diff options
| author | KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2007-10-16 01:26:14 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-16 09:43:02 -0700 |
| commit | 48e94196a533dbee17c252bf80d0310fb8c8c2eb (patch) | |
| tree | 9b29060b0e2600dc7da645fd436dc94c25d1fb36 /include | |
| parent | de33b821f34dc9e2fabf81a8ba464f3ef039bd00 (diff) | |
| download | linux-48e94196a533dbee17c252bf80d0310fb8c8c2eb.tar.gz linux-48e94196a533dbee17c252bf80d0310fb8c8c2eb.tar.bz2 linux-48e94196a533dbee17c252bf80d0310fb8c8c2eb.zip | |
fix memory hot remove not configured case.
Now, arch dependent code around CONFIG_MEMORY_HOTREMOVE is a mess.
This patch cleans up them. This is against 2.6.23-rc6-mm1.
- fix compile failure on ia64/ CONFIG_MEMORY_HOTPLUG && !CONFIG_MEMORY_HOTREMOVE case.
- For !CONFIG_MEMORY_HOTREMOVE, add generic no-op remove_memory(),
which returns -EINVAL.
- removed remove_pages() only used in powerpc.
- removed no-op remove_memory() in i386, sh, sparc64, x86_64.
- only powerpc returns -ENOSYS at memory hot remove(no-op). changes it
to return -EINVAL.
Note:
Currently, only ia64 supports CONFIG_MEMORY_HOTREMOVE. I welcome other
archs if there are requirements and testers.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/memory_hotplug.h | 12 |
1 files changed, 2 insertions, 10 deletions
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); |