diff options
-rw-r--r-- | arch/ia64/mm/init.c | 17 | ||||
-rw-r--r-- | arch/powerpc/mm/mem.c | 17 | ||||
-rw-r--r-- | arch/s390/mm/init.c | 11 | ||||
-rw-r--r-- | mm/memory_hotplug.c | 12 |
4 files changed, 11 insertions, 46 deletions
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index f482a9098e3..054bcd9439a 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -700,23 +700,6 @@ int arch_add_memory(int nid, u64 start, u64 size) return ret; } -#ifdef CONFIG_MEMORY_HOTREMOVE -int remove_memory(u64 start, u64 size) -{ - unsigned long start_pfn, end_pfn; - unsigned long timeout = 120 * HZ; - int ret; - start_pfn = start >> PAGE_SHIFT; - end_pfn = start_pfn + (size >> PAGE_SHIFT); - ret = offline_pages(start_pfn, end_pfn, timeout); - if (ret) - goto out; - /* we can free mem_map at this point */ -out: - return ret; -} -EXPORT_SYMBOL_GPL(remove_memory); -#endif /* CONFIG_MEMORY_HOTREMOVE */ #endif /* diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 98d7bf99533..b9e1a1da6e5 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -134,23 +134,6 @@ int arch_add_memory(int nid, u64 start, u64 size) return __add_pages(zone, start_pfn, nr_pages); } - -#ifdef CONFIG_MEMORY_HOTREMOVE -int remove_memory(u64 start, u64 size) -{ - unsigned long start_pfn, end_pfn; - int ret; - - start_pfn = start >> PAGE_SHIFT; - end_pfn = start_pfn + (size >> PAGE_SHIFT); - ret = offline_pages(start_pfn, end_pfn, 120 * HZ); - if (ret) - goto out; - /* Arch-specific calls go here - next patch */ -out: - return ret; -} -#endif /* CONFIG_MEMORY_HOTREMOVE */ #endif /* CONFIG_MEMORY_HOTPLUG */ /* diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c index 1169130a97e..158b0d6d704 100644 --- a/arch/s390/mm/init.c +++ b/arch/s390/mm/init.c @@ -189,14 +189,3 @@ int arch_add_memory(int nid, u64 start, u64 size) return rc; } #endif /* CONFIG_MEMORY_HOTPLUG */ - -#ifdef CONFIG_MEMORY_HOTREMOVE -int remove_memory(u64 start, u64 size) -{ - unsigned long start_pfn, end_pfn; - - start_pfn = PFN_DOWN(start); - end_pfn = start_pfn + PFN_DOWN(size); - return offline_pages(start_pfn, end_pfn, 120 * HZ); -} -#endif /* CONFIG_MEMORY_HOTREMOVE */ diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 89fee2dcb03..c299d083d8e 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -26,6 +26,7 @@ #include <linux/delay.h> #include <linux/migrate.h> #include <linux/page-isolation.h> +#include <linux/pfn.h> #include <asm/tlbflush.h> @@ -849,10 +850,19 @@ failed_removal: return ret; } + +int remove_memory(u64 start, u64 size) +{ + unsigned long start_pfn, end_pfn; + + start_pfn = PFN_DOWN(start); + end_pfn = start_pfn + PFN_DOWN(size); + return offline_pages(start_pfn, end_pfn, 120 * HZ); +} #else int remove_memory(u64 start, u64 size) { return -EINVAL; } -EXPORT_SYMBOL_GPL(remove_memory); #endif /* CONFIG_MEMORY_HOTREMOVE */ +EXPORT_SYMBOL_GPL(remove_memory); |