mirror/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
Files
01b2a52171735c6eea80ee2f355f32bea6c41418
linux/kernel/trace
History
Steven Rostedt (Google) 01b2a52171 tracing: Add ioctl() to force ring buffer waiters to wake up 
If a process is waiting on the ring buffer for data, there currently isn't
a clean way to force it to wake up. Add an ioctl call that will force any
tasks that are waiting on the trace_pipe_raw file to wake up.

Link: https://lkml.kernel.org/r/20220929095029.117f913f@gandalf.local.home

Cc: stable@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Fixes: e30f53aad2 ("tracing: Do not busy wait in buffer splice")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-09-29 10:17:18 -04:00
..
rv
rv/monitor: Add __init/__exit annotations to module init/exit funcs
2022-09-26 18:10:51 -04:00
blktrace.c
blktrace: Fix the blk_fill_rwbs() kernel-doc header
2022-07-15 13:10:04 -06:00
bpf_trace.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-06-23 12:33:24 -07:00
bpf_trace.h
…
error_report-traces.c
…
fgraph.c
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
2022-06-03 14:05:34 -07:00
fprobe.c
fprobe: Resolve symbols with ftrace_lookup_symbols
2022-05-10 14:42:06 -07:00
ftrace_internal.h
…
ftrace.c
ftrace: Fix recursive locking direct_mutex in ftrace_modify_direct_caller
2022-09-27 14:48:27 -04:00
Kconfig
rv: Add Runtime Verification (RV) interface
2022-07-30 14:01:28 -04:00
kprobe_event_gen_test.c
tracing: kprobe: Make gen test module work in arm and riscv
2022-09-26 16:04:47 -04:00
Makefile
rv: Add Runtime Verification (RV) interface
2022-07-30 14:01:28 -04:00
pid_list.c
tracing: Cleanup double word in comment
2022-04-26 17:58:50 -04:00
pid_list.h
…
power-traces.c
…
preemptirq_delay_test.c
…
rethook.c
rethook: Reject getting a rethook if RCU is not watching
2022-06-17 21:53:35 +02:00
ring_buffer_benchmark.c
…
ring_buffer.c
ring-buffer: Add ring_buffer_wake_waiters()
2022-09-28 20:27:43 -04:00
rpm-traces.c
…
synth_event_gen_test.c
…
trace_benchmark.c
tracing: Add numeric delta time to the trace event benchmark
2022-09-26 13:01:09 -04:00
trace_benchmark.h
tracing: Add numeric delta time to the trace event benchmark
2022-09-26 13:01:09 -04:00
trace_boot.c
tracing: Initialize integer variable to prevent garbage return value
2022-05-26 21:13:00 -04:00
trace_branch.c
…
trace_clock.c
…
trace_dynevent.c
tracing: Auto generate event name when creating a group of events
2022-07-24 19:11:17 -04:00
trace_dynevent.h
…
trace_entries.h
…
trace_eprobe.c
tracing/eprobe: Fix alloc event dir failed when event name no set
2022-09-27 14:48:26 -04:00
trace_event_perf.c
tracing/perf: Fix double put of trace event when init fails
2022-08-21 15:56:07 -04:00
trace_events_filter_test.h
…
trace_events_filter.c
tracing/filter: Call filter predicate functions directly via a switch statement
2022-09-26 13:01:10 -04:00
trace_events_hist.c
tracing/hist: Call hist functions directly via a switch statement
2022-09-26 13:01:10 -04:00
trace_events_inject.c
tracing: Support __rel_loc relative dynamic data location attribute
2021-12-06 15:37:21 -05:00
trace_events_synth.c
tracing: Fix strncpy warning in trace_events_synth.c
2022-03-11 11:49:24 -05:00
trace_events_trigger.c
tracing: Fix to check event_mutex is held while accessing trigger list
2022-09-06 22:26:00 -04:00
trace_events_user.c
tracing/user_events: Fix syntax errors in comments
2022-07-12 17:35:11 -04:00
trace_events.c
tracing: Have filter accept "common_cpu" to be consistent
2022-08-21 15:56:08 -04:00
trace_export.c
…
trace_functions_graph.c
tracing: in_irq() cleanup
2021-10-13 18:19:41 -04:00
trace_functions.c
ftrace: disable preemption when recursion locked
2021-10-27 11:21:49 -04:00
trace_hwlat.c
trace/hwlat: make use of the helper function kthread_run_on_cpu()
2022-01-15 16:30:24 +02:00
trace_irqsoff.c
…
trace_kdb.c
…
trace_kprobe_selftest.c
…
trace_kprobe_selftest.h
…
trace_kprobe.c
tracing: Auto generate event name when creating a group of events
2022-07-24 19:11:17 -04:00
trace_mmiotrace.c
…
trace_nop.c
…
trace_osnoise.c
tracing/osnoise: Fix possible recursive locking in stop_per_cpu_kthreads
2022-09-26 16:05:18 -04:00
trace_output.c
tracing: Remove usage of list iterator after the loop body
2022-04-27 17:19:30 -04:00
trace_output.h
…
trace_preemptirq.c
tracing: hold caller_addr to hardirq_{enable,disable}_ip
2022-09-06 22:26:00 -04:00
trace_printk.c
…
trace_probe_tmpl.h
…
trace_probe.c
tracing/probes: Have kprobes and uprobes use $COMM too
2022-08-21 15:56:08 -04:00
trace_probe.h
tracing/eprobe: Add eprobe filter support
2022-09-26 13:01:08 -04:00
trace_recursion_record.c
tracing: Use trace_create_file() to simplify creation of tracefs entries
2022-05-26 21:12:52 -04:00
trace_sched_switch.c
sched/tracing: Append prev_state to tp args instead
2022-05-12 00:37:11 +02:00
trace_sched_wakeup.c
sched/tracing: Append prev_state to tp args instead
2022-05-12 00:37:11 +02:00
trace_selftest_dynamic.c
…
trace_selftest.c
tracing: Reset the function filter after completing trampoline/graph selftest
2022-05-25 16:57:37 -04:00
trace_seq.c
…
trace_stack.c
…
trace_stat.c
…
trace_stat.h
…
trace_synth.h
…
trace_syscalls.c
tracing: Make tp_printk work on syscall tracepoints
2022-04-26 17:58:52 -04:00
trace_uprobe.c
Merge tag 'trace-v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
2022-08-05 09:41:12 -07:00
trace.c
tracing: Add ioctl() to force ring buffer waiters to wake up
2022-09-29 10:17:18 -04:00
trace.h
tracing: Move struct filter_pred into trace_events_filter.c
2022-09-26 13:01:10 -04:00
tracing_map.c
tracing: Fix tracing_map_sort_entries() kernel-doc comment
2022-04-26 17:58:51 -04:00
tracing_map.h
…