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Diffstat (limited to 'mm/mempolicy.c')
-rw-r--r--mm/mempolicy.c36
1 files changed, 22 insertions, 14 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 5d20bf44062f..90193a2a915b 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -186,7 +186,7 @@ static struct zonelist *bind_zonelist(nodemask_t *nodes)
for_each_node_mask(nd, *nodes) {
struct zone *z = &NODE_DATA(nd)->node_zones[k];
if (z->present_pages > 0)
- zl->zones[num++] = z;
+ zoneref_set_zone(z, &zl->_zonerefs[num++]);
}
if (k == 0)
break;
@@ -196,7 +196,8 @@ static struct zonelist *bind_zonelist(nodemask_t *nodes)
kfree(zl);
return ERR_PTR(-EINVAL);
}
- zl->zones[num] = NULL;
+ zl->_zonerefs[num].zone = NULL;
+ zl->_zonerefs[num].zone_idx = 0;
return zl;
}
@@ -504,9 +505,11 @@ static void get_zonemask(struct mempolicy *p, nodemask_t *nodes)
nodes_clear(*nodes);
switch (p->policy) {
case MPOL_BIND:
- for (i = 0; p->v.zonelist->zones[i]; i++)
- node_set(zone_to_nid(p->v.zonelist->zones[i]),
- *nodes);
+ for (i = 0; p->v.zonelist->_zonerefs[i].zone; i++) {
+ struct zoneref *zref;
+ zref = &p->v.zonelist->_zonerefs[i];
+ node_set(zonelist_node_idx(zref), *nodes);
+ }
break;
case MPOL_DEFAULT:
break;
@@ -1212,12 +1215,13 @@ unsigned slab_node(struct mempolicy *policy)
case MPOL_INTERLEAVE:
return interleave_nodes(policy);
- case MPOL_BIND:
+ case MPOL_BIND: {
/*
* Follow bind policy behavior and start allocation at the
* first node.
*/
- return zone_to_nid(policy->v.zonelist->zones[0]);
+ return zonelist_node_idx(policy->v.zonelist->_zonerefs);
+ }
case MPOL_PREFERRED:
if (policy->v.preferred_node >= 0)
@@ -1323,7 +1327,7 @@ static struct page *alloc_page_interleave(gfp_t gfp, unsigned order,
zl = node_zonelist(nid, gfp);
page = __alloc_pages(gfp, order, zl);
- if (page && page_zone(page) == zl->zones[0])
+ if (page && page_zone(page) == zonelist_zone(&zl->_zonerefs[0]))
inc_zone_page_state(page, NUMA_INTERLEAVE_HIT);
return page;
}
@@ -1463,10 +1467,14 @@ int __mpol_equal(struct mempolicy *a, struct mempolicy *b)
return a->v.preferred_node == b->v.preferred_node;
case MPOL_BIND: {
int i;
- for (i = 0; a->v.zonelist->zones[i]; i++)
- if (a->v.zonelist->zones[i] != b->v.zonelist->zones[i])
+ for (i = 0; a->v.zonelist->_zonerefs[i].zone; i++) {
+ struct zone *za, *zb;
+ za = zonelist_zone(&a->v.zonelist->_zonerefs[i]);
+ zb = zonelist_zone(&b->v.zonelist->_zonerefs[i]);
+ if (za != zb)
return 0;
- return b->v.zonelist->zones[i] == NULL;
+ }
+ return b->v.zonelist->_zonerefs[i].zone == NULL;
}
default:
BUG();
@@ -1785,12 +1793,12 @@ static void mpol_rebind_policy(struct mempolicy *pol,
break;
case MPOL_BIND: {
nodemask_t nodes;
- struct zone **z;
+ struct zoneref *z;
struct zonelist *zonelist;
nodes_clear(nodes);
- for (z = pol->v.zonelist->zones; *z; z++)
- node_set(zone_to_nid(*z), nodes);
+ for (z = pol->v.zonelist->_zonerefs; z->zone; z++)
+ node_set(zonelist_node_idx(z), nodes);
nodes_remap(tmp, nodes, *mpolmask, *newmask);
nodes = tmp;