diff options
author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-03-15 10:27:06 -0400 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-03-15 10:27:06 -0400 |
commit | 2d3b5fa3a39d16c880bda3cf2bd9dd6ed5a01f74 (patch) | |
tree | e20283fe2ed46aa35c8ca5fc1724ba067cd2e2f8 /lib/Kconfig.debug | |
parent | 3f17522ce461a31e7ced6311b28fcf5b8a763316 (diff) | |
parent | 7278a22143b003e9af7b9ca1b5f1c40ae4b55d98 (diff) |
Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/genesis-2.6
Diffstat (limited to 'lib/Kconfig.debug')
-rw-r--r-- | lib/Kconfig.debug | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index b520ec1f33c5..8e5ec5e1ab91 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug | |||
@@ -532,6 +532,14 @@ config LOCK_STAT | |||
532 | 532 | ||
533 | For more details, see Documentation/lockstat.txt | 533 | For more details, see Documentation/lockstat.txt |
534 | 534 | ||
535 | This also enables lock events required by "perf lock", | ||
536 | subcommand of perf. | ||
537 | If you want to use "perf lock", you also need to turn on | ||
538 | CONFIG_EVENT_TRACING. | ||
539 | |||
540 | CONFIG_LOCK_STAT defines "contended" and "acquired" lock events. | ||
541 | (CONFIG_LOCKDEP defines "acquire" and "release" events.) | ||
542 | |||
535 | config DEBUG_LOCKDEP | 543 | config DEBUG_LOCKDEP |
536 | bool "Lock dependency engine debugging" | 544 | bool "Lock dependency engine debugging" |
537 | depends on DEBUG_KERNEL && LOCKDEP | 545 | depends on DEBUG_KERNEL && LOCKDEP |