[PATCH 5/6] Filter based on a nodemask as well as a gfp_mask

From: Mel Gorman
Date: Fri Aug 17 2007 - 16:18:57 EST


The MPOL_BIND policy creates a zonelist that is used for allocations belonging
to that thread that can use the policy_zone. As the zonelist is already being
filtered based on a zone id, this patch adds a version of __alloc_pages()
that takes a nodemask for further filtering. This eliminates the need for
MPOL_BIND to create a custom zonelist. The practical upside of this is that
allocations using MPOL_BIND should now use nodes closer to the running CPU
first instead of using nodes in numeric order.

Signed-off-by: Mel Gorman <mel@xxxxxxxxx>
---

fs/buffer.c | 2
include/linux/cpuset.h | 4 -
include/linux/gfp.h | 4 +
include/linux/mempolicy.h | 3
include/linux/mmzone.h | 59 +++++++++++++---
kernel/cpuset.c | 16 +---
mm/mempolicy.c | 145 +++++++++++------------------------------
mm/page_alloc.c | 34 ++++++---
8 files changed, 128 insertions(+), 139 deletions(-)

diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.23-rc3-020_gfpskip/fs/buffer.c linux-2.6.23-rc3-030_filter_nodemask/fs/buffer.c
--- linux-2.6.23-rc3-020_gfpskip/fs/buffer.c 2007-08-17 16:36:04.000000000 +0100
+++ linux-2.6.23-rc3-030_filter_nodemask/fs/buffer.c 2007-08-17 16:56:36.000000000 +0100
@@ -355,7 +355,7 @@ static void free_more_memory(void)

for_each_online_node(nid) {
zones = first_zones_zonelist(node_zonelist(nid),
- gfp_zone(GFP_NOFS));
+ NULL, gfp_zone(GFP_NOFS));
if (*zones)
try_to_free_pages(node_zonelist(nid), 0, GFP_NOFS);
}
diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.23-rc3-020_gfpskip/include/linux/cpuset.h linux-2.6.23-rc3-030_filter_nodemask/include/linux/cpuset.h
--- linux-2.6.23-rc3-020_gfpskip/include/linux/cpuset.h 2007-08-13 05:25:24.000000000 +0100
+++ linux-2.6.23-rc3-030_filter_nodemask/include/linux/cpuset.h 2007-08-17 16:56:36.000000000 +0100
@@ -28,7 +28,7 @@ void cpuset_init_current_mems_allowed(vo
void cpuset_update_task_memory_state(void);
#define cpuset_nodes_subset_current_mems_allowed(nodes) \
nodes_subset((nodes), current->mems_allowed)
-int cpuset_zonelist_valid_mems_allowed(struct zonelist *zl);
+int cpuset_nodemask_valid_mems_allowed(nodemask_t *nodemask);

extern int __cpuset_zone_allowed_softwall(struct zone *z, gfp_t gfp_mask);
extern int __cpuset_zone_allowed_hardwall(struct zone *z, gfp_t gfp_mask);
@@ -98,7 +98,7 @@ static inline void cpuset_init_current_m
static inline void cpuset_update_task_memory_state(void) {}
#define cpuset_nodes_subset_current_mems_allowed(nodes) (1)

-static inline int cpuset_zonelist_valid_mems_allowed(struct zonelist *zl)
+static inline int cpuset_nodemask_valid_mems_allowed(nodemask_t *nodemask)
{
return 1;
}
diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.23-rc3-020_gfpskip/include/linux/gfp.h linux-2.6.23-rc3-030_filter_nodemask/include/linux/gfp.h
--- linux-2.6.23-rc3-020_gfpskip/include/linux/gfp.h 2007-08-17 16:35:55.000000000 +0100
+++ linux-2.6.23-rc3-030_filter_nodemask/include/linux/gfp.h 2007-08-17 16:56:36.000000000 +0100
@@ -141,6 +141,10 @@ static inline void arch_alloc_page(struc
extern struct page *
FASTCALL(__alloc_pages(gfp_t, unsigned int, struct zonelist *));

