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authorAndi Kleen <ak@linux.intel.com>2011-03-04 17:36:29 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-04 17:53:39 -0800
commit2f5f9486f8c12e3aa40fe3775a18cb14efc5cea2 (patch)
tree362c21544db1bc65ffb65abf9f2b41b63621a124
parentb8bc1dd39722f7c306435d0682e9bf81abf52105 (diff)
downloadlinux-2.6.38-lt-ux500-2f5f9486f8c12e3aa40fe3775a18cb14efc5cea2.tar.gz
mm: change alloc_pages_vma to pass down the policy node for local policy
Currently alloc_pages_vma() always uses the local node as policy node for the LOCAL policy. Pass this node down as an argument instead. No behaviour change from this patch, but will be needed for followons. Acked-by: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--include/linux/gfp.h9
-rw-r--r--mm/huge_memory.c2
-rw-r--r--mm/mempolicy.c11
3 files changed, 11 insertions, 11 deletions
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 0b84c61607e..37b8af5db09 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -332,16 +332,17 @@ alloc_pages(gfp_t gfp_mask, unsigned int order)
return alloc_pages_current(gfp_mask, order);
}
extern struct page *alloc_pages_vma(gfp_t gfp_mask, int order,
- struct vm_area_struct *vma, unsigned long addr);
+ struct vm_area_struct *vma, unsigned long addr,
+ int node);
#else
#define alloc_pages(gfp_mask, order) \
alloc_pages_node(numa_node_id(), gfp_mask, order)
-#define alloc_pages_vma(gfp_mask, order, vma, addr) \
+#define alloc_pages_vma(gfp_mask, order, vma, addr, node) \
alloc_pages(gfp_mask, order)
#endif
#define alloc_page(gfp_mask) alloc_pages(gfp_mask, 0)
-#define alloc_page_vma(gfp_mask, vma, addr) \
- alloc_pages_vma(gfp_mask, 0, vma, addr)
+#define alloc_page_vma(gfp_mask, vma, addr) \
+ alloc_pages_vma(gfp_mask, 0, vma, addr, numa_node_id())
extern unsigned long __get_free_pages(gfp_t gfp_mask, unsigned int order);
extern unsigned long get_zeroed_page(gfp_t gfp_mask);
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 3e29781ee76..c7c2cd92559 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -653,7 +653,7 @@ static inline struct page *alloc_hugepage_vma(int defrag,
unsigned long haddr)
{
return alloc_pages_vma(alloc_hugepage_gfpmask(defrag),
- HPAGE_PMD_ORDER, vma, haddr);
+ HPAGE_PMD_ORDER, vma, haddr, numa_node_id());
}
#ifndef CONFIG_NUMA
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 49355a970be..25a5a914661 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -1524,10 +1524,9 @@ static nodemask_t *policy_nodemask(gfp_t gfp, struct mempolicy *policy)
}
/* Return a zonelist indicated by gfp for node representing a mempolicy */
-static struct zonelist *policy_zonelist(gfp_t gfp, struct mempolicy *policy)
+static struct zonelist *policy_zonelist(gfp_t gfp, struct mempolicy *policy,
+ int nd)
{
- int nd = numa_node_id();
-
switch (policy->mode) {
case MPOL_PREFERRED:
if (!(policy->flags & MPOL_F_LOCAL))
@@ -1679,7 +1678,7 @@ struct zonelist *huge_zonelist(struct vm_area_struct *vma, unsigned long addr,
zl = node_zonelist(interleave_nid(*mpol, vma, addr,
huge_page_shift(hstate_vma(vma))), gfp_flags);
} else {
- zl = policy_zonelist(gfp_flags, *mpol);
+ zl = policy_zonelist(gfp_flags, *mpol, numa_node_id());
if ((*mpol)->mode == MPOL_BIND)
*nodemask = &(*mpol)->v.nodes;
}
@@ -1820,7 +1819,7 @@ static struct page *alloc_page_interleave(gfp_t gfp, unsigned order,
*/
struct page *
alloc_pages_vma(gfp_t gfp, int order, struct vm_area_struct *vma,
- unsigned long addr)
+ unsigned long addr, int node)
{
struct mempolicy *pol = get_vma_policy(current, vma, addr);
struct zonelist *zl;
@@ -1836,7 +1835,7 @@ alloc_pages_vma(gfp_t gfp, int order, struct vm_area_struct *vma,
put_mems_allowed();
return page;
}
- zl = policy_zonelist(gfp, pol);
+ zl = policy_zonelist(gfp, pol, node);
if (unlikely(mpol_needs_cond_ref(pol))) {
/*
* slow path: ref counted shared policy