| Subject: mm-vmalloc.patch |
| From: Thomas Gleixner <tglx@linutronix.de> |
| Date: Tue, 12 Jul 2011 11:39:36 +0200 |
| |
| Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
| --- |
| mm/vmalloc.c | 14 ++++++++------ |
| 1 file changed, 8 insertions(+), 6 deletions(-) |
| |
| --- a/mm/vmalloc.c |
| +++ b/mm/vmalloc.c |
| @@ -792,7 +792,7 @@ static struct vmap_block *new_vmap_block |
| struct vmap_block *vb; |
| struct vmap_area *va; |
| unsigned long vb_idx; |
| - int node, err; |
| + int node, err, cpu; |
| |
| node = numa_node_id(); |
| |
| @@ -831,12 +831,13 @@ static struct vmap_block *new_vmap_block |
| 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; |
| } |
| @@ -910,7 +911,7 @@ static void *vb_alloc(unsigned long size |
| 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); |
| @@ -926,7 +927,8 @@ static void *vb_alloc(unsigned long size |
| |
| 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; |
| |
| @@ -963,7 +965,7 @@ next: |
| if (purge) |
| purge_fragmented_blocks_thiscpu(); |
| |
| - put_cpu_var(vmap_block_queue); |
| + put_cpu_light(); |
| rcu_read_unlock(); |
| |
| if (!addr) { |