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? -- Jens Axboe
