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[RFC][PATCH -mm 6/6] kprobes: Support kretprobe and jprobe per-probe disabling
- From: Masami Hiramatsu <mhiramat at redhat dot com>
- To: Andrew Morton <akpm at linux-foundation dot org>
- Cc: Ananth N Mavinakayanahalli <ananth at in dot ibm dot com>, Jim Keniston <jkenisto at us dot ibm dot com>, David Miller <davem at davemloft dot net>, Maneesh Soni <maneesh at linux dot vnet dot ibm dot com>, Srikar Dronamraju <srikar at linux dot vnet dot ibm dot com>, LKML <linux-kernel at vger dot kernel dot org>, systemtap-ml <systemtap at sources dot redhat dot com>
- Date: Mon, 12 Jan 2009 20:56:16 -0500
- Subject: [RFC][PATCH -mm 6/6] kprobes: Support kretprobe and jprobe per-probe disabling
Add disable/enable_kretprobe() and disable/enable_jprobe().
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
---
Documentation/kprobes.txt | 16 ++++++++++------
include/linux/kprobes.h | 17 +++++++++++++++++
2 files changed, 27 insertions(+), 6 deletions(-)
Index: 2.6.28-mm1/include/linux/kprobes.h
===================================================================
--- 2.6.28-mm1.orig/include/linux/kprobes.h
+++ 2.6.28-mm1/include/linux/kprobes.h
@@ -350,4 +350,21 @@ static inline int enable_kprobe(struct k
return -ENOSYS;
}
#endif /* CONFIG_KPROBES */
+static inline int disable_kretprobe(struct kretprobe *rp)
+{
+ return disable_kprobe(&rp->kp);
+}
+static inline int enable_kretprobe(struct kretprobe *rp)
+{
+ return enable_kprobe(&rp->kp);
+}
+static inline int disable_jprobe(struct jprobe *jp)
+{
+ return disable_kprobe(&jp->kp);
+}
+static inline int enable_jprobe(struct jprobe *jp)
+{
+ return enable_kprobe(&jp->kp);
+}
+
#endif /* _LINUX_KPROBES_H */
Index: 2.6.28-mm1/Documentation/kprobes.txt
===================================================================
--- 2.6.28-mm1.orig/Documentation/kprobes.txt
+++ 2.6.28-mm1/Documentation/kprobes.txt
@@ -365,21 +365,25 @@ probes) in the specified array, they cle
incorrect probes. However, other probes in the array are
unregistered correctly.
-4.7 disable_kprobe
+4.7 disable_*probe
#include <linux/kprobes.h>
int disable_kprobe(struct kprobe *kp);
+int disable_kretprobe(struct kretprobe *rp);
+int disable_jprobe(struct jprobe *jp);
-Temporarily disables the specified kprobe. You can enable it again by using
-enable_kprobe(). You must specify the kprobe which has been registered.
+Temporarily disables the specified *probe. You can enable it again by using
+enable_*probe(). You must specify the probe which has been registered.
-4.8 enable_kprobe
+4.8 enable_*probe
#include <linux/kprobes.h>
int enable_kprobe(struct kprobe *kp);
+int enable_kretprobe(struct kretprobe *rp);
+int enable_jprobe(struct jprobe *jp);
-Enables kprobe which has been disabled by disable_kprobe(). You must specify
-the kprobe which has been registered.
+Enables *probe which has been disabled by disable_*probe(). You must specify
+the probe which has been registered.
5. Kprobes Features and Limitations
--
Masami Hiramatsu
Software Engineer
Hitachi Computer Products (America) Inc.
Software Solutions Division
e-mail: mhiramat@redhat.com