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Steven Rostedt (Google) 2475de2bc0 tracing: Wake up ring buffer waiters on closing of the file 
commit f3ddb74ad0790030c9592229fb14d8c451f4e9a8 upstream.

When the file that represents the ring buffer is closed, there may be
waiters waiting on more input from the ring buffer. Call
ring_buffer_wake_waiters() to wake up any waiters when the file is
closed.

Link: https://lkml.kernel.org/r/20220927231825.182416969@goodmis.org

Cc: stable@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Fixes: e30f53aad2202 ("tracing: Do not busy wait in buffer splice")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 12:34:31 +02:00
..
blktrace.c
blktrace: Trace remapped requests correctly
2022-08-17 14:23:13 +02:00
bpf_trace.c
bpf: Add MEM_RDONLY for helper args that are pointers to rdonly mem.
2022-05-01 17:22:26 +02:00
bpf_trace.h
…
error_report-traces.c
tracing: add error_report_end trace point
2021-02-26 09:41:02 -08:00
fgraph.c
tracing: Fix various typos in comments
2021-03-23 14:08:18 -04:00
ftrace_internal.h
…
ftrace.c
ftrace: Properly unset FTRACE_HASH_FL_MOD
2022-10-26 12:34:30 +02:00
Kconfig
tracing: Simplify the Kconfig dependency of FTRACE
2021-08-16 11:37:20 -04:00
kprobe_event_gen_test.c
…
Makefile
tracing: Place trace_pid_list logic into abstract functions
2022-07-29 17:25:29 +02:00
pid_list.c
tracing: Place trace_pid_list logic into abstract functions
2022-07-29 17:25:29 +02:00
pid_list.h
tracing: Place trace_pid_list logic into abstract functions
2022-07-29 17:25:29 +02:00
power-traces.c
…
preemptirq_delay_test.c
kernel: trace: preemptirq_delay_test: add cpu affinity
2021-02-02 17:02:07 -05:00
ring_buffer_benchmark.c
sched,tracing: Convert to sched_set_fifo()
2020-07-29 11:43:53 +02:00
ring_buffer.c
ring-buffer: Fix race between reset page and reading page
2022-10-26 12:34:31 +02:00
rpm-traces.c
…
synth_event_gen_test.c
tracing: Fix various typos in comments
2021-03-23 14:08:18 -04:00
trace_benchmark.c
tracing: Fix some typos in comments
2020-11-10 20:39:40 -05:00
trace_benchmark.h
…
trace_boot.c
tracing: Initialize integer variable to prevent garbage return value
2022-06-09 10:23:21 +02:00
trace_branch.c
tracing: Merge irqflags + preempt counter.
2021-02-02 17:02:06 -05:00
trace_clock.c
tracing: Do no increment trace_clock_global() by one
2021-06-18 09:10:00 -04:00
trace_dynevent.c
tracing: Disable "other" permission bits in the tracefs files
2021-11-18 19:16:15 +01:00
trace_dynevent.h
tracing: Add DYNAMIC flag for dynamic events
2021-08-18 18:10:32 -04:00
trace_entries.h
trace: Add timerlat tracer
2021-06-25 19:57:24 -04:00
trace_eprobe.c
tracing/eprobes: Fix reading of string fields
2022-08-25 11:40:28 +02:00
trace_event_perf.c
tracing/perf: Fix double put of trace event when init fails
2022-08-25 11:39:57 +02:00
trace_events_filter_test.h
…
trace_events_filter.c
tracing: Add ustring operation to filtering string pointers
2022-03-08 19:12:33 +01:00
trace_events_hist.c
tracing/histograms: Fix memory leak problem
2022-07-21 21:24:11 +02:00
trace_events_inject.c
tracing: Merge irqflags + preempt counter.
2021-02-02 17:02:06 -05:00
trace_events_synth.c
tracing: Do not let synth_events block other dyn_event systems during create
