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Commit 3eb93c55 authored by Thomas Gleixner's avatar Thomas Gleixner Committed by Benjamin Herrenschmidt
Browse files

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: default avatarThomas Gleixner <tglx@linutronix.de>
Acked-by: default avatarKumar Gala <galak@kernel.crashing.org>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 203041ad

arch/powerpc/mm/tlb_nohash.c

+3 −3
Original line number Original line Diff line number Diff line
@@ -150,7 +150,7 @@ EXPORT_SYMBOL(local_flush_tlb_page); 
 */

 */

#ifdef CONFIG_SMP

#ifdef CONFIG_SMP





static DEFINE_SPINLOCK(tlbivax_lock);

static DEFINE_RAW_SPINLOCK(tlbivax_lock);





static int mm_is_core_local(struct mm_struct *mm)

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)) {

		if (mmu_has_feature(MMU_FTR_USE_TLBIVAX_BCAST)) {

			int lock = mmu_has_feature(MMU_FTR_LOCK_BCAST_INVAL);

			int lock = mmu_has_feature(MMU_FTR_LOCK_BCAST_INVAL);

			if (lock)

			if (lock)

				spin_lock(&tlbivax_lock);

				raw_spin_lock(&tlbivax_lock);

			_tlbivax_bcast(vmaddr, pid, tsize, ind);

			_tlbivax_bcast(vmaddr, pid, tsize, ind);

			if (lock)

			if (lock)

				spin_unlock(&tlbivax_lock);

				raw_spin_unlock(&tlbivax_lock);

			goto bail;

			goto bail;

		} else {

		} else {

			struct tlb_flush_param p = {

			struct tlb_flush_param p = {