iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/kernel/trace
History
Steven Rostedt (VMware) ff84c50cfb ring-buffer: Do not die if rb_iter_peek() fails more than thrice 
As the iterator will be reading a live buffer, and if the event being read
is on a page that a writer crosses, it will fail and try again, the
condition in rb_iter_peek() that only allows a retry to happen three times
is no longer valid. Allow rb_iter_peek() to retry more than three times
without killing the ring buffer, but only if rb_iter_head_event() had failed
at least once.

Link: http://lkml.kernel.org/r/20200317213416.452888193@goodmis.org

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-03-19 19:11:19 -04:00
..
blktrace.c
blktrace: Protect q->blk_trace with RCU
2020-02-25 08:40:07 -07:00
bpf_trace.c
bpf: Add bpf_send_signal_thread() helper
2020-01-15 11:44:51 -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
treewide: Rename rcu_dereference_raw_notrace() to _check()
2019-08-01 14:16:21 -07:00
ftrace.c
ftrace: Protect ftrace_graph_hash with ftrace_sync
2020-02-05 17:16:42 -05:00
Kconfig
bootconfig: Fix CONFIG_BOOTTIME_TRACING dependency issue
2020-02-25 19:07:58 -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
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
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: Do not die if rb_iter_peek() fails more than thrice
2020-03-19 19:11:19 -04:00
rpm-traces.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
synth_event_gen_test.c
tracing: Have synthetic event test use raw_smp_processor_id()
2020-02-20 17:43:41 -05:00
trace_benchmark.c
trace: Use pr_warn instead of pr_warning
2019-10-18 15:01:57 +02:00
trace_benchmark.h
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00
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
tracing: Add SPDX License format tags to tracing files
2018-08-16 19:08:06 -04:00
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: Have hwlat ts be first instance and record count of instances
2020-03-03 17:33:43 -05:00
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
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00
trace_events_filter.c
tracing: Avoid memory leak in process_system_preds()
2019-12-19 18:24:17 -05:00
trace_events_hist.c
Tracing updates:
2020-02-26 10:34:42 -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
ring-buffer: Rename ring_buffer_read() to read_buffer_iter_advance()
2020-03-19 19:11:19 -04:00
trace_functions.c
tracing: Rename trace_buffer to array_buffer
2020-01-13 13:19:38 -05:00
trace_hwlat.c
tracing: Have hwlat ts be first instance and record count of instances
2020-03-03 17:33:43 -05:00
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
selftest/ftrace: Move kprobe selftest function to separate compile unit
2018-07-30 18:41:04 -04:00
trace_kprobe_selftest.h
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00
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
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
trace_output.c
tracing: Save off entry when peeking at next entry
2020-03-19 17:48:36 -04:00
trace_output.h
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00
trace_preemptirq.c
kprobes: Prohibit probing on hardirq tracers
2019-02-13 08:16:40 +01:00
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
tracing/probe: Support user-space dereference
2019-05-25 23:04:42 -04:00
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
ftrace: Mark function tracer test functions noinline/noclone
2018-01-23 15:57:29 -05:00
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
ring-buffer: Rename ring_buffer_read() to read_buffer_iter_advance()
2020-03-19 19:11:19 -04:00
trace.h
tracing: Remove unused TRACE_BUFFER bits
2020-03-03 17:34:02 -05:00
tracing_map.c
tracing: Have the histogram compare functions convert to u64 first
2019-12-19 18:26:00 -05:00
tracing_map.h
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00