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authorMilton Miller2008-10-10 03:56:45 +0200
committerBenjamin Herrenschmidt2008-10-13 07:24:20 +0200
commit22d660ffd0db8d136b122751287d186e869ca474 (patch)
tree504f38589a833dd892073713eea1022196711504 /arch/powerpc/kernel/smp.c
parentpowerpc/xics: Reduce and comment xics IPI use of memory barriers (diff)
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powerpc/smp: No need to set_need_resched when getting a resched IPI
The comment in the code was asking "Do we have to do this?", and according to x86 and s390 the answer is no, the scheduler will do it before calling the arch hook. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/smp.c')
-rw-r--r--arch/powerpc/kernel/smp.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 5337ca7bb649..3ee736fa8b1d 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -101,8 +101,7 @@ void smp_message_recv(int msg)
generic_smp_call_function_interrupt();
break;
case PPC_MSG_RESCHEDULE:
- /* XXX Do we have to do this? */
- set_need_resched();
+ /* we notice need_resched on exit */
break;
case PPC_MSG_CALL_FUNC_SINGLE:
generic_smp_call_function_single_interrupt();