On 4/12/23 10:56?AM, Josh Poimboeuf wrote: > On Wed, Apr 12, 2023 at 10:44:11AM -0600, Jens Axboe wrote: >> On 4/12/23 10:35?AM, Jens Axboe wrote: >>> On 4/12/23 10:25?AM, Josh Poimboeuf wrote: >>>> On Wed, Apr 12, 2023 at 01:44:00PM +0200, Peter Zijlstra wrote: >>>>> On Tue, Apr 11, 2023 at 05:14:00PM -0700, Josh Poimboeuf wrote: >>>>> >>>>>> Peter, what do you think, should we make track uaccess state across >>>>>> function boundaries? >>>>> >>>>> So IIRC the goal was to explicitly dis-allow that. You want minimal code >>>>> executed with STAC and hence disallow calling stuff. >>>> >>>> I guess I was wondering if we could make an exception for calls to >>>> static IPA-optimized functions, so we wouldn't have to scramble to "fix" >>>> compiler optimizations. >>>> >>>> But for now, yeah let's just keep it simple. >>>> >>>> Jens, can you confirm this works? I added __noclone instead of removing >>>> static. >>> >>> Yep, works for me. >> >> Want me to slap that patch on top of the branch that has the commit >> that causes it? > > Yes, please. Thanks! Done! -- Jens Axboe
