From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 18 Feb 2010 02:22:44 +0000 (+0000)
Subject: powerpc: Convert tlbivax_lock to raw_spinlock
X-Git-Tag: v2.6.35.3~1879^2~4
X-Git-Url: https://rtime.felk.cvut.cz/gitweb/linux-imx.git/commitdiff_plain/3eb93c558a9e3651f86a88565e59488e936ff346

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 2fbc680c2c71..e81d5d67f834 100644
--- 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 = {