On Wed, Apr 29, 2015 at 02:18:49PM -0700, Linus Torvalds wrote: > On Wed, Apr 29, 2015 at 2:05 PM, Kirill A. Shutemov > <kirill@xxxxxxxxxxxxx> wrote: > > > > This sounds too ugly to be exposed it as ABI. > > Oh, pretty it ain't. However, regressions in many ways are worse. If > it makes it possible to not regress... One idea is to extend kcmp(2) with KCMP_PAGE. idx1 and idx2 are virtual addresses in two processes. It returns 0 if addresses points to the same page and 3 otherwise. Would it be enough for the use case? I guess it could be too slow to check one page a time... Invent new kcmpv(2)? ;) -- Kirill A. Shutemov -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
