[PATCH] Add SMP support on x86_64 to reservation framework

[powerpc.git] / include / linux / mmzone.h

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 27e748e..f45163c 100644 (file)
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -77,6 +77,7 @@ struct per_cpu_pages {
 struct per_cpu_pageset {
        struct per_cpu_pages pcp[2];    /* 0: hot.  1: cold */
 #ifdef CONFIG_SMP
+       s8 stat_threshold;
        s8 vm_stat_diff[NR_VM_ZONE_STAT_ITEMS];
 #endif
 } ____cacheline_aligned_in_smp;
@@ -150,6 +151,10 @@ struct zone {
        unsigned long           lowmem_reserve[MAX_NR_ZONES];
 
 #ifdef CONFIG_NUMA
+       /*
+        * zone reclaim becomes active if more unmapped pages exist.
+        */
+       unsigned long           min_unmapped_ratio;
        struct per_cpu_pageset  *pageset[NR_CPUS];
 #else
        struct per_cpu_pageset  pageset[NR_CPUS];
@@ -414,6 +419,8 @@ int lowmem_reserve_ratio_sysctl_handler(struct ctl_table *, int, struct file *,
                                        void __user *, size_t *, loff_t *);
 int percpu_pagelist_fraction_sysctl_handler(struct ctl_table *, int, struct file *,
                                        void __user *, size_t *, loff_t *);
+int sysctl_min_unmapped_ratio_sysctl_handler(struct ctl_table *, int,
+                       struct file *, void __user *, size_t *, loff_t *);
 
 #include <linux/topology.h>
 /* Returns the number of the current Node. */