Mark-PK Tsai
5b9cdc5947
tracing: Avoid adding tracer option before update_tracer_options ...
[ Upstream commit ef9188bcc6ca1d8a2ad83e826b548e6820721061 ]
To prepare for support asynchronous tracer_init_tracefs initcall,
avoid calling create_trace_option_files before __update_tracer_options.
Otherwise, create_trace_option_files will show warning because
some tracers in trace_types list are already in tr->topts.
For example, hwlat_tracer call register_tracer in late_initcall,
and global_trace.dir is already created in tracing_init_dentry,
hwlat_tracer will be put into tr->topts.
Then if the __update_tracer_options is executed after hwlat_tracer
registered, create_trace_option_files find that hwlat_tracer is
already in tr->topts.
Link: https://lkml.kernel.org/r/20220426122407.17042-2-mark-pk.tsai@mediatek.com
Link: https://lore.kernel.org/lkml/20220322133339.GA32582@xsang-OptiPlex-9020/
Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Mark-PK Tsai <mark-pk.tsai@mediatek.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-06-14 16:52:38 +02:00
blktrace: Fix uaf in blk_trace access after removing by sysfs
2021-10-06 10:23:40 +02:00
bpf: fix check of allowed specifiers in bpf_trace_printk
2018-12-17 09:38:33 +01:00
tracing: Have all levels of checks prevent recursion
2021-10-27 09:34:01 +02:00
Stop the ad-hoc games with -Wno-maybe-initialized
2020-05-20 08:15:37 +02:00
Disable the __builtin_return_address() warning globally after all
2016-10-12 10:23:41 -07:00
cpufreq: schedutil: New governor based on scheduler utilization data
2016-04-02 01:09:12 +02:00
tracing: Fix bug in rb_per_cpu_empty() that might cause deadloop.
2021-07-28 09:14:28 +02:00
tracing: Avoid adding tracer option before update_tracer_options
2022-06-14 16:52:38 +02:00
tracing: Fix pid filtering when triggers are attached
2021-12-08 08:45:03 +01:00
tracing: Do no increment trace_clock_global() by one
2021-06-30 08:49:17 -04:00
tracing: Set kernel_stack's caller size properly
2020-10-01 20:40:05 +02:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2016-05-17 16:26:30 -07:00
tracing: Check pid filtering when creating events
2021-12-08 08:45:03 +01:00
tracing: Fix regex_match_front() to not over compare the test string
2018-05-16 10:08:43 +02:00
tracing: Do not reference char * as a string in histograms
2021-07-20 16:21:11 +02:00
tracing: Fix event trigger to accept redundant spaces
2020-06-30 15:38:45 -04:00
tracing: Have all levels of checks prevent recursion
2021-10-27 09:34:01 +02:00
tracing: Fix missing return symbol in function_graph output
2018-07-11 16:26:43 +02:00
tracing/hwlat: Honor the tracing_cpumask
2020-08-26 10:29:03 +02:00
tracing: Silence GCC 9 array bounds warning
2019-07-10 09:55:28 +02:00
tracing: Quiet gcc warning about maybe unused link variable
2018-08-03 07:55:12 +02:00
tracing: Expose CPU physical addresses (resource values) for PCI devices
2016-06-20 09:54:22 -04:00
tracing: Add NMI tracing in hwlat detector
2016-09-02 12:47:55 -04:00
tracing: Handle NULL formats in hold_module_trace_bprintk_format()
2016-06-20 09:46:12 -04:00
tracing: probeevent: Fix to support minus offset from symbol
2018-03-28 18:39:23 +02:00
tracing: probeevent: Fix to support minus offset from symbol
2018-03-28 18:39:23 +02:00
kernel/trace: Fix do not unregister tracepoints when register sched_migrate_task fail
2020-01-14 20:04:26 +01:00
ftrace: Handle tracing when switching between context
2020-11-10 10:24:02 +01:00
tracing: Have stack tracer compile when MCOUNT_INSN_SIZE is not defined
2020-01-14 20:04:26 +01:00
tracing: Fix very unlikely race of registering two stat tracers
2020-02-28 15:42:21 +01:00
tracing/syscalls: fix multiline in error message text
2016-09-29 10:25:23 +02:00
tracing/uprobes: Fix output for multiple string arguments
2019-02-20 10:18:32 +01:00
tracing: Fix a kmemleak false positive in tracing_map
2021-12-22 09:05:13 +01:00
tracing: Update some tracing_map constants and comments
2016-04-19 12:16:06 -04:00
5b9cdc5947