linux-kernel - Re: Restartable Sequences system call merged into Linux

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Message-ID: <fffe36dd-a7f1-36fb-561b-b6a30ba9e11d@redhat.com>
Date:   Fri, 15 Jun 2018 07:10:45 +0200
From:   Florian Weimer <fweimer@...hat.com>
To:     Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Cc:     Pavel Machek <pavel@....cz>, carlos <carlos@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
        Boqun Feng <boqun.feng@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        libc-alpha <libc-alpha@...rceware.org>
Subject: Re: Restartable Sequences system call merged into Linux

On 06/14/2018 03:46 PM, Mathieu Desnoyers wrote:
> This would allow registering various TLS data structures with a single
> system call without hindering flexibility on the user-space side. For
> instance, we could still use initial-exec and the __rseq_abi symbol for
> rseq with this approach.
> 
> Thoughts ?

Isn't this just a very narrow case of the usual batched syscalls 
proposal? 8-)

Florian