Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=de33b821f34dc9e2fabf81a8ba464f3ef039bd00
Commit: de33b821f34dc9e2fabf81a8ba464f3ef039bd00
Parent: 0c0e6195896535481173df98935ad8db174f4d45
Author: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
AuthorDate: Tue Oct 16 01:26:13 2007 -0700
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Tue Oct 16 09:43:02 2007 -0700
memory unplug: ia64 interface
IA64 memory unplug interface.
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
arch/ia64/mm/init.c | 12 +++++++++++-
1 files changed, 11 insertions(+), 1 deletions(-)
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index a096b30..947ec0c 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -721,7 +721,17 @@ int arch_add_memory(int nid, u64 start, u64 size)
int remove_memory(u64 start, u64 size)
{
- return -EINVAL;
+ unsigned long start_pfn, end_pfn;
+ unsigned long timeout = 120 * HZ;
+ int ret;
+ start_pfn = start >> PAGE_SHIFT;
+ end_pfn = start_pfn + (size >> PAGE_SHIFT);
+ ret = offline_pages(start_pfn, end_pfn, timeout);
+ if (ret)
+ goto out;
+ /* we can free mem_map at this point */
+out:
+ return ret;
}
EXPORT_SYMBOL_GPL(remove_memory);
#endif
-
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