On Wed, Aug 17, 2016 at 03:24:38PM -0400, Rob Clark wrote: > hmm, looks like, at least on arm (not sure about arm64), > > #define __copy_from_user_inatomic __copy_from_user > > ie. copy_from_user() minus the access_ok() and memset in the > !access_ok() path.. but maybe what I want is just the > pagefault_disable() if that disables copy_from_user() being able to > block.. On a bunch of platforms copy_from_user() starts with might_sleep(); again, that'll spread to all of the pretty soon. Right now those primitives are very badly out of sync; this will change, but let's not add more PITA sources. -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
