[PATCH] ppc32: backport Book-E decrementer handling fix from 2.6

ChangeSet 1.1507, 2005/04/29 10:57:21-03:00, [email protected]

	[PATCH] ppc32: backport Book-E decrementer handling fix from 2.6
	
	Marcelo,
	
	this is backport of Matt Porter's patch for Book-E decrementer
	handling in timer_interrupt.
	
	The fix has been in 2.6 from August but never made it to 2.4, and I
	re-discovered this fix last week :)
	
	Original Matt's post to linuxppc-dev with explanation can be found at:
	http://ozlabs.org/pipermail/linuxppc-dev/2004-August/017458.html
	
	Signed-off-by: Eugene Surovegin <[email protected]>
	
	===== arch/ppc/kernel/time.c 1.16 vs edited =====



 time.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)


diff -Nru a/arch/ppc/kernel/time.c b/arch/ppc/kernel/time.c
--- a/arch/ppc/kernel/time.c	2005-04-30 12:16:47 -07:00
+++ b/arch/ppc/kernel/time.c	2005-04-30 12:16:47 -07:00
@@ -150,7 +150,7 @@
 
 	hardirq_enter(cpu);
 
-	while ((next_dec = tb_ticks_per_jiffy - tb_delta(&jiffy_stamp)) < 0) {
+	while ((next_dec = tb_ticks_per_jiffy - tb_delta(&jiffy_stamp)) <= 0) {
 		jiffy_stamp += tb_ticks_per_jiffy;
 		if (!user_mode(regs))
 			ppc_do_profile(instruction_pointer(regs));