* H. Peter Anvin <hpa@xxxxxxxxx> wrote: > On October 5, 2015 1:22:44 PM PDT, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote: > > > > We could probably do them outside the loop, rather than tightly around the > > actual move instructions. Peter (hpa), is there some sane interface to try to > > do that? > > There are... in particular the get_user_try/catch mechanism, used among other > things by the signal handing, as well as the copy functions (I don't have the > original code in front of me so I don't have the context which would be > appropriate.) Yes, but note that those interfaces are x86 only at the moment, so they'd have to be factored out and generalized before we can use it in generic code. Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
