netdev - Re: [PATCH net] rhashtable: fix crash due to mm api change

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Message-ID: <20220926100550.GA12777@breakpoint.cc>
Date:   Mon, 26 Sep 2022 12:05:50 +0200
From:   Florian Westphal <fw@...len.de>
To:     Herbert Xu <herbert@...dor.apana.org.au>
Cc:     Florian Westphal <fw@...len.de>, netdev@...r.kernel.org,
        tgraf@...g.ch, urezki@...il.com, Paolo Abeni <pabeni@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>, linux-kernel@...r.kernel.org,
        akpm@...ux-foundation.org, Martin Zaharinov <micron10@...il.com>,
        Michal Hocko <mhocko@...e.com>,
        Paolo Bonzini <pbonzini@...hat.com>, kvm@...r.kernel.org
Subject: Re: [PATCH net] rhashtable: fix crash due to mm api change

Herbert Xu <herbert@...dor.apana.org.au> wrote:
> On Mon, Sep 26, 2022 at 10:50:18AM +0200, Florian Westphal wrote:
> > Herbert Xu <herbert@...dor.apana.org.au> wrote:
> > > On Mon, Sep 26, 2022 at 10:31:39AM +0200, Florian Westphal wrote:
> > > >
> > > > This patch is partial revert of
> > > > commit 93f976b5190d ("lib/rhashtable: simplify bucket_table_alloc()"),
> > > > to avoid kvmalloc for ATOMIC case.
> > > 
> > > This patch should just be reverted.  If kvzalloc fails we should
> > > definitely know about it.
> > 
> > No idea what you mean, I am no mind reader.  Please consider
> > fixing this yourself, I am done with this crap.
> 
> I just meant that the patch quoted above should be completely
> reverted instead of partially reverted.

I don't understand that at all, since this means removal of
__GFP_NOWARN -- that makes no sense to me.