Vaibhav Nagarnaik 8e49f418c9 ring-buffer: Check for uninitialized cpu buffer before resizing ... With a system where, num_present_cpus < num_possible_cpus, even if all CPUs are online, non-present CPUs don't have per_cpu buffers allocated. If per_cpu/<cpu>/buffer_size_kb is modified for such a CPU, it can cause a panic due to NULL dereference in ring_buffer_resize(). To fix this, resize operation is allowed only if the per-cpu buffer has been initialized. Link: http://lkml.kernel.org/r/1349912427-6486-1-git-send-email-vnagarnaik@google.com Cc: stable@vger.kernel.org # 3.5+ Signed-off-by: Vaibhav Nagarnaik <vnagarnaik@google.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>		2012-10-11 12:21:48 -04:00
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blktrace.c	simple_open: automatically convert to simple_open()	2012-04-05 15:25:50 -07:00
ftrace.c	ftrace: add ftrace_set_filter_ip() for address based filter	2012-07-31 10:29:55 -04:00
Kconfig	trace: Stop compiling in trace_clock unconditionally	2012-09-13 22:52:08 -04:00
Makefile	trace: Stop compiling in trace_clock unconditionally	2012-09-13 22:52:08 -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_benchmark.c	tracing: Use NUMA allocation for per-cpu ring buffer pages	2011-06-14 22:04:39 -04:00
ring_buffer.c	ring-buffer: Check for uninitialized cpu buffer before resizing	2012-10-11 12:21:48 -04:00
rpm-traces.c	PM / Runtime: Introduce trace points for tracing rpm_* functions	2011-09-27 22:53:27 +02:00
trace_branch.c	tracing: Allow events to share their print functions	2010-05-14 14:20:32 -04:00
trace_clock.c	tracing: Add a counter clock for those that do not trust clocks	2011-09-19 11:35:58 -04:00
trace_entries.h	Merge branch 'tip/perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into perf/urgent	2012-03-24 08:19:09 +01:00
trace_event_perf.c	perf/core improvements and fixes:	2012-08-21 11:27:00 +02:00
trace_events_filter_test.h	tracing/filter: Add startup tests for events filter	2011-08-19 14:35:59 -04:00
trace_events_filter.c	tracing/filter: Add missing initialization	2012-08-07 09:42:47 -04:00
trace_events.c	trace: Move trace event enable from fs_initcall to core_initcall	2012-09-24 14:13:02 -04:00
trace_export.c	tracing: Do not enable function event with enable	2012-05-10 15:55:43 -04:00
trace_functions_graph.c	ftrace: Do not test frame pointers if -mfentry is used	2012-08-23 11:25:29 -04:00
trace_functions.c	perf/core improvements and fixes:	2012-08-21 11:27:00 +02:00
trace_irqsoff.c	ftrace: Add default recursion protection for function tracing	2012-07-31 10:29:52 -04:00
trace_kdb.c	kdb,ftdump: Remove reference to internal kdb include	2010-10-22 15:34:11 -05:00
trace_kprobe.c	perf/trace: Add ability to set a target task for events	2012-07-31 17:02:05 +02:00
trace_mmiotrace.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
trace_nop.c
trace_output.c	tracing: Register the ftrace internal events during early boot	2012-06-14 15:22:14 -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: Add percpu buffers for trace_printk()	2012-04-23 21:15:55 -04:00
trace_probe.c	tracing: Provide trace events interface for uprobes	2012-05-07 14:30:17 +02:00
trace_probe.h	tracing: Provide trace events interface for uprobes	2012-05-07 14:30:17 +02:00
trace_sched_switch.c	tracing: Remove obsolete sched_switch tracer	2011-02-08 17:14:56 -05:00
trace_sched_wakeup.c	ftrace: Add default recursion protection for function tracing	2012-07-31 10:29:52 -04:00
trace_selftest_dynamic.c	ftrace: Add self-tests for multiple function trace users	2011-05-18 19:24:51 -04:00
trace_selftest.c	tracing: Fix wakeup_rt self test on virtual machines	2012-08-07 09:40:51 -04:00
trace_stack.c	ftrace: Add default recursion protection for function tracing	2012-07-31 10:29:52 -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
trace_syscalls.c	trace: Move trace event enable from fs_initcall to core_initcall	2012-09-24 14:13:02 -04:00
trace_uprobe.c	perf/trace: Add ability to set a target task for events	2012-07-31 17:02:05 +02:00
trace.c	tracing: Add an option for disabling markers	2012-09-24 14:10:44 -04:00
trace.h	tracing: Add an option for disabling markers	2012-09-24 14:10:44 -04:00