[PATCH] add page_state info to show_mem

This helps a lot when debugging out of memory stuff - useful especially to
see if all the memory is sucked into slab, etc.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/arch/i386/mm/pgtable.c b/arch/i386/mm/pgtable.c
index 80c84cd..270c59f 100644 (file)
--- a/arch/i386/mm/pgtable.c
+++ b/arch/i386/mm/pgtable.c
@@ -30,6 +30,7 @@ void show_mem(void)
        struct page *page;
        pg_data_t *pgdat;
        unsigned long i;
        struct page *page;
        pg_data_t *pgdat;
        unsigned long i;

+       struct page_state ps;

 
        printk("Mem-info:\n");
        show_free_areas();
 
        printk("Mem-info:\n");
        show_free_areas();


@@ -53,6 +54,13 @@ void show_mem(void)
        printk("%d reserved pages\n",reserved);
        printk("%d pages shared\n",shared);
        printk("%d pages swap cached\n",cached);
        printk("%d reserved pages\n",reserved);
        printk("%d pages shared\n",shared);
        printk("%d pages swap cached\n",cached);

+
+       get_page_state(&ps);
+       printk("%lu pages dirty\n", ps.nr_dirty);
+       printk("%lu pages writeback\n", ps.nr_writeback);
+       printk("%lu pages mapped\n", ps.nr_mapped);
+       printk("%lu pages slab\n", ps.nr_slab);
+       printk("%lu pages pagetables\n", ps.nr_page_table_pages);

 }
 
 /*
 }
 
 /*