diff options
| -rw-r--r-- | include/linux/writeback.h | 1 | ||||
| -rw-r--r-- | mm/memory_hotplug.c | 2 | ||||
| -rw-r--r-- | mm/page-writeback.c | 6 |
3 files changed, 6 insertions, 3 deletions
diff --git a/include/linux/writeback.h b/include/linux/writeback.h index 56a23a0e7f2e..9d4074ecd0cd 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -117,6 +117,7 @@ int sync_page_range(struct inode *inode, struct address_space *mapping, int sync_page_range_nolock(struct inode *inode, struct address_space *mapping, loff_t pos, loff_t count); void set_page_dirty_balance(struct page *page); +void writeback_set_ratelimit(void); /* pdflush.c */ extern int nr_pdflush_threads; /* Global so it can be exported to sysctl 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); } |