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| author | Chuck Lever <chuck.lever@oracle.com> | 2019-06-19 17:33:15 +0300 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2019-07-09 17:30:25 +0300 |
| commit | 0ab115237025f5e379620bbcd56a02697d07b002 (patch) | |
| tree | 670d6d24149aa7f2b1e3ab254e6658c2a297441a /net/sunrpc/xprtrdma/verbs.c | |
| parent | d8099feda4833bab96b1bf312e9e6aad6b771570 (diff) | |
| download | linux-0ab115237025f5e379620bbcd56a02697d07b002.tar.xz | |
xprtrdma: Wake RPCs directly in rpcrdma_wc_send path
Eliminate a context switch in the path that handles RPC wake-ups
when a Receive completion has to wait for a Send completion.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net/sunrpc/xprtrdma/verbs.c')
| -rw-r--r-- | net/sunrpc/xprtrdma/verbs.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c index c50a4b295bd7..4e22cc244149 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -1462,8 +1462,7 @@ rpcrdma_ep_post(struct rpcrdma_ia *ia, struct ib_send_wr *send_wr = &req->rl_sendctx->sc_wr; int rc; - if (!ep->rep_send_count || - test_bit(RPCRDMA_REQ_F_TX_RESOURCES, &req->rl_flags)) { + if (!ep->rep_send_count || kref_read(&req->rl_kref) > 1) { send_wr->send_flags |= IB_SEND_SIGNALED; ep->rep_send_count = ep->rep_send_batch; } else { |