diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2011-01-25 21:54:50 +0100 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2011-03-02 00:02:39 +0100 |
| commit | f51b452bed4ae5c20e1f8a790e4ed8663d909a40 (patch) | |
| tree | 3c028a2cb74253d74cf4ed15b2900531217cb6b6 | |
| parent | 4688a066ecf60086ea82f68edb3b036b567d2c08 (diff) | |
tracing: don't trace the BKL
No reason to trace it when the last user is gone.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
| -rw-r--r-- | include/trace/events/bkl.h | 61 | ||||
| -rw-r--r-- | lib/kernel_lock.c | 7 |
2 files changed, 0 insertions, 68 deletions
diff --git a/include/trace/events/bkl.h b/include/trace/events/bkl.h deleted file mode 100644 index 1af72dc24278..000000000000 --- a/include/trace/events/bkl.h +++ /dev/null @@ -1,61 +0,0 @@ -#undef TRACE_SYSTEM -#define TRACE_SYSTEM bkl - -#if !defined(_TRACE_BKL_H) || defined(TRACE_HEADER_MULTI_READ) -#define _TRACE_BKL_H - -#include <linux/tracepoint.h> - -TRACE_EVENT(lock_kernel, - - TP_PROTO(const char *func, const char *file, int line), - - TP_ARGS(func, file, line), - - TP_STRUCT__entry( - __field( int, depth ) - __field_ext( const char *, func, FILTER_PTR_STRING ) - __field_ext( const char *, file, FILTER_PTR_STRING ) - __field( int, line ) - ), - - TP_fast_assign( - /* We want to record the lock_depth after lock is acquired */ - __entry->depth = current->lock_depth + 1; - __entry->func = func; - __entry->file = file; - __entry->line = line; - ), - - TP_printk("depth=%d file:line=%s:%d func=%s()", __entry->depth, - __entry->file, __entry->line, __entry->func) -); - -TRACE_EVENT(unlock_kernel, - - TP_PROTO(const char *func, const char *file, int line), - - TP_ARGS(func, file, line), - - TP_STRUCT__entry( - __field(int, depth ) - __field(const char *, func ) - __field(const char *, file ) - __field(int, line ) - ), - - TP_fast_assign( - __entry->depth = current->lock_depth; - __entry->func = func; - __entry->file = file; - __entry->line = line; - ), - - TP_printk("depth=%d file:line=%s:%d func=%s()", __entry->depth, - __entry->file, __entry->line, __entry->func) -); - -#endif /* _TRACE_BKL_H */ - -/* This part must be outside protection */ -#include <trace/define_trace.h> diff --git a/lib/kernel_lock.c b/lib/kernel_lock.c index b135d04aa48a..d80e12265862 100644 --- a/lib/kernel_lock.c +++ b/lib/kernel_lock.c @@ -10,9 +10,6 @@ #include <linux/semaphore.h> #include <linux/smp_lock.h> -#define CREATE_TRACE_POINTS -#include <trace/events/bkl.h> - /* * The 'big kernel lock' * @@ -120,8 +117,6 @@ void __lockfunc _lock_kernel(const char *func, const char *file, int line) { int depth = current->lock_depth + 1; - trace_lock_kernel(func, file, line); - if (likely(!depth)) { might_sleep(); __lock_kernel(); @@ -134,8 +129,6 @@ void __lockfunc _unlock_kernel(const char *func, const char *file, int line) BUG_ON(current->lock_depth < 0); if (likely(--current->lock_depth < 0)) __unlock_kernel(); - - trace_unlock_kernel(func, file, line); } EXPORT_SYMBOL(_lock_kernel); |