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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-09-11 00:44:54 +0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-10-01 06:53:31 +0400 |
| commit | 7076aada1040de4ed79a5977dbabdb5e5ea5e249 (patch) | |
| tree | dfcf480d21cd714a1cc42f38417c427d06526f5a /arch/x86/kernel/process.c | |
| parent | 44f4b56b54d2ab5d06c1726f2cde8ca15c8fac47 (diff) | |
| download | linux-7076aada1040de4ed79a5977dbabdb5e5ea5e249.tar.xz | |
x86: split ret_from_fork
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/x86/kernel/process.c')
| -rw-r--r-- | arch/x86/kernel/process.c | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 7162e9c1f598..6947ec968bf8 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -299,44 +299,6 @@ sys_clone(unsigned long clone_flags, unsigned long newsp, } /* - * This gets run with %si containing the - * function to call, and %di containing - * the "args". - */ -extern void kernel_thread_helper(void); - -/* - * Create a kernel thread - */ -int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags) -{ - struct pt_regs regs; - - memset(®s, 0, sizeof(regs)); - - regs.si = (unsigned long) fn; - regs.di = (unsigned long) arg; - -#ifdef CONFIG_X86_32 - regs.ds = __USER_DS; - regs.es = __USER_DS; - regs.fs = __KERNEL_PERCPU; - regs.gs = __KERNEL_STACK_CANARY; -#else - regs.ss = __KERNEL_DS; -#endif - - regs.orig_ax = -1; - regs.ip = (unsigned long) kernel_thread_helper; - regs.cs = __KERNEL_CS | get_kernel_rpl(); - regs.flags = X86_EFLAGS_IF | X86_EFLAGS_BIT1; - - /* Ok, create the new process.. */ - return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, ®s, 0, NULL, NULL); -} -EXPORT_SYMBOL(kernel_thread); - -/* * sys_execve() executes a new program. */ long sys_execve(const char __user *name, |