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From: Mike Snitzer <snitzer@kernel.org>
To: linux-nfs@vger.kernel.org
Cc: Jeff Layton <jlayton@kernel.org>,
	Chuck Lever <chuck.lever@oracle.com>,
	Trond Myklebust <trondmy@hammerspace.com>,
	NeilBrown <neilb@suse.de>,
	snitzer@hammerspace.com
Subject: [RFC PATCH v2 01/15] nfs: pass nfs_client to nfs_initiate_pgio
Date: Tue, 11 Jun 2024 23:07:38 -0400
Message-ID: <20240612030752.31754-2-snitzer@kernel.org>
In-Reply-To: <20240612030752.31754-1-snitzer@kernel.org>
References: <20240612030752.31754-1-snitzer@kernel.org>
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From: Weston Andros Adamson <dros@primarydata.com>

The nfs_client is needed for localio support. Otherwise it won't be
possible to disable localio if it is attempted but fails.

Signed-off-by: Weston Andros Adamson <dros@primarydata.com>
Signed-off-by: Lance Shelton <lance.shelton@hammerspace.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
---
 fs/nfs/filelayout/filelayout.c         |  4 ++--
 fs/nfs/flexfilelayout/flexfilelayout.c |  6 ++++--
 fs/nfs/internal.h                      |  5 +++--
 fs/nfs/pagelist.c                      | 10 ++++++----
 4 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c
index 29d84dc66ca3..43e16e9e0176 100644
--- a/fs/nfs/filelayout/filelayout.c
+++ b/fs/nfs/filelayout/filelayout.c
@@ -486,7 +486,7 @@ filelayout_read_pagelist(struct nfs_pgio_header *hdr)
 	hdr->mds_offset = offset;
 
 	/* Perform an asynchronous read to ds */
-	nfs_initiate_pgio(ds_clnt, hdr, hdr->cred,
+	nfs_initiate_pgio(ds->ds_clp, ds_clnt, hdr, hdr->cred,
 			  NFS_PROTO(hdr->inode), &filelayout_read_call_ops,
 			  0, RPC_TASK_SOFTCONN);
 	return PNFS_ATTEMPTED;
@@ -528,7 +528,7 @@ filelayout_write_pagelist(struct nfs_pgio_header *hdr, int sync)
 	hdr->args.offset = filelayout_get_dserver_offset(lseg, offset);
 
 	/* Perform an asynchronous write */
-	nfs_initiate_pgio(ds_clnt, hdr, hdr->cred,
+	nfs_initiate_pgio(ds->ds_clp, ds_clnt, hdr, hdr->cred,
 			  NFS_PROTO(hdr->inode), &filelayout_write_call_ops,
 			  sync, RPC_TASK_SOFTCONN);
 	return PNFS_ATTEMPTED;
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index 24188af56d5b..327f1a5c9fbe 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -1803,7 +1803,8 @@ ff_layout_read_pagelist(struct nfs_pgio_header *hdr)
 	hdr->mds_offset = offset;
 
 	/* Perform an asynchronous read to ds */
-	nfs_initiate_pgio(ds_clnt, hdr, ds_cred, ds->ds_clp->rpc_ops,
+	nfs_initiate_pgio(ds->ds_clp, ds_clnt, hdr, ds_cred,
+			  ds->ds_clp->rpc_ops,
 			  vers == 3 ? &ff_layout_read_call_ops_v3 :
 				      &ff_layout_read_call_ops_v4,
 			  0, RPC_TASK_SOFTCONN);
@@ -1871,7 +1872,8 @@ ff_layout_write_pagelist(struct nfs_pgio_header *hdr, int sync)
 	hdr->args.offset = offset;
 
 	/* Perform an asynchronous write */
-	nfs_initiate_pgio(ds_clnt, hdr, ds_cred, ds->ds_clp->rpc_ops,
+	nfs_initiate_pgio(ds->ds_clp, ds_clnt, hdr, ds_cred,
+			  ds->ds_clp->rpc_ops,
 			  vers == 3 ? &ff_layout_write_call_ops_v3 :
 				      &ff_layout_write_call_ops_v4,
 			  sync, RPC_TASK_SOFTCONN);
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 9f0f4534744b..a9c0c29f7804 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -306,8 +306,9 @@ extern const struct nfs_pageio_ops nfs_pgio_rw_ops;
 struct nfs_pgio_header *nfs_pgio_header_alloc(const struct nfs_rw_ops *);
 void nfs_pgio_header_free(struct nfs_pgio_header *);
 int nfs_generic_pgio(struct nfs_pageio_descriptor *, struct nfs_pgio_header *);
-int nfs_initiate_pgio(struct rpc_clnt *clnt, struct nfs_pgio_header *hdr,
-		      const struct cred *cred, const struct nfs_rpc_ops *rpc_ops,
+int nfs_initiate_pgio(struct nfs_client *clp, struct rpc_clnt *rpc_clnt,
+		      struct nfs_pgio_header *hdr, const struct cred *cred,
+		      const struct nfs_rpc_ops *rpc_ops,
 		      const struct rpc_call_ops *call_ops, int how, int flags);
 void nfs_free_request(struct nfs_page *req);
 struct nfs_pgio_mirror *
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index 6efb5068c116..d9b795c538cd 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -844,8 +844,9 @@ static void nfs_pgio_prepare(struct rpc_task *task, void *calldata)
 		rpc_exit(task, err);
 }
 
-int nfs_initiate_pgio(struct rpc_clnt *clnt, struct nfs_pgio_header *hdr,
-		      const struct cred *cred, const struct nfs_rpc_ops *rpc_ops,
+int nfs_initiate_pgio(struct nfs_client *clp, struct rpc_clnt *rpc_clnt,
+		      struct nfs_pgio_header *hdr, const struct cred *cred,
+		      const struct nfs_rpc_ops *rpc_ops,
 		      const struct rpc_call_ops *call_ops, int how, int flags)
 {
 	struct rpc_task *task;
@@ -855,7 +856,7 @@ int nfs_initiate_pgio(struct rpc_clnt *clnt, struct nfs_pgio_header *hdr,
 		.rpc_cred = cred,
 	};
 	struct rpc_task_setup task_setup_data = {
-		.rpc_client = clnt,
+		.rpc_client = rpc_clnt,
 		.task = &hdr->task,
 		.rpc_message = &msg,
 		.callback_ops = call_ops,
@@ -1070,7 +1071,8 @@ static int nfs_generic_pg_pgios(struct nfs_pageio_descriptor *desc)
 	if (ret == 0) {
 		if (NFS_SERVER(hdr->inode)->nfs_client->cl_minorversion)
 			task_flags = RPC_TASK_MOVEABLE;
-		ret = nfs_initiate_pgio(NFS_CLIENT(hdr->inode),
+		ret = nfs_initiate_pgio(NFS_SERVER(hdr->inode)->nfs_client,
+					NFS_CLIENT(hdr->inode),
 					hdr,
 					hdr->cred,
 					NFS_PROTO(hdr->inode),
-- 
2.44.0