linux-kernel - Re: [RFC] /dev/ioasid uAPI proposal

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Message-ID: <51e060a3-fc59-0a13-5955-71692b14eed8@metux.net>
Date:   Mon, 7 Jun 2021 15:30:21 +0200
From:   "Enrico Weigelt, metux IT consult" <lkml@...ux.net>
To:     Jason Gunthorpe <jgg@...dia.com>, Jason Wang <jasowang@...hat.com>
Cc:     "Tian, Kevin" <kevin.tian@...el.com>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Liu Yi L <yi.l.liu@...ux.intel.com>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        Jonathan Corbet <corbet@....net>,
        "iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>,
        LKML <linux-kernel@...r.kernel.org>,
        "Alex Williamson (alex.williamson@...hat.com)\"\"" 
        <alex.williamson@...hat.com>, David Woodhouse <dwmw2@...radead.org>
Subject: Re: [RFC] /dev/ioasid uAPI proposal

On 02.06.21 19:21, Jason Gunthorpe wrote:

Hi,

> Not really, once one thing in an applicate uses a large number FDs the
> entire application is effected. If any open() can return 'very big
> number' then nothing in the process is allowed to ever use select.

isn't that a bug in select() ?

--mtx

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Enrico Weigelt, metux IT consult
Free software and Linux embedded engineering
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