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authorDavid S. Miller <davem@davemloft.net>2008-05-03 21:00:55 -0700
committerDavid S. Miller <davem@davemloft.net>2008-05-03 21:00:55 -0700
commit81d6ec6b36bdf30e283ab98e7646571484401dbb (patch)
treea0c7cfd1164f698ccab28e8fb1923423a035e9eb /arch/sparc64/kernel/smp.c
parent5b81d689e57a85b1ff60edfb65e5b8a12d28ecee (diff)
Revert "[SPARC64]: Wrap SMP IPIs with irq_enter()/irq_exit()."
This reverts commit 2664ef44cf5053d2b7dff01cecac70bc601a5f68. Ingo moved around where the softlockup dependency sits so this change is no longer necessary. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel/smp.c')
-rw-r--r--arch/sparc64/kernel/smp.c27
1 files changed, 5 insertions, 22 deletions
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index 3aba47624df..0d6403a630a 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -865,21 +865,14 @@ void smp_call_function_client(int irq, struct pt_regs *regs)
void *info = call_data->info;
clear_softint(1 << irq);
-
- irq_enter();
-
- if (!call_data->wait) {
- /* let initiator proceed after getting data */
- atomic_inc(&call_data->finished);
- }
-
- func(info);
-
- irq_exit();
-
if (call_data->wait) {
/* let initiator proceed only after completion */
+ func(info);
atomic_inc(&call_data->finished);
+ } else {
+ /* let initiator proceed after getting data */
+ atomic_inc(&call_data->finished);
+ func(info);
}
}
@@ -1041,9 +1034,7 @@ void smp_receive_signal(int cpu)
void smp_receive_signal_client(int irq, struct pt_regs *regs)
{
- irq_enter();
clear_softint(1 << irq);
- irq_exit();
}
void smp_new_mmu_context_version_client(int irq, struct pt_regs *regs)
@@ -1051,8 +1042,6 @@ void smp_new_mmu_context_version_client(int irq, struct pt_regs *regs)
struct mm_struct *mm;
unsigned long flags;
- irq_enter();
-
clear_softint(1 << irq);
/* See if we need to allocate a new TLB context because
@@ -1072,8 +1061,6 @@ void smp_new_mmu_context_version_client(int irq, struct pt_regs *regs)
load_secondary_context(mm);
__flush_tlb_mm(CTX_HWBITS(mm->context),
SECONDARY_CONTEXT);
-
- irq_exit();
}
void smp_new_mmu_context_version(void)
@@ -1239,8 +1226,6 @@ void smp_penguin_jailcell(int irq, struct pt_regs *regs)
{
clear_softint(1 << irq);
- irq_enter();
-
preempt_disable();
__asm__ __volatile__("flushw");
@@ -1253,8 +1238,6 @@ void smp_penguin_jailcell(int irq, struct pt_regs *regs)
prom_world(0);
preempt_enable();
-
- irq_exit();
}
/* /proc/profile writes can call this, don't __init it please. */