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| author | Eric W. Biederman <ebiederm@xmission.com> | 2022-04-09 02:07:50 +0300 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2022-05-07 17:01:48 +0300 |
| commit | c5febea0956fd3874e8fb59c6f84d68f128d68f8 (patch) | |
| tree | 1fd7c1fa7491beff47fd863dfc89581cd726fc69 /arch/sparc | |
| parent | 343f4c49f2438d8920f1f76fa823ee59b91f02e4 (diff) | |
| download | linux-c5febea0956fd3874e8fb59c6f84d68f128d68f8.tar.xz | |
fork: Pass struct kernel_clone_args into copy_thread
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>
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/kernel/process_32.c | 7 | ||||
| -rw-r--r-- | arch/sparc/kernel/process_64.c | 7 |
2 files changed, 10 insertions, 4 deletions
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c index 88c0c14aaff0..80e6775e18c0 100644 --- a/arch/sparc/kernel/process_32.c +++ b/arch/sparc/kernel/process_32.c @@ -259,9 +259,12 @@ clone_stackframe(struct sparc_stackf __user *dst, extern void ret_from_fork(void); extern void ret_from_kernel_thread(void); -int copy_thread(unsigned long clone_flags, unsigned long sp, unsigned long arg, - struct task_struct *p, unsigned long tls) +int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { + unsigned long clone_flags = args->flags; + unsigned long sp = args->stack; + unsigned long arg = args->stack_size; + unsigned long tls = args->tls; struct thread_info *ti = task_thread_info(p); struct pt_regs *childregs, *regs = current_pt_regs(); char *new_stack; diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c index 9a2ceb080ac9..38c46ca826d9 100644 --- a/arch/sparc/kernel/process_64.c +++ b/arch/sparc/kernel/process_64.c @@ -564,9 +564,12 @@ barf: * Parent --> %o0 == childs pid, %o1 == 0 * Child --> %o0 == parents pid, %o1 == 1 */ -int copy_thread(unsigned long clone_flags, unsigned long sp, unsigned long arg, - struct task_struct *p, unsigned long tls) +int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { + unsigned long clone_flags = args->flags; + unsigned long sp = args->stack; + unsigned long arg = args->stack_size; + unsigned long tls = args->tls; struct thread_info *t = task_thread_info(p); struct pt_regs *regs = current_pt_regs(); struct sparc_stackf *parent_sf; |