Re: [RFC] 2.3/4 VM queues idea

Stephen C. Tweedie
2000-05-26T17:46:00Z

Hi,

On Fri, May 26, 2000 at 10:35:30AM -0700, Matthew Dillon wrote:
>
> Hmm. I know apps which use madvise() to manage allocated/free pages
> efficiently, but not any that use mprotect().

Persistent and distributed data stores use it to mark existing
pages as PROT_NONE, so that they can trap accesses to the data
and perform the necessary locking to make the local storage
consistent with the on-disk data (persistent object stores) or
with other machines in the cluster (for distributed shared
memory).

--Stephen