lkml.org 
[lkml]   [2010]   [May]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH -tip v2 1/5] [BUGFIX] kprobes: Fix selftest to clear flags field for reusing probes
Date
Fix selftest to clear flags field for reusing probes
because the flags field can be modified by Kprobes.

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Jim Keniston <jkenisto@us.ibm.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

kernel/test_kprobes.c | 12 +++++++++---
1 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/kernel/test_kprobes.c b/kernel/test_kprobes.c
index 4f10451..ede20f4 100644
--- a/kernel/test_kprobes.c
+++ b/kernel/test_kprobes.c
@@ -115,7 +115,9 @@ static int test_kprobes(void)
int ret;
struct kprobe *kps[2] = {&kp, &kp2};

- kp.addr = 0; /* addr should be cleard for reusing kprobe. */
+ /* addr and flags should be cleard for reusing kprobe. */
+ kp.addr = 0;
+ kp.flags = 0;
ret = register_kprobes(kps, 2);
if (ret < 0) {
printk(KERN_ERR "Kprobe smoke test failed: "
@@ -210,7 +212,9 @@ static int test_jprobes(void)
int ret;
struct jprobe *jps[2] = {&jp, &jp2};

- jp.kp.addr = 0; /* addr should be cleard for reusing kprobe. */
+ /* addr and flags should be cleard for reusing kprobe. */
+ jp.kp.addr = 0;
+ jp.kp.flags = 0;
ret = register_jprobes(jps, 2);
if (ret < 0) {
printk(KERN_ERR "Kprobe smoke test failed: "
@@ -323,7 +327,9 @@ static int test_kretprobes(void)
int ret;
struct kretprobe *rps[2] = {&rp, &rp2};

- rp.kp.addr = 0; /* addr should be cleard for reusing kprobe. */
+ /* addr and flags should be cleard for reusing kprobe. */
+ rp.kp.addr = 0;
+ rp.kp.flags = 0;
ret = register_kretprobes(rps, 2);
if (ret < 0) {
printk(KERN_ERR "Kprobe smoke test failed: "

--
Masami Hiramatsu
e-mail: mhiramat@redhat.com


\
 
 \ /
  Last update: 2010-05-18 22:11    [W:0.058 / U:0.292 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site