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authorKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>2007-10-16 04:26:14 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 12:43:02 -0400
commit48e94196a533dbee17c252bf80d0310fb8c8c2eb (patch)
tree9b29060b0e2600dc7da645fd436dc94c25d1fb36 /arch/sparc64/mm
parentde33b821f34dc9e2fabf81a8ba464f3ef039bd00 (diff)
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 'arch/sparc64/mm')
-rw-r--r--arch/sparc64/mm/init.c5
1 files changed, 0 insertions, 5 deletions
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)
1961 num_physpages++; 1961 num_physpages++;
1962} 1962}
1963 1963
1964int remove_memory(u64 start, u64 size)
1965{
1966 return -EINVAL;
1967}
1968
1969#endif /* CONFIG_MEMORY_HOTPLUG */ 1964#endif /* CONFIG_MEMORY_HOTPLUG */