linux-kernel - Re: [PATCH] exfat: Add ftrace support for exfat and add some tracepoints

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Message-ID: <20230710125149.6424268a@gandalf.local.home>
Date:   Mon, 10 Jul 2023 12:51:49 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     "Masami Hiramatsu (Google)" <mhiramat@...nel.org>
Cc:     Zehao Zhang <zhangzehao@...o.com>, linkinjeon@...nel.org,
        sj1557.seo@...sung.com, linux-kernel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-trace-kernel@...r.kernel.org
Subject: Re: [PATCH] exfat: Add ftrace support for exfat and add some
 tracepoints

On Tue, 11 Jul 2023 01:37:23 +0900
Masami Hiramatsu (Google) <mhiramat@...nel.org> wrote:

> It seems like most of them are address_space_operations' operators.
> Is that OK to define those events (~= user exposed interface) from
> exFAT filesystem? I wonder why we can not make a generic VFS events
> for those. (Or all FS-wide generic events).

Probably because the VFS maintainer has NACK'd all trace events in the
generic VFS subsystem :-(

-- Steve