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Commit 8cddebd7 authored by Al Viro's avatar Al Viro
Browse files

um: don't bother with passing sp to do_fork() for fork(2)/vfork(2) 



copy_thread() on um will do the right thing when getting 0 for sp...

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent c4144670

arch/um/kernel/syscall.c

+2 −6
Original line number Diff line number Diff line
@@ -16,23 +16,19 @@ 


long sys_fork(void)

{

	return do_fork(SIGCHLD, UPT_SP(&current->thread.regs.regs),

	return do_fork(SIGCHLD, 0,

		      &current->thread.regs, 0, NULL, NULL);

}



long sys_vfork(void)

{

	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD,

		      UPT_SP(&current->thread.regs.regs),

	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, 0,

		      &current->thread.regs, 0, NULL, NULL);

}



long sys_clone(unsigned long clone_flags, unsigned long newsp,

	       void __user *parent_tid, void __user *child_tid)

{

	if (!newsp)

		newsp = UPT_SP(&current->thread.regs.regs);



	return do_fork(clone_flags, newsp, &current->thread.regs, 0, parent_tid,

		      child_tid);

}