From: Andi Kleen <ak@suse.de>
Date: Sun, 1 May 2005 15:58:51 +0000 (-0700)
Subject: [PATCH] x86_64: interrupt handling fix
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=be9e68703c53fece406bc2e40976a5cfe2a8e77f;p=deliverable%2Flinux.git

[PATCH] x86_64: interrupt handling fix

- Initialize workmask correctly on interrupt signal handling

- Readd missing cli's in the interrupt return path.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S
index 3233a15cc4e0..1086b5fcac21 100644
--- a/arch/x86_64/kernel/entry.S
+++ b/arch/x86_64/kernel/entry.S
@@ -296,6 +296,7 @@ int_very_careful:
 	call syscall_trace_leave
 	popq %rdi
 	andl $~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP),%edi
+	cli
 	jmp int_restore_rest
 	
 int_signal:
@@ -307,6 +308,7 @@ int_signal:
 1:	movl $_TIF_NEED_RESCHED,%edi	
 int_restore_rest:
 	RESTORE_REST
+	cli
 	jmp int_with_check
 	CFI_ENDPROC
 		
@@ -490,7 +492,8 @@ retint_signal:
 	call do_notify_resume
 	RESTORE_REST
 	cli
-	GET_THREAD_INFO(%rcx)	
+	GET_THREAD_INFO(%rcx)
+	movl $_TIF_WORK_MASK,%edi
 	jmp retint_check
 
 #ifdef CONFIG_PREEMPT