Merge branch 'mpi-master' into wip-k-fmlpwip-k-fmlp

Conflicts:
	litmus/sched_cedf.c

1 files changed, 32 insertions, 17 deletions

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 3984c4eb41fd..9f7c3ebcbbad 100644
--- 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 };
 
 /*
@@ -270,11 +273,6 @@ struct zone_reclaim_stat {
          */
         unsigned long           recent_rotated[2];
         unsigned long           recent_scanned[2];
-
-        /*
-         * accumulated for batching
-         */
-        unsigned long           nr_saved_scan[NR_LRU_LISTS];
 };
 
 struct zone {
@@ -421,6 +419,9 @@ 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 +439,11 @@ 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 +454,6 @@ 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
@@ -467,7 +467,7 @@ unsigned long zone_nr_free_pages(struct zone *zone);
 #ifdef CONFIG_NUMA
 
 /*
- * The NUMA zonelists are doubled becausse we need zonelists that restrict the
+ * The NUMA zonelists are doubled because we need zonelists that restrict the
  * allocations to a single node for GFP_THISNODE.
  *
  * [0]  : Zonelist with fallback
@@ -635,6 +635,7 @@ 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)
@@ -646,12 +647,21 @@ typedef struct pglist_data {
 #endif
 #define nid_page_nr(nid, pagenr)        pgdat_page_nr(NODE_DATA(nid),(pagenr))
 
+#define node_start_pfn(nid)     (NODE_DATA(nid)->node_start_pfn)
+
+#define node_end_pfn(nid) ({\
+        pg_data_t *__pgdat = NODE_DATA(nid);\
+        __pgdat->node_start_pfn + __pgdat->node_spanned_pages;\
+})
+
 #include <linux/memory_hotplug.h>
 
 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,
@@ -920,9 +930,6 @@ static inline unsigned long early_pfn_to_nid(unsigned long pfn)
 #define pfn_to_nid(pfn)         (0)
 #endif
 
-#define pfn_to_section_nr(pfn) ((pfn) >> PFN_SECTION_SHIFT)
-#define section_nr_to_pfn(sec) ((sec) << PFN_SECTION_SHIFT)
-
 #ifdef CONFIG_SPARSEMEM
 
 /*
@@ -948,6 +955,12 @@ static inline unsigned long early_pfn_to_nid(unsigned long pfn)
 #error Allocator MAX_ORDER exceeds SECTION_SIZE
 #endif
 
+#define pfn_to_section_nr(pfn) ((pfn) >> PFN_SECTION_SHIFT)
+#define section_nr_to_pfn(sec) ((sec) << PFN_SECTION_SHIFT)
+
+#define SECTION_ALIGN_UP(pfn)   (((pfn) + PAGES_PER_SECTION - 1) & PAGE_SECTION_MASK)
+#define SECTION_ALIGN_DOWN(pfn) ((pfn) & PAGE_SECTION_MASK)
+
 struct page;
 struct page_cgroup;
 struct mem_section {
@@ -1045,12 +1058,14 @@ static inline struct mem_section *__pfn_to_section(unsigned long pfn)
         return __nr_to_section(pfn_to_section_nr(pfn));
 }
 
+#ifndef CONFIG_HAVE_ARCH_PFN_VALID
 static inline int pfn_valid(unsigned long pfn)
 {
         if (pfn_to_section_nr(pfn) >= NR_MEM_SECTIONS)
                 return 0;
         return valid_section(__nr_to_section(pfn_to_section_nr(pfn)));
 }
+#endif
 
 static inline int pfn_present(unsigned long pfn)
 {