Merge to Fedora kernel-2.6.7-1.441

[linux-2.6.git] / mm / page_alloc.c

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index e511c28..4824cc4 100644 (file)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -31,6 +31,8 @@
 #include <linux/topology.h>
 #include <linux/sysctl.h>
 #include <linux/cpu.h>
+#include <linux/vs_base.h>
+#include <linux/vs_limit.h>
 
 #include <asm/tlbflush.h>
 
@@ -736,53 +738,12 @@ got_pg:
 
 EXPORT_SYMBOL(__alloc_pages);
 
-#ifdef CONFIG_NUMA
-/* Early boot: Everything is done by one cpu, but the data structures will be
- * used by all cpus - spread them on all nodes.
- */
-static __init unsigned long get_boot_pages(unsigned int gfp_mask, unsigned int order)
-{
-static int nodenr;
-       int i = nodenr;
-       struct page *page;
-
-       for (;;) {
-               if (i > nodenr + numnodes)
-                       return 0;
-               if (node_present_pages(i%numnodes)) {
-                       struct zone **z;
-                       /* The node contains memory. Check that there is
-                        * memory in the intended zonelist.
-                        */
-                       z = NODE_DATA(i%numnodes)->node_zonelists[gfp_mask & GFP_ZONEMASK].zones;
-                       while (*z) {
-                               if ( (*z)->free_pages > (1UL<<order))
-                                       goto found_node;
-                               z++;
-                       }
-               }
-               i++;
-       }
-found_node:
-       nodenr = i+1;
-       page = alloc_pages_node(i%numnodes, gfp_mask, order);
-       if (!page)
-               return 0;
-       return (unsigned long) page_address(page);
-}
-#endif
-
 /*
  * Common helper functions.
  */
 fastcall unsigned long __get_free_pages(unsigned int gfp_mask, unsigned int order)
 {
        struct page * page;
-
-#ifdef CONFIG_NUMA
-       if (unlikely(system_state == SYSTEM_BOOTING))
-               return get_boot_pages(gfp_mask, order);
-#endif
        page = alloc_pages(gfp_mask, order);
        if (!page)
                return 0;
@@ -992,6 +953,23 @@ void get_full_page_state(struct page_state *ret)
        __get_page_state(ret, sizeof(*ret) / sizeof(unsigned long));
 }
 
+unsigned long __read_page_state(unsigned offset)
+{
+       unsigned long ret = 0;
+       int cpu;
+
+       for (cpu = 0; cpu < NR_CPUS; cpu++) {
+               unsigned long in;
+
+               if (!cpu_possible(cpu))
+                       continue;
+
+               in = (unsigned long)&per_cpu(page_states, cpu) + offset;
+               ret += *((unsigned long *)in);
+       }
+       return ret;
+}
+
 void get_zone_counts(unsigned long *active,
                unsigned long *inactive, unsigned long *free)
 {