From: "J. Bruce Fields" <bfields@redhat.com>
To: Trond Myklebust <trondmy@hammerspace.com>
Cc: "tj@kernel.org" <tj@kernel.org>,
"torvalds@linux-foundation.org" <torvalds@linux-foundation.org>,
"jlayton@redhat.com" <jlayton@redhat.com>,
"linux-nfs@vger.kernel.org" <linux-nfs@vger.kernel.org>,
"shli@fb.com" <shli@fb.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"dhowells@redhat.com" <dhowells@redhat.com>,
"oleg@redhat.com" <oleg@redhat.com>
Subject: Re: [PATCH 0/4] allow multiple kthreadd's
Date: Fri, 1 May 2020 15:22:19 -0400 [thread overview]
Message-ID: <20200501192219.GG9191@pick.fieldses.org> (raw)
In-Reply-To: <d937c9956c0edb0d6fefb9f7dc826367015db4aa.camel@hammerspace.com>
On Fri, May 01, 2020 at 07:05:46PM +0000, Trond Myklebust wrote:
> On Fri, 2020-05-01 at 14:49 -0400, J. Bruce Fields wrote:
> > On Fri, May 01, 2020 at 02:21:54PM -0400, Tejun Heo wrote:
> > > Hello,
> > >
> > > On Fri, May 01, 2020 at 10:59:24AM -0700, Linus Torvalds wrote:
> > > > Which kind of makes me want to point a finger at Tejun. But it's
> > > > been
> > > > mostly PeterZ touching this file lately..
> > >
> > > Looks fine to me too. I don't quite understand the usecase tho. It
> > > looks
> > > like all it's being used for is to tag some kthreads as belonging
> > > to the
> > > same group.
> >
> > Pretty much.
>
> Wen running an instance of knfsd from inside a container, you want to
> be able to have the knfsd kthreads be parented to the container init
> process so that they get killed off when the container is killed.
>
> Right now, we can easily leak those kernel threads simply by killing
> the container.
Oh, got it.
Currently knfsd supports nfs service in containers, but it uses a single
set of threads to serve requests from any container. It should shut the
server threads down when the last container using them goes away.
--b.
next prev parent reply other threads:[~2020-05-01 19:22 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-01 16:01 [PATCH 0/4] allow multiple kthreadd's J. Bruce Fields
2020-05-01 16:01 ` [PATCH 1/4] kthreads: minor kthreadd refactoring J. Bruce Fields
2020-05-01 16:01 ` [PATCH 2/4] kthreads: Simplify tsk_fork_get_node J. Bruce Fields
2020-05-01 16:01 ` [PATCH 3/4] kthreads: allow multiple kthreadd's J. Bruce Fields
2020-05-01 16:01 ` [PATCH 4/4] kthreads: allow cloning threads with different flags J. Bruce Fields
2020-05-01 17:59 ` [PATCH 0/4] allow multiple kthreadd's Linus Torvalds
2020-05-01 18:21 ` Tejun Heo
2020-05-01 18:30 ` Linus Torvalds
2020-05-01 19:02 ` J. Bruce Fields
2020-05-01 18:49 ` J. Bruce Fields
2020-05-01 19:05 ` Trond Myklebust
2020-05-01 19:20 ` tj
2020-05-01 19:22 ` J. Bruce Fields [this message]
2020-05-05 2:15 ` J. Bruce Fields
2020-05-05 15:54 ` Tejun Heo
2020-05-05 16:23 ` J. Bruce Fields
2020-05-05 21:01 ` J. Bruce Fields
2020-05-05 21:09 ` Tejun Heo
2020-05-05 21:25 ` J. Bruce Fields
2020-05-06 15:36 ` J. Bruce Fields
2020-05-06 15:39 ` Tejun Heo
2020-05-06 15:54 ` J. Bruce Fields
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