Re: page fault fastpath patch v2: fix race conditions, stats for 8,32 and 512 cpu SMP

From: Christoph Lameter <clameter_at_sgi.com>
Date: 2004-08-19 11:19:14
> > - One could avoid pte locking by introducing a pte_cmpxchg. cmpxchg
> > seems to be supported by all ia64 and i386 cpus except the original 80386.
>
> I do think this will be a more fruitful direction than pte locking:
> just looking through the arches for spare bits puts me off pte locking.

Thanks for the support. Got a V3 here (not ready to post yet) that throws
out the locks and uses cmpxchg instead. It also removes the use of
page_table_lock completely from handle_mm_fault.
-
To unsubscribe from this list: send the line "unsubscribe linux-ia64" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Received on Wed Aug 18 21:21:49 2004

This archive was generated by hypermail 2.1.8 : 2005-08-02 09:20:29 EST