On 11/29, Andi Kleen wrote: > > > Andi, et al. I am going to discuss the things I do not really > > understand, probably this can't make any sense, but... > > I think it's enough to set the dirty bit in the underlying > struct page, no need to play games with the PTE.
Ah, sorry for confusion, I guess you misunderstood. I meant, perhaps sys_text_poke() doesn't the in-kernel text_poke machinery altogether? Can't we invalidate pte (so that any user will stuck in page fault), update the page(s), restore the pte and drop the locks? This way sys_text_poke() won't be x86-specific, and it will be per-mm. Oleg. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
