[patch 083/198] x86_64: Fix a small missing schedule race

[akpm@osdl.org]

From: "Andi Kleen" <ak@suse.de>

Could lead to a lost reschedule event when the process already rescheduled on
exception exit, and needs it again while still being in the kernel.  Unlikely
case though.

Also remove one redundant cli in another entry.S path.

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

 25-akpm/arch/x86_64/kernel/entry.S |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -puN arch/x86_64/kernel/entry.S~x86_64-fix-a-small-missing-schedule-race arch/x86_64/kernel/entry.S
--- 25/arch/x86_64/kernel/entry.S~x86_64-fix-a-small-missing-schedule-race	2005-04-12 03:21:23.062630848 -0700
+++ 25-akpm/arch/x86_64/kernel/entry.S	2005-04-12 03:21:23.066630240 -0700
@@ -284,6 +284,7 @@ int_careful:
 	pushq %rdi
 	call schedule
 	popq %rdi
+	cli
 	jmp int_with_check
 
 	/* handle signals and tracing -- both require a full stack frame */
@@ -453,7 +454,6 @@ retint_check:			
 	andl %edi,%edx
 	jnz  retint_careful
 retint_swapgs:	 	
-	cli
 	swapgs 
 retint_restore_args:				
 	cli
_
-
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