From: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
To: "Jeff Squyres (jsquyres)"
<jsquyres-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
Cc: Liran Liss <liranl-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
Haggai Eran <haggaie-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
Or Gerlitz <ogerlitz-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
"linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Shachar Raindel <raindel-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Subject: Re: Status of "ummunot" branch?
Date: Wed, 12 Jun 2013 15:17:42 -0600 [thread overview]
Message-ID: <20130612211742.GA8625@obsidianresearch.com> (raw)
In-Reply-To: <EF66BBEB19BADC41AC8CCF5F684F07FC4F6808D7-nsZYYkk5h5QQ2GdVW7+PtKBKnGwkPULj@public.gmane.org>
On Wed, Jun 12, 2013 at 09:10:57PM +0000, Jeff Squyres (jsquyres) wrote:
> > Another way to look at it is "specify IO access permissions" for
> > address space ranges. This could be useful to implement a buffer
> > pool to be used for a specific MR only, yet still map/unmap memory
> > within this pool on the fly to optimize physical memory
> > utilization. In this case, you would provide smaller ranges than
> > 2^64...
> Hmm; I'm not sure I understand.
>
> Userspace doesn't control what virtual addresses it gets back from
> mmap/etc.
Yes, it can, via MAP_FIXED. There are lots of fun tricks you can play
using that.
Jason
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next prev parent reply other threads:[~2013-06-12 21:17 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-28 17:51 Status of "ummunot" branch? Jeff Squyres (jsquyres)
[not found] ` <EF66BBEB19BADC41AC8CCF5F684F07FC4F643196-nsZYYkk5h5QQ2GdVW7+PtKBKnGwkPULj@public.gmane.org>
2013-05-28 17:52 ` Roland Dreier
[not found] ` <CAL1RGDUops1ju6zU=w3vKxcUcLHp6XJFKfBTDr4nm397UkhaYA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-05-28 18:30 ` Jeff Squyres (jsquyres)
2013-05-29 8:53 ` Or Gerlitz
[not found] ` <CAJZOPZJc2Dq2jQgRspP_2c1j=4aJ40UxcBEcyiY_mhHPX1ptPw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-05-29 22:56 ` Jeff Squyres (jsquyres)
[not found] ` <EF66BBEB19BADC41AC8CCF5F684F07FC4F64AAB7-nsZYYkk5h5QQ2GdVW7+PtKBKnGwkPULj@public.gmane.org>
2013-05-30 5:09 ` Or Gerlitz
[not found] ` <51A6DEEC.40305-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2013-05-30 15:52 ` Jeff Squyres (jsquyres)
2013-06-04 1:24 ` Jeff Squyres (jsquyres)
[not found] ` <EF66BBEB19BADC41AC8CCF5F684F07FC4F657918-nsZYYkk5h5QQ2GdVW7+PtKBKnGwkPULj@public.gmane.org>
2013-06-04 8:37 ` Or Gerlitz
[not found] ` <51ADA761.2080107-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2013-06-04 9:54 ` Haggai Eran
[not found] ` <51ADB948.5080903-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2013-06-04 10:56 ` Jeff Squyres (jsquyres)
[not found] ` <EF66BBEB19BADC41AC8CCF5F684F07FC4F659155-nsZYYkk5h5QQ2GdVW7+PtKBKnGwkPULj@public.gmane.org>
2013-06-04 11:50 ` Haggai Eran
[not found] ` <51ADD489.3020902-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2013-06-04 17:04 ` Jason Gunthorpe
[not found] ` <20130604170441.GA13745-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2013-06-05 7:09 ` Haggai Eran
