Messages in this thread | | | Date | Thu, 17 Dec 2009 14:42:03 -0600 (CST) | From | Christoph Lameter <> | Subject | Re: [mm][RFC][PATCH 0/11] mm accessor updates. |
| |
On Thu, 17 Dec 2009, Peter Zijlstra wrote:
> > That is why I think that the accessors are a good first step. > > They're not, they're daft, they operate on a global resource mm_struct, > that's the whole problem, giving it a different name isn't going to > solve anything.
It is not about naming. The accessors hide the locking mechanism for mmap_sem. Then you can change the locking in a central place.
The locking may even become configurable later. Maybe an embedded solution will want the existing scheme but dual quad socket may want a distributed reference counter to avoid bouncing cachelines on faults.
| |