2022-03-08 19:12:35 +01:00
trace_events_trigger.c
tracing: Fix to check event_mutex is held while accessing trigger list
2022-09-15 11:30:02 +02:00
trace_events.c
tracing: Have filter accept "common_cpu" to be consistent
2022-08-25 11:39:58 +02:00
trace_export.c
tracing: Fix some typos in comments
2020-11-10 20:39:40 -05:00
trace_functions_graph.c
tracing: Disable "other" permission bits in the tracefs files
2021-11-18 19:16:15 +01:00
trace_functions.c
tracing: Add "func_no_repeats" option for function tracing
2021-04-15 14:50:02 -04:00
trace_hwlat.c
tracing: Disable "other" permission bits in the tracefs files
2021-11-18 19:16:15 +01:00
trace_irqsoff.c
tracing: Merge irqflags + preempt counter.
2021-02-02 17:02:06 -05:00
trace_kdb.c
kdb: Rename members of struct kdbtab_t
2021-07-27 17:05:06 +01:00
trace_kprobe_selftest.c
…
trace_kprobe_selftest.h
…
trace_kprobe.c
tracing/kprobes: Check whether get_kretprobe() returns NULL in kretprobe_dispatcher()
2022-06-29 09:03:20 +02:00
trace_mmiotrace.c
tracing: Remove definition of DEBUG in trace_mmiotrace.c
2021-02-02 17:02:07 -05:00
trace_nop.c
…
trace_osnoise.c
tracing/osnoise: Force quiescent states while tracing
2022-03-16 14:23:43 +01:00
trace_output.c
tracing: Add migrate-disabled counter to tracing output.
2021-09-03 19:42:35 -04:00
trace_output.h
ftrace: Add recording of functions that caused recursion
2020-11-06 08:42:26 -05:00
trace_preemptirq.c
tracing: hold caller_addr to hardirq_{enable,disable}_ip
2022-09-20 12:39:43 +02:00
trace_printk.c
tracing: Disable "other" permission bits in the tracefs files
2021-11-18 19:16:15 +01:00
trace_probe_tmpl.h
tracing/probes: Have process_fetch_insn() take a void * instead of pt_regs
2021-08-19 09:09:03 -04:00
trace_probe.c
tracing/probes: Have kprobes and uprobes use $COMM too
2022-08-25 11:39:58 +02:00
trace_probe.h
tracing: Add a probe that attaches to trace events
2021-08-20 14:18:40 -04:00
trace_recursion_record.c
tracing: Disable "other" permission bits in the tracefs files
2021-11-18 19:16:15 +01:00
trace_sched_switch.c
…
trace_sched_wakeup.c
tracing: Change variable type as bool for clean-up
2021-06-30 09:19:14 -04:00
trace_selftest_dynamic.c
…
trace_selftest.c
tracing: Fix various typos in comments
2021-03-23 14:08:18 -04:00
trace_seq.c
tracing: Fix various typos in comments
2021-03-23 14:08:18 -04:00
trace_stack.c
tracing: Disable "other" permission bits in the tracefs files
2021-11-18 19:16:15 +01:00
trace_stat.c
tracing: Disable "other" permission bits in the tracefs files
2021-11-18 19:16:15 +01:00
trace_stat.h
…
trace_synth.h
tracing: synth events: increase max fields count
2021-09-08 15:29:16 -04:00
trace_syscalls.c
tracing: Make tp_printk work on syscall tracepoints
2022-06-14 18:36:14 +02:00
trace_uprobe.c
tracing/uprobes: Check the return value of kstrdup() for tu->filename
2022-03-08 19:12:38 +01:00
trace.c
tracing: Wake up ring buffer waiters on closing of the file
2022-10-26 12:34:31 +02:00
trace.h
tracing: Add '__rel_loc' using trace event macros
2022-08-17 14:24:26 +02:00
tracing_map.c
tracing: Fix a kmemleak false positive in tracing_map
2021-12-17 10:30:16 +01:00
tracing_map.h
tracing: Fix some typos in comments
2020-11-10 20:39:40 -05:00