lkml.org 
[lkml]   [2018]   [Mar]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Subject[PATCH] trace: instrument security and console initcall
From
Date
Hi Steve, 
This is the patch for security & console initcall's instrumentation


Signed-off-by: Abderrahmane Benbachir <abderrahmane.benbachir@polymtl.ca>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-kernel@vger.kernel.org
---
kernel/printk/printk.c | 7 ++++++-
security/security.c | 8 +++++++-
2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index f274fbef821d..0f10cfd1588e 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -52,6 +52,7 @@
#include <linux/uaccess.h>
#include <asm/sections.h>

+#include <trace/events/boot.h>
#define CREATE_TRACE_POINTS
#include <trace/events/printk.h>

@@ -2781,6 +2782,7 @@ EXPORT_SYMBOL(unregister_console);
*/
void __init console_init(void)
{
+ int ret;
initcall_t *call;

/* Setup the default TTY line discipline. */
@@ -2791,8 +2793,11 @@ 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++;
}
}
diff --git a/security/security.c b/security/security.c
index 1cd8526cb0b7..9de51d599bb4 100644
--- a/security/security.c
+++ b/security/security.c
@@ -30,6 +30,8 @@
#include <linux/string.h>
#include <net/flow.h>

+#include <trace/events/boot.h>
+
#define MAX_LSM_EVM_XATTR 2

/* Maximum number of letters for an LSM name string */
@@ -45,10 +47,14 @@ static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =

static void __init do_security_initcalls(void)
{
+ int ret;
initcall_t *call;
call = __security_initcall_start;
+ trace_initcall_level("security");
while (call < __security_initcall_end) {
- (*call) ();
+ trace_initcall_start((*call));
+ ret = (*call) ();
+ trace_initcall_finish((*call), ret);
call++;
}
}
--
2.11.0
\
 
 \ /
  Last update: 2018-03-23 01:34    [W:0.113 / U:1.100 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site