| Message ID | 1416292359-75893-2-git-send-email-wangnan0@huawei.com |
|---|---|
| State | New |
| Headers | show |
Hi Wang, (2014/11/18 15:32), Wang Nan wrote: > Copy old kprobe to newly alloced optimized_kprobe before > arch_prepare_optimized_kprobe(). Original kprove can brings more > information to optimizer. As I've asked you on the previous series, I prefer to transfer the original kprobes to arch_prepare_optimized_kprobe(). OK, now I'll send you my patch. If you can agree, feel free to pick that into your series. Thank you, > > v1 -> v2: > - Bugfix: copy p->addr when alloc_aggr_kprobe. > > Signed-off-by: Wang Nan <wangnan0@huawei.com> > --- > kernel/kprobes.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/kernel/kprobes.c b/kernel/kprobes.c > index 3995f54..e9868ec 100644 > --- a/kernel/kprobes.c > +++ b/kernel/kprobes.c > @@ -730,7 +730,13 @@ static struct kprobe *alloc_aggr_kprobe(struct kprobe *p) > return NULL; > > INIT_LIST_HEAD(&op->list); > + > + /* > + * copy gives arch_prepare_optimized_kprobe > + * more information > + */ > op->kp.addr = p->addr; > + copy_kprobe(p, &op->kp); > arch_prepare_optimized_kprobe(op); > > return &op->kp; >
On 2014/11/18 19:38, Masami Hiramatsu wrote: > Hi Wang, > > (2014/11/18 15:32), Wang Nan wrote: >> Copy old kprobe to newly alloced optimized_kprobe before >> arch_prepare_optimized_kprobe(). Original kprove can brings more >> information to optimizer. > > As I've asked you on the previous series, I prefer to transfer the > original kprobes to arch_prepare_optimized_kprobe(). > > OK, now I'll send you my patch. If you can agree, feel free to > pick that into your series. > Sorry. The new version series has heavy code changes in checker. I think I must miss real optprobes code during my coding. I will collect your patch and adjust my code in the next version. Thank you. > Thank you, > >> >> v1 -> v2: >> - Bugfix: copy p->addr when alloc_aggr_kprobe. >> >> Signed-off-by: Wang Nan <wangnan0@huawei.com> >> --- >> kernel/kprobes.c | 6 ++++++ >> 1 file changed, 6 insertions(+) >> >> diff --git a/kernel/kprobes.c b/kernel/kprobes.c >> index 3995f54..e9868ec 100644 >> --- a/kernel/kprobes.c >> +++ b/kernel/kprobes.c >> @@ -730,7 +730,13 @@ static struct kprobe *alloc_aggr_kprobe(struct kprobe *p) >> return NULL; >> >> INIT_LIST_HEAD(&op->list); >> + >> + /* >> + * copy gives arch_prepare_optimized_kprobe >> + * more information >> + */ >> op->kp.addr = p->addr; >> + copy_kprobe(p, &op->kp); >> arch_prepare_optimized_kprobe(op); >> >> return &op->kp; >> > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 3995f54..e9868ec 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -730,7 +730,13 @@ static struct kprobe *alloc_aggr_kprobe(struct kprobe *p) return NULL; INIT_LIST_HEAD(&op->list); + + /* + * copy gives arch_prepare_optimized_kprobe + * more information + */ op->kp.addr = p->addr; + copy_kprobe(p, &op->kp); arch_prepare_optimized_kprobe(op); return &op->kp;
Copy old kprobe to newly alloced optimized_kprobe before arch_prepare_optimized_kprobe(). Original kprove can brings more information to optimizer. v1 -> v2: - Bugfix: copy p->addr when alloc_aggr_kprobe. Signed-off-by: Wang Nan <wangnan0@huawei.com> --- kernel/kprobes.c | 6 ++++++ 1 file changed, 6 insertions(+)