diff options
| -rw-r--r-- | arch/ia64/mm/init.c | 3 | ||||
| -rw-r--r-- | arch/powerpc/mm/mem.c | 45 | ||||
| -rw-r--r-- | arch/sh/mm/init.c | 6 | ||||
| -rw-r--r-- | arch/sparc64/mm/init.c | 5 | ||||
| -rw-r--r-- | arch/x86/mm/init_32.c | 5 | ||||
| -rw-r--r-- | arch/x86/mm/init_64.c | 6 | ||||
| -rw-r--r-- | include/linux/memory_hotplug.h | 12 | ||||
| -rw-r--r-- | mm/memory_hotplug.c | 6 |
8 files changed, 10 insertions, 78 deletions
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index 947ec0c73234..3e10152abbf0 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -718,7 +718,7 @@ 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; @@ -734,4 +734,5 @@ 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 32dcfc9b0082..81eb96ec13b2 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -129,51 +129,6 @@ int __devinit arch_add_memory(int nid, u64 start, u64 size) return __add_pages(zone, start_pfn, nr_pages); } -/* - * First pass at this code will check to determine if the remove - * request is within the RMO. Do not allow removal within the RMO. - */ -int __devinit remove_memory(u64 start, u64 size) -{ - struct zone *zone; - unsigned long start_pfn, end_pfn, nr_pages; - - start_pfn = start >> PAGE_SHIFT; - nr_pages = size >> PAGE_SHIFT; - end_pfn = start_pfn + nr_pages; - - printk("%s(): Attempting to remove memoy in range " - "%lx to %lx\n", __func__, start, start+size); - /* - * check for range within RMO - */ - zone = page_zone(pfn_to_page(start_pfn)); - - printk("%s(): memory will be removed from " - "the %s zone\n", __func__, zone->name); - - /* - * not handling removing memory ranges that - * overlap multiple zones yet - */ - if (end_pfn > (zone->zone_start_pfn + zone->spanned_pages)) - goto overlap; - - /* make sure it is NOT in RMO */ - if ((start < lmb.rmo_size) || ((start+size) < lmb.rmo_size)) { - printk("%s(): range to be removed must NOT be in RMO!\n", - __func__); - goto in_rmo; - } - - return __remove_pages(zone, start_pfn, nr_pages); - -overlap: - printk("%s(): memory range to be removed overlaps " - "multiple zones!!!\n", __func__); -in_rmo: - return -1; -} #endif /* CONFIG_MEMORY_HOTPLUG */ void show_mem(void) diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c index 82b68c789a5f..d5e160da64b2 100644 --- a/arch/sh/mm/init.c +++ b/arch/sh/mm/init.c @@ -294,12 +294,6 @@ int arch_add_memory(int nid, u64 start, u64 size) } EXPORT_SYMBOL_GPL(arch_add_memory); -int remove_memory(u64 start, u64 size) -{ - return -EINVAL; -} -EXPORT_SYMBOL_GPL(remove_memory); - #ifdef CONFIG_NUMA int memory_add_physaddr_to_nid(u64 addr) { diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index 69538d1aa0ad..100c4456ed1e 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -1961,9 +1961,4 @@ void online_page(struct page *page) num_physpages++; } -int remove_memory(u64 start, u64 size) -{ - return -EINVAL; -} - #endif /* CONFIG_MEMORY_HOTPLUG */ diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index 730a5b177b1f..dda4e83649a0 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -735,11 +735,6 @@ int arch_add_memory(int nid, u64 start, u64 size) return __add_pages(zone, start_pfn, nr_pages); } -int remove_memory(u64 start, u64 size) -{ - return -EINVAL; -} -EXPORT_SYMBOL_GPL(remove_memory); #endif struct kmem_cache *pmd_cache; diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 7d4fc633a9c9..1e3862e41065 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -474,12 +474,6 @@ error: } EXPORT_SYMBOL_GPL(arch_add_memory); -int remove_memory(u64 start, u64 size) -{ - return -EINVAL; -} -EXPORT_SYMBOL_GPL(remove_memory); - #if !defined(CONFIG_ACPI_NUMA) && defined(CONFIG_NUMA) int memory_add_physaddr_to_nid(u64 start) { diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index 665951ef0390..8fee7a45736b 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_hotplug.h @@ -58,10 +58,9 @@ extern int add_one_highpage(struct page *page, int pfn, int bad_ppro); extern void online_page(struct page *page); /* VM interface that may be used by firmware interface */ extern int online_pages(unsigned long, unsigned long); -#ifdef CONFIG_MEMORY_HOTREMOVE -extern int offline_pages(unsigned long, unsigned long, unsigned long); extern void __offline_isolated_pages(unsigned long, unsigned long); -#endif +extern int offline_pages(unsigned long, unsigned long, unsigned long); + /* reasonably generic interface to expand the physical pages in a zone */ extern int __add_pages(struct zone *zone, unsigned long start_pfn, unsigned long nr_pages); @@ -171,13 +170,6 @@ static inline int mhp_notimplemented(const char *func) } #endif /* ! CONFIG_MEMORY_HOTPLUG */ -static inline int __remove_pages(struct zone *zone, unsigned long start_pfn, - unsigned long nr_pages) -{ - printk(KERN_WARNING "%s() called, not yet supported\n", __FUNCTION__); - dump_stack(); - return -ENOSYS; -} extern int add_memory(int nid, u64 start, u64 size); extern int arch_add_memory(int nid, u64 start, u64 size); diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index c4e1b958efde..091b9c6c2529 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -555,4 +555,10 @@ failed_removal: undo_isolate_page_range(start_pfn, end_pfn); return ret; } +#else +int remove_memory(u64 start, u64 size) +{ + return -EINVAL; +} +EXPORT_SYMBOL_GPL(remove_memory); #endif /* CONFIG_MEMORY_HOTREMOVE */ |