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Steven Rostedt (Google) 4f7512e779 ring-buffer: Do not record in NMI if the arch does not support cmpxchg in NMI 
[ Upstream commit 712292308af2265cd9b126aedfa987f10f452a33 ]

As the ring buffer recording requires cmpxchg() to work, if the
architecture does not support cmpxchg in NMI, then do not do any recording
within an NMI.

Link: https://lore.kernel.org/linux-trace-kernel/20231213175403.6fc18540@gandalf.local.home

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-25 14:34:20 -08:00
..
blktrace.c
blktrace: Fix output non-blktrace event when blk_classic option enabled
2023-01-18 11:41:13 +01:00
bpf_trace.c
bpf: Clear the probe_addr for uprobe
2023-09-23 10:59:41 +02:00
fgraph.c
fgraph: Initialize tracing_graph_pause at task creation
2021-02-10 09:25:29 +01:00
ftrace_internal.h
treewide: Rename rcu_dereference_raw_notrace() to _check()
2019-08-01 14:16:21 -07:00
ftrace.c
ftrace: Fix possible warning on checking all pages used in ftrace_process_locs()
2023-08-11 11:53:46 +02:00
Kconfig
tracing/kprobes: Do the notrace functions check without kprobes on ftrace
2021-01-19 18:26:12 +01:00
Makefile
…
power-traces.c
…
preemptirq_delay_test.c
…
ring_buffer_benchmark.c
tracing: Use CONFIG_PREEMPTION
2019-07-31 19:03:35 +02:00
ring_buffer.c
ring-buffer: Do not record in NMI if the arch does not support cmpxchg in NMI
2024-01-25 14:34:20 -08:00
rpm-traces.c
…
trace_benchmark.c
…
trace_benchmark.h
…
trace_branch.c
…
trace_clock.c
tracing: Do no increment trace_clock_global() by one
2021-06-23 14:41:28 +02:00
trace_dynevent.c
tracing: Free buffers when a used dynamic event is removed
2022-12-08 11:23:04 +01:00
trace_dynevent.h
tracing/dynevent: Pass extra arguments to match operation
2019-08-31 12:19:38 -04:00
trace_entries.h
tracing: Set kernel_stack's caller size properly
2020-10-01 13:17:29 +02:00
trace_event_perf.c
tracing: Fix race in perf_trace_buf initialization
2019-10-21 19:38:28 -04:00
trace_events_filter_test.h
…
trace_events_filter.c
tracing: Have trace_event_file have ref counters
2023-11-28 16:50:22 +00:00
trace_events_hist.c
tracing/histograms: Return an error if we fail to add histogram to hist_vars list
2023-07-27 08:37:45 +02:00
trace_events_trigger.c
tracing: Dump stacktrace trigger to the corresponding instance
2022-04-27 13:50:45 +02:00
trace_events.c
tracing: Have trace_event_file have ref counters
2023-11-28 16:50:22 +00:00
trace_export.c
…
trace_functions_graph.c
fgraph: Remove redundant ftrace_graph_notrace_addr() test
2019-07-30 21:50:03 -04:00
trace_functions.c
tracing: Have all levels of checks prevent recursion
2021-10-27 09:54:29 +02:00
trace_hwlat.c
tracing: Remove WARN_ON in start_thread()
2020-12-08 10:40:28 +01:00
trace_irqsoff.c
tracing: Fix memleak due to race between current_tracer and trace
2023-08-30 16:27:23 +02:00
trace_kdb.c
tracing: Silence GCC 9 array bounds warning
2019-05-25 23:04:30 -04:00
trace_kprobe_selftest.c
…
trace_kprobe_selftest.h
…
trace_kprobe.c
tracing/probes: Have process_fetch_insn() take a void * instead of pt_regs
2023-08-30 16:27:14 +02:00
trace_mmiotrace.c
…
trace_nop.c
…
trace_output.c
tracing: Add size check when printing trace_marker output
2024-01-25 14:34:20 -08:00
trace_output.h
…
trace_preemptirq.c
tracing: hold caller_addr to hardirq_{enable,disable}_ip
2022-09-28 11:03:57 +02:00
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/probes: Fix to update dynamic data counter if fetcharg uses it
2023-08-30 16:27:14 +02:00
trace_probe.c
tracing/probes: Have kprobes and uprobes use $COMM too
2022-08-25 11:18:39 +02:00
trace_probe.h
tracing/probe: trace_probe_primary_from_call(): checked list_first_entry
2023-06-09 10:29:02 +02:00
trace_sched_switch.c
tracing: Fix sched switch start/stop refcount racy updates
2020-02-11 04:35:07 -08:00
trace_sched_wakeup.c
tracing: Fix memleak due to race between current_tracer and trace
2023-08-30 16:27:23 +02:00
trace_selftest_dynamic.c
…
trace_selftest.c
ftrace: Handle tracing when switching between context
2020-11-10 12:37:28 +01:00
trace_seq.c
…
trace_stack.c
tracing: Have stack tracer compile when MCOUNT_INSN_SIZE is not defined
2020-01-14 20:08:22 +01:00
trace_stat.c
tracing: Fix very unlikely race of registering two stat tracers
2020-02-24 08:36:30 +01:00
trace_stat.h
…
trace_syscalls.c
…
trace_uprobe.c
bpf: Clear the probe_addr for uprobe
2023-09-23 10:59:41 +02:00
trace.c
tracing: Have large events show up as '[LINE TOO BIG]' instead of nothing
2024-01-25 14:34:20 -08:00
trace.h
tracing: Have trace_event_file have ref counters
2023-11-28 16:50:22 +00:00
tracing_map.c
tracing: Fix a kmemleak false positive in tracing_map
2021-12-17 10:12:24 +01:00
tracing_map.h
…