On 09/11/2014 03:18 PM, Thomas Gleixner wrote: > On Thu, 11 Sep 2014, Qiaowei Ren wrote: >> This patch sets bound violation fields of siginfo struct in #BR >> exception handler by decoding the user instruction and constructing >> the faulting pointer. >> >> This patch does't use the generic decoder, and implements a limited >> special-purpose decoder to decode MPX instructions, simply because the >> generic decoder is very heavyweight not just in terms of performance >> but in terms of interface -- because it has to. > > And why is that an argument to add another special purpose decoder? Peter asked for it to be done this way specifically: https://lkml.org/lkml/2014/6/19/411 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>