From 48e94196a533dbee17c252bf80d0310fb8c8c2eb Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Tue, 16 Oct 2007 01:26:14 -0700 Subject: 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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/mm/init.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch/ia64/mm') diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index 947ec0c..3e10152 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 -- cgit v1.1