+extern struct page *
+FASTCALL(__alloc_pages_nodemask(gfp_t, unsigned int,
+ struct zonelist *, nodemask_t *nodemask));
+
static inline struct page *alloc_pages_node(int nid, gfp_t gfp_mask,
unsigned int order)
{
diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.23-rc3-020_gfpskip/include/linux/mempolicy.h linux-2.6.23-rc3-030_filter_nodemask/include/linux/mempolicy.h
--- linux-2.6.23-rc3-020_gfpskip/include/linux/mempolicy.h 2007-08-17 16:35:55.000000000 +0100
+++ linux-2.6.23-rc3-030_filter_nodemask/include/linux/mempolicy.h 2007-08-17 16:56:36.000000000 +0100
@@ -63,9 +63,8 @@ struct mempolicy {
atomic_t refcnt;
short policy; /* See MPOL_* above */
union {
- struct zonelist *zonelist; /* bind */
short preferred_node; /* preferred */
- nodemask_t nodes; /* interleave */
+ nodemask_t nodes; /* interleave/bind */
/* undefined for default */
} v;
nodemask_t cpuset_mems_allowed; /* mempolicy relative to these nodes */
diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.23-rc3-020_gfpskip/include/linux/mmzone.h linux-2.6.23-rc3-030_filter_nodemask/include/linux/mmzone.h
--- linux-2.6.23-rc3-020_gfpskip/include/linux/mmzone.h 2007-08-17 16:56:20.000000000 +0100
+++ linux-2.6.23-rc3-030_filter_nodemask/include/linux/mmzone.h 2007-08-17 17:31:05.000000000 +0100
@@ -696,6 +696,16 @@ static inline struct zonelist *node_zone
return &NODE_DATA(nid)->node_zonelist;
}

+static inline int zone_in_nodemask(unsigned long zone_addr,
+ nodemask_t *nodes)
+{
+#ifdef CONFIG_NUMA
+ return node_isset(zonelist_zone(zone_addr)->node, *nodes);
+#else
+ return 1;
+#endif /* CONFIG_NUMA */
+}
+
static inline unsigned long *zonelist_gfp_skip(struct zonelist *zonelist,
enum zone_type highest_zoneidx)
{
@@ -704,26 +714,57 @@ static inline unsigned long *zonelist_gf

/* Returns the first zone at or below highest_zoneidx in a zonelist */
static inline unsigned long *first_zones_zonelist(struct zonelist *zonelist,
+ nodemask_t *nodes,
enum zone_type highest_zoneidx)
{
- unsigned long *z;
- for (z = zonelist_gfp_skip(zonelist, highest_zoneidx);
- zonelist_zone_idx(*z) > highest_zoneidx;
- z++);
+ unsigned long *z = zonelist_gfp_skip(zonelist, highest_zoneidx);
+
+ /* Only filter based on the nodemask if it's set */
+ if (likely(nodes == NULL))
+ for (;zonelist_zone_idx(*z) > highest_zoneidx;
+ z++);
+ else
+ for (;zonelist_zone_idx(*z) > highest_zoneidx ||
+ !zone_in_nodemask(*z, nodes);
+ z++);
return z;
}

/* Returns the next zone at or below highest_zoneidx in a zonelist */
static inline unsigned long *next_zones_zonelist(unsigned long *z,
+ nodemask_t *nodes,
enum zone_type highest_zoneidx)
{
- for (++z;
- zonelist_zone_idx(*z) > highest_zoneidx;
- z++);
+ z++;
+
+ /* Only filter based on the nodemask if it's set */
+ if (likely(nodes == NULL))
+ for (;zonelist_zone_idx(*z) > highest_zoneidx;
+ z++);
+ else
+ for (;zonelist_zone_idx(*z) > highest_zoneidx ||
+ !zone_in_nodemask(*z, nodes);
+ z++);
return z;
}

