From: DervishD <raul@pleyades.net>
To: alan@lxorguk.ukuu.org.uk, dent@cosy.sbg.ac.at
Cc: linux-kernel@vger.kernel.org
Subject: Re: do_mmap
Date: Fri, 31 May 2002 21:49:30 +0200 [thread overview]
Message-ID: <3CF7D3CA.mail9T12XQQ09@viadomus.com> (raw)
In-Reply-To: <Pine.GSO.4.05.10205311456070.10633-100000@mausmaki.cosy.sbg.ac.at> <1022855243.12888.410.camel@irongate.swansea.linux.org.uk>
Hello Alan & Thomas :)
>> is it possible to have 0 as a valid address? - if not, this should
>> be the return on errors.
>SuS explicitly says that 0 is not a valid mmap return address.
Not in my copy of the SuS, version 2, but yes in my man page
about mmap(). Anyway, Linus told me that he doesn't like to change
the semantics for mmap, so it can return 0.
I don't like mmap() returning 0, but I don't like too breaking
the old behaviour of the kernel. Moreover, 0 is returned only if the
length requested is 0 and the address passed as hint is 0 too... I
don't see any problem about it.
Raúl
next prev parent reply other threads:[~2002-05-31 19:44 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-31 13:00 do_mmap Thomas 'Dent' Mirlacher
2002-05-31 14:27 ` do_mmap Alan Cox
2002-05-31 13:33 ` do_mmap Thomas 'Dent' Mirlacher
2002-05-31 17:30 ` do_mmap Linus Torvalds
2002-05-31 17:46 ` do_mmap Thomas 'Dent' Mirlacher
2002-05-31 17:56 ` do_mmap Linus Torvalds
2002-05-31 18:10 ` do_mmap Richard B. Johnson
2002-05-31 18:21 ` do_mmap Thomas 'Dent' Mirlacher
2002-05-31 18:38 ` do_mmap Richard B. Johnson
2002-05-31 18:59 ` do_mmap Alan Cox
2002-06-01 11:12 ` do_mmap Kai Henningsen
2002-05-31 19:49 ` DervishD [this message]
2002-05-31 19:46 ` do_mmap DervishD
2002-06-03 12:19 ` do_mmap Pavel Machek
2002-06-03 19:13 ` do_mmap Thomas 'Dent' Mirlacher
2002-06-03 20:11 ` do_mmap Thomas 'Dent' Mirlacher
2002-06-03 20:25 ` do_mmap Pavel Machek
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=3CF7D3CA.mail9T12XQQ09@viadomus.com \
--to=raul@pleyades.net \
--cc=alan@lxorguk.ukuu.org.uk \
--cc=dent@cosy.sbg.ac.at \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox