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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-09-05 03:51:44 +0200 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-09-05 16:13:15 +0200 |
| commit | 2f048db4680ae19da13df15d352ac02748781ecb (patch) | |
| tree | 48a6c8d873fee159186f528438bdfeecd6b48d84 /net | |
| parent | SUNRPC: Ensure rpc_task->tk_pid is available for tracepoints (diff) | |
| download | linux-2f048db4680ae19da13df15d352ac02748781ecb.tar.xz linux-2f048db4680ae19da13df15d352ac02748781ecb.zip | |
SUNRPC: Add an identifier for struct rpc_clnt
Add an identifier in order to aid debugging.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/sunrpc/clnt.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 0cd5b6d5c75e..0a790690d142 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -313,6 +313,24 @@ out: return err; } +static DEFINE_IDA(rpc_clids); + +static int rpc_alloc_clid(struct rpc_clnt *clnt) +{ + int clid; + + clid = ida_simple_get(&rpc_clids, 0, 0, GFP_KERNEL); + if (clid < 0) + return clid; + clnt->cl_clid = clid; + return 0; +} + +static void rpc_free_clid(struct rpc_clnt *clnt) +{ + ida_simple_remove(&rpc_clids, clnt->cl_clid); +} + static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, struct rpc_xprt *xprt, struct rpc_clnt *parent) @@ -343,6 +361,10 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, goto out_err; clnt->cl_parent = parent ? : clnt; + err = rpc_alloc_clid(clnt); + if (err) + goto out_no_clid; + rcu_assign_pointer(clnt->cl_xprt, xprt); clnt->cl_procinfo = version->procs; clnt->cl_maxproc = version->nrprocs; @@ -386,6 +408,8 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, out_no_path: rpc_free_iostats(clnt->cl_metrics); out_no_stats: + rpc_free_clid(clnt); +out_no_clid: kfree(clnt); out_err: rpciod_down(); @@ -646,6 +670,7 @@ rpc_free_client(struct rpc_clnt *clnt) clnt->cl_metrics = NULL; xprt_put(rcu_dereference_raw(clnt->cl_xprt)); rpciod_down(); + rpc_free_clid(clnt); kfree(clnt); } |