.kernel.org/r/20220506141512.516114-2-ebiederm@xmission.com
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman 2022-04-08 18:07:50 -05:00
parent 343f4c49f2
commit c5febea095
25 changed files with 116 additions and 58 deletions
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7
arch/ia64/kernel/process.c
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@ -295,9 +295,12 @@ ia64_load_extra (struct task_struct *task)
* so there is nothing to worry about.
*/
int
copy_thread(unsigned long clone_flags, unsigned long user_stack_base,
unsigned long user_stack_size, struct task_struct *p, unsigned long tls)
copy_thread(struct task_struct *p, const struct kernel_clone_args *args)
{
unsigned long clone_flags = args->flags;
unsigned long user_stack_base = args->stack;
unsigned long user_stack_size = args->stack_size;
unsigned long tls = args->tls;
extern char ia64_ret_from_clone;
struct switch_stack *child_stack, *stack;
unsigned long rbs, child_rbs, rbs_size;