Re: [PATCH v3 0/4] RDMA/rw: Fix MR pool exhaustion in bvec RDMA READ path

[Leon Romanovsky <leon@kernel.org>]

On Fri, Mar 13, 2026 at 03:41:57PM -0400, Chuck Lever wrote:
> From: Chuck Lever <chuck.lever@oracle.com>
> 
> This series now carries two MR exhaustion fixes and a proposal for
> using contiguous pages for RDMA Read sink buffers in svcrdma.
> 
> Fixes for the MR exhaustion issues should go into 7.0-rc and stable,
> and the contiguous page patches can wait for the next merge window.
> 
> Base commit: v7.0-rc3
> ---
> Changes since v2:
> - Fix similar exhaustion issue for SGL
> - Add patch that introduces svc_rqst_page_release
> 
> Changes since v1:
> - Clarify code comments
> - Allocate contiguous pages for RDMA Read sink buffers
> 
> Chuck Lever (4):
>   RDMA/rw: Fall back to direct SGE on MR pool exhaustion
>   RDMA/rw: Fix MR pool exhaustion in bvec RDMA READ path

I applied these two to wip/leon-for-rc.

Thanks

>   SUNRPC: Add svc_rqst_page_release() helper
>   svcrdma: Use contiguous pages for RDMA Read sink buffers
> 
>  drivers/infiniband/core/rw.c      |  43 ++++--
>  include/linux/sunrpc/svc.h        |  15 ++
>  net/sunrpc/svc.c                  |   7 +-
>  net/sunrpc/svcsock.c              |   2 +-
>  net/sunrpc/xprtrdma/svc_rdma_rw.c | 220 ++++++++++++++++++++++++++++++
>  5 files changed, 268 insertions(+), 19 deletions(-)
> 
> -- 
> 2.53.0
>