Ryan Roberts 2c33155ef6 tracing: Make percpu stack trace buffer invariant to PAGE_SIZE ... Previously the size of "struct ftrace_stacks" depended upon PAGE_SIZE. For the common 4K page size, on a 64-bit system, sizeof(struct ftrace_stacks) was 32K. But for a 64K page size, sizeof(struct ftrace_stacks) was 512K. But ftrace stack usage requirements should be invariant to page size. So let's redefine FTRACE_KSTACK_ENTRIES so that "struct ftrace_stacks" is always sized at 32K for 64-bit and 16K for 32-bit. As a side effect, it removes the PAGE_SIZE compile-time constant assumption from this code, which is required to reach the goal of boot-time page size selection. Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Link: https://lore.kernel.org/20241021141832.3668264-1-ryan.roberts@arm.com Signed-off-by: Ryan Roberts <ryan.roberts@arm.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>		2024-10-30 19:41:07 -04:00
..
rv	[tree-wide] finally take no_llseek out	2024-09-27 08:18:43 -07:00
blktrace.c	blktrace: convert strncpy() to strscpy_pad()	2024-04-25 21:07:08 -07:00
bpf_trace.c	bpf-next-6.12	2024-09-21 09:27:50 -07:00
bpf_trace.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
error_report-traces.c	tracing: add error_report_end trace point	2021-02-26 09:41:02 -08:00
fgraph.c	tracing: fgraph: Fix to add new fgraph_ops to array after ftrace_startup_subops()	2024-08-21 13:49:59 -04:00
fprobe.c	fprobe: Fix to allocate entry_data_size buffer with rethook instances	2024-03-01 09:18:24 +09:00
ftrace_internal.h	function_graph: Make fgraph_update_pid_func() a stub for !DYNAMIC_FTRACE	2024-06-10 18:08:23 -04:00
ftrace.c	sysctl: treewide: constify the ctl_table argument of proc_handlers	2024-07-24 20:59:29 +02:00
Kconfig	tracing: Build event generation tests only as modules	2024-06-12 08:43:12 +09:00
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	trace/pid_list: Change gfp flags in pid_list_fill_irq()	2024-07-15 15:07:14 -04:00
pid_list.h	tracing: Create a sparse bitmask for pid filtering	2021-10-05 17:38:45 -04:00
power-traces.c
preemptirq_delay_test.c	minmax: make generic MIN() and MAX() macros available everywhere	2024-07-28 15:49:18 -07:00
rethook.c	rethook: honor CONFIG_FTRACE_VALIDATE_RCU_IS_WATCHING in rethook_try_get()	2024-05-01 23:18:48 +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: Align meta-page to sub-buffers for improved TLB usage	2024-08-26 13:42:23 -04:00
rpm-traces.c
synth_event_gen_test.c	tracing / synthetic: Disable events after testing in synth_event_gen_test_init()	2023-12-21 10:04:45 -05:00
trace_benchmark.c	tracing: Improve benchmark test performance by using do_div()	2024-05-13 20:00:57 -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: Allow creating instances with specified system events	2023-12-18 23:14:16 -05:00
trace_branch.c	tracing: Remove TRACE_EVENT_FL_FILTERED logic	2024-10-08 15:24:49 -04:00
trace_btf.c	tracing/probes: Fix to search structure fields correctly	2024-02-17 21:25:42 +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	tracing: Use atomic64_inc_return() in trace_clock_counter()	2024-10-09 19:59:49 -04:00
trace_dynevent.c	tracing: Free buffers when a used dynamic event is removed	2022-11-23 19:07:12 -05:00
trace_dynevent.h	tracing: Add DYNAMIC flag for dynamic events	2021-08-18 18:10:32 -04:00
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/probes: Support $argN in return probe (kprobe and fprobe)	2024-03-07 00:27:34 +09:00
