Re: [PATCH] ksm: change default values to better fit into mainlinekernel

From: Andrew Morton
Date: Wed Sep 23 2009 - 16:38:02 EST


On Wed, 23 Sep 2009 23:05:47 +0300
Izik Eidus <ieidus@xxxxxxxxxx> wrote:

> +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);
> @@ -1667,6 +1673,8 @@ static int __init ksm_init(void)
> struct task_struct *ksm_thread;
> int err;
>
> + ksm_init_max_kernel_pages();

Was it really worth creating a new function for this?

--- a/mm/ksm.c~ksm-change-default-values-to-better-fit-into-mainline-kernel-fix
+++ a/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);
@@ -1673,7 +1668,7 @@ static int __init ksm_init(void)
struct task_struct *ksm_thread;
int err;

- ksm_init_max_kernel_pages();
+ ksm_max_kernel_pages = nr_free_buffer_pages() / 4;

err = ksm_slab_init();
if (err)
_

oh well, whatever.
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