[Bluetooth] Remove unused host controller attributes

[pandora-kernel.git] / mm / mempolicy.c

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index ec4a1a9..cf18f09 100644 (file)
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -105,7 +105,7 @@ static struct kmem_cache *sn_cache;
 
 /* Highest zone. An specific allocation for a zone below that is not
    policied. */
-int policy_zone = ZONE_DMA;
+enum zone_type policy_zone = ZONE_DMA;
 
 struct mempolicy default_policy = {
        .refcnt = ATOMIC_INIT(1), /* never free it */
@@ -137,7 +137,8 @@ static int mpol_check_policy(int mode, nodemask_t *nodes)
 static struct zonelist *bind_zonelist(nodemask_t *nodes)
 {
        struct zonelist *zl;
-       int num, max, nd, k;
+       int num, max, nd;
+       enum zone_type k;
 
        max = 1 + MAX_NR_ZONES * nodes_weight(*nodes);
        zl = kmalloc(sizeof(struct zone *) * max, GFP_KERNEL);
@@ -148,12 +149,16 @@ static struct zonelist *bind_zonelist(nodemask_t *nodes)
           lower zones etc. Avoid empty zones because the memory allocator
           doesn't like them. If you implement node hot removal you
           have to fix that. */
-       for (k = policy_zone; k >= 0; k--) { 
+       k = policy_zone;
+       while (1) {
                for_each_node_mask(nd, *nodes) { 
                        struct zone *z = &NODE_DATA(nd)->node_zones[k];
                        if (z->present_pages > 0) 
                                zl->zones[num++] = z;
                }
+               if (k == 0)
+                       break;
+               k--;
        }
        zl->zones[num] = NULL;
        return zl;
@@ -482,7 +487,7 @@ static void get_zonemask(struct mempolicy *p, nodemask_t *nodes)
        switch (p->policy) {
        case MPOL_BIND:
                for (i = 0; p->v.zonelist->zones[i]; i++)
-                       node_set(p->v.zonelist->zones[i]->zone_pgdat->node_id,
+                       node_set(zone_to_nid(p->v.zonelist->zones[i]),
                                *nodes);
                break;
        case MPOL_DEFAULT:
@@ -632,6 +637,10 @@ int do_migrate_pages(struct mm_struct *mm,
 
        down_read(&mm->mmap_sem);
 
+       err = migrate_vmas(mm, from_nodes, to_nodes, flags);
+       if (err)
+               goto out;
+
 /*
  * Find a 'source' bit set in 'tmp' whose corresponding 'dest'
  * bit in 'to' is not also set in 'tmp'.  Clear the found 'source'
@@ -691,7 +700,7 @@ int do_migrate_pages(struct mm_struct *mm,
                if (err < 0)
                        break;
        }
-
+out:
        up_read(&mm->mmap_sem);
        if (err < 0)
                return err;
@@ -1127,7 +1136,9 @@ static unsigned interleave_nodes(struct mempolicy *policy)
  */
 unsigned slab_node(struct mempolicy *policy)
 {
-       switch (policy->policy) {
+       int pol = policy ? policy->policy : MPOL_DEFAULT;
+
+       switch (pol) {
        case MPOL_INTERLEAVE:
                return interleave_nodes(policy);
 
@@ -1136,7 +1147,7 @@ unsigned slab_node(struct mempolicy *policy)
                 * Follow bind policy behavior and start allocation at the
                 * first node.
                 */
-               return policy->v.zonelist->zones[0]->zone_pgdat->node_id;
+               return zone_to_nid(policy->v.zonelist->zones[0]);
 
        case MPOL_PREFERRED:
                if (policy->v.preferred_node >= 0)
@@ -1172,7 +1183,15 @@ static inline unsigned interleave_nid(struct mempolicy *pol,
        if (vma) {
                unsigned long off;
 
-               off = vma->vm_pgoff;
+               /*
+                * for small pages, there is no difference between
+                * shift and PAGE_SHIFT, so the bit-shift is safe.
+                * for huge pages, since vm_pgoff is in units of small
+                * pages, we need to shift off the always 0 bits to get
+                * a useful offset.
+                */
+               BUG_ON(shift < PAGE_SHIFT);
+               off = vma->vm_pgoff >> (shift - PAGE_SHIFT);
                off += (addr - vma->vm_start) >> shift;
                return offset_il_node(pol, vma, off);
        } else
@@ -1205,10 +1224,8 @@ static struct page *alloc_page_interleave(gfp_t gfp, unsigned order,
 
        zl = NODE_DATA(nid)->node_zonelists + gfp_zone(gfp);
        page = __alloc_pages(gfp, order, zl);
-       if (page && page_zone(page) == zl->zones[0]) {
-               zone_pcp(zl->zones[0],get_cpu())->interleave_hit++;
-               put_cpu();
-       }
+       if (page && page_zone(page) == zl->zones[0])
+               inc_zone_page_state(page, NUMA_INTERLEAVE_HIT);
        return page;
 }
 
@@ -1275,7 +1292,7 @@ struct page *alloc_pages_current(gfp_t gfp, unsigned order)
 
        if ((gfp & __GFP_WAIT) && !in_interrupt())
                cpuset_update_task_memory_state();
-       if (!pol || in_interrupt())
+       if (!pol || in_interrupt() || (gfp & __GFP_THISNODE))
                pol = &default_policy;
        if (pol->policy == MPOL_INTERLEAVE)
                return alloc_page_interleave(gfp, order, interleave_nodes(pol));
@@ -1634,7 +1651,7 @@ void mpol_rebind_policy(struct mempolicy *pol, const nodemask_t *newmask)
 
                nodes_clear(nodes);
                for (z = pol->v.zonelist->zones; *z; z++)
-                       node_set((*z)->zone_pgdat->node_id, nodes);
+                       node_set(zone_to_nid(*z), nodes);
                nodes_remap(tmp, nodes, *mpolmask, *newmask);
                nodes = tmp;
 
@@ -1817,7 +1834,7 @@ static inline void check_huge_range(struct vm_area_struct *vma,
 
 int show_numa_map(struct seq_file *m, void *v)
 {
-       struct task_struct *task = m->private;
+       struct proc_maps_private *priv = m->private;
        struct vm_area_struct *vma = v;
        struct numa_maps *md;
        struct file *file = vma->vm_file;
@@ -1833,7 +1850,7 @@ int show_numa_map(struct seq_file *m, void *v)
                return 0;
 
        mpol_to_str(buffer, sizeof(buffer),
-                       get_vma_policy(task, vma, vma->vm_start));
+                           get_vma_policy(priv->task, vma, vma->vm_start));
 
        seq_printf(m, "%08lx %s", vma->vm_start, buffer);
 
@@ -1887,7 +1904,7 @@ out:
        kfree(md);
 
        if (m->count < m->size)
-               m->version = (vma != get_gate_vma(task)) ? vma->vm_start : 0;
+               m->version = (vma != priv->tail_vma) ? vma->vm_start : 0;
        return 0;
 }