trace_event_perf.c	trace/trace_event_perf: remove duplicate samples on the first tracepoint event	2024-10-09 19:44:54 -04:00
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	tracepoints: Use new static branch API	2024-10-08 21:17:39 -04:00
trace_events_inject.c	tracing: Have format file honor EVENT_FILE_FL_FREED	2024-08-07 18:12:46 -04:00
trace_events_synth.c	tracing/synthetic: Fix trace_string() return value	2024-02-15 11:40:01 -05:00
trace_events_trigger.c	tracing: Have format file honor EVENT_FILE_FL_FREED	2024-08-07 18:12:46 -04:00
trace_events_user.c	tracepoints: Use new static branch API	2024-10-08 21:17:39 -04:00
trace_events.c	tracing: Remove TRACE_EVENT_FL_FILTERED logic	2024-10-08 15:24:49 -04:00
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: Support raw tracepoints on future loaded modules	2024-09-25 23:23:44 +09:00
trace_functions_graph.c	tracing: Remove TRACE_EVENT_FL_FILTERED logic	2024-10-08 15:24:49 -04:00
trace_functions.c	ftrace: Use this_cpu_ptr() instead of per_cpu_ptr(smp_processor_id())	2024-10-08 15:24:22 -04:00
trace_hwlat.c	tracing: Remove TRACE_EVENT_FL_FILTERED logic	2024-10-08 15:24:49 -04:00
trace_irqsoff.c	function_graph: Move set_graph_function tests to shadow stack global var	2024-06-04 10:37:35 -04:00
trace_kdb.c	kdb: Rename members of struct kdbtab_t	2021-07-27 17:05:06 +01:00
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 build error when find_module() is not available	2024-07-10 09:47:00 +09:00
trace_mmiotrace.c	tracing: Remove TRACE_EVENT_FL_FILTERED logic	2024-10-08 15:24:49 -04:00
trace_nop.c
trace_osnoise.c	tracing: Remove TRACE_EVENT_FL_FILTERED logic	2024-10-08 15:24:49 -04:00
trace_output.c	tracing: Have trace_printk not use binary prints if boot buffer	2024-08-26 13:54:08 -04:00
trace_output.h	tracing: Add "fields" option to show raw trace event fields	2023-03-29 06:52:08 -04:00
trace_preemptirq.c	tracing: Remove definition of trace_*_rcuidle()	2024-10-08 21:17:39 -04:00
trace_printk.c	tracing: Disable "other" permission bits in the tracefs files	2021-10-08 18:08:43 -04:00
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: Support $argN in return probe (kprobe and fprobe)	2024-03-07 00:27:34 +09:00
trace_probe.c	tracing/probes: fix error check in parse_btf_field()	2024-05-27 21:32:35 +09:00
trace_probe.h	tracing/probes: support '%pd' type for print struct dentry's name	2024-05-01 23:18:47 +09:00
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	tracing: Move saved_cmdline code into trace_sched_switch.c	2024-03-17 07:58:53 -04:00
trace_sched_wakeup.c	tracing: Remove TRACE_EVENT_FL_FILTERED logic	2024-10-08 15:24:49 -04:00
trace_selftest_dynamic.c
trace_selftest.c	tracing: Fix memory leak in fgraph storage selftest	2024-08-21 15:10:33 -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	sysctl: treewide: constify the ctl_table argument of proc_handlers	2024-07-24 20:59:29 +02:00
trace_stat.c	tracing: Disable "other" permission bits in the tracefs files	2021-10-08 18:08:43 -04:00
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	tracing/perf: Add might_fault check to syscall probes	2024-10-09 17:09:46 -04:00
trace_uprobe.c	Probes updates for v6.12:	2024-09-26 08:55:36 -07:00
trace.c	tracing: Make percpu stack trace buffer invariant to PAGE_SIZE	2024-10-30 19:41:07 -04:00
trace.h	tracing: Remove TRACE_EVENT_FL_FILTERED logic	2024-10-08 15:24:49 -04:00
tracing_map.c	tracing: Fix overflow in get_free_elt()	2024-08-07 20:23:12 -04:00
tracing_map.h	tracing: Remove unused extern declaration tracing_map_set_field_descr()	2023-07-23 11:08:14 -04:00