linux-kernel - Re: Why add the general notification queue and its sources

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Message-ID: <CAKCoTu4h0t5YU5eVUbaj+=jKAZpkNBZjDyr6Y1kON9ywv=ceUA@mail.gmail.com>
Date:   Fri, 6 Sep 2019 15:41:01 -0400
From:   Ray Strode <rstrode@...hat.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     David Howells <dhowells@...hat.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Steven Whitehouse <swhiteho@...hat.com>,
        Nicolas Dichtel <nicolas.dichtel@...nd.com>, raven@...maw.net,
        keyrings@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-block <linux-block@...r.kernel.org>,
        Christian Brauner <christian@...uner.io>,
        LSM List <linux-security-module@...r.kernel.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Linux API <linux-api@...r.kernel.org>,
        Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        Al Viro <viro@...iv.linux.org.uk>,
        "Ray, Debarshi" <debarshi.ray@...il.com>,
        Robbie Harwood <rharwood@...hat.com>
Subject: Re: Why add the general notification queue and its sources

Hi,

On Fri, Sep 6, 2019 at 3:32 PM Ray Strode <rstrode@...hat.com> wrote:
> of course, one advantage of having the tickets kernel side is nfs could
> in theory access them directly, rather than up calling back to userspace...
No, that's not true actually, it's still going to need to go to
userspace to do hairy
context setup i guess...

so 🤷 dunno.