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-rw-r--r--mm/ksm.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/mm/ksm.c b/mm/ksm.c
index f7edac3..5575f86 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -184,11 +184,6 @@ static DEFINE_SPINLOCK(ksm_mmlist_lock);
sizeof(struct __struct), __alignof__(struct __struct),\
(__flags), NULL)
-static void __init ksm_init_max_kernel_pages(void)
-{
- ksm_max_kernel_pages = nr_free_buffer_pages() / 4;
-}
-
static int __init ksm_slab_init(void)
{
rmap_item_cache = KSM_KMEM_CACHE(rmap_item, 0);
@@ -1017,6 +1012,7 @@ static struct rmap_item *unstable_tree_search_insert(struct page *page,
struct rmap_item *tree_rmap_item;
int ret;
+ cond_resched();
tree_rmap_item = rb_entry(*new, struct rmap_item, node);
page2[0] = get_mergeable_page(tree_rmap_item);
if (!page2[0])
@@ -1673,7 +1669,7 @@ static int __init ksm_init(void)
struct task_struct *ksm_thread;
int err;
- ksm_init_max_kernel_pages();
+ ksm_max_kernel_pages = totalram_pages / 4;
err = ksm_slab_init();
if (err)
@@ -1697,6 +1693,9 @@ static int __init ksm_init(void)
kthread_stop(ksm_thread);
goto out_free2;
}
+#else
+ ksm_run = KSM_RUN_MERGE; /* no way for user to start it */
+
#endif /* CONFIG_SYSFS */
return 0;
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