/**
+ * for_each_zone_zonelist_nodemask - helper macro to iterate over valid zones in a zonelist at or below a given zone index and within a nodemask
+ * @zone - The current zone in the iterator
+ * @z - The current pointer within zonelist->zones being iterated
+ * @zlist - The zonelist being iterated
+ * @highidx - The zone index of the highest zone to return
+ * @nodemask - Nodemask allowed by the allocator
+ *
+ * This iterator iterates though all zones at or below a given zone index and
+ * within a given nodemask
+ */
+#define for_each_zone_zonelist_nodemask(zone, z, zlist, highidx, nodemask) \
+ for (z = first_zones_zonelist(zlist, nodemask, highidx), zone = zonelist_zone(*z); \
+ zone; \
+ z = next_zones_zonelist(z, nodemask, highidx), zone = zonelist_zone(*z))
+
+/**
* for_each_zone_zonelist - helper macro to iterate over valid zones in a zonelist at or below a given zone index
* @zone - The current zone in the iterator
* @z - The current pointer within zonelist->zones being iterated
@@ -733,9 +774,7 @@ static inline unsigned long *next_zones_
* This iterator iterates though all zones at or below a given zone index.
*/
#define for_each_zone_zonelist(zone, z, zlist, highidx) \
- for (z = first_zones_zonelist(zlist, highidx), zone = zonelist_zone(*z); \
- zone; \
- z = next_zones_zonelist(z, highidx), zone = zonelist_zone(*z))
+ for_each_zone_zonelist_nodemask(zone, z, zlist, highidx, NULL)

#ifdef CONFIG_SPARSEMEM
#include <asm/sparsemem.h>
diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.23-rc3-020_gfpskip/kernel/cpuset.c linux-2.6.23-rc3-030_filter_nodemask/kernel/cpuset.c
--- linux-2.6.23-rc3-020_gfpskip/kernel/cpuset.c 2007-08-17 16:36:04.000000000 +0100
+++ linux-2.6.23-rc3-030_filter_nodemask/kernel/cpuset.c 2007-08-17 16:56:36.000000000 +0100
@@ -2327,21 +2327,19 @@ nodemask_t cpuset_mems_allowed(struct ta
}

/**
- * cpuset_zonelist_valid_mems_allowed - check zonelist vs. curremt mems_allowed
- * @zl: the zonelist to be checked
+ * cpuset_nodemask_valid_mems_allowed - check nodemask vs. curremt mems_allowed
+ * @nodemask: the nodemask to be checked
*
- * Are any of the nodes on zonelist zl allowed in current->mems_allowed?
+ * Are any of the nodes in the nodemask allowed in current->mems_allowed?
*/
-int cpuset_zonelist_valid_mems_allowed(struct zonelist *zl)
+int cpuset_nodemask_valid_mems_allowed(nodemask_t *nodemask)
{
- int i;
-
- for (i = 0; zl->_zones[i]; i++) {
- int nid = zone_to_nid(zonelist_zone(zl->_zones[i]));
+ int nid;

+ for_each_node_mask(nid, *nodemask)
if (node_isset(nid, current->mems_allowed))
return 1;
- }
+
return 0;
}

diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.23-rc3-020_gfpskip/mm/mempolicy.c linux-2.6.23-rc3-030_filter_nodemask/mm/mempolicy.c
--- linux-2.6.23-rc3-020_gfpskip/mm/mempolicy.c 2007-08-17 16:55:31.000000000 +0100
+++ linux-2.6.23-rc3-030_filter_nodemask/mm/mempolicy.c 2007-08-17 17:00:07.000000000 +0100
@@ -131,43 +131,20 @@ static int mpol_check_policy(int mode, n
return nodes_subset(*nodes, node_online_map) ? 0 : -EINVAL;
}

-/* Generate a custom zonelist for the BIND policy. */
-static struct zonelist *bind_zonelist(nodemask_t *nodes)
+/* Check that the nodemask contains at least one populated zone */
+static int is_valid_nodemask(nodemask_t *nodemask)
{
- struct zonelist *zl;
- int num, max, nd;
- enum zone_type k;
+ int nd, k;

- max = 1 + MAX_NR_ZONES * nodes_weight(*nodes);
- max++; /* space for zlcache_ptr (see mmzone.h) */
- max += sizeof(unsigned short) * MAX_NR_ZONES; /* gfp_skip */
- zl = kmalloc(sizeof(struct zone *) * max, GFP_KERNEL);
- if (!zl)
- return ERR_PTR(-ENOMEM);
- zl->zlcache_ptr = NULL;
- memset(zl->gfp_skip, 0, sizeof(zl->gfp_skip));
- num = 0;
- /* First put in the highest zones from all nodes, then all the next
- 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. */
+ /* Check that there is something useful in this mask */
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++] = encode_zone_idx(z);
- }
- if (k == 0)
- break;
- k--;
- }
- if (num == 0) {
- kfree(zl);
- return ERR_PTR(-EINVAL);
+ for_each_node_mask(nd, *nodemask) {
+ struct zone *z = &NODE_DATA(nd)->node_zones[k];
+ if (z->present_pages > 0)
+ return 1;
}
- zl->_zones[num] = 0;
- return zl;
+
+ return 0;
}

