Re: [rfc] "fair" rw spinlocks

Andi Kleen
2009-12-07T22:35:30Z

ebiederm@xmission.com (Eric W. Biederman) writes:

> "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> writes:
>>
>> Is it required that all of the processes see the signal before the
>> corresponding interrupt handler returns? (My guess is "no", which
>> enables a trick or two, but thought I should ask.)
>
> Not that I recall. I think it is just an I/O completed signal.

Wasn't there the sysrq SAK too? That one definitely would need
to be careful about synchronicity.

-Andi

--
ak@linux.intel.com -- Speaking for myself only.