On Thu, Jul 11, 2024 at 01:33:23AM +0300, Kirill A. Shutemov wrote: > Hm. Do we have text_poke() in hot path? > > Even if we do, I doubt flipping AC flag would make any performance > difference in context of all locking and TLB flushing we do in this > codepath. $ dmesg | grep text_poke | wc -l 237 In a silly guest. And regardless, we don't do unnecessary toggling of rFLAGS.AC. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette