mm: clean up mm_counter

[deliverable/linux.git] / kernel / fork.c

diff --git a/kernel/fork.c b/kernel/fork.c
index f88bd984df35fc937a7ee0c2ab89ac091ce5141d..7616bcf107b96b97f7464a05986134e1c8b809b2 100644 (file)
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -86,6 +86,7 @@ int max_threads;              /* tunable limit on nr_threads */
 DEFINE_PER_CPU(unsigned long, process_counts) = 0;
 
 __cacheline_aligned DEFINE_RWLOCK(tasklist_lock);  /* outer */
+EXPORT_SYMBOL_GPL(tasklist_lock);
 
 int nr_processes(void)
 {
@@ -454,8 +455,7 @@ static struct mm_struct * mm_init(struct mm_struct * mm, struct task_struct *p)
                (current->mm->flags & MMF_INIT_MASK) : default_dump_filter;
        mm->core_state = NULL;
        mm->nr_ptes = 0;
-       set_mm_counter(mm, file_rss, 0);
-       set_mm_counter(mm, anon_rss, 0);
+       memset(&mm->rss_stat, 0, sizeof(mm->rss_stat));
        spin_lock_init(&mm->page_table_lock);
        mm->free_area_cache = TASK_UNMAPPED_BASE;
        mm->cached_hole_size = ~0UL;