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From: Christopher Lameter <cl-vYTEC60ixJUAvxtiuMwx3w@public.gmane.org>
To: Michal Hocko <mhocko-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org>,
	Mike Kravetz
	<mike.kravetz-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>,
	linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Marek Szyprowski
	<m.szyprowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>,
	Michal Nazarewicz
	<mina86-deATy8a+UHjQT0dZR+AlfA@public.gmane.org>,
	"Aneesh Kumar K . V"
	<aneesh.kumar-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>,
	Joonsoo Kim <iamjoonsoo.kim-Hm3cg6mZ9cc@public.gmane.org>,
	Guy Shattah <sguy-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
	Anshuman Khandual
	<khandual-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>,
	Laura Abbott <labbott-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	Vlastimil Babka <vbabka-AlSwsSmVLrQ@public.gmane.org>
Subject: Re: [RFC PATCH 3/3] mm/map_contig: Add mmap(MAP_CONTIG) support
Date: Mon, 16 Oct 2017 11:02:24 -0500 (CDT)	[thread overview]
Message-ID: <alpine.DEB.2.20.1710161101310.12436@nuc-kabylake> (raw)
In-Reply-To: <20171016121808.m4sq3g5nxeyxoymc-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>

On Mon, 16 Oct 2017, Michal Hocko wrote:

> > So I mmap(MAP_CONTIG) 1GB working of working memory, prefer some data
> > structures there, maybe recieve from network, then decide to write
> > some and not write some other.
>
> Why would you want this?

Because we are receiving a 1GB block of data and then wan to write it to
disk. Maybe we want to modify things a bit and may not write all that we
received.

  parent reply	other threads:[~2017-10-16 16:02 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-03 23:56 [RFC] mmap(MAP_CONTIG) Mike Kravetz
2017-10-04 11:54 ` Michal Nazarewicz
2017-10-04 17:08   ` Mike Kravetz
2017-10-04 21:29     ` Laura Abbott
2017-10-04 13:49 ` Anshuman Khandual
2017-10-04 16:05   ` Christopher Lameter
2017-10-04 17:38     ` Mike Kravetz
2017-10-04 17:35   ` Mike Kravetz
2017-10-05  7:06 ` Vlastimil Babka
2017-10-05  8:58   ` Guy Shattah
2017-10-05 12:36     ` Guy Shattah
2017-10-05 14:30   ` Christopher Lameter
2017-10-12  1:46 ` [RFC PATCH 0/3] Add mmap(MAP_CONTIG) support Mike Kravetz
2017-10-12  1:46   ` [RFC PATCH 1/3] mm/map_contig: Add VM_CONTIG flag to vma struct Mike Kravetz
2017-10-12  1:46   ` [RFC PATCH 2/3] mm/map_contig: Use pre-allocated pages for VM_CONTIG mappings Mike Kravetz
2017-10-12 11:04     ` Anshuman Khandual
2017-10-12  1:46   ` [RFC PATCH 3/3] mm/map_contig: Add mmap(MAP_CONTIG) support Mike Kravetz
2017-10-12 11:22     ` Anshuman Khandual
2017-10-13 15:14       ` Christopher Lameter
2017-10-12 14:37     ` Michal Hocko
2017-10-12 17:19       ` Mike Kravetz
2017-10-13  8:40         ` Michal Hocko
2017-10-13 15:20           ` Christopher Lameter
2017-10-13 15:28             ` Michal Hocko
2017-10-13 15:42               ` Christopher Lameter
2017-10-13 15:47                 ` Michal Hocko
     [not found]                   ` <20171013154747.2jv7rtfqyyagiodn-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2017-10-13 15:56                     ` Christopher Lameter
2017-10-13 16:17                       ` Michal Hocko
2017-10-15  7:50                         ` Guy Shattah
2017-10-16  8:24                           ` Michal Hocko
2017-10-16  9:11                             ` Guy Shattah
2017-10-16 12:32                               ` Michal Hocko
     [not found]                                 ` <20171016123248.csntl6luxgafst6q-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2017-10-16 16:00                                   ` Christopher Lameter
2017-10-16 17:42                                     ` Michal Hocko
     [not found]                                       ` <20171016174229.pz3o4uhzz3qbrp6n-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2017-10-16 17:56                                         ` Christopher Lameter
2017-10-16 18:17                                           ` Michal Hocko
2017-10-23 15:25                                       ` David Nellans
2017-10-17 10:50                                 ` Guy Shattah
2017-10-17 10:59                                   ` Michal Hocko
2017-10-17 13:22                                   ` Michal Nazarewicz
2017-10-17 14:20                                     ` Guy Shattah
2017-10-17 17:44                                       ` Vlastimil Babka
2017-10-17 18:23                                       ` Mike Kravetz
2017-10-17 19:56                                         ` Vlastimil Babka
2017-10-16 10:33                           ` Michal Nazarewicz
2017-10-16 11:09                             ` Guy Shattah
2017-10-16 17:43                           ` Mike Kravetz
2017-10-16 18:07                             ` Michal Hocko
2017-10-16 20:32                               ` Mike Kravetz
2017-10-16 20:58                                 ` Michal Hocko
2017-10-16 21:03                                 ` Laura Abbott
2017-10-16 21:18                                   ` Mike Kravetz
2017-10-17  6:59                                 ` Vlastimil Babka
2017-10-15  6:58                   ` Pavel Machek
2017-10-16  8:18                     ` Michal Hocko
2017-10-16  9:54                       ` Pavel Machek
2017-10-16 12:18                         ` Michal Hocko
     [not found]                           ` <20171016121808.m4sq3g5nxeyxoymc-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2017-10-16 16:02                             ` Christopher Lameter [this message]
2017-10-16 17:33                               ` Michal Hocko
2017-10-16 17:53                                 ` Christopher Lameter
2017-10-15  8:07     ` Guy Shattah
2017-10-12 10:36   ` [RFC PATCH 0/3] " Anshuman Khandual
2017-10-12 14:25     ` Anshuman Khandual
2017-10-23 22:10 ` [RFC] mmap(MAP_CONTIG) Dave Hansen
2017-10-24 22:49   ` Mike Kravetz

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