2013-06-04 20:13 ` Jeff Squyres (jsquyres)
[not found] ` <EF66BBEB19BADC41AC8CCF5F684F07FC4F65AE40-nsZYYkk5h5QQ2GdVW7+PtKBKnGwkPULj@public.gmane.org>
2013-06-05 7:14 ` Haggai Eran
[not found] ` <51AEE53C.2090603-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2013-06-05 12:45 ` Jeff Squyres (jsquyres)
[not found] ` <EF66BBEB19BADC41AC8CCF5F684F07FC4F65C855-nsZYYkk5h5QQ2GdVW7+PtKBKnGwkPULj@public.gmane.org>
2013-06-05 13:39 ` Haggai Eran
[not found] ` <51AF3FA8.7000900-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2013-06-05 16:53 ` Jeff Squyres (jsquyres)
[not found] ` <EF66BBEB19BADC41AC8CCF5F684F07FC4F65D5D3-nsZYYkk5h5QQ2GdVW7+PtKBKnGwkPULj@public.gmane.org>
2013-06-05 17:14 ` Jason Gunthorpe
[not found] ` <20130605171426.GC30184-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2013-06-05 18:10 ` Jeff Squyres (jsquyres)
[not found] ` <EF66BBEB19BADC41AC8CCF5F684F07FC4F65DC0D-nsZYYkk5h5QQ2GdVW7+PtKBKnGwkPULj@public.gmane.org>
2013-06-05 18:18 ` Jason Gunthorpe
[not found] ` <20130605181853.GB1946-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2013-06-05 18:45 ` Jeff Squyres (jsquyres)
[not found] ` <EF66BBEB19BADC41AC8CCF5F684F07FC4F65DF6F-nsZYYkk5h5QQ2GdVW7+PtKBKnGwkPULj@public.gmane.org>
2013-06-05 19:05 ` Jason Gunthorpe
[not found] ` <20130605190529.GA3044-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2013-06-06 2:58 ` Jeff Squyres (jsquyres)
2013-06-06 5:52 ` Haggai Eran
[not found] ` <51B023B9.9050000-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2013-06-06 23:33 ` Jeff Squyres (jsquyres)
[not found] ` <EF66BBEB19BADC41AC8CCF5F684F07FC4F66B79C-nsZYYkk5h5QQ2GdVW7+PtKBKnGwkPULj@public.gmane.org>
2013-06-07 22:59 ` Jeff Squyres (jsquyres)
[not found] ` <EF66BBEB19BADC41AC8CCF5F684F07FC4F66E403-nsZYYkk5h5QQ2GdVW7+PtKBKnGwkPULj@public.gmane.org>
2013-06-07 23:57 ` Jason Gunthorpe
[not found] ` <20130607235731.GA25942-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2013-06-10 9:17 ` Liran Liss
2013-06-10 14:49 ` Jeff Squyres (jsquyres)
[not found] ` <EF66BBEB19BADC41AC8CCF5F684F07FC4F676E59-nsZYYkk5h5QQ2GdVW7+PtKBKnGwkPULj@public.gmane.org>
2013-06-10 15:56 ` Liran Liss
[not found] ` <D554B471892C914E90E136467281724DAD695B50-fViJhHBwANKuSA5JZHE7gA@public.gmane.org>
2013-06-12 21:10 ` Jeff Squyres (jsquyres)
[not found] ` <EF66BBEB19BADC41AC8CCF5F684F07FC4F6808D7-nsZYYkk5h5QQ2GdVW7+PtKBKnGwkPULj@public.gmane.org>
2013-06-12 21:17 ` Jason Gunthorpe [this message]
[not found] ` <20130612211742.GA8625-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2013-06-14 22:48 ` Jeff Squyres (jsquyres)
2013-06-10 17:26 ` Jason Gunthorpe
[not found] ` <20130610172627.GC2391-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2013-06-12 21:18 ` Jeff Squyres (jsquyres)
[not found] ` <EF66BBEB19BADC41AC8CCF5F684F07FC4F680A2B-nsZYYkk5h5QQ2GdVW7+PtKBKnGwkPULj@public.gmane.org>
2013-06-12 21:47 ` Jason Gunthorpe
[not found] ` <20130612214708.GD8625-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2013-06-14 22:53 ` Jeff Squyres (jsquyres)
[not found] ` <EF66BBEB19BADC41AC8CCF5F684F07FC4F6886C8-nsZYYkk5h5QQ2GdVW7+PtKBKnGwkPULj@public.gmane.org>
2013-06-14 23:11 ` Jason Gunthorpe
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