Re: [patch] threading fix, tid-2.5.47-A3

[Ingo Molnar]

this is the first patch, the introduction of the sys_set_thread_address()  
syscall. It returns the PID so that the newly initialized 'initial thread'
does not have to do an additional sys_gettid() call.

	Ingo

--- linux/arch/i386/kernel/entry.S.orig	2002-11-17 20:53:52.000000000 +0100
+++ linux/arch/i386/kernel/entry.S	2002-11-17 20:54:55.000000000 +0100
@@ -767,6 +767,7 @@
 	.long sys_epoll_ctl	/* 255 */
 	.long sys_epoll_wait
  	.long sys_remap_file_pages
+ 	.long sys_set_tid_address
 
 
 	.rept NR_syscalls-(.-sys_call_table)/4
--- linux/kernel/fork.c.orig	2002-11-17 20:53:52.000000000 +0100
+++ linux/kernel/fork.c	2002-11-17 20:54:55.000000000 +0100
@@ -676,6 +676,13 @@
 	p->flags = new_flags;
 }
 
+asmlinkage int sys_set_tid_address(int *user_tid)
+{
+	current->user_tid = user_tid;
+
+	return current->pid;
+}
+
 /*
  * This creates a new process as a copy of the old one,
  * but does not actually start it yet.