[PATCH 3/5] powerpc/kprobes: Use preempt_enable() rather than the no_resched variant

["Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>]

preempt_enable_no_resched() is just the same as preempt_enable() when we
are in a irqs disabled context. kprobe_handler() and the post/fault
handlers are all called with irqs disabled. As such, convert those to
just use preempt_enable().

Reported-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
---
 arch/powerpc/kernel/kprobes.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c
index 88f42de681e1f8..86ca5a61ea9afb 100644
--- a/arch/powerpc/kernel/kprobes.c
+++ b/arch/powerpc/kernel/kprobes.c
@@ -369,7 +369,7 @@ int kprobe_handler(struct pt_regs *regs)
 
 			if (ret > 0) {
 				restore_previous_kprobe(kcb);
-				preempt_enable_no_resched();
+				preempt_enable();
 				return 1;
 			}
 		}
@@ -382,7 +382,7 @@ int kprobe_handler(struct pt_regs *regs)
 	if (p->pre_handler && p->pre_handler(p, regs)) {
 		/* handler changed execution path, so skip ss setup */
 		reset_current_kprobe();
-		preempt_enable_no_resched();
+		preempt_enable();
 		return 1;
 	}
 
@@ -395,7 +395,7 @@ int kprobe_handler(struct pt_regs *regs)
 
 			kcb->kprobe_status = KPROBE_HIT_SSDONE;
 			reset_current_kprobe();
-			preempt_enable_no_resched();
+			preempt_enable();
 			return 1;
 		}
 	}
@@ -404,7 +404,7 @@ int kprobe_handler(struct pt_regs *regs)
 	return 1;
 
 no_kprobe:
-	preempt_enable_no_resched();
+	preempt_enable();
 	return ret;
 }
 NOKPROBE_SYMBOL(kprobe_handler);
@@ -490,7 +490,7 @@ int kprobe_post_handler(struct pt_regs *regs)
 	}
 	reset_current_kprobe();
 out:
-	preempt_enable_no_resched();
+	preempt_enable();
 
 	/*
 	 * if somebody else is singlestepping across a probe point, msr
@@ -529,7 +529,7 @@ int kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 			restore_previous_kprobe(kcb);
 		else
 			reset_current_kprobe();
-		preempt_enable_no_resched();
+		preempt_enable();
 		break;
 	case KPROBE_HIT_ACTIVE:
 	case KPROBE_HIT_SSDONE:
-- 
2.38.0