Messages in this thread Patch in this message | | | From | Frederic Weisbecker <> | Subject | [PATCH 2/2 v3] tracing/lock: provide lock_acquired event support for dynamic size string | Date | Sun, 19 Apr 2009 07:01:35 +0200 |
| |
Now that we can support the dynamic sized string, make the lock tracing able to use it, making it safe against modules removal and consuming the right amount of memory needed for each lock name
Changes in v2: adapt to the __ending_string() updates and the opening_string() removal.
[ Impact: protect against module removal ]
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> --- include/trace/events/lockdep.h | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/trace/events/lockdep.h b/include/trace/events/lockdep.h index 45e326b..3ca315c 100644 --- a/include/trace/events/lockdep.h +++ b/include/trace/events/lockdep.h @@ -38,16 +38,16 @@ TRACE_EVENT(lock_acquired, TP_ARGS(lock, ip, waittime), TP_STRUCT__entry( - __field(const char *, name) + __string(name, lock->name) __field(unsigned long, wait_usec) __field(unsigned long, wait_nsec_rem) ), TP_fast_assign( - __entry->name = lock->name; + __assign_str(name, lock->name); __entry->wait_nsec_rem = do_div(waittime, NSEC_PER_USEC); __entry->wait_usec = (unsigned long) waittime; ), - TP_printk("%s (%lu.%03lu us)", __entry->name, __entry->wait_usec, + TP_printk("%s (%lu.%03lu us)", __get_str(name), __entry->wait_usec, __entry->wait_nsec_rem) ); -- 1.6.1
| |