Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction abstraction
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: 2008-06-19 00:25:46
Also in:
lkml, xen-devel
On Wed, 18 Jun 2008, Jeremy Fitzhardinge wrote:
Along the lines of:
Hell no. There's a reason we have a special set_wrprotect() thing. We can do it more efficiently on native hardware by just clearing the bit atomically. No need to do the cmpxchg games. Linus