Steven Rostedt 97937834ae ring-buffer: Update pages_touched to reflect persistent buffer content ... The pages_touched field represents the number of subbuffers in the ring buffer that have content that can be read. This is used in accounting of "dirty_pages" and "buffer_percent" to allow the user to wait for the buffer to be filled to a certain amount before it reads the buffer in blocking mode. The persistent buffer never updated this value so it was set to zero, and this accounting would take it as it had no content. This would cause user space to wait for content even though there's enough content in the ring buffer that satisfies the buffer_percent. Cc: stable@vger.kernel.org Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Vincent Donnefort <vdonnefort@google.com> Link: https://lore.kernel.org/20250214123512.0631436e@gandalf.local.home Fixes: 5f3b6e839f ("ring-buffer: Validate boot range memory events") Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>		2025-02-15 14:00:59 -05:00
..
rv	verification/dot2k: Auto patch current kernel source	2024-12-27 14:39:35 -05:00
blktrace.c	blktrace: remove redundant return at end of function	2024-12-23 08:17:23 -07:00
bpf_trace.c	bpf-next-6.14	2025-01-23 08:04:07 -08:00
bpf_trace.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
error_report-traces.c
fgraph.c	fgraph: Remove calltime and rettime from generic operations	2025-01-21 21:55:49 -05:00
fprobe.c	fprobe: Add fprobe_header encoding feature	2024-12-26 10:50:05 -05:00
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	treewide: const qualify ctl_tables where applicable	2025-01-28 13:48:37 +01:00
Kconfig	fprobe: Rewrite fprobe on function-graph tracer	2024-12-26 10:50:05 -05:00
kprobe_event_gen_test.c
Makefile
pid_list.c	pid: allow pid_max to be set per pid namespace	2024-12-02 11:25:25 +01:00
pid_list.h
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: Use str_low_high() helper in ring_buffer_producer()	2024-10-19 11:12:25 -04:00
ring_buffer.c	ring-buffer: Update pages_touched to reflect persistent buffer content	2025-02-15 14:00:59 -05:00
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
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
trace_clock.c	tracing: Use atomic64_inc_return() in trace_clock_counter()	2024-10-09 19:59:49 -04:00
trace_dynevent.c	tracing/string: Create and use __free(argv_free) in trace_dynevent.c	2024-12-26 10:38:37 -05:00
trace_dynevent.h
trace_entries.h	fgraph: Remove calltime and rettime from generic operations	2025-01-21 21:55:49 -05:00
trace_eprobe.c	tracing/eprobe: Adopt guard() and scoped_guard()	2025-01-10 09:00:12 +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: Switch trace_events_filter.c code over to use guard()	2024-12-26 10:38:37 -05:00
trace_events_hist.c	tracing/hist: Support POLLPRI event for poll on histogram	2025-01-07 11:46:32 -05:00
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: Switch trace_events_synth.c code over to use guard()	2024-12-26 10:38:37 -05:00
trace_events_trigger.c	tracing: Switch trace_events_trigger.c code over to use guard()	2024-12-26 10:38:37 -05:00
trace_events_user.c	treewide: const qualify ctl_tables where applicable	2025-01-28 13:48:37 +01:00
trace_events.c	tracing updates for v6.14:	2025-01-23 17:51:16 -08:00
trace_export.c
trace_fprobe.c	tracing: Adopt __free() and guard() for trace_fprobe.c	2025-01-16 21:27:07 -05:00
trace_functions_graph.c	fgraph: Fix set_graph_notrace with setting TRACE_GRAPH_NOTRACE_BIT	2025-02-08 08:36:45 -05:00
trace_functions.c	ftrace: Do not find "true_parent" if HAVE_DYNAMIC_FTRACE_WITH_ARGS is not set	2024-12-16 17:22:26 -05:00
trace_hwlat.c	tracing: Remove TRACE_EVENT_FL_FILTERED logic	2024-10-08 15:24:49 -04:00
trace_irqsoff.c	fgraph: Remove calltime and rettime from generic operations	2025-01-21 21:55:49 -05:00
trace_kdb.c	trace: kdb: Replace simple_strtoul with kstrtoul in kdb_ftdump	2024-11-02 08:33:13 +00:00
trace_kprobe_selftest.c
trace_kprobe_selftest.h
trace_kprobe.c	tracing/kprobes: Simplify __trace_kprobe_create() by removing gotos	2025-01-10 09:01:14 +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	Runtime verifier and osnoise fixes for 6.14:	2025-01-26 14:19:45 -08:00
trace_output.c	tracing: Check "%s" dereference via the field and not the TP_printk format	2024-12-17 11:40:11 -05:00
trace_output.h
trace_preemptirq.c	tracing: Fix archs that still call tracepoints without RCU watching	2024-12-05 09:28:58 -05:00
trace_printk.c
trace_probe_kernel.h
trace_probe_tmpl.h	tracing/fprobe: Enable fprobe events with CONFIG_DYNAMIC_FTRACE_WITH_ARGS	2024-12-26 10:50:04 -05:00
trace_probe.c	tracing: Use __free() in trace_probe for cleanup	2025-01-10 09:00:13 +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
trace_sched_switch.c	pid: allow pid_max to be set per pid namespace	2024-12-02 11:25:25 +01:00
trace_sched_wakeup.c	fgraph: Remove calltime and rettime from generic operations	2025-01-21 21:55:49 -05:00
trace_selftest_dynamic.c
trace_selftest.c	fgraph: Pass ftrace_regs to retfunc	2024-12-26 10:50:03 -05:00
trace_seq.c	trace_seq: Increase the buffer size to almost two pages	2023-12-18 23:14:16 -05:00
trace_stack.c	tracing: Switch trace_stack.c code over to use guard()	2024-12-26 10:38:37 -05:00
trace_stat.c	tracing: Switch trace_stat.c code over to use guard()	2024-12-26 10:38:37 -05:00
trace_stat.h
trace_synth.h
trace_syscalls.c	tracing/perf: Add might_fault check to syscall probes	2024-10-09 17:09:46 -04:00
trace_uprobe.c	tracing/uprobe: Adopt guard() and scoped_guard()	2025-01-10 09:00:12 +09:00
trace.c	tracing: Do not allow mmap() of persistent ring buffer	2025-02-15 13:59:52 -05:00
trace.h	Remove calltime and rettime from fgraph infrastructure	2025-01-23 17:59:25 -08:00
tracing_map.c	tracing: Fix cmp_entries_dup() to respect sort() comparison rules	2024-12-04 10:38:24 -05:00
tracing_map.h