Messages in this thread | | | Date | Fri, 24 Apr 2015 07:57:38 -0700 | From | "Paul E. McKenney" <> | Subject | Re: Interacting with coherent memory on external devices |
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On Fri, Apr 24, 2015 at 09:12:07AM -0500, Christoph Lameter wrote: > On Thu, 23 Apr 2015, Paul E. McKenney wrote: > > > > > DAX > > > > DAX is a mechanism for providing direct-memory access to > > high-speed non-volatile (AKA "persistent") memory. Good > > introductions to DAX may be found in the following LWN > > articles: > > DAX is a mechanism to access memory not managed by the kernel and is the > successor to XIP. It just happens to be needed for persistent memory. > Fundamentally any driver can provide an MMAPPed interface to allow access > to a devices memory.
I will take another look, but others in this thread have called out difficulties with DAX's filesystem nature.
Thanx, Paul
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