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From: Paolo Bonzini <bonzini@gnu.org>
To: Dmitry Potapov <dpotapov@gmail.com>
Cc: Johannes Schindelin <Johannes.Schindelin@gmx.de>,
	Zygo Blaxell <zblaxell@esightcorp.com>,
	Ilari Liusvaara <ilari.liusvaara@elisanet.fi>,
	Thomas Rast <trast@student.ethz.ch>,
	Jonathan Nieder <jrnieder@gmail.com>,
	git@vger.kernel.org
Subject: Re: [PATCH] don't use mmap() to hash files
Date: Mon, 15 Feb 2010 08:48:06 +0100	[thread overview]
Message-ID: <4B78FC36.1090108@gnu.org> (raw)
In-Reply-To: <37fcd2781002141156n7e2b9673s1eb6c12869facdb2@mail.gmail.com>

On 02/14/2010 08:56 PM, Dmitry Potapov wrote:
> It may not work without enough swap space

No, the kernel will use the file itself as "swap" if it has to page out 
the memory (since the mmap is PROT_READ).

Paolo

  parent reply	other threads:[~2010-02-15  7:48 UTC|newest]

Thread overview: 84+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20100211234753.22574.48799.reportbug@gibbs.hungrycats.org>
2010-02-12  0:27 ` Bug#569505: git-core: 'git add' corrupts repository if the working directory is modified as it runs Jonathan Nieder
2010-02-12  1:23   ` Zygo Blaxell
2010-02-13 12:12     ` Jonathan Nieder
2010-02-13 13:39       ` Ilari Liusvaara
2010-02-13 14:39         ` Thomas Rast
2010-02-13 16:29           ` Ilari Liusvaara
2010-02-13 22:09             ` Dmitry Potapov
2010-02-13 22:37               ` Zygo Blaxell
2010-02-14  1:18                 ` [PATCH] don't use mmap() to hash files Dmitry Potapov
2010-02-14  1:37                   ` Junio C Hamano
2010-02-14  2:18                     ` Dmitry Potapov
2010-02-14  3:14                       ` Junio C Hamano
2010-02-14 11:14                         ` Thomas Rast
2010-02-14 11:46                           ` Junio C Hamano
2010-02-14  1:53                   ` Johannes Schindelin
2010-02-14  2:00                     ` Junio C Hamano
2010-02-14  2:42                     ` Dmitry Potapov
2010-02-14 11:07                       ` Jakub Narebski
2010-02-14 11:55                       ` Paolo Bonzini
2010-02-14 18:10                       ` Johannes Schindelin
2010-02-14 19:06                         ` Dmitry Potapov
2010-02-14 19:22                           ` Johannes Schindelin
2010-02-14 19:28                             ` Johannes Schindelin
2010-02-14 19:56                               ` Dmitry Potapov
2010-02-14 23:52                                 ` Zygo Blaxell
2010-02-15  5:05                                 ` Nicolas Pitre
2010-02-15 12:23                                   ` Dmitry Potapov
2010-02-15  7:48                                 ` Paolo Bonzini [this message]
2010-02-15 12:25                                   ` Dmitry Potapov
2010-02-14 19:55                             ` Dmitry Potapov
2010-02-14 23:13                           ` Avery Pennarun
2010-02-15  4:16                             ` Nicolas Pitre
2010-02-15  5:01                               ` Avery Pennarun
2010-02-15  5:48                                 ` Nicolas Pitre
2010-02-15 19:19                                   ` Avery Pennarun
2010-02-15 19:29                                     ` Nicolas Pitre
2010-02-14  3:05                   ` [PATCH v2] " Dmitry Potapov
2010-02-18  1:16                   ` [PATCH] Teach "git add" and friends to be paranoid Junio C Hamano
2010-02-18  1:20                     ` Junio C Hamano
2010-02-18 15:32                       ` Zygo Blaxell
2010-02-19 17:51                         ` Junio C Hamano
2010-02-18  1:38                     ` Jeff King
2010-02-18  4:55                       ` Nicolas Pitre
2010-02-18  5:36                         ` Junio C Hamano
2010-02-18  7:27                           ` Wincent Colaiuta
2010-02-18 16:18                             ` Zygo Blaxell
2010-02-18 18:12                               ` Jonathan Nieder
2010-02-18 18:35                                 ` Junio C Hamano
2010-02-22 12:59                           ` Paolo Bonzini
2010-02-22 13:33                             ` Dmitry Potapov
2010-02-18 10:14                     ` Thomas Rast
2010-02-18 18:16                       ` Junio C Hamano
2010-02-18 19:58                         ` Nicolas Pitre
2010-02-18 20:11                           ` 16 gig, 350,000 file repository Bill Lear
2010-02-18 20:58                             ` Nicolas Pitre
2010-02-19  9:27                               ` Erik Faye-Lund
2010-02-22 22:20                               ` Bill Lear
2010-02-22 22:31                                 ` Nicolas Pitre
2010-02-18 20:14                           ` [PATCH] Teach "git add" and friends to be paranoid Peter Harris
2010-02-18 20:17                           ` Junio C Hamano
2010-02-18 21:30                             ` Nicolas Pitre
2010-02-19  1:04                               ` Jonathan Nieder
2010-02-19 15:26                                 ` Zygo Blaxell
2010-02-19 17:52                                   ` Junio C Hamano
2010-02-19 19:08                                     ` Zygo Blaxell
2010-02-19  8:28                     ` Dmitry Potapov
2010-02-19 17:52                       ` Junio C Hamano
2010-02-20 19:23                         ` Junio C Hamano
2010-02-21  7:21                           ` Dmitry Potapov
2010-02-21 19:32                             ` Junio C Hamano
2010-02-22  3:35                               ` Dmitry Potapov
2010-02-22  6:59                                 ` Junio C Hamano
2010-02-22 12:25                                   ` Dmitry Potapov
2010-02-22 15:40                                   ` Nicolas Pitre
2010-02-22 16:01                                     ` Dmitry Potapov
2010-02-22 17:31                                     ` Zygo Blaxell
2010-02-22 18:01                                       ` Nicolas Pitre
2010-02-22 19:56                                         ` Junio C Hamano
2010-02-22 20:52                                           ` Nicolas Pitre
2010-02-22 18:05                                       ` Dmitry Potapov
2010-02-22 18:14                                         ` Nicolas Pitre
2010-02-14  1:36   ` mmap with MAP_PRIVATE is useless (was Re: Bug#569505: git-core: 'git add' corrupts repository if the working directory is modified as it runs) Paolo Bonzini
2010-02-14  1:53     ` mmap with MAP_PRIVATE is useless Junio C Hamano
2010-02-14  2:11       ` Paolo Bonzini

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