/* Create a new policy */
@@ -198,12 +175,11 @@ static struct mempolicy *mpol_new(int mo
policy->v.preferred_node = -1;
break;
case MPOL_BIND:
- policy->v.zonelist = bind_zonelist(nodes);
- if (IS_ERR(policy->v.zonelist)) {
- void *error_code = policy->v.zonelist;
+ if (!is_valid_nodemask(nodes)) {
kmem_cache_free(policy_cache, policy);
- return error_code;
+ return ERR_PTR(-EINVAL);
}
+ policy->v.nodes = *nodes;
break;
}
policy->policy = mode;
@@ -481,19 +457,13 @@ long do_set_mempolicy(int mode, nodemask
/* Fill a zone bitmap for a policy */
static void get_zonemask(struct mempolicy *p, nodemask_t *nodes)
{
- int i;

nodes_clear(*nodes);
switch (p->policy) {
- case MPOL_BIND:
- for (i = 0; p->v.zonelist->_zones[i]; i++) {
- struct zone *zone;
- zone = zonelist_zone(p->v.zonelist->_zones[i]);
- node_set(zone_to_nid(zone), *nodes);
- }
- break;
case MPOL_DEFAULT:
break;
+ case MPOL_BIND:
+ /* Fall through */
case MPOL_INTERLEAVE:
*nodes = p->v.nodes;
break;
@@ -1094,6 +1064,17 @@ static struct mempolicy * get_vma_policy
return pol;
}

+/* Return a nodemask represnting a mempolicy */
+static nodemask_t *nodemask_policy(gfp_t gfp, struct mempolicy *policy)
+{
+ /* Lower zones don't get a nodemask applied for MPOL_BIND */
+ if (policy->policy == MPOL_BIND &&
+ gfp_zone(gfp) >= policy_zone &&
+ cpuset_nodemask_valid_mems_allowed(&policy->v.nodes))
+ return &policy->v.nodes;
+
+ return NULL;
+}
/* Return a zonelist representing a mempolicy */
static struct zonelist *zonelist_policy(gfp_t gfp, struct mempolicy *policy)
{
@@ -1106,11 +1087,6 @@ static struct zonelist *zonelist_policy(
nd = numa_node_id();
break;
case MPOL_BIND:
- /* Lower zones don't get a policy applied */
- /* Careful: current->mems_allowed might have moved */
- if (gfp_zone(gfp) >= policy_zone)
- if (cpuset_zonelist_valid_mems_allowed(policy->v.zonelist))
- return policy->v.zonelist;
/*FALL THROUGH*/
case MPOL_INTERLEAVE: /* should not happen */
case MPOL_DEFAULT:
@@ -1149,12 +1125,19 @@ unsigned slab_node(struct mempolicy *pol
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(zonelist_zone(policy->v.zonelist->_zones[0]));
+ struct zonelist *zonelist;
+ unsigned long *z;
+ enum zone_type highest_zoneidx = gfp_zone(GFP_KERNEL);
+ zonelist = &NODE_DATA(numa_node_id())->node_zonelist;
+ z = first_zones_zonelist(zonelist, &policy->v.nodes,
+ highest_zoneidx);
+ return zone_to_nid(zonelist_zone(*z));
+ }

case MPOL_PREFERRED:
if (policy->v.preferred_node >= 0)
@@ -1272,7 +1255,8 @@ alloc_page_vma(gfp_t gfp, struct vm_area
nid = interleave_nid(pol, vma, addr, PAGE_SHIFT);
return alloc_page_interleave(gfp, 0, nid);
}
- return __alloc_pages(gfp, 0, zonelist_policy(gfp, pol));
+ return __alloc_pages_nodemask(gfp, 0,
+ zonelist_policy(gfp, pol), nodemask_policy(gfp, pol));
}

/**
@@ -1330,14 +1314,6 @@ struct mempolicy *__mpol_copy(struct mem
}
*new = *old;
atomic_set(&new->refcnt, 1);
- if (new->policy == MPOL_BIND) {
- int sz = ksize(old->v.zonelist);
- new->v.zonelist = kmemdup(old->v.zonelist, sz, GFP_KERNEL);
- if (!new->v.zonelist) {
- kmem_cache_free(policy_cache, new);
- return ERR_PTR(-ENOMEM);
- }
- }
return new;
}

