kernel_optimize_test/kernel/trace
Thomas Gleixner f03efe49bd bpf/tracing: Remove redundant preempt_disable() in __bpf_trace_run()
__bpf_trace_run() disables preemption around the BPF_PROG_RUN() invocation.

This is redundant because __bpf_trace_run() is invoked from a trace point
via __DO_TRACE() which already disables preemption _before_ invoking any of
the functions which are attached to a trace point.

Remove it and add a cant_sleep() check.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200224145642.847220186@linutronix.de
2020-02-24 16:12:20 -08:00
..
blktrace.c tracing: Make struct ring_buffer less ambiguous 2020-01-13 13:19:38 -05:00
bpf_trace.c bpf/tracing: Remove redundant preempt_disable() in __bpf_trace_run() 2020-02-24 16:12:20 -08:00
fgraph.c tracing: Define MCOUNT_INSN_SIZE when not defined without direct calls 2020-01-02 21:56:44 -05:00
ftrace_internal.h
ftrace.c ftrace: Protect ftrace_graph_hash with ftrace_sync 2020-02-05 17:16:42 -05:00
Kconfig tracing: Move tracing selftests to bottom of menu 2020-01-30 09:46:29 -05:00
kprobe_event_gen_test.c tracing: Add kprobe event command generation test module 2020-01-30 09:46:28 -05:00
Makefile tracing: Add kprobe event command generation test module 2020-01-30 09:46:28 -05:00
power-traces.c
preemptirq_delay_test.c preemptirq_delay_test: Add the burst feature and a sysfs trigger 2019-11-13 09:37:28 -05:00
ring_buffer_benchmark.c tracing: Make struct ring_buffer less ambiguous 2020-01-13 13:19:38 -05:00
ring_buffer.c ring-buffer: Remove abandoned macro RB_MISSED_FLAGS 2020-01-21 18:38:02 -05:00
rpm-traces.c
synth_event_gen_test.c tracing: Add synth event generation test module 2020-01-30 09:46:28 -05:00
trace_benchmark.c trace: Use pr_warn instead of pr_warning 2019-10-18 15:01:57 +02:00
trace_benchmark.h
trace_boot.c tracing: Change trace_boot to use synth_event interface 2020-01-31 12:59:26 -05:00
trace_branch.c tracing: Make struct ring_buffer less ambiguous 2020-01-13 13:19:38 -05:00
trace_clock.c
trace_dynevent.c tracing: Use seq_buf for building dynevent_cmd string 2020-02-01 13:10:15 -05:00
trace_dynevent.h tracing: Remove check_arg() callbacks from dynevent args 2020-02-01 13:09:23 -05:00
trace_entries.h Tracing updates: 2020-02-06 07:12:11 +00:00
trace_event_perf.c Merge branch 'perf/urgent' into perf/core, to pick up fixes 2019-10-28 12:38:26 +01:00
trace_events_filter_test.h
trace_events_filter.c tracing: Avoid memory leak in process_system_preds() 2019-12-19 18:24:17 -05:00
trace_events_hist.c Various fixes: 2020-02-11 16:39:18 -08:00
trace_events_inject.c tracing: Initialize val to zero in parse_entry of inject code 2020-01-02 19:04:57 -05:00
trace_events_trigger.c trigger_next should increase position index 2020-01-30 09:46:27 -05:00
trace_events.c Tracing updates: 2020-02-06 07:12:11 +00:00
trace_export.c Linux 5.5-rc1 2019-12-10 10:11:00 +01:00
trace_functions_graph.c tracing: Make struct ring_buffer less ambiguous 2020-01-13 13:19:38 -05:00
trace_functions.c tracing: Rename trace_buffer to array_buffer 2020-01-13 13:19:38 -05:00
trace_hwlat.c Tracing updates: 2020-02-06 07:12:11 +00:00
trace_irqsoff.c tracing: Rename trace_buffer to array_buffer 2020-01-13 13:19:38 -05:00
trace_kdb.c tracing: Rename trace_buffer to array_buffer 2020-01-13 13:19:38 -05:00
trace_kprobe_selftest.c
trace_kprobe_selftest.h
trace_kprobe.c Various fixes: 2020-02-11 16:39:18 -08:00
trace_mmiotrace.c tracing: Make struct ring_buffer less ambiguous 2020-01-13 13:19:38 -05:00
trace_nop.c
trace_output.c tracing: Rename trace_buffer to array_buffer 2020-01-13 13:19:38 -05:00
trace_output.h
trace_preemptirq.c
trace_printk.c tracing: Add locked_down checks to the open calls of files created for tracefs 2019-10-12 20:48:06 -04:00
trace_probe_tmpl.h
trace_probe.c tracing/kprobes: Have uname use __get_str() in print_fmt 2020-01-27 10:56:02 -05:00
trace_probe.h tracing/uprobe: Fix to make trace_uprobe_filter alignment safe 2020-01-22 07:09:20 -05:00
trace_sched_switch.c tracing: Fix sched switch start/stop refcount racy updates 2020-01-30 09:46:10 -05:00
trace_sched_wakeup.c tracing: Make struct ring_buffer less ambiguous 2020-01-13 13:19:38 -05:00
trace_selftest_dynamic.c
trace_selftest.c tracing: Rename trace_buffer to array_buffer 2020-01-13 13:19:38 -05:00
trace_seq.c tracing: Remove unused TRACE_SEQ_BUF_USED 2020-01-21 18:39:54 -05:00
trace_stack.c tracing: Have stack tracer compile when MCOUNT_INSN_SIZE is not defined 2020-01-02 22:04:07 -05:00
trace_stat.c tracing: Fix tracing_stat return values in error handling paths 2020-01-24 18:06:48 -05:00
trace_stat.h tracing: Use generic type for comparator function 2019-11-14 13:15:11 -05:00
trace_syscalls.c Tracing updates: 2020-02-06 07:12:11 +00:00
trace_uprobe.c Tracing updates: 2020-02-06 07:12:11 +00:00
trace.c Tracing updates: 2020-02-06 07:12:11 +00:00
trace.h Tracing updates: 2020-02-06 07:12:11 +00:00
tracing_map.c tracing: Have the histogram compare functions convert to u64 first 2019-12-19 18:26:00 -05:00
tracing_map.h