patches/0207-mm-vmalloc.patch.patch

From 147a4f3e3d84de5cbd945ef753cb37aa1b5ff2e2 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 12 Jul 2011 11:39:36 +0200
Subject: [PATCH 207/271] mm-vmalloc.patch

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 mm/vmalloc.c |   14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 1196c77..d049fbd 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -782,7 +782,7 @@ static struct vmap_block *new_vmap_block(gfp_t gfp_mask)
 	struct vmap_block *vb;
 	struct vmap_area *va;
 	unsigned long vb_idx;
-	int node, err;
+	int node, err, cpu;
 
 	node = numa_node_id();
 
@@ -821,12 +821,13 @@ static struct vmap_block *new_vmap_block(gfp_t gfp_mask)
 	BUG_ON(err);
 	radix_tree_preload_end();
 
-	vbq = &get_cpu_var(vmap_block_queue);
+	cpu = get_cpu_light();
+	vbq = &__get_cpu_var(vmap_block_queue);
 	vb->vbq = vbq;
 	spin_lock(&vbq->lock);
 	list_add_rcu(&vb->free_list, &vbq->free);
 	spin_unlock(&vbq->lock);
-	put_cpu_var(vmap_block_queue);
+	put_cpu_light();
 
 	return vb;
 }
@@ -900,7 +901,7 @@ static void *vb_alloc(unsigned long size, gfp_t gfp_mask)
 	struct vmap_block *vb;
 	unsigned long addr = 0;
 	unsigned int order;
-	int purge = 0;
+	int purge = 0, cpu;
 
 	BUG_ON(size & ~PAGE_MASK);
 	BUG_ON(size > PAGE_SIZE*VMAP_MAX_ALLOC);
@@ -908,7 +909,8 @@ static void *vb_alloc(unsigned long size, gfp_t gfp_mask)
 
 again:
 	rcu_read_lock();
-	vbq = &get_cpu_var(vmap_block_queue);
+	cpu = get_cpu_light();
+	vbq = &__get_cpu_var(vmap_block_queue);
 	list_for_each_entry_rcu(vb, &vbq->free, free_list) {
 		int i;
 
@@ -945,7 +947,7 @@ next:
 	if (purge)
 		purge_fragmented_blocks_thiscpu();
 
-	put_cpu_var(vmap_block_queue);
+	put_cpu_light();
 	rcu_read_unlock();
 
 	if (!addr) {
-- 
1.7.10.4