xiaomi-sm8450/android_kernel_xiaomi_sm8450
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preparation for generic kernel_thread()

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Let architectures select GENERIC_KERNEL_THREAD and have their copy_thread()
treat NULL regs as "it came from kernel_thread(), sp argument contains
the function new thread will be calling and stack_size - the argument for
that function".  Switching the architectures begins shortly...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2012-09-21 19:55:31 -04:00
parent a4d94ff8aa
commit 2aa3a7f866
3 changed files with 18 additions and 1 deletions
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3
include/linux/sched.h
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@@ -2325,6 +2325,9 @@ extern int do_execve(const char *,
const char __user * const __user *, struct pt_regs *);
extern long do_fork(unsigned long, unsigned long, struct pt_regs *, unsigned long, int __user *, int __user *);
struct task_struct *fork_idle(int);
#ifdef CONFIG_GENERIC_KERNEL_THREAD
extern pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
#endif
extern void set_task_comm(struct task_struct *tsk, char *from);
extern char *get_task_comm(char *to, struct task_struct *tsk);