kevin/linux
1
Fork 0
Code
637e7e8641
linux/kernel/trace
History
Steven Rostedt 637e7e8641 tracing: add lock depth to entries 
This patch adds the lock depth of the big kernel lock to the generic
entry header. This way we can see the depth of the lock and help
in removing the BKL.

Example:

 #                  _------=> CPU#
 #                 / _-----=> irqs-off
 #                | / _----=> need-resched
 #                || / _---=> hardirq/softirq
 #                ||| / _--=> preempt-depth
 #                |||| /_--=> lock-depth
 #                |||||/     delay
 #  cmd     pid   |||||| time  |   caller
 #     \   /      ||||||   \   |   /
   <idle>-0       2.N..3 5902255250us+: lock_acquire: read rcu_read_lock
   <idle>-0       2.N..3 5902255253us+: lock_release: rcu_read_lock
   <idle>-0       2dN..3 5902255257us+: lock_acquire: xtime_lock
   <idle>-0       2dN..4 5902255259us : lock_acquire: clocksource_lock
   <idle>-0       2dN..4 5902255261us+: lock_release: clocksource_lock

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-09-11 13:55:35 -04:00
..
blktrace.c Merge commit 'v2.6.31-rc9' into tracing/core 2009-09-06 06:11:42 +02:00
ftrace.c Merge commit 'v2.6.31-rc9' into tracing/core 2009-09-06 06:11:42 +02:00
Kconfig ring-buffer: only enable ring_buffer_swap_cpu when needed 2009-09-04 19:42:22 -04:00
kmemtrace.c tracing: remove users of tracing_reset 2009-09-04 12:12:39 -04:00
Makefile tracing/events: convert block trace points to TRACE_EVENT() 2009-06-09 12:34:23 -04:00
ring_buffer_benchmark.c ring-buffer: have benchmark test print to trace buffer 2009-06-17 17:01:09 -04:00
ring_buffer.c ring-buffer: consolidate interface of rb_buffer_peek() 2009-09-09 23:54:02 -04:00
trace_boot.c tracing: pass around ring buffer instead of tracer 2009-09-04 18:59:39 -04:00
trace_branch.c Merge branch 'linus' into tracing/core 2009-05-07 11:17:34 +02:00
trace_clock.c
trace_event_profile.c ftrace: Fix perf-tracepoint OOPS 2009-08-06 06:26:09 +02:00
trace_event_types.h trace_export: Repair missed fields 2009-06-26 20:48:40 +02:00
trace_events_filter.c tracing: move PRED macros to trace_events_filter.c 2009-09-09 23:54:11 -04:00
trace_events.c tracing: add lock depth to entries 2009-09-11 13:55:35 -04:00
trace_export.c tracing/filters: Defer pred allocation 2009-08-31 10:58:08 +02:00
trace_functions_graph.c tracing: add lock depth to entries 2009-09-11 13:55:35 -04:00
trace_functions.c Merge branch 'linus' into tracing/core 2009-07-18 12:20:01 +02:00
trace_hw_branches.c Merge branch 'tracing/hw-branch-tracing' into tracing/core 2009-05-07 13:36:22 +02:00
trace_irqsoff.c tracing: use timestamp to determine start of latency traces 2009-09-04 18:44:22 -04:00
trace_mmiotrace.c tracing: pass around ring buffer instead of tracer 2009-09-04 18:59:39 -04:00
trace_nop.c
trace_output.c tracing: add lock depth to entries 2009-09-11 13:55:35 -04:00
trace_output.h tracing: add protection around module events unload 2009-06-09 17:29:07 -04:00
trace_power.c tracing: pass around ring buffer instead of tracer 2009-09-04 18:59:39 -04:00
trace_printk.c tracing: show proper address for trace-printk format 2009-07-23 10:07:17 -04:00
trace_sched_switch.c tracing: pass around ring buffer instead of tracer 2009-09-04 18:59:39 -04:00
trace_sched_wakeup.c tracing: do not grab lock in wakeup latency function tracing 2009-09-09 23:54:04 -04:00
trace_selftest_dynamic.c
trace_selftest.c tracing/function-graph-tracer: Move graph event insertion helpers in the graph tracer file 2009-08-06 07:28:06 +02:00
trace_stack.c trace_stack: Simplify seqfile code 2009-08-17 11:25:09 +02:00
trace_stat.c trace_stat: Fix missing entry in stat file 2009-08-17 11:25:09 +02:00
trace_stat.h tracing/stat: Add stat_release() callback 2009-07-10 12:14:05 +02:00
trace_syscalls.c tracing: pass around ring buffer instead of tracer 2009-09-04 18:59:39 -04:00
trace_sysprof.c Merge branch 'timers-for-linus-migration' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-15 10:06:19 -07:00
trace_workqueue.c tracing/workqueues: Add refcnt to struct cpu_workqueue_stats 2009-07-10 12:14:07 +02:00
trace.c tracing: add lock depth to entries 2009-09-11 13:55:35 -04:00
trace.h tracing: move tgid out of generic entry and into userstack 2009-09-11 11:36:23 -04:00