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4e958db34fd5324421ef9562c31c15e2d152dc63
linux/kernel/trace
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Steven Rostedt (Google) 4e958db34f ring-buffer: Make sure the spare sub buffer used for reads has same size 
Now that the ring buffer specifies the size of its sub buffers, they all
need to be the same size. When doing a read, a swap is done with a spare
page. Make sure they are the same size before doing the swap, otherwise
the read will fail.

Link: https://lore.kernel.org/linux-trace-kernel/20231219185629.763664788@goodmis.org

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Tzvetomir Stoyanov <tz.stoyanov@gmail.com>
Cc: Vincent Donnefort <vdonnefort@google.com>
Cc: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-12-21 10:55:04 -05:00
..
rv
Merge tag 'trace-tools-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
2023-04-28 16:11:26 -07:00
blktrace.c
block: remove more NULL checks after bdev_get_queue()
2023-02-21 09:23:22 -07:00
bpf_trace.c
bpf: Add __bpf_kfunc_{start,end}_defs macros
2023-11-01 22:33:53 -07:00
bpf_trace.h
…
error_report-traces.c
…
fgraph.c
tracing: arm64: Avoid missing-prototype warnings
2023-07-12 12:06:04 -04:00
fprobe.c
Merge tag 'probes-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
2023-11-01 16:15:42 -10:00
ftrace_internal.h
tracing: arm64: Avoid missing-prototype warnings
2023-07-12 12:06:04 -04:00
ftrace.c
ftrace: Use LIST_HEAD to initialize clear_hash
2023-09-01 21:18:38 -04:00
Kconfig
Merge tag 'probes-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
2023-06-30 10:44:53 -07:00
kprobe_event_gen_test.c
tracing: Fix wrong return in kprobe_event_gen_test.c
2023-03-19 12:20:48 -04:00
Makefile
tracing/probes: Move finding func-proto API and getting func-param API to trace_btf
2023-08-23 09:39:45 +09:00
pid_list.c
…
pid_list.h
…
power-traces.c
…
preemptirq_delay_test.c
…
rethook.c
kprobes: unused header files removed
2023-10-24 10:04:59 +09:00
ring_buffer_benchmark.c
ring-buffer: Read and write to ring buffers with custom sub buffer size
2023-12-20 07:54:56 -05:00
ring_buffer.c
ring-buffer: Do no swap cpu buffers if order is different
2023-12-21 10:54:50 -05:00
rpm-traces.c
…
synth_event_gen_test.c
tracing: Always use canonical ftrace path
2023-02-18 14:34:09 -05:00
trace_benchmark.c
…
trace_benchmark.h
…
trace_boot.c
tracing: Allow creating instances with specified system events
2023-12-18 23:14:16 -05:00
trace_branch.c
…
trace_btf.c
tracing/probes: Add a function to search a member of a struct/union
2023-08-23 09:40:16 +09:00
trace_btf.h
tracing/probes: Add a function to search a member of a struct/union
2023-08-23 09:40:16 +09:00
trace_clock.c
…
trace_dynevent.c
…
trace_dynevent.h
…
trace_entries.h
tracing: Add back FORTIFY_SOURCE logic to kernel_stack event structure
2023-07-30 18:11:44 -04:00
trace_eprobe.c
tracing/eprobe: drop unneeded breaks
2023-10-10 01:03:48 +09:00
trace_event_perf.c
…
trace_events_filter_test.h
…
trace_events_filter.c
tracing: Have trace_event_file have ref counters
2023-11-01 23:44:44 -04:00
trace_events_hist.c
tracing: Fix uaf issue when open the hist or hist_debug file
2023-12-13 23:29:59 -05:00
trace_events_inject.c
tracing: Have event inject files inc the trace array ref count
2023-09-07 16:38:54 -04:00
trace_events_synth.c
tracing: Have the user copy of synthetic event address use correct context
2023-11-01 23:46:05 -04:00
trace_events_trigger.c
tracing: Fix kernel-doc warnings in trace_events_trigger.c
2023-07-28 19:59:03 -04:00
trace_events_user.c
tracing/user_events: Allow events to persist for perfmon_capable users
2023-10-03 22:29:43 -04:00
trace_events.c
ring-buffer: Page size per ring buffer
2023-12-20 07:54:55 -05:00
trace_export.c
tracing: Add back FORTIFY_SOURCE logic to kernel_stack event structure
2023-07-30 18:11:44 -04:00
trace_fprobe.c
tracing: fprobe-event: Fix to check tracepoint event and return
2023-11-10 20:06:12 +09:00
trace_functions_graph.c
function_graph: Support recording and printing the return value of function
2023-06-20 18:38:37 -04:00
trace_functions.c
…
trace_hwlat.c
tracing: Remove extra space at the end of hwlat_detector/mode
2023-09-01 21:00:00 -04:00
trace_irqsoff.c
tracing: Fix memleak due to race between current_tracer and trace
2023-08-17 13:49:37 -04:00
trace_kdb.c
…
trace_kprobe_selftest.c
tracing: arm64: Avoid missing-prototype warnings
2023-07-12 12:06:04 -04:00
trace_kprobe_selftest.h
…
trace_kprobe.c
tracing/kprobes: Fix the order of argument descriptions
2023-11-11 08:00:43 +09:00
trace_mmiotrace.c
…
trace_nop.c
…
trace_osnoise.c
tracing/timerlat: Add user-space interface
2023-06-22 10:39:56 -04:00
trace_output.c
tracing: Add size check when printing trace_marker output
2023-12-12 22:07:22 -05:00
trace_output.h
tracing: Add "fields" option to show raw trace event fields
2023-03-29 06:52:08 -04:00
trace_preemptirq.c
cpuidle: tracing, preempt: Squash _rcuidle tracing
2023-01-31 15:01:46 +01:00
trace_printk.c
…
trace_probe_kernel.h
tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails
2023-07-14 17:04:58 +09:00
trace_probe_tmpl.h
tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails
2023-07-14 17:04:58 +09:00
trace_probe.c
tracing/probes: Add string type check with BTF
2023-08-23 09:41:13 +09:00
trace_probe.h
tracing/kprobes: Return EADDRNOTAVAIL when func matches several symbols
2023-10-20 22:10:41 +09:00
trace_recursion_record.c
…
trace_sched_switch.c
…
trace_sched_wakeup.c
tracing: Fix memleak due to race between current_tracer and trace
2023-08-17 13:49:37 -04:00
trace_selftest_dynamic.c
…
trace_selftest.c
tracing: Have function_graph selftest call cond_resched()
2023-05-28 21:15:46 -04:00
trace_seq.c
trace_seq: Increase the buffer size to almost two pages
2023-12-18 23:14:16 -05:00
trace_stack.c
…
trace_stat.c
…
trace_stat.h
…
trace_synth.h
tracing: Allow synthetic events to pass around stacktraces
2023-01-25 10:31:24 -05:00
trace_syscalls.c
bpf: Change syscall_nr type to int in struct syscall_tp_t
2023-10-13 12:39:36 -07:00
trace_uprobe.c
Merge tag 'probes-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
2023-09-02 11:10:50 -07:00
trace.c
ring-buffer: Make sure the spare sub buffer used for reads has same size
2023-12-21 10:55:04 -05:00
trace.h
ring-buffer: Page size per ring buffer
2023-12-20 07:54:55 -05:00
tracing_map.c
…
tracing_map.h
tracing: Remove unused extern declaration tracing_map_set_field_descr()
2023-07-23 11:08:14 -04:00