commit 8cf2c51927bbeefafc25193d01b91f9ed3806e96
author Andi Kleen <ak@suse.de> Sat Oct 21 18:37:02 2006 +0200
committer Andi Kleen <andi@basil.nowhere.org> Sat Oct 21 18:37:02 2006 +0200
tree 5618f59fc5a9b98e13465746c170433fa37c3eb7
parent 6bf2dafad18c119beb534cbb3d882fe7a6c3f529

[PATCH] x86: Revert new unwind kernel stack termination

Jan convinced me that it was unnecessary because the assembly stubs do
this already on the stack.

Cc: jbeulich@novell.com

Signed-off-by: Andi Kleen <ak@suse.de>

arch/i386/kernel/process.c

diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index 57d3759..1e1fa3e 100644
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -336,7 +336,6 @@
 int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
 {
 	struct pt_regs regs;
-	int err;
 
 	memset(&regs, 0, sizeof(regs));
 
@@ -351,10 +350,7 @@
 	regs.eflags = X86_EFLAGS_IF | X86_EFLAGS_SF | X86_EFLAGS_PF | 0x2;
 
 	/* Ok, create the new process.. */
-	err = do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
-	if (err == 0) /* terminate kernel stack */
-		task_pt_regs(current)->eip = 0;
-	return err;
+	return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
 }
 EXPORT_SYMBOL(kernel_thread);