netdev - Re: Re: [PATCH V3] mm: prevent page_frag_alloc() from corrupting the memory

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Message-ID: <CAFL455mXFY5AFOoXxhpUY6EkPzc1677cRPQ8UX-RSykhm_52Nw@mail.gmail.com>
Date:   Mon, 18 Jul 2022 17:25:00 +0200
From:   Maurizio Lombardi <mlombard@...hat.com>
To:     Chen Lin <chen45464546@....com>
Cc:     Alexander Duyck <alexander.duyck@...il.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-mm <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Netdev <netdev@...r.kernel.org>
Subject: Re: Re: [PATCH V3] mm: prevent page_frag_alloc() from corrupting the memory

po 18. 7. 2022 v 16:40 odesílatel Chen Lin <chen45464546@....com> napsal:
>
> But the original intention of page frag interface is indeed to allocate memory
> less than one page. It's not a good idea to  complicate the definition of
> "page fragment".

I see your point, I just don't think it makes much sense to break
drivers here and there
when a practically identical 2-lines patch can fix the memory corruption bug
without changing a single line of code in the drivers.

By the way, I will wait for the maintainers to decide on the matter.

Maurizio