[PATCH 5.15 016/168] sunrpc: add a struct rpc_stats arg to rpc_create_args

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5.15-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Josef Bacik <josef@xxxxxxxxxxxxxx>

[ Upstream commit 2057a48d0dd00c6a2a94ded7df2bf1d3f2a4a0da ]

We want to be able to have our rpc stats handled in a per network
namespace manner, so add an option to rpc_create_args to specify a
different rpc_stats struct instead of using the one on the rpc_program.

Signed-off-by: Josef Bacik <josef@xxxxxxxxxxxxxx>
Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
Stable-dep-of: 24457f1be29f ("nfs: Handle error of rpc_proc_register() in nfs_net_init().")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 include/linux/sunrpc/clnt.h | 1 +
 net/sunrpc/clnt.c           | 5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 71ec22b1df860..9c5197c360b98 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -130,6 +130,7 @@ struct rpc_create_args {
 	const char		*servername;
 	const char		*nodename;
 	const struct rpc_program *program;
+	struct rpc_stat		*stats;
 	u32			prognumber;	/* overrides program->number */
 	u32			version;
 	rpc_authflavor_t	authflavor;
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index af1ca707c3d35..59fd6dedbbed2 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -398,7 +398,7 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args,
 	clnt->cl_maxproc  = version->nrprocs;
 	clnt->cl_prog     = args->prognumber ? : program->number;
 	clnt->cl_vers     = version->number;
-	clnt->cl_stats    = program->stats;
+	clnt->cl_stats    = args->stats ? : program->stats;
 	clnt->cl_metrics  = rpc_alloc_iostats(clnt);
 	rpc_init_pipe_dir_head(&clnt->cl_pipedir_objects);
 	err = -ENOMEM;
@@ -677,6 +677,7 @@ struct rpc_clnt *rpc_clone_client(struct rpc_clnt *clnt)
 		.version	= clnt->cl_vers,
 		.authflavor	= clnt->cl_auth->au_flavor,
 		.cred		= clnt->cl_cred,
+		.stats		= clnt->cl_stats,
 	};
 	return __rpc_clone_client(&args, clnt);
 }
@@ -699,6 +700,7 @@ rpc_clone_client_set_auth(struct rpc_clnt *clnt, rpc_authflavor_t flavor)
 		.version	= clnt->cl_vers,
 		.authflavor	= flavor,
 		.cred		= clnt->cl_cred,
+		.stats		= clnt->cl_stats,
 	};
 	return __rpc_clone_client(&args, clnt);
 }
@@ -979,6 +981,7 @@ struct rpc_clnt *rpc_bind_new_program(struct rpc_clnt *old,
 		.version	= vers,
 		.authflavor	= old->cl_auth->au_flavor,
 		.cred		= old->cl_cred,
+		.stats		= old->cl_stats,
 	};
 	struct rpc_clnt *clnt;
 	int err;
-- 
2.43.0







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