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Diffstat (limited to 'mm')
-rw-r--r--mm/memory_hotplug.c2
-rw-r--r--mm/page-writeback.c6
2 files changed, 5 insertions, 3 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 9576ed920c0a..2053bb165a21 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -13,6 +13,7 @@
#include <linux/compiler.h>
#include <linux/module.h>
#include <linux/pagevec.h>
+#include <linux/writeback.h>
#include <linux/slab.h>
#include <linux/sysctl.h>
#include <linux/cpu.h>
@@ -192,6 +193,7 @@ int online_pages(unsigned long pfn, unsigned long nr_pages)
if (need_zonelists_rebuild)
build_all_zonelists();
vm_total_pages = nr_free_pagecache_pages();
+ writeback_set_ratelimit();
return 0;
}
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index efd2705e4986..488b7088557c 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -501,7 +501,7 @@ void laptop_sync_completion(void)
* will write six megabyte chunks, max.
*/
-static void set_ratelimit(void)
+void writeback_set_ratelimit(void)
{
ratelimit_pages = vm_total_pages / (num_online_cpus() * 32);
if (ratelimit_pages < 16)
@@ -513,7 +513,7 @@ static void set_ratelimit(void)
static int __cpuinit
ratelimit_handler(struct notifier_block *self, unsigned long u, void *v)
{
- set_ratelimit();
+ writeback_set_ratelimit();
return 0;
}
@@ -546,7 +546,7 @@ void __init page_writeback_init(void)
vm_dirty_ratio = 1;
}
mod_timer(&wb_timer, jiffies + dirty_writeback_interval);
- set_ratelimit();
+ writeback_set_ratelimit();
register_cpu_notifier(&ratelimit_nb);
}