xprtrdma: Place registered MWs on a per-req list

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Instead of placing registered MWs sparsely into the rl_segments
array, place these MWs on a per-req list.

ro_unmap_{sync,safe} can then simply pull those MWs off the list
instead of walking through the array.

This change significantly reduces the size of struct rpcrdma_req
by removing nsegs and rl_mw from every array element.

As an additional clean-up, chunk co-ordinates are returned in the
"*mw" output argument so they are no longer needed in every
array element.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

...

This commit is contained in:

Chuck Lever 2016-06-29 13:54:16 -04:00 • committed by Anna Schumaker

parent 2ffc871a57

commit 9d6b040978

6 changed files with 94 additions and 139 deletions

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65

net/sunrpc/xprtrdma/fmr_ops.c

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72

net/sunrpc/xprtrdma/frwr_ops.c

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81

net/sunrpc/xprtrdma/rpc_rdma.c

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3

net/sunrpc/xprtrdma/transport.c

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1

net/sunrpc/xprtrdma/verbs.c

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11

net/sunrpc/xprtrdma/xprt_rdma.h

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