On 05/27/2010 10:02 AM, Minchan Kim wrote:
Hmm, I can understand this point. Now, rmap code always depeneds on root anon_vma's lock. I think it doesn't depends on KSM and MIGRATION. If we don't use KSM and MIGRATION and it is compiled out, Can root's anon_vma disappear during rmap walking? who prevent it? What am I missing?
unlink_anon_vmas walks the list in the order from newest to oldest, ie. the root always gets unlinked (and potentially freed) last. -- All rights reversed -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>