Re: [PATCH v3 04/15] xprtrdma: Don't fall back to PHYSICAL memory registration

2015-07-26 Thread Christoph Hellwig
On Mon, Jul 20, 2015 at 03:03:02PM -0400, Chuck Lever wrote: PHYSICAL memory registration uses a single rkey for all of the client's memory, thus is insecure. It is still useful in some cases for testing. Retain the ability to select PHYSICAL memory registration capability via

[PATCH v3 04/15] xprtrdma: Don't fall back to PHYSICAL memory registration

2015-07-20 Thread Chuck Lever
PHYSICAL memory registration uses a single rkey for all of the client's memory, thus is insecure. It is still useful in some cases for testing. Retain the ability to select PHYSICAL memory registration capability via /proc/sys/sunrpc/rdma_memreg_strategy, but don't fall back to it if the HCA does