@@ -1351,21 +1327,12 @@ int __mpol_equal(struct mempolicy *a, st
switch (a->policy) {
case MPOL_DEFAULT:
return 1;
+ case MPOL_BIND:
+ /* Fall through */
case MPOL_INTERLEAVE:
return nodes_equal(a->v.nodes, b->v.nodes);
case MPOL_PREFERRED:
return a->v.preferred_node == b->v.preferred_node;
- case MPOL_BIND: {
- int i;
- for (i = 0; a->v.zonelist->_zones[i]; i++) {
- struct zone *za, *zb;
- za = zonelist_zone(a->v.zonelist->_zones[i]);
- zb = zonelist_zone(b->v.zonelist->_zones[i]);
- if (za != zb)
- return 0;
- }
- return b->v.zonelist->_zones[i] == 0;
- }
default:
BUG();
return 0;
@@ -1377,8 +1344,6 @@ void __mpol_free(struct mempolicy *p)
{
if (!atomic_dec_and_test(&p->refcnt))
return;
- if (p->policy == MPOL_BIND)
- kfree(p->v.zonelist);
p->policy = MPOL_DEFAULT;
kmem_cache_free(policy_cache, p);
}
@@ -1668,6 +1633,8 @@ void mpol_rebind_policy(struct mempolicy
switch (pol->policy) {
case MPOL_DEFAULT:
break;
+ case MPOL_BIND:
+ /* Fall through */
case MPOL_INTERLEAVE:
nodes_remap(tmp, pol->v.nodes, *mpolmask, *newmask);
pol->v.nodes = tmp;
@@ -1680,32 +1647,6 @@ void mpol_rebind_policy(struct mempolicy
*mpolmask, *newmask);
*mpolmask = *newmask;
break;
- case MPOL_BIND: {
- nodemask_t nodes;
- unsigned long *z;
- struct zonelist *zonelist;
-
- nodes_clear(nodes);
- for (z = pol->v.zonelist->_zones; *z; z++)
- node_set(zone_to_nid(zonelist_zone(*z)), nodes);
- nodes_remap(tmp, nodes, *mpolmask, *newmask);
- nodes = tmp;
-
- zonelist = bind_zonelist(&nodes);
-
- /* If no mem, then zonelist is NULL and we keep old zonelist.
- * If that old zonelist has no remaining mems_allowed nodes,
- * then zonelist_policy() will "FALL THROUGH" to MPOL_DEFAULT.
- */
-
- if (!IS_ERR(zonelist)) {
- /* Good - got mem - substitute new zonelist */
- kfree(pol->v.zonelist);
- pol->v.zonelist = zonelist;
- }
- *mpolmask = *newmask;
- break;
- }
default:
BUG();
break;
@@ -1768,9 +1709,7 @@ static inline int mpol_to_str(char *buff
break;

case MPOL_BIND:
- get_zonemask(pol, &nodes);
- break;
-
+ /* Fall through */
case MPOL_INTERLEAVE:
nodes = pol->v.nodes;
break;
diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.23-rc3-020_gfpskip/mm/page_alloc.c linux-2.6.23-rc3-030_filter_nodemask/mm/page_alloc.c
--- linux-2.6.23-rc3-020_gfpskip/mm/page_alloc.c 2007-08-17 16:55:31.000000000 +0100
+++ linux-2.6.23-rc3-030_filter_nodemask/mm/page_alloc.c 2007-08-17 17:00:27.000000000 +0100
@@ -1147,7 +1147,7 @@ static void zlc_mark_zone_full(struct zo
* a page.
*/
static struct page *
-get_page_from_freelist(gfp_t gfp_mask, unsigned int order,
+get_page_from_freelist(gfp_t gfp_mask, nodemask_t *nodemask, unsigned int order,
struct zonelist *zonelist, int high_zoneidx, int alloc_flags)
{
unsigned long *z;
@@ -1159,7 +1159,7 @@ get_page_from_freelist(gfp_t gfp_mask, u
int zlc_active = 0; /* set if using zonelist_cache */
int did_zlc_setup = 0; /* just call zlc_setup() one time */

