linux-kernel - Re: [PATCH v4 00/34] Printbufs - new data structure for building strings

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Message-ID: <Yq/9mHZ4opmz+df9@casper.infradead.org>
Date:   Mon, 20 Jun 2022 05:54:48 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     David Laight <David.Laight@...lab.com>
Cc:     'Kent Overstreet' <kent.overstreet@...il.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "pmladek@...e.com" <pmladek@...e.com>,
        "rostedt@...dmis.org" <rostedt@...dmis.org>,
        "enozhatsky@...omium.org" <enozhatsky@...omium.org>,
        "linux@...musvillemoes.dk" <linux@...musvillemoes.dk>
Subject: Re: [PATCH v4 00/34] Printbufs - new data structure for building
 strings

On Mon, Jun 20, 2022 at 04:19:31AM +0000, David Laight wrote:
> I really think that is a bad idea.
> printk() already uses a lot of stack, anything doing a recursive
> call is just making that worse.
> Especially since these calls can often be in error paths
> which are not often tested and can already be on deep stacks.

You made this complaint last time and I challenged you to provide data.
You have not, as yet, provided data.