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From: Duy Nguyen <pclouds@gmail.com>
To: Zachary Turner <zturner@chromium.org>
Cc: Karsten Blees <karsten.blees@gmail.com>,
	Stefan Zager <szager@google.com>,
	Git Mailing List <git@vger.kernel.org>
Subject: Re: Make the git codebase thread-safe
Date: Sat, 15 Feb 2014 07:45:45 +0700	[thread overview]
Message-ID: <CACsJy8Dzj5iyaUseNyU76ojG1C0VYR=v7xsc=6TSGxTh=Xh3Ag@mail.gmail.com> (raw)
In-Reply-To: <CAAErz9j=_FpWLSyUk43pp8A6e7Ej0crT8ghW5-yxBEbGkd6O+A@mail.gmail.com>

On Sat, Feb 15, 2014 at 2:16 AM, Zachary Turner <zturner@chromium.org> wrote:
> (Gah, sorry if you're receiving multiple emails to your personal
> addresses, I need to get used to manually setting Plain-text mode
> every time I send a message).
>
> For the mixed read, we wouldn't be looking for another caller of
> pread() (since it doesn't care what the file pointer is), but instead
> a caller of read() or lseek() (since those do depend on the current
> file pointer).  In index-pack.c, I see two possible culprits:
>
> 1) A call to xread() from inside fill()
> 2) A call to lseek in parse_pack_objects()
>
> Do you think these could be related?  If so, maybe that opens up some
> other solutions?

For index-pack alone, what's wrong with open one file handle per thread?
-- 
Duy

  parent reply	other threads:[~2014-02-15  0:46 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-12  1:54 Make the git codebase thread-safe Stefan Zager
2014-02-12  2:02 ` Robin H. Johnson
2014-02-12  3:43   ` Duy Nguyen
2014-02-12 11:00     ` Karsten Blees
2014-02-12 23:03       ` Mike Hommey
2014-02-13  0:06         ` Karsten Blees
2014-02-12 18:15     ` Stefan Zager
2014-02-12  2:11 ` Duy Nguyen
2014-02-12 18:12   ` Stefan Zager
2014-02-12 18:33     ` Matthieu Moy
2014-02-12 18:39       ` Stefan Zager
2014-02-12 18:50     ` David Kastrup
2014-02-12 19:02       ` Stefan Zager
2014-02-12 19:15         ` David Kastrup
2014-02-12 23:09           ` Mike Hommey
2014-02-13  6:04             ` David Kastrup
2014-02-13  9:34               ` Mike Hommey
2014-02-13  9:48                 ` Mike Hommey
2014-02-13  8:30           ` David Kastrup
2014-02-12 20:06     ` Junio C Hamano
2014-02-12 20:27       ` Stefan Zager
2014-02-12 23:05         ` Junio C Hamano
2014-02-12 11:59 ` Erik Faye-Lund
2014-02-12 18:20   ` Stefan Zager
2014-02-12 18:27     ` Erik Faye-Lund
2014-02-12 18:34       ` Stefan Zager
2014-02-12 18:37         ` Erik Faye-Lund
2014-02-12 19:22           ` Karsten Blees
2014-02-12 19:30             ` Stefan Zager
2014-02-13  8:27               ` Johannes Sixt
2014-02-13  8:38                 ` David Kastrup
2014-02-13 18:40                 ` Stefan Zager
2014-02-13 18:38             ` Zachary Turner
2014-02-13 22:51               ` Karsten Blees
2014-02-13 22:53                 ` Stefan Zager
2014-02-13 23:09                   ` Zachary Turner
2014-02-14 19:04                     ` Karsten Blees
     [not found]                       ` <CAAErz9g7ND1htfk=yxRJJLbSEgBi4EV_AHC9uDRptugGWFWcXw@mail.gmail.com>
2014-02-14 19:16                         ` Zachary Turner
2014-02-14 23:10                           ` Karsten Blees
2014-02-15  0:45                           ` Duy Nguyen [this message]
2014-02-15  0:50                             ` Stefan Zager
2014-02-15  0:56                               ` Duy Nguyen
2014-02-15  1:15                                 ` Zachary Turner
2014-02-15  1:39                                   ` Duy Nguyen
2014-02-18 17:55                                     ` Junio C Hamano
2014-02-18 18:14                                       ` Zachary Turner
2014-02-14 19:52                         ` Stefan Zager
2014-02-14 21:49                       ` Stefan Zager
2014-02-13  1:42 ` brian m. carlson
2019-04-02  0:52 ` Matheus Tavares
2019-04-02  1:07   ` Duy Nguyen
2019-04-02 10:30     ` David Kastrup
2019-04-02 11:35       ` Duy Nguyen
2019-04-02 11:52         ` David Kastrup
2019-04-02 19:06     ` Matheus Tavares Bernardino

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