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Andi Kleen committed 4057923614e
[PATCH] i386: Fix race in iounmap We need to hold the vmlist_lock while doing change_page_attr, otherwise we could reset someone else's mapping. Requires previous patch to add __remove_vm_area Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>