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authorLinus Torvalds <torvalds@linux-foundation.org>2022-05-29 10:31:36 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-05-29 10:31:36 -0700
commit76bfd3de34783ceda1fc1d73d0db87361de07ecb (patch)
tree468edc58eae863167afa5ff96248a2c7bcc91c9a /kernel/trace/trace_dynevent.c
parent09f73a1ab8207481d1d6bd91ab7d0125c6722005 (diff)
parentb39181f7c6907dc66ff937b74758671fa6ba430c (diff)
Merge tag 'trace-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt: "The majority of the changes are for fixes and clean ups. Notable changes: - Rework trace event triggers code to be easier to interact with. - Support for embedding bootconfig with the kernel (as suppose to having it embedded in initram). This is useful for embedded boards without initram disks. - Speed up boot by parallelizing the creation of tracefs files. - Allow absolute ring buffer timestamps handle timestamps that use more than 59 bits. - Added new tracing clock "TAI" (International Atomic Time) - Have weak functions show up in available_filter_function list as: __ftrace_invalid_address___<invalid-offset> instead of using the name of the function before it" * tag 'trace-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (52 commits) ftrace: Add FTRACE_MCOUNT_MAX_OFFSET to avoid adding weak function tracing: Fix comments for event_trigger_separate_filter() x86/traceponit: Fix comment about irq vector tracepoints x86,tracing: Remove unused headers ftrace: Clean up hash direct_functions on register failures tracing: Fix comments of create_filter() tracing: Disable kcov on trace_preemptirq.c tracing: Initialize integer variable to prevent garbage return value ftrace: Fix typo in comment ftrace: Remove return value of ftrace_arch_modify_*() tracing: Cleanup code by removing init "char *name" tracing: Change "char *" string form to "char []" tracing/timerlat: Do not wakeup the thread if the trace stops at the IRQ tracing/timerlat: Print stacktrace in the IRQ handler if needed tracing/timerlat: Notify IRQ new max latency only if stop tracing is set kprobes: Fix build errors with CONFIG_KRETPROBES=n tracing: Fix return value of trace_pid_write() tracing: Fix potential double free in create_var_ref() tracing: Use strim() to remove whitespace instead of doing it manually ftrace: Deal with error return code of the ftrace_process_locs() function ...
Diffstat (limited to 'kernel/trace/trace_dynevent.c')
-rw-r--r--kernel/trace/trace_dynevent.c9
1 files changed, 2 insertions, 7 deletions
diff --git a/kernel/trace/trace_dynevent.c b/kernel/trace/trace_dynevent.c
index e34e8182ee4b..076b447a1b88 100644
--- a/kernel/trace/trace_dynevent.c
+++ b/kernel/trace/trace_dynevent.c
@@ -255,19 +255,14 @@ static const struct file_operations dynamic_events_ops = {
/* Make a tracefs interface for controlling dynamic events */
static __init int init_dynamic_event(void)
{
- struct dentry *entry;
int ret;
ret = tracing_init_dentry();
if (ret)
return 0;
- entry = tracefs_create_file("dynamic_events", TRACE_MODE_WRITE, NULL,
- NULL, &dynamic_events_ops);
-
- /* Event list interface */
- if (!entry)
- pr_warn("Could not create tracefs 'dynamic_events' entry\n");
+ trace_create_file("dynamic_events", TRACE_MODE_WRITE, NULL,
+ NULL, &dynamic_events_ops);
return 0;
}