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From: Trond Myklebust <trond.myklebust@primarydata.com>
To: linux-nfs@vger.kernel.org
Subject: [RFC PATCH 4/5] pNFS: Allow multiple connections to the DS
Date: Tue,  2 May 2017 12:38:11 -0400	[thread overview]
Message-ID: <20170502163812.6211-8-trond.myklebust@primarydata.com> (raw)
In-Reply-To: <20170502163812.6211-7-trond.myklebust@primarydata.com>

If the user specifies -onconn=<number> mount option, and the transport
protocol is TCP, then set up <number> connections to the pNFS data server
as well. The connections will all go to the same IP address.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
 fs/nfs/nfs3client.c | 3 +++
 fs/nfs/nfs4client.c | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/fs/nfs/nfs3client.c b/fs/nfs/nfs3client.c
index 7879f2a0fcfd..8c624c74ddbe 100644
--- a/fs/nfs/nfs3client.c
+++ b/fs/nfs/nfs3client.c
@@ -100,6 +100,9 @@ struct nfs_client *nfs3_set_ds_client(struct nfs_server *mds_srv,
 		return ERR_PTR(-EINVAL);
 	cl_init.hostname = buf;
 
+	if (mds_clp->cl_nconnect > 1 && ds_proto == XPRT_TRANSPORT_TCP)
+		cl_init.nconnect = mds_clp->cl_nconnect;
+
 	if (mds_srv->flags & NFS_MOUNT_NORESVPORT)
 		set_bit(NFS_CS_NORESVPORT, &cl_init.init_flags);
 
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index c9b10b7829f0..bfea1b232dd2 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -912,6 +912,9 @@ struct nfs_client *nfs4_set_ds_client(struct nfs_server *mds_srv,
 		return ERR_PTR(-EINVAL);
 	cl_init.hostname = buf;
 
+	if (mds_clp->cl_nconnect > 1 && ds_proto == XPRT_TRANSPORT_TCP)
+		cl_init.nconnect = mds_clp->cl_nconnect;
+
 	if (mds_srv->flags & NFS_MOUNT_NORESVPORT)
 		__set_bit(NFS_CS_NORESVPORT, &cl_init.init_flags);
 
-- 
2.9.3


  reply	other threads:[~2017-05-02 16:38 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-02 16:38 [PATCH 0/3] Fix up a couple of issues around layout handling Trond Myklebust
2017-05-02 16:38 ` [RFC PATCH 1/5] SUNRPC: Allow creation of RPC clients with multiple connections Trond Myklebust
2017-05-02 16:38   ` [PATCH 1/3] pNFS: Don't clear the layout return info if there are segments to return Trond Myklebust
2017-05-02 16:38     ` [RFC PATCH 2/5] NFS: Add a mount option to specify number of TCP connections to use Trond Myklebust
2017-05-02 16:38       ` [PATCH 2/3] pNFS: Fix a deadlock when coalescing writes and returning the layout Trond Myklebust
2017-05-02 16:38         ` [RFC PATCH 3/5] NFSv4: Allow multiple connections to NFSv4.x (x>0) servers Trond Myklebust
2017-05-02 16:38           ` [PATCH 3/3] pNFS: Fix a typo in pnfs_generic_alloc_ds_commits Trond Myklebust
2017-05-02 16:38             ` Trond Myklebust [this message]
2017-05-02 16:38               ` [RFC PATCH 5/5] NFS: Display the "nconnect" mount option if it is set Trond Myklebust
  -- strict thread matches above, loose matches on Subject: below --
2017-04-28 17:25 [RFC PATCH 0/5] Fun with the multipathing code Trond Myklebust
2017-04-28 17:25 ` [RFC PATCH 1/5] SUNRPC: Allow creation of RPC clients with multiple connections Trond Myklebust
2017-04-28 17:25   ` [RFC PATCH 2/5] NFS: Add a mount option to specify number of TCP connections to use Trond Myklebust
2017-04-28 17:25     ` [RFC PATCH 3/5] NFSv4: Allow multiple connections to NFSv4.x (x>0) servers Trond Myklebust
2017-04-28 17:25       ` [RFC PATCH 4/5] pNFS: Allow multiple connections to the DS Trond Myklebust

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