tree 9bc86163ba7b2fa842b3aff2f087be6419f246bb
parent 0a54703904a4a206686b4e8c3f5a6927b60747aa
author KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> 1151402016 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1151454756 -0700

[PATCH] catch valid mem range at onlining memory

This patch allows hot-add memory which is not aligned to section.

Now, hot-added memory has to be aligned to section size.  Considering big
section sized archs, this is not useful.

When hot-added memory is registerd as iomem resoruce by iomem resource
patch, we can make use of that information to detect valid memory range.

Note: With this, not-aligned memory can be registerd. To allow hot-add
      memory with holes, we have to do more work around add_memory().
      (It doesn't allows add memory to already existing mem section.)

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>