From b4b9d2ccf0be61c69213f6ae4e33377c05194ef4 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Wed, 26 Nov 2014 14:44:43 -0500 Subject: 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/ / 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 Signed-off-by: Trond Myklebust --- net/sunrpc/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'net/sunrpc/Kconfig') diff --git a/net/sunrpc/Kconfig b/net/sunrpc/Kconfig index 0754d0f..fb78117 100644 --- a/net/sunrpc/Kconfig +++ b/net/sunrpc/Kconfig @@ -35,6 +35,7 @@ config RPCSEC_GSS_KRB5 config SUNRPC_DEBUG bool "RPC: Enable dprintk debugging" depends on SUNRPC && SYSCTL + select DEBUG_FS help This option enables a sysctl-based debugging interface that is be used by the 'rpcdebug' utility to turn on or off -- cgit v1.1