Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Tue, 19 Feb 2019 07:19:43 +0100 (CET)
From:   Thomas Gleixner <tglx@linutronix.de>
To:     =?GB2312?B?s8K7qrLF?= <chenhc@lemote.com>
cc:     Huacai Chen <chenhuacai@gmail.com>,
        Keith Busch <keith.busch@intel.com>,
        Bjorn Helgaas <helgaas@kernel.org>,
        Jens Axboe <axboe@kernel.dk>, Sagi Grimberg <sagi@grimberg.me>,
        linux-pci <linux-pci@vger.kernel.org>,
        LKML <linux-kernel@vger.kernel.org>,
        linux-nvme <linux-nvme@lists.infradead.org>,
        Ming Lei <ming.lei@redhat.com>,
        linux-block <linux-block@vger.kernel.org>,
        Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH V3 1/5] genirq/affinity: don't mark 'affd' as const
In-Reply-To: <tencent_6C5D1EC74B826B1E2F22293C@qq.com>
Message-ID: <alpine.DEB.2.21.1902190718160.1644@nanos.tec.linutronix.de>
References: <20190213105041.13537-1-ming.lei@redhat.com> <20190213105041.13537-2-ming.lei@redhat.com> <20190213150407.GB96272@google.com> <alpine.DEB.2.21.1902132112590.1659@nanos.tec.linutronix.de> <20190213213149.GB8027@localhost.localdomain>
 <alpine.DEB.2.21.1902132232560.1659@nanos.tec.linutronix.de> <20190213223711.GC8027@localhost.localdomain> <alpine.DEB.2.21.1902140949280.1659@nanos.tec.linutronix.de> <tencent_6460D33741AF25B57E7BE493@qq.com> <alpine.DEB.2.21.1902141430190.1561@nanos.tec.linutronix.de>
 <tencent_6C5D1EC74B826B1E2F22293C@qq.com>
User-Agent: Alpine 2.21 (DEB 202 2017-01-01)
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="8323329-723838276-1550557184=:1644"
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

  This message is in MIME format.  The first part should be readable text,
  while the remaining parts are likely unreadable without MIME-aware tools.

--8323329-723838276-1550557184=:1644
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8BIT

On Tue, 19 Feb 2019, 陈华才 wrote:
> 
> I've tested, this patch can fix the nvme problem, but it can't be applied
> to 4.19 because of different context. And, I still think my original solution
> (genirq/affinity: Assign default affinity to pre/post vectors) is correct.
> There may be similar problems except nvme.

As I explained you in great length, it is not correct because it's just
papering over the underlying problem.

Please stop advertising semantically broken duct tape solutions.

Thanks,

	tglx
--8323329-723838276-1550557184=:1644--