> > > > > > > > Let's start with page_cache_pipe_buf_confirm(). How should we deal > > > > with finding an invalidated page (!PageUptodate(page) && > > > > !page->mapping)? > > > > > > I suspect we just have to use it. After all, it was valid when the read > > > was done. The fact that it got invalidated later is kind of immaterial. > > > > Right. But what if it's invalidated *before* becoming uptodate (if > > you'd read my mail further, I discussed this). > > Please ignore, this can't happen of course due to page locking... Or it can only happen if there was an I/O error on reading the page. So it's an issue after all... Miklos -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html