diff options
| author | Andi Kleen | 2006-04-07 19:49:15 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2006-04-09 20:53:16 +0200 |
| commit | 9d99aaa31f5994d1923c3713ce9144c4c42332e1 (patch) | |
| tree | ae608593ca196dd6493cccbdfc1b8dd098e91ee8 /include/linux | |
| parent | [PATCH] x86_64: Clean up execve path (diff) | |
| download | kernel-qcow2-linux-9d99aaa31f5994d1923c3713ce9144c4c42332e1.tar.gz kernel-qcow2-linux-9d99aaa31f5994d1923c3713ce9144c4c42332e1.tar.xz kernel-qcow2-linux-9d99aaa31f5994d1923c3713ce9144c4c42332e1.zip | |
[PATCH] x86_64: Support memory hotadd without sparsemem
Memory hotadd doesn't need SPARSEMEM, but can be handled by just preallocating
mem_maps. This only needs some untangling of ifdefs to enable the necessary
code even without SPARSEMEM.
Originally from Keith Mannthey, hacked by AK.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/init.h | 3 | ||||
| -rw-r--r-- | include/linux/memory_hotplug.h | 14 |
2 files changed, 9 insertions, 8 deletions
diff --git a/include/linux/init.h b/include/linux/init.h index ed0ac7c39fdc..93dcbe1abb4c 100644 --- a/include/linux/init.h +++ b/include/linux/init.h @@ -245,7 +245,8 @@ void __init parse_early_param(void); #define __cpuexitdata __exitdata #endif -#ifdef CONFIG_MEMORY_HOTPLUG +#if defined(CONFIG_MEMORY_HOTPLUG) || defined(CONFIG_ACPI_HOTPLUG_MEMORY) \ + || defined(CONFIG_ACPI_HOTPLUG_MEMORY_MODULE) #define __meminit #define __meminitdata #define __memexit diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index 968b1aa3732c..4ca3e6ad03ec 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_hotplug.h @@ -58,8 +58,6 @@ extern int add_one_highpage(struct page *page, int pfn, int bad_ppro); /* need some defines for these for archs that don't support it */ extern void online_page(struct page *page); /* VM interface that may be used by firmware interface */ -extern int add_memory(u64 start, u64 size); -extern int remove_memory(u64 start, u64 size); extern int online_pages(unsigned long, unsigned long); /* reasonably generic interface to expand the physical pages in a zone */ @@ -92,11 +90,6 @@ static inline int mhp_notimplemented(const char *func) return -ENOSYS; } -static inline int __add_pages(struct zone *zone, unsigned long start_pfn, - unsigned long nr_pages) -{ - return mhp_notimplemented(__FUNCTION__); -} #endif /* ! CONFIG_MEMORY_HOTPLUG */ static inline int __remove_pages(struct zone *zone, unsigned long start_pfn, unsigned long nr_pages) @@ -105,4 +98,11 @@ static inline int __remove_pages(struct zone *zone, unsigned long start_pfn, dump_stack(); return -ENOSYS; } + +#if defined(CONFIG_MEMORY_HOTPLUG) || defined(CONFIG_ACPI_HOTPLUG_MEMORY) \ + || defined(CONFIG_ACPI_HOTPLUG_MEMORY_MODULE) +extern int add_memory(u64 start, u64 size); +extern int remove_memory(u64 start, u64 size); +#endif + #endif /* __LINUX_MEMORY_HOTPLUG_H */ |