ksm: rmap_walk to remove_migation_ptes

[safe/jmp/linux-2.6] / mm / vmstat.c

diff --git a/mm/vmstat.c b/mm/vmstat.c
index 66f6130..6051fba 100644 (file)
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -509,22 +509,11 @@ static void pagetypeinfo_showblockcount_print(struct seq_file *m,
                        continue;
 
                page = pfn_to_page(pfn);
-#ifdef CONFIG_ARCH_FLATMEM_HAS_HOLES
-               /*
-                * Ordinarily, memory holes in flatmem still have a valid
-                * memmap for the PFN range. However, an architecture for
-                * embedded systems (e.g. ARM) can free up the memmap backing
-                * holes to save memory on the assumption the memmap is
-                * never used. The page_zone linkages are then broken even
-                * though pfn_valid() returns true. Skip the page if the
-                * linkages are broken. Even if this test passed, the impact
-                * is that the counters for the movable type are off but
-                * fragmentation monitoring is likely meaningless on small
-                * systems.
-                */
-               if (page_zone(page) != zone)
+
+               /* Watch for unexpected holes punched in the memmap */
+               if (!memmap_valid_within(pfn, page, zone))
                        continue;
-#endif
+
                mtype = get_pageblock_migratetype(page);
 
                if (mtype < MIGRATE_TYPES)
@@ -640,10 +629,8 @@ static const char * const vmstat_text[] = {
        "nr_active_anon",
        "nr_inactive_file",
        "nr_active_file",
-#ifdef CONFIG_UNEVICTABLE_LRU
        "nr_unevictable",
        "nr_mlock",
-#endif
        "nr_anon_pages",
        "nr_mapped",
        "nr_file_pages",
@@ -652,11 +639,14 @@ static const char * const vmstat_text[] = {
        "nr_slab_reclaimable",
        "nr_slab_unreclaimable",
        "nr_page_table_pages",
+       "nr_kernel_stack",
        "nr_unstable",
        "nr_bounce",
        "nr_vmscan_write",
        "nr_writeback_temp",
-
+       "nr_isolated_anon",
+       "nr_isolated_file",
+       "nr_shmem",
 #ifdef CONFIG_NUMA
        "numa_hit",
        "numa_miss",
@@ -686,10 +676,16 @@ static const char * const vmstat_text[] = {
        TEXTS_FOR_ZONES("pgscan_kswapd")
        TEXTS_FOR_ZONES("pgscan_direct")
 
+#ifdef CONFIG_NUMA
+       "zone_reclaim_failed",
+#endif
        "pginodesteal",
        "slabs_scanned",
        "kswapd_steal",
        "kswapd_inodesteal",
+       "kswapd_low_wmark_hit_quickly",
+       "kswapd_high_wmark_hit_quickly",
+       "kswapd_skip_congestion_wait",
        "pageoutrun",
        "allocstall",
 
@@ -698,7 +694,6 @@ static const char * const vmstat_text[] = {
        "htlb_buddy_alloc_success",
        "htlb_buddy_alloc_fail",
 #endif
-#ifdef CONFIG_UNEVICTABLE_LRU
        "unevictable_pgs_culled",
        "unevictable_pgs_scanned",
        "unevictable_pgs_rescued",
@@ -708,7 +703,6 @@ static const char * const vmstat_text[] = {
        "unevictable_pgs_stranded",
        "unevictable_pgs_mlockfreed",
 #endif
-#endif
 };
 
 static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat,
@@ -721,18 +715,14 @@ static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat,
                   "\n        min      %lu"
                   "\n        low      %lu"
                   "\n        high     %lu"
-                  "\n        scanned  %lu (aa: %lu ia: %lu af: %lu if: %lu)"
+                  "\n        scanned  %lu"
                   "\n        spanned  %lu"
                   "\n        present  %lu",
                   zone_page_state(zone, NR_FREE_PAGES),
-                  zone->pages_min,
-                  zone->pages_low,
-                  zone->pages_high,
+                  min_wmark_pages(zone),
+                  low_wmark_pages(zone),
+                  high_wmark_pages(zone),
                   zone->pages_scanned,
-                  zone->lru[LRU_ACTIVE_ANON].nr_scan,
-                  zone->lru[LRU_INACTIVE_ANON].nr_scan,
-                  zone->lru[LRU_ACTIVE_FILE].nr_scan,
-                  zone->lru[LRU_INACTIVE_FILE].nr_scan,
                   zone->spanned_pages,
                   zone->present_pages);
 
@@ -896,11 +886,10 @@ static void vmstat_update(struct work_struct *w)
 
 static void __cpuinit start_cpu_timer(int cpu)
 {
-       struct delayed_work *vmstat_work = &per_cpu(vmstat_work, cpu);
+       struct delayed_work *work = &per_cpu(vmstat_work, cpu);
 
-       INIT_DELAYED_WORK_DEFERRABLE(vmstat_work, vmstat_update);
-       schedule_delayed_work_on(cpu, vmstat_work,
-                                __round_jiffies_relative(HZ, cpu));
+       INIT_DELAYED_WORK_DEFERRABLE(work, vmstat_update);
+       schedule_delayed_work_on(cpu, work, __round_jiffies_relative(HZ, cpu));
 }
 
 /*