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linux/kernel/trace
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Steven Rostedt a4f18ed11a ftrace: Revert 8ab2b7efd ftrace: Remove unnecessary disabling of irqs 
Revert the commit that removed the disabling of interrupts around
the initial modifying of mcount callers to nops, and update the comment.

The original comment was outdated and stated that the interrupts were
being disabled to prevent kstop machine, which was required with the
old ftrace daemon, but was no longer the case.

What the comment failed to mention was that interrupts needed to be
disabled to keep interrupts from preempting the modifying of the code
and then executing the code that was partially modified.

Revert the commit and update the comment.

Reported-by: Richard W.M. Jones <rjones@redhat.com>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
 		2011-06-07 14:49:19 -04:00
..
Kconfig ftrace: Build without frame pointers on Microblaze 2011-04-21 09:06:24 -04:00
Makefile tracing: Fix TRACE_EVENT power tracepoint creation 2011-01-07 23:26:29 -05:00
blktrace.c block: make unplug timer trace event correspond to the schedule() unplug 2011-04-16 13:51:05 +02:00
ftrace.c ftrace: Revert 8ab2b7efd ftrace: Remove unnecessary disabling of irqs 2011-06-07 14:49:19 -04:00
power-traces.c perf: Clean up power events by introducing new, more generic ones 2011-01-04 08:16:54 +01:00
ring_buffer.c ftrace: Add internal recursive checks 2011-05-25 22:13:49 -04:00
ring_buffer_benchmark.c ring-buffer: Make benchmark handle missed events 2010-04-27 13:26:58 -04:00
trace.c Merge commit 'v2.6.39-rc7' into perf/core 2011-05-10 17:05:45 +02:00
trace.h ftrace: Add internal recursive checks 2011-05-25 22:13:49 -04:00
trace_branch.c tracing: Allow events to share their print functions 2010-05-14 14:20:32 -04:00
trace_clock.c Fix common misspellings 2011-03-31 11:26:23 -03:00
trace_entries.h Fix common misspellings 2011-03-31 11:26:23 -03:00
trace_event_perf.c tracing: New flag to allow non privileged users to use a trace event 2010-11-18 14:37:40 +01:00
trace_events.c tracing: Have event with function tracer check error return 2011-05-25 22:13:39 -04:00
trace_events_filter.c trace, filters: Initialize the match variable in process_ops() properly 2011-03-18 14:41:27 +01:00
trace_export.c tracing: Replace trace_event struct array with pointer array 2011-02-02 21:37:13 -05:00
trace_functions.c ftrace: Implement separate user function filtering 2011-05-18 15:29:50 -04:00
trace_functions_graph.c Fix common misspellings 2011-03-31 11:26:23 -03:00
trace_irqsoff.c ftrace: Implement separate user function filtering 2011-05-18 15:29:50 -04:00
trace_kdb.c kdb,ftdump: Remove reference to internal kdb include 2010-10-22 15:34:11 -05:00
trace_kprobe.c kprobes/trace: Fix kprobe selftest for gcc 4.6 2011-06-07 14:47:36 -04:00
trace_mmiotrace.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
trace_nop.c tracing/ftrace: make nop-tracer use polling wait for events on pipe 2009-03-23 09:22:15 +01:00
trace_output.c tracing: Add __print_symbolic_u64 to avoid warnings on 32bit machine 2011-05-25 22:13:44 -04:00
trace_output.h tracing: Allow events to share their print functions 2010-05-14 14:20:32 -04:00
trace_printk.c tracing: Print trace_bprintk() formats for modules too 2011-04-04 12:18:24 -04:00
trace_sched_switch.c tracing: Remove obsolete sched_switch tracer 2011-02-08 17:14:56 -05:00
trace_sched_wakeup.c ftrace: Implement separate user function filtering 2011-05-18 15:29:50 -04:00
trace_selftest.c ftrace: Add self-tests for multiple function trace users 2011-05-18 19:24:51 -04:00
trace_selftest_dynamic.c ftrace: Add self-tests for multiple function trace users 2011-05-18 19:24:51 -04:00
trace_stack.c ftrace: Implement separate user function filtering 2011-05-18 15:29:50 -04:00
trace_stat.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
trace_stat.h tracing/stat: Add stat_release() callback 2009-07-10 12:14:05 +02:00
trace_syscalls.c tracing/syscalls: Early terminate search for sys_ni_syscall 2011-02-07 21:30:14 -05:00
trace_workqueue.c jump label: Initialize workqueue tracepoints *before* they are registered 2010-09-22 16:30:03 -04:00