kprobes: add (un)register_kprobes for batch registration
PATCH 2/5 kprobes: add (un)register_kprobes for batch registration
Introduce unregister_/register_kprobes() for kprobe batch registration. This can reduce waiting time for synchronized_sched() when a lot of probes have to be unregistered at once.
Signed-off-by Masami Hiramatsu <[email protected]>
---
I rewrote a patchset which had been discussed on LKML, and simplified its interfaces.
http://lkml.org/lkml/2007/3/23/181
include/linux/kprobes.h | 9 +++ kernel/kprobes.c | 124 +++++++++++++++++++++++++++++++++--------------- 2 files changed, 96 insertions(+), 37 deletions(-)
include/linux/kprobes.h +9 -0
@@ -234,6 +234,8 @@ static inline struct kprobe_ctlblk *get_int register_kprobe (struct kprobe *p);void unregister_kprobe (struct kprobe *p); +int register_kprobes (struct kprobe **kps,int num); +void unregister_kprobes (struct kprobe **kps,int num);int setjmp_pre_handler (struct kprobe *,struct pt_regs *);int longjmp_break_handler (struct kprobe *,struct pt_regs *);int register_jprobe (struct jprobe *p);
@@ -261,9 +263,16 @@ static inline int register_kprobe(struct {return -ENOSYS ; } +static inline int register_kprobes (struct kprobe **kps,int num) +{ +return -ENOSYS ; +}static inline void unregister_kprobe (struct kprobe *p) { } +static inline void unregister_kprobes (struct kprobe **kps,int num) +{ +}static inline int register_jprobe (struct jprobe *p) {return -ENOSYS ;
kernel/kprobes.c +87 -37
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Masami Hiramatsu Software Engineer Hitachi Computer Products (America) Inc. Software Solutions Division e-mail: [email protected]