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authorTrond Myklebust <trond.myklebust@hammerspace.com>2019-07-16 19:51:29 +0200
committerTrond Myklebust <trond.myklebust@hammerspace.com>2019-07-18 07:12:59 +0200
commit7402a4fedc2bc448100c2d086406c708451b16dc (patch)
tree45bafb2c535f1790f99e41cb7de2b7fb0c199c4e /net/sunrpc/xprtrdma/backchannel.c
parentSUNRPC: Fix initialisation of struct rpc_xprt_switch (diff)
downloadlinux-7402a4fedc2bc448100c2d086406c708451b16dc.tar.xz
linux-7402a4fedc2bc448100c2d086406c708451b16dc.zip
SUNRPC: Fix up backchannel slot table accounting
Add a per-transport maximum limit in the socket case, and add helpers to allow the NFSv4 code to discover that limit. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'net/sunrpc/xprtrdma/backchannel.c')
-rw-r--r--net/sunrpc/xprtrdma/backchannel.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/net/sunrpc/xprtrdma/backchannel.c b/net/sunrpc/xprtrdma/backchannel.c
index ce986591f213..59e624b1d7a0 100644
--- a/net/sunrpc/xprtrdma/backchannel.c
+++ b/net/sunrpc/xprtrdma/backchannel.c
@@ -52,6 +52,13 @@ size_t xprt_rdma_bc_maxpayload(struct rpc_xprt *xprt)
return maxmsg - RPCRDMA_HDRLEN_MIN;
}
+unsigned int xprt_rdma_bc_max_slots(struct rpc_xprt *xprt)
+{
+ struct rpcrdma_xprt *r_xprt = rpcx_to_rdmax(xprt);
+
+ return r_xprt->rx_buf.rb_bc_srv_max_requests;
+}
+
static int rpcrdma_bc_marshal_reply(struct rpc_rqst *rqst)
{
struct rpcrdma_xprt *r_xprt = rpcx_to_rdmax(rqst->rq_xprt);