On 07/24, Oleg Nesterov wrote: > > On 07/24, Song Liu wrote: > > > > This patch allows uprobe to use original page when possible (all uprobes > > on the page are already removed). > > and only if the original page is already in the page cache and uptodate, > right? > > another reason why I think unmap makes more sense... but I won't argue. but somehow I forgot we need to read the original page anyway to check pages_identical(), so unmap is not really better, please forget. Oleg.