Merge git://git.infradead.org/~dwmw2/iommu-2.6.32

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

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index c188ea6..6f75617 100644 (file)
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -38,6 +38,7 @@
 #define MIGRATE_UNMOVABLE     0
 #define MIGRATE_RECLAIMABLE   1
 #define MIGRATE_MOVABLE       2
+#define MIGRATE_PCPTYPES      3 /* the number of types on the pcp lists */
 #define MIGRATE_RESERVE       3
 #define MIGRATE_ISOLATE       4 /* can't allocate from here */
 #define MIGRATE_TYPES         5
@@ -169,7 +170,9 @@ struct per_cpu_pages {
        int count;              /* number of pages in the list */
        int high;               /* high watermark, emptying needed */
        int batch;              /* chunk size for buddy add/remove */
-       struct list_head list;  /* the list of pages */
+
+       /* Lists of pages, one per migrate type stored on the pcp-lists */
+       struct list_head lists[MIGRATE_PCPTYPES];
 };
 
 struct per_cpu_pageset {
@@ -752,21 +755,20 @@ static inline int is_dma(struct zone *zone)
 
 /* These two functions are used to setup the per zone pages min values */
 struct ctl_table;
-struct file;
-int min_free_kbytes_sysctl_handler(struct ctl_table *, int, struct file *, 
+int min_free_kbytes_sysctl_handler(struct ctl_table *, int,
                                        void __user *, size_t *, loff_t *);
 extern int sysctl_lowmem_reserve_ratio[MAX_NR_ZONES-1];
-int lowmem_reserve_ratio_sysctl_handler(struct ctl_table *, int, struct file *,
+int lowmem_reserve_ratio_sysctl_handler(struct ctl_table *, int,
                                        void __user *, size_t *, loff_t *);
-int percpu_pagelist_fraction_sysctl_handler(struct ctl_table *, int, struct file *,
+int percpu_pagelist_fraction_sysctl_handler(struct ctl_table *, int,
                                        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 *);
+                       void __user *, size_t *, loff_t *);
 int sysctl_min_slab_ratio_sysctl_handler(struct ctl_table *, int,
-                       struct file *, void __user *, size_t *, loff_t *);
+                       void __user *, size_t *, loff_t *);
 
 extern int numa_zonelist_order_handler(struct ctl_table *, int,
-                       struct file *, void __user *, size_t *, loff_t *);
+                       void __user *, size_t *, loff_t *);
 extern char numa_zonelist_order[];
 #define NUMA_ZONELIST_ORDER_LEN 16     /* string buffer size */