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From: Greg KH <gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>
To: "taoyi.ty" <escape-KPsoFbNs7GizrGE5bRqYAgC/G2K4zDHf@public.gmane.org>
Cc: tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
	lizefan.x-EC8Uxl6Npydl57MIdRCFDg@public.gmane.org,
	hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org,
	mcgrof-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
	keescook-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org,
	yzaikin-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	shanpeic-KPsoFbNs7GizrGE5bRqYAgC/G2K4zDHf@public.gmane.org
Subject: Re: [RFC PATCH 2/2] support cgroup pool in v1
Date: Fri, 10 Sep 2021 08:01:03 +0200	[thread overview]
Message-ID: <YTr0n+lRtgwXXOD/@kroah.com> (raw)
In-Reply-To: <a91912e2-606a-0868-7a0c-38dec5012b02-KPsoFbNs7GizrGE5bRqYAgC/G2K4zDHf@public.gmane.org>

On Fri, Sep 10, 2021 at 10:15:02AM +0800, taoyi.ty wrote:
> 
> On 2021/9/8 下午8:35, Greg KH wrote:
> > I thought cgroup v1 was "obsolete" and not getting new features added to
> > it.  What is wrong with just using cgroups 2 instead if you have a
> > problem with the v1 interface?
> > 
> 
> There are two reasons for developing based on cgroup v1:
> 
> 
> 1. In the Internet scenario, a large number of services
> 
> are still using cgroup v1, cgroup v2 has not yet been
> 
> popularized.

That does not mean we have to add additional kernel complexity for an
obsolete feature that we are not adding support for anymore.  If
anything, this would be a good reason to move those userspace services
to the new api to solve this issue, right?

thanks,

greg k-h

  parent reply	other threads:[~2021-09-10  6:01 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-08 12:15 [RFC PATCH 0/2] support cgroup pool in v1 Yi Tao
2021-09-08 12:15 ` [RFC PATCH 1/2] add pinned flags for kernfs node Yi Tao
     [not found]   ` <e753e449240bfc43fcb7aa26dca196e2f51e0836.1631102579.git.escape-KPsoFbNs7GizrGE5bRqYAgC/G2K4zDHf@public.gmane.org>
     [not found]     ` <cover.1631102579.git.escape-KPsoFbNs7GizrGE5bRqYAgC/G2K4zDHf@public.gmane.org>
2021-09-08 12:15       ` [RFC PATCH 2/2] support cgroup pool in v1 Yi Tao
     [not found]         ` <03e2b37678c9b2aef4f5dee303b3fb87a565d56b.1631102579.git.escape-KPsoFbNs7GizrGE5bRqYAgC/G2K4zDHf@public.gmane.org>
2021-09-08 12:35           ` Greg KH
     [not found]             ` <084930d2-057a-04a7-76d1-b2a7bd37deb0@linux.alibaba.com>
2021-09-09 13:27               ` Greg KH
2021-09-10  2:20                 ` taoyi.ty
     [not found]             ` <YTiuLES5qd086qRu-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2021-09-10  2:15               ` taoyi.ty
     [not found]                 ` <a91912e2-606a-0868-7a0c-38dec5012b02-KPsoFbNs7GizrGE5bRqYAgC/G2K4zDHf@public.gmane.org>
2021-09-10  6:01                   ` Greg KH [this message]
2021-09-08 12:35     ` [RFC PATCH 1/2] add pinned flags for kernfs node Greg KH
2021-09-10  2:14       ` taoyi.ty
     [not found]         ` <3d871bd0-dab5-c9ca-61b9-6aa137fa9fdf-KPsoFbNs7GizrGE5bRqYAgC/G2K4zDHf@public.gmane.org>
2021-09-10  6:00           ` Greg KH
2021-09-08 12:37 ` [RFC PATCH 0/2] support cgroup pool in v1 Greg KH
2021-09-10  2:11   ` taoyi.ty
     [not found]     ` <a0c67d71-8045-d8b6-40c2-39f2603ec7c1-KPsoFbNs7GizrGE5bRqYAgC/G2K4zDHf@public.gmane.org>
2021-09-10  6:01       ` Greg KH
2021-09-10 16:49       ` Tejun Heo
     [not found]         ` <YTuMl+cC6FyA/Hsv-NiLfg/pYEd1N0TnZuCh8vA@public.gmane.org>
2021-09-13 14:20           ` Christian Brauner
2021-09-13 16:24             ` Tejun Heo
2021-09-08 16:35 ` Tejun Heo
2021-09-10  2:12   ` taoyi.ty

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