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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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4
kernel/fork.c
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@ -1979,7 +1979,7 @@ static __latent_entropy struct task_struct *copy_process(
struct task_struct *p;
struct multiprocess_signals delayed;
struct file *pidfile = NULL;
u64 clone_flags = args->flags;
const u64 clone_flags = args->flags;
struct nsproxy *nsp = current->nsproxy;
/*
@ -2240,7 +2240,7 @@ static __latent_entropy struct task_struct *copy_process(
retval = copy_io(clone_flags, p);
if (retval)
goto bad_fork_cleanup_namespaces;
retval = copy_thread(clone_flags, args->stack, args->stack_size, p, args->tls);
retval = copy_thread(p, args);
if (retval)
goto bad_fork_cleanup_io;