From: Changbin Du <changbin.du@gmail.com>
To: Changbin Du <changbin.du@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>,
Ingo Molnar <mingo@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ftrace: simplify ftrace hash lookup code
Date: Mon, 9 Sep 2019 08:05:03 +0800 [thread overview]
Message-ID: <20190909000501.mstkqzklma7pm76d@mail.google.com> (raw)
In-Reply-To: <20190908120545.11614-1-changbin.du@gmail.com>
On Sun, Sep 08, 2019 at 08:05:45PM +0800, Changbin Du wrote:
> diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
> index 005f08629b8b..74162bc4024d 100644
> --- a/kernel/trace/trace.h
> +++ b/kernel/trace/trace.h
> @@ -941,11 +941,6 @@ static inline int ftrace_graph_addr(struct ftrace_graph_ent *trace)
>
> preempt_disable_notrace();
>
> - if (ftrace_hash_empty(ftrace_graph_hash)) {
> - ret = 1;
> - goto out;
> - }
> -
Sorry, This remove is wrong. Will update change.
> if (ftrace_lookup_ip(ftrace_graph_hash, addr)) {
>
> /*
> @@ -967,7 +962,6 @@ static inline int ftrace_graph_addr(struct ftrace_graph_ent *trace)
> ret = 1;
> }
>
> -out:
> preempt_enable_notrace();
> return ret;
> }
> --
> 2.20.1
>
--
Cheers,
Changbin Du
prev parent reply other threads:[~2019-09-09 0:05 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-08 12:05 Changbin Du
2019-09-09 0:05 ` Changbin Du [this message]
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