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| author | Jeff Layton <jlayton@primarydata.com> | 2014-11-26 14:44:43 -0500 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2014-11-27 13:14:51 -0500 |
| commit | b4b9d2ccf0be61c69213f6ae4e33377c05194ef4 (patch) | |
| tree | 54709e972d890b22b6de65124f87953534aaa9a3 /include/linux/sunrpc/clnt.h | |
| parent | ea5264138d240825a7e3f11d5945d568b74efb91 (diff) | |
| download | talos-op-linux-b4b9d2ccf0be61c69213f6ae4e33377c05194ef4.tar.gz talos-op-linux-b4b9d2ccf0be61c69213f6ae4e33377c05194ef4.zip | |
sunrpc: add debugfs file for displaying client rpc_task queue
It's possible to get a dump of the RPC task queue by writing a value to
/proc/sys/sunrpc/rpc_debug. If you write any value to that file, you get
a dump of the RPC client task list into the log buffer. This is a rather
inconvenient interface however, and makes it hard to get immediate info
about the task queue.
Add a new directory hierarchy under debugfs:
sunrpc/
rpc_clnt/
<clientid>/
Within each clientid directory we create a new "tasks" file that will
dump info similar to what shows up in the log buffer, but with a few
small differences -- we avoid printing raw kernel addresses in favor of
symbolic names and the XID is also displayed.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'include/linux/sunrpc/clnt.h')
| -rw-r--r-- | include/linux/sunrpc/clnt.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h index 70736b98c721..d86acc63b25f 100644 --- a/include/linux/sunrpc/clnt.h +++ b/include/linux/sunrpc/clnt.h @@ -63,6 +63,9 @@ struct rpc_clnt { struct rpc_rtt cl_rtt_default; struct rpc_timeout cl_timeout_default; const struct rpc_program *cl_program; +#if IS_ENABLED(CONFIG_SUNRPC_DEBUG) + struct dentry *cl_debugfs; /* debugfs directory */ +#endif }; /* @@ -176,5 +179,6 @@ size_t rpc_peeraddr(struct rpc_clnt *, struct sockaddr *, size_t); const char *rpc_peeraddr2str(struct rpc_clnt *, enum rpc_display_format_t); int rpc_localaddr(struct rpc_clnt *, struct sockaddr *, size_t); +const char *rpc_proc_name(const struct rpc_task *task); #endif /* __KERNEL__ */ #endif /* _LINUX_SUNRPC_CLNT_H */ |
