linux-kernel - Re: [PATCH v2 4/5] bootconfig: Free copied bootconfig data after boot

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Message-Id: <20210915104550.99a35ef0f1b0e944febf3293@kernel.org>
Date:   Wed, 15 Sep 2021 10:45:50 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Steven Rostedt <rostedt@...dmis.org>,
        Mike Rapoport <rppt@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>, Linux-MM <linux-mm@...ck.org>,
        Vlastimil Babka <vbabka@...e.cz>
Subject: Re: [PATCH v2 4/5] bootconfig: Free copied bootconfig data after
 boot

On Tue, 14 Sep 2021 18:13:51 -0700
Linus Torvalds <torvalds@...ux-foundation.org> wrote:

> On Tue, Sep 14, 2021 at 5:53 PM Masami Hiramatsu <mhiramat@...nel.org> wrote:
> >
> > Free copied bootconfig data after booting kernel because that
> > data will not be used anymore.
> 
> Don't do this.
> 
> You have already passed in that 'copy' to the xbc code, and
> xbc_destroy_all() should just free it.
> 
> Don't add new pointless variables to keep track of state that somebody
> else already keeps track of.

Ah, OK. So when I pass the copy, the ownership should be passed too.

Thank you,

> 
>            Linus


-- 
Masami Hiramatsu <mhiramat@...nel.org>