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SUNRPC: Add a ->free_slot transport callout

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Refactor: xprtrdma needs to have better control over when RPCs are
awoken from the backlog queue, so replace xprt_free_slot with a
transport op callout.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever
2018-05-04 15:34:59 -04:00
committed by Anna Schumaker
parent 37ac86c3a7
commit a9cde23ab7
5 changed files with 13 additions and 2 deletions
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4
net/sunrpc/xprtsock.c
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@@ -2763,6 +2763,7 @@ static const struct rpc_xprt_ops xs_local_ops = {
.reserve_xprt = xprt_reserve_xprt,
.release_xprt = xs_tcp_release_xprt,
.alloc_slot = xprt_alloc_slot,
.free_slot = xprt_free_slot,
.rpcbind = xs_local_rpcbind,
.set_port = xs_local_set_port,
.connect = xs_local_connect,
@@ -2782,6 +2783,7 @@ static const struct rpc_xprt_ops xs_udp_ops = {
.reserve_xprt = xprt_reserve_xprt_cong,
.release_xprt = xprt_release_xprt_cong,
.alloc_slot = xprt_alloc_slot,
.free_slot = xprt_free_slot,
.rpcbind = rpcb_getport_async,
.set_port = xs_set_port,
.connect = xs_connect,
@@ -2803,6 +2805,7 @@ static const struct rpc_xprt_ops xs_tcp_ops = {
.reserve_xprt = xprt_reserve_xprt,
.release_xprt = xs_tcp_release_xprt,
.alloc_slot = xprt_lock_and_alloc_slot,
.free_slot = xprt_free_slot,
.rpcbind = rpcb_getport_async,
.set_port = xs_set_port,
.connect = xs_connect,
@@ -2834,6 +2837,7 @@ static const struct rpc_xprt_ops bc_tcp_ops = {
.reserve_xprt = xprt_reserve_xprt,
.release_xprt = xprt_release_xprt,
.alloc_slot = xprt_alloc_slot,
.free_slot = xprt_free_slot,
.buf_alloc = bc_malloc,
.buf_free = bc_free,
.send_request = bc_send_request,