Merge branch 'master' into tk71

[mv-sheeva.git] / include / linux / mmzone.h

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 3984c4eb41fdc9c85759dbffe308df5a806391f4..02ecb0189b1d9d1fcf0fff2900178045b40cedff 100644 (file)
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -104,6 +104,8 @@ enum zone_stat_item {
        NR_ISOLATED_ANON,       /* Temporary isolated pages from anon lru */
        NR_ISOLATED_FILE,       /* Temporary isolated pages from file lru */
        NR_SHMEM,               /* shmem pages (included tmpfs/GEM pages) */
+       NR_DIRTIED,             /* page dirtyings since bootup */
+       NR_WRITTEN,             /* page writings since bootup */
 #ifdef CONFIG_NUMA
        NUMA_HIT,               /* allocated in intended node */
        NUMA_MISS,              /* allocated in non intended node */
@@ -112,6 +114,7 @@ enum zone_stat_item {
        NUMA_LOCAL,             /* allocation from local node */
        NUMA_OTHER,             /* allocation from other node */
 #endif
+       NR_ANON_TRANSPARENT_HUGEPAGES,
        NR_VM_ZONE_STAT_ITEMS };
 
 /*
@@ -421,6 +424,9 @@ struct zone {
 typedef enum {
        ZONE_RECLAIM_LOCKED,            /* prevents concurrent reclaim */
        ZONE_OOM_LOCKED,                /* zone is in OOM killer zonelist */
+       ZONE_CONGESTED,                 /* zone has many dirty pages backed by
+                                        * a congested BDI
+                                        */
 } zone_flags_t;
 
 static inline void zone_set_flag(struct zone *zone, zone_flags_t flag)
@@ -438,6 +444,11 @@ static inline void zone_clear_flag(struct zone *zone, zone_flags_t flag)
        clear_bit(flag, &zone->flags);
 }
 
+static inline int zone_is_reclaim_congested(const struct zone *zone)
+{
+       return test_bit(ZONE_CONGESTED, &zone->flags);
+}
+
 static inline int zone_is_reclaim_locked(const struct zone *zone)
 {
        return test_bit(ZONE_RECLAIM_LOCKED, &zone->flags);
@@ -448,12 +459,6 @@ static inline int zone_is_oom_locked(const struct zone *zone)
        return test_bit(ZONE_OOM_LOCKED, &zone->flags);
 }
 
-#ifdef CONFIG_SMP
-unsigned long zone_nr_free_pages(struct zone *zone);
-#else
-#define zone_nr_free_pages(zone) zone_page_state(zone, NR_FREE_PAGES)
-#endif /* CONFIG_SMP */
-
 /*
  * The "priority" of VM scanning is how much of the queues we will scan in one
  * go. A value of 12 for DEF_PRIORITY implies that we will scan 1/4096th of the
@@ -635,6 +640,7 @@ typedef struct pglist_data {
        wait_queue_head_t kswapd_wait;
        struct task_struct *kswapd;
        int kswapd_max_order;
+       enum zone_type classzone_idx;
 } pg_data_t;
 
 #define node_present_pages(nid)        (NODE_DATA(nid)->node_present_pages)
@@ -650,8 +656,10 @@ typedef struct pglist_data {
 
 extern struct mutex zonelists_mutex;
 void build_all_zonelists(void *data);
-void wakeup_kswapd(struct zone *zone, int order);
-int zone_watermark_ok(struct zone *z, int order, unsigned long mark,
+void wakeup_kswapd(struct zone *zone, int order, enum zone_type classzone_idx);
+bool zone_watermark_ok(struct zone *z, int order, unsigned long mark,
+               int classzone_idx, int alloc_flags);
+bool zone_watermark_ok_safe(struct zone *z, int order, unsigned long mark,
                int classzone_idx, int alloc_flags);
 enum memmap_context {
        MEMMAP_EARLY,