diff mbox

[20/20] NFS: Throttle I/O to the NFS server

Message ID 20170719220955.58210-21-trond.myklebust@primarydata.com (mailing list archive)
State New, archived
Headers show

Commit Message

Trond Myklebust July 19, 2017, 10:09 p.m. UTC 
Ensure that we do not build up large queues of asynchronous I/O work in the
RPC layer that are not being handled by the socket.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
 fs/nfs/pagelist.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index af6731dd4324..a5db892c272b 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -625,7 +625,8 @@  int nfs_initiate_pgio(struct rpc_clnt *clnt, struct nfs_pgio_header *hdr,
 		ret = rpc_wait_for_completion_task(task);
 		if (ret == 0)
 			ret = task->tk_status;
-	}
+	} else
+		rpc_wait_for_msg_send(task);
 	rpc_put_task(task);
 out:
 	return ret;