linux-kernel - Re: [for-linus][PATCH 5/5] fsdax: Remove unused trace events for dax insert mapping

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Message-ID: <20250603151924.532b4003@gandalf.local.home>
Date: Tue, 3 Jun 2025 15:19:24 -0400
From: Steven Rostedt <rostedt@...dmis.org>
To: Dan Williams <dan.j.williams@...el.com>
Cc: <linux-kernel@...r.kernel.org>, Masami Hiramatsu <mhiramat@...nel.org>,
 Mark Rutland <mark.rutland@....com>, Mathieu Desnoyers
 <mathieu.desnoyers@...icios.com>, Andrew Morton
 <akpm@...ux-foundation.org>, Shiyang Ruan <ruansy.fnst@...itsu.com>,
 "Darrick J. Wong" <djwong@...nel.org>, Ross Zwisler <zwisler@...nel.org>,
 "Alison Schofield" <alison.schofield@...el.com>
Subject: Re: [for-linus][PATCH 5/5] fsdax: Remove unused trace events for
 dax insert mapping

On Tue, 3 Jun 2025 11:13:58 -0700
Dan Williams <dan.j.williams@...el.com> wrote:

> Steven Rostedt wrote:
> > From: Steven Rostedt <rostedt@...dmis.org>
> > 
> > When the dax_fault_actor() helper was factored out, it removed the calls
> > to the dax_pmd_insert_mapping and dax_insert_mapping events but never
> > removed the events themselves. As each event created takes up memory
> > (roughly 5K each), this is a waste as it is never used.
> > 
> > Remove the unused dax_pmd_insert_mapping and dax_insert_mapping trace
> > events.
> > 
> > Link: https://lore.kernel.org/all/20250529130138.544ffec4@gandalf.local.home/
> > 
> > Cc: Dan Williams <dan.j.williams@...el.com>  
> 
> Acked-by: Dan Williams <dan.j.williams@...el.com>

Thanks!

-- Steve