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Commit 73eee9b2 authored by Chuck Lever's avatar Chuck Lever Committed by Anna Schumaker
Browse files

xprtrdma: Add ro_unmap_sync method for all-physical registration 



physical's ro_unmap is synchronous already. The new ro_unmap_sync
method just has to DMA unmap all MRs associated with the RPC
request.

Signed-off-by: default avatarChuck Lever <chuck.lever@oracle.com>
Tested-by: default avatarDevesh Sharma <devesh.sharma@avagotech.com>
Signed-off-by: default avatarAnna Schumaker <Anna.Schumaker@Netapp.com>
parent 7c7a5390

net/sunrpc/xprtrdma/physical_ops.c

+13 −0
Original line number Diff line number Diff line
@@ -83,6 +83,18 @@ physical_op_unmap(struct rpcrdma_xprt *r_xprt, struct rpcrdma_mr_seg *seg) 
	return 1;

}



/* DMA unmap all memory regions that were mapped for "req".

 */

static void

physical_op_unmap_sync(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req)

{

	struct ib_device *device = r_xprt->rx_ia.ri_device;

	unsigned int i;



	for (i = 0; req->rl_nchunks; --req->rl_nchunks)

		rpcrdma_unmap_one(device, &req->rl_segments[i++]);

}



static void

physical_op_destroy(struct rpcrdma_buffer *buf)

{
@@ -90,6 +102,7 @@ physical_op_destroy(struct rpcrdma_buffer *buf) 


const struct rpcrdma_memreg_ops rpcrdma_physical_memreg_ops = {

	.ro_map				= physical_op_map,

	.ro_unmap_sync			= physical_op_unmap_sync,

	.ro_unmap			= physical_op_unmap,

	.ro_open			= physical_op_open,

	.ro_maxpages			= physical_op_maxpages,