On 09/28/2015 09:58 AM, Ingo Molnar wrote:
>
> * Denys Vlasenko <dvlas...@redhat.com> wrote:
>
>> On 09/26/2015 09:50 PM, H. Peter Anvin wrote:
>>> NAK. We really should map the GDT read-only on all 64 bit systems,
>>> since we can't hide the address fro
On 09/26/2015 09:50 PM, H. Peter Anvin wrote:
> NAK. We really should map the GDT read-only on all 64 bit systems,
> since we can't hide the address from SLDT. Same with the IDT.
Sorry, I don't understand your point.
> On September 26, 2015 11:00:40 AM PDT, Denys Vlasenko <dvlas..
<<< HERE
00016000 wO .data..percpu 0018 cpu_tlbstate
...
00018418 g .data..percpu __per_cpu_end
Run-tested on a 144 CPU machine.
Signed-off-by: Denys Vlasenko <dvlas...@redhat.com>
CC: Ingo Molnar <mi...@kernel.org>
CC: H. P
On Tue, Feb 10, 2015 at 10:30 AM, Raghavendra K T
raghavendra...@linux.vnet.ibm.com wrote:
On 02/10/2015 06:23 AM, Linus Torvalds wrote:
add_smp(lock-tickets.head, TICKET_LOCK_INC);
if (READ_ONCE(lock-tickets.tail) TICKET_SLOWPATH_FLAG) ..
into something like
val
On Tue, Feb 10, 2015 at 2:18 PM, Denys Vlasenko
vda.li...@googlemail.com wrote:
while (1) {
if (READ_ONCE(lock-tickets.head) != TICKET_TAIL(val))
cpu_relax();
}
Doh should be
while (READ_ONCE(lock-tickets.head) != TICKET_TAIL(val
