From: Fam Zheng <famz-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: Jonathan Corbet <corbet-T1hC0tSOHrs@public.gmane.org>
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>,
Ingo Molnar <mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
"H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>,
x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
Alexander Viro
<viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org>,
Andrew Morton
<akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
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Mike Frysinger <vapier-aBrp7R+bbdUdnm+yROfE0A@public.gmane.org>,
"Theodore Ts'o" <tytso-3s7WtUTddSA@public.gmane.org>,
Heiko Carstens
<heiko.carstens-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>,
Rasmus Villemoes
<linux-qQsb+v5E8BnlAoU/VqSP6n9LOBIZ5rWg@public.gmane.org>,
Rashika Kheria
<rashika.kheria-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Hugh Dickins <hughd-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
Mathieu Desnoyers
<mathieu.desnoyers-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>,
Peter Zijlstra <peter
Subject: Re: [PATCH RFC v3 0/7] epoll: Introduce new syscalls, epoll_ctl_batch and epoll_pwait1
Date: Mon, 16 Feb 2015 09:02:24 +0800 [thread overview]
Message-ID: <20150216010224.GA32421@ad.nay.redhat.com> (raw)
In-Reply-To: <20150215150011.0340686c-T1hC0tSOHrs@public.gmane.org>
On Sun, 02/15 15:00, Jonathan Corbet wrote:
> On Fri, 13 Feb 2015 17:03:56 +0800
> Fam Zheng <famz-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
>
> > SYNOPSIS
> >
> > #include <sys/epoll.h>
> >
> > int epoll_pwait1(int epfd, int flags,
> > struct epoll_event *events,
> > int maxevents,
> > struct epoll_wait_params *params);
>
> Quick, possibly dumb question: might it make sense to also pass in
> sizeof(struct epoll_wait_params)? That way, when somebody wants to add
> another parameter in the future, the kernel can tell which version is in
> use and they won't have to do an epoll_pwait2()?
>
Flags can be used for that, if the change is not radically different.
Fam
next prev parent reply other threads:[~2015-02-16 1:02 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-13 9:03 [PATCH RFC v3 0/7] epoll: Introduce new syscalls, epoll_ctl_batch and epoll_pwait1 Fam Zheng
2015-02-13 9:03 ` [PATCH RFC v3 2/7] epoll: Specify clockid explicitly Fam Zheng
2015-02-13 9:03 ` [PATCH RFC v3 3/7] epoll: Extract ep_ctl_do Fam Zheng
[not found] ` <1423818243-15410-1-git-send-email-famz-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-02-13 9:03 ` [PATCH RFC v3 1/7] epoll: Extract epoll_wait_do and epoll_pwait_do Fam Zheng
2015-02-13 9:04 ` [PATCH RFC v3 4/7] epoll: Add implementation for epoll_ctl_batch Fam Zheng
2015-02-13 9:04 ` [PATCH RFC v3 5/7] x86: Hook up epoll_ctl_batch syscall Fam Zheng
2015-02-13 9:04 ` [PATCH RFC v3 6/7] epoll: Add implementation for epoll_pwait1 Fam Zheng
2015-02-13 9:04 ` [PATCH RFC v3 7/7] x86: Hook up epoll_pwait1 syscall Fam Zheng
2015-02-13 9:53 ` [PATCH RFC v3 0/7] epoll: Introduce new syscalls, epoll_ctl_batch and epoll_pwait1 Omar Sandoval
2015-02-15 15:16 ` Michael Kerrisk (man-pages)
2015-02-15 22:00 ` Jonathan Corbet
[not found] ` <20150215150011.0340686c-T1hC0tSOHrs@public.gmane.org>
2015-02-16 1:02 ` Fam Zheng [this message]
2015-02-16 7:25 ` Seymour, Shane M
[not found] ` <DDB9C85B850785449757F9914A034FCB3BF41130-4I1V4pQFGigSZAcGdq5asR6epYMZPwEe5NbjCUgZEJk@public.gmane.org>
2015-02-16 8:12 ` Fam Zheng
2015-02-18 18:49 ` Ingo Molnar
2015-02-25 3:30 ` Fam Zheng
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