This reverts commit b8a0040ef7112439ad2efac6f1a79aa842b5924f.

Because rt pulls in 7b8d0e5, the above fix which comes from v3.0.24
should not be applied. kretprobe is a raw_spinlock_t for real-time.

Before the revert we get the following compile errors

kernel/kprobes.c:1664: warning: passing argument 1 of ‘rt_spin_lock’ from incompatible pointer type
kernel/kprobes.c:1666: warning: passing argument 1 of ‘rt_spin_unlock’ from incompatible pointer type

Note: This patch is for v3.0.24-rt42-rc1

Signed-off-by: John Kacur <jkacur@redhat.com>
---
 kernel/kprobes.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index a7dcf06..9cdbf26 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c

@@ -1661,9 +1661,9 @@ static int __kprobes pre_handler_kretprobe(struct kprobe *p,
 		ri->task = current;
 
 		if (rp->entry_handler && rp->entry_handler(ri, regs)) {
-			spin_lock_irqsave(&rp->lock, flags);
+			raw_spin_lock_irqsave(&rp->lock, flags);
 			hlist_add_head(&ri->hlist, &rp->free_instances);
-			spin_unlock_irqrestore(&rp->lock, flags);
+			raw_spin_unlock_irqrestore(&rp->lock, flags);
 			return 0;
 		}
 

-- 
1.7.2.3

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