linux-kernel - Re: [PATCH 3/5] ppoll: use __kernel

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Message-ID: <CAK8P3a1zQBQz1ZtNZzkceut4k3eLjOjCwvOtBdEmc9cTsaFz+g@mail.gmail.com>
Date:   Fri, 14 Sep 2018 17:57:41 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Deepa Dinamani <deepa.kernel@...il.com>
Cc:     Al Viro <viro@...iv.linux.org.uk>,
        Thomas Gleixner <tglx@...utronix.de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        y2038 Mailman List <y2038@...ts.linaro.org>,
        Linux FS-devel Mailing List <linux-fsdevel@...r.kernel.org>,
        Linux API <linux-api@...r.kernel.org>,
        linux-aio <linux-aio@...ck.org>
Subject: Re: [PATCH 3/5] ppoll: use __kernel_timespec

On Sat, Sep 1, 2018 at 10:48 PM Deepa Dinamani <deepa.kernel@...il.com> wrote:

> +
> +       /* We can restart this syscall, usually */
> +       if (ret == -EINTR) {
> +               restore_user_sigmask(sigmask, &sigsaved);
> +               ret = -ERESTARTNOHAND;
> +       }

I need a little help understanding this part: In the two existing copies of that
function, you have changed it to

        restore_user_sigmask(sigmask, &sigsaved);
        if (ret == -EINTR)
                ret = -ERESTARTNOHAND;

in the previous patch, but the new new copies you add here do

       if (ret == -EINTR) {
               restore_user_sigmask(sigmask, &sigsaved);
               ret = -ERESTARTNOHAND;
       }

Is that intentional, or did you accidently leave a version in here that
you had changed afterwards?

       Arnd