diff options
Diffstat (limited to 'lib/Kconfig.debug')
-rw-r--r-- | lib/Kconfig.debug | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 65f964e7fe78..4dc24cc13f5c 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug | |||
@@ -520,11 +520,13 @@ config LOCK_STAT | |||
520 | 520 | ||
521 | For more details, see Documentation/lockstat.txt | 521 | For more details, see Documentation/lockstat.txt |
522 | 522 | ||
523 | You can analyze lock events with "perf lock", subcommand of perf. | 523 | This also enables lock events required by "perf lock", |
524 | If you want to use "perf lock", you need to turn on CONFIG_EVENT_TRACING. | 524 | subcommand of perf. |
525 | If you want to use "perf lock", you also need to turn on | ||
526 | CONFIG_EVENT_TRACING. | ||
525 | 527 | ||
526 | CONFIG_LOCK_STAT defines "contended" and "acquired" lock events. | 528 | CONFIG_LOCK_STAT defines "contended" and "acquired" lock events. |
527 | (CONFIG_LOCKDEP defines "acquire" and "release" events.) | 529 | (CONFIG_LOCKDEP defines "acquire" and "release" events.) |
528 | 530 | ||
529 | config DEBUG_LOCKDEP | 531 | config DEBUG_LOCKDEP |
530 | bool "Lock dependency engine debugging" | 532 | bool "Lock dependency engine debugging" |