powerpc: Convert tlbivax_lock to raw_spinlock

tlbivax_lock needs to be a real spinlock in RT. Convert it to
raw_spinlock.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/mm/tlb_nohash.c b/arch/powerpc/mm/tlb_nohash.c
index 2fbc680..e81d5d6 100644 (file)
--- a/arch/powerpc/mm/tlb_nohash.c
+++ b/arch/powerpc/mm/tlb_nohash.c
@@ -150,7 +150,7 @@ EXPORT_SYMBOL(local_flush_tlb_page);
  */
 #ifdef CONFIG_SMP
 
-static DEFINE_SPINLOCK(tlbivax_lock);
+static DEFINE_RAW_SPINLOCK(tlbivax_lock);
 
 static int mm_is_core_local(struct mm_struct *mm)
 {
@@ -232,10 +232,10 @@ void __flush_tlb_page(struct mm_struct *mm, unsigned long vmaddr,
                if (mmu_has_feature(MMU_FTR_USE_TLBIVAX_BCAST)) {
                        int lock = mmu_has_feature(MMU_FTR_LOCK_BCAST_INVAL);
                        if (lock)
-                               spin_lock(&tlbivax_lock);
+                               raw_spin_lock(&tlbivax_lock);
                        _tlbivax_bcast(vmaddr, pid, tsize, ind);
                        if (lock)
-                               spin_unlock(&tlbivax_lock);
+                               raw_spin_unlock(&tlbivax_lock);
                        goto bail;
                } else {
                        struct tlb_flush_param p = {