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From: Jason Gunthorpe <jgg@ziepe.ca>
To: Ira Weiny <ira.weiny@intel.com>
Cc: dave@stgolabs.net, jack@suse.cz, kvm@vger.kernel.org,
	atull@kernel.org, aik@ozlabs.ru, linux-fpga@vger.kernel.org,
	linux-kernel@vger.kernel.org, kvm-ppc@vger.kernel.org,
	Daniel Jordan <daniel.m.jordan@oracle.com>,
	linux-mm@kvack.org, alex.williamson@redhat.com, mdf@kernel.org,
	akpm@linux-foundation.org, linuxppc-dev@lists.ozlabs.org,
	cl@linux.com, hao.wu@intel.com
Subject: Re: [PATCH 0/5] use pinned_vm instead of locked_vm to account pinned pages
Date: Thu, 14 Feb 2019 15:16:29 -0700	[thread overview]
Message-ID: <20190214221629.GD1739@ziepe.ca> (raw)
In-Reply-To: <20190214214650.GB7512@iweiny-DESK2.sc.intel.com>

On Thu, Feb 14, 2019 at 01:46:51PM -0800, Ira Weiny wrote:

> > > > Really unclear how to fix this. The pinned/locked split with two
> > > > buckets may be the right way.
> > > 
> > > Are you suggesting that we have 2 user limits?
> > 
> > This is what RDMA has done since CL's patch.
> 
> I don't understand?  What is the other _user_ limit (other than
> RLIMIT_MEMLOCK)?

With todays implementation RLIMIT_MEMLOCK covers two user limits,
total number of pinned pages and total number of mlocked pages. The
two are different buckets and not summed.

Jason

  reply	other threads:[~2019-02-14 22:18 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-11 22:44 [PATCH 0/5] use pinned_vm instead of locked_vm to account pinned pages Daniel Jordan
2019-02-11 22:44 ` [PATCH 1/5] vfio/type1: " Daniel Jordan
2019-02-11 22:56   ` Jason Gunthorpe
2019-02-11 23:11     ` Daniel Jordan
2019-02-12 18:41       ` Alex Williamson
2019-02-13  0:26         ` Daniel Jordan
2019-02-13 20:03           ` Alex Williamson
2019-02-13 23:07             ` Jason Gunthorpe
2019-02-14  1:46             ` Daniel Jordan
2019-02-11 22:44 ` [PATCH 2/5] vfio/spapr_tce: " Daniel Jordan
2019-02-12  6:56   ` Alexey Kardashevskiy
2019-02-12 16:50     ` Christopher Lameter
2019-02-12 17:18       ` Daniel Jordan
2019-02-13  0:37         ` Alexey Kardashevskiy
2019-02-12 18:56     ` Alex Williamson
2019-02-13  0:34       ` Alexey Kardashevskiy
2019-02-11 22:44 ` [PATCH 3/5] fpga/dlf/afu: " Daniel Jordan
2019-02-11 22:44 ` [PATCH 4/5] powerpc/mmu: " Daniel Jordan
2019-02-13  1:14   ` kbuild test robot
2019-02-11 22:44 ` [PATCH 5/5] kvm/book3s: " Daniel Jordan
2019-02-13  1:43   ` kbuild test robot
2019-02-11 22:54 ` [PATCH 0/5] " Jason Gunthorpe
2019-02-11 23:15   ` Daniel Jordan
2019-02-14  1:53   ` Ira Weiny
2019-02-14  6:00     ` Jason Gunthorpe
2019-02-14 19:33       ` Ira Weiny
2019-02-14 20:12         ` Jason Gunthorpe
2019-02-14 21:46           ` Ira Weiny
2019-02-14 22:16             ` Jason Gunthorpe [this message]
2019-02-15 15:26               ` Christopher Lameter

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