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| author | Jim Cromie <jim.cromie@gmail.com> | 2011-12-19 17:12:24 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2012-01-24 12:46:45 -0800 |
| commit | 74df138d508eb35e8b929e165e5403cfbb46a0c5 (patch) | |
| tree | 6d1951d2c53e39be5b0e0ebe4edcecc785634a52 /lib/dynamic_debug.c | |
| parent | b558c96ffa53f4b3dd52b774e4fb7a52982ab52b (diff) | |
| download | lwn-74df138d508eb35e8b929e165e5403cfbb46a0c5.tar.gz lwn-74df138d508eb35e8b929e165e5403cfbb46a0c5.zip | |
dynamic_debug: change verbosity at runtime
Allow changing dynamic_debug verbosity at run-time, to ease debugging
of ddebug queries as you add them, improving usability.
at boot time: dynamic_debug.verbose=1
at runtime:
root@voyage:~# echo 1 > /sys/module/dynamic_debug/parameters/verbose
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'lib/dynamic_debug.c')
| -rw-r--r-- | lib/dynamic_debug.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c index 416c0794ddd3..8c88b892ebb8 100644 --- a/lib/dynamic_debug.c +++ b/lib/dynamic_debug.c @@ -60,6 +60,7 @@ struct ddebug_iter { static DEFINE_MUTEX(ddebug_lock); static LIST_HEAD(ddebug_tables); static int verbose = 0; +module_param(verbose, int, 0644); /* Return the last part of a pathname */ static inline const char *basename(const char *path) |