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| author |   Chuck Lever <chuck.lever@oracle.com> | 2019-08-19 18:43:17 -0400 |
|---|---|---|
| committer |   Anna Schumaker <Anna.Schumaker@Netapp.com> | 2019-08-20 14:06:03 -0400 |
| commit | 395790566eec37706dedeb94779045adc3a7581e (patch) | |
| tree | 3486f83f125d7227f8b5a2b78d9cb6d9e1ea0fd8 /net/sunrpc/xprtrdma/transport.c | |
| parent | xprtrdma: Rename rpcrdma_buffer::rb_all (diff) | |
| download | linux-dev-395790566eec37706dedeb94779045adc3a7581e.tar.xz linux-dev-395790566eec37706dedeb94779045adc3a7581e.zip | |
xprtrdma: Toggle XPRT_CONGESTED in xprtrdma's slot methods
Commit 48be539dd44a ("xprtrdma: Introduce ->alloc_slot call-out for
xprtrdma") added a separate alloc_slot and free_slot to the RPC/RDMA
transport. Later, commit 75891f502f5f ("SUNRPC: Support for
congestion control when queuing is enabled") modified the generic
alloc/free_slot methods, but neglected the methods in xprtrdma.
Found via code review.
Fixes: 75891f502f5f ("SUNRPC: Support for congestion control ... ")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to '')
| -rw-r--r-- | net/sunrpc/xprtrdma/transport.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c index 2ec349ed4770..f4763e8a6761 100644 --- a/net/sunrpc/xprtrdma/transport.c +++ b/net/sunrpc/xprtrdma/transport.c @@ -571,6 +571,7 @@ xprt_rdma_alloc_slot(struct rpc_xprt *xprt, struct rpc_task *task) return; out_sleep: + set_bit(XPRT_CONGESTED, &xprt->state); rpc_sleep_on(&xprt->backlog, task, NULL); task->tk_status = -EAGAIN; } @@ -589,7 +590,8 @@ xprt_rdma_free_slot(struct rpc_xprt *xprt, struct rpc_rqst *rqst) memset(rqst, 0, sizeof(*rqst)); rpcrdma_buffer_put(&r_xprt->rx_buf, rpcr_to_rdmar(rqst)); - rpc_wake_up_next(&xprt->backlog); + if (unlikely(!rpc_wake_up_next(&xprt->backlog))) + clear_bit(XPRT_CONGESTED, &xprt->state); } static bool rpcrdma_check_regbuf(struct rpcrdma_xprt *r_xprt, |