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authorLinus Torvalds <torvalds@linux-foundation.org>2018-04-10 11:27:30 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-10 11:27:30 -0700
commit2a56bb596b2c1fb612f9988afda9655c8c872a6e (patch)
tree8f76cd7a0d4f5a46e00d45e5605e161d4e16b81e /kernel/printk
parent9f3a0941fb5efaa4d27911e251dc595034d58baa (diff)
parentb0dc52f15e7fe2b973ecfe4f3706f1b35ce3943a (diff)
downloadlinux-2a56bb596b2c1fb612f9988afda9655c8c872a6e.tar.bz2
Merge tag 'trace-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt: "New features: - Tom Zanussi's extended histogram work. This adds the synthetic events to have histograms from multiple event data Adds triggers "onmatch" and "onmax" to call the synthetic events Several updates to the histogram code from this - Allow way to nest ring buffer calls in the same context - Allow absolute time stamps in ring buffer - Rewrite of filter code parsing based on Al Viro's suggestions - Setting of trace_clock to global if TSC is unstable (on boot) - Better OOM handling when allocating large ring buffers - Added initcall tracepoints (consolidated initcall_debug code with them) And other various fixes and clean ups" * tag 'trace-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (68 commits) init: Have initcall_debug still work without CONFIG_TRACEPOINTS init, tracing: Have printk come through the trace events for initcall_debug init, tracing: instrument security and console initcall trace events init, tracing: Add initcall trace events tracing: Add rcu dereference annotation for test func that touches filter->prog tracing: Add rcu dereference annotation for filter->prog tracing: Fixup logic inversion on setting trace_global_clock defaults tracing: Hide global trace clock from lockdep ring-buffer: Add set/clear_current_oom_origin() during allocations ring-buffer: Check if memory is available before allocation lockdep: Add print_irqtrace_events() to __warn vsprintf: Do not preprocess non-dereferenced pointers for bprintf (%px and %pK) tracing: Uninitialized variable in create_tracing_map_fields() tracing: Make sure variable string fields are NULL-terminated tracing: Add action comparisons when testing matching hist triggers tracing: Don't add flag strings when displaying variable references tracing: Fix display of hist trigger expressions containing timestamps ftrace: Drop a VLA in module_exists() tracing: Mention trace_clock=global when warning about unstable clocks tracing: Default to using trace_global_clock if sched_clock is unstable ...
Diffstat (limited to 'kernel/printk')
-rw-r--r--kernel/printk/printk.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 704e55129c3a..2f4af216bd6e 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -51,6 +51,7 @@
#include <linux/uaccess.h>
#include <asm/sections.h>
+#include <trace/events/initcall.h>
#define CREATE_TRACE_POINTS
#include <trace/events/printk.h>
@@ -2780,6 +2781,7 @@ EXPORT_SYMBOL(unregister_console);
*/
void __init console_init(void)
{
+ int ret;
initcall_t *call;
/* Setup the default TTY line discipline. */
@@ -2790,8 +2792,11 @@ void __init console_init(void)
* inform about problems etc..
*/
call = __con_initcall_start;
+ trace_initcall_level("console");
while (call < __con_initcall_end) {
- (*call)();
+ trace_initcall_start((*call));
+ ret = (*call)();
+ trace_initcall_finish((*call), ret);
call++;
}
}