- z = first_zones_zonelist(zonelist, high_zoneidx);
+ z = first_zones_zonelist(zonelist, nodemask, high_zoneidx);
classzone = zonelist_zone(*z);
classzone_idx = zonelist_zone_idx(*z);

@@ -1168,7 +1168,8 @@ zonelist_scan:
* Scan zonelist, looking for a zone with enough free.
* See also cpuset_zone_allowed() comment in kernel/cpuset.c.
*/
- for_each_zone_zonelist(zone, z, zonelist, high_zoneidx) {
+ for_each_zone_zonelist_nodemask(zone, z, zonelist,
+ high_zoneidx, nodemask) {
if (NUMA_BUILD && zlc_active &&
!zlc_zone_worth_trying(zonelist, z, allowednodes))
continue;
@@ -1222,8 +1223,8 @@ try_next_zone:
* This is the 'heart' of the zoned buddy allocator.
*/
struct page * fastcall
-__alloc_pages(gfp_t gfp_mask, unsigned int order,
- struct zonelist *zonelist)
+__alloc_pages_nodemask(gfp_t gfp_mask, unsigned int order,
+ struct zonelist *zonelist, nodemask_t *nodemask)
{
const gfp_t wait = gfp_mask & __GFP_WAIT;
enum zone_type high_zoneidx = gfp_zone(gfp_mask);
@@ -1248,7 +1249,7 @@ restart:
return NULL;
}

- page = get_page_from_freelist(gfp_mask|__GFP_HARDWALL, order,
+ page = get_page_from_freelist(gfp_mask|__GFP_HARDWALL, nodemask, order,
zonelist, high_zoneidx, ALLOC_WMARK_LOW|ALLOC_CPUSET);
if (page)
goto got_pg;
@@ -1293,7 +1294,7 @@ restart:
* Ignore cpuset if GFP_ATOMIC (!wait) rather than fail alloc.
* See also cpuset_zone_allowed() comment in kernel/cpuset.c.
*/
- page = get_page_from_freelist(gfp_mask, order, zonelist,
+ page = get_page_from_freelist(gfp_mask, nodemask, order, zonelist,
high_zoneidx, alloc_flags);
if (page)
goto got_pg;
@@ -1306,7 +1307,7 @@ rebalance:
if (!(gfp_mask & __GFP_NOMEMALLOC)) {
nofail_alloc:
/* go through the zonelist yet again, ignoring mins */
- page = get_page_from_freelist(gfp_mask, order,
+ page = get_page_from_freelist(gfp_mask, nodemask, order,
zonelist, high_zoneidx, ALLOC_NO_WATERMARKS);
if (page)
goto got_pg;
@@ -1338,7 +1339,7 @@ nofail_alloc:
cond_resched();

if (likely(did_some_progress)) {
- page = get_page_from_freelist(gfp_mask, order,
+ page = get_page_from_freelist(gfp_mask, nodemask, order,
zonelist, high_zoneidx, alloc_flags);
if (page)
goto got_pg;
@@ -1349,8 +1350,9 @@ nofail_alloc:
* a parallel oom killing, we must fail if we're still
* under heavy pressure.
*/
- page = get_page_from_freelist(gfp_mask|__GFP_HARDWALL, order,
- zonelist, high_zoneidx, ALLOC_WMARK_HIGH|ALLOC_CPUSET);
+ page = get_page_from_freelist(gfp_mask|__GFP_HARDWALL, nodemask,
+ order, zonelist, high_zoneidx,
+ ALLOC_WMARK_HIGH|ALLOC_CPUSET);
if (page)
goto got_pg;

@@ -1394,6 +1396,14 @@ got_pg:
return page;
}

+struct page * fastcall
+__alloc_pages(gfp_t gfp_mask, unsigned int order,
+ struct zonelist *zonelist)
+{
+ return __alloc_pages_nodemask(gfp_mask, order, zonelist, NULL);
+}
+
+
EXPORT_SYMBOL(__alloc_pages);

/*
@@ -2055,7 +2065,7 @@ static void build_zonelist_gfpskip(pg_da

for (target = 0; target < MAX_NR_ZONES; target++) {
unsigned long *z;
- z = first_zones_zonelist(zl, target);
+ z = first_zones_zonelist(zl, NULL, target);
zl->gfp_skip[target] = z - zl->_zones;
}
}
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/