All of lore.kernel.org
 help / color / mirror / Atom feed
From: "H. Peter Anvin" <hpa@zytor.com>
To: Alan <alan@lxorguk.ukuu.org.uk>
Cc: Zach Brown <zab@zabbo.net>, Pekka Enberg <penberg@cs.helsinki.fi>,
	linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	hch@lst.de
Subject: Re: [RFC/PATCH] revokeat/frevoke system calls V5
Date: Mon, 26 Feb 2007 10:46:21 -0800	[thread overview]
Message-ID: <45E32AFD.2050407@zytor.com> (raw)
In-Reply-To: <20070226194131.2c4e4a47@lxorguk.ukuu.org.uk>

Alan wrote:
>> I'm not sure.  Turning, for example, the statat(dir_fd, name == NULL)  
>> error case into fstat(dir_fd) sounds like a way for apps, admittedly  
>> buggy ones, to be surprised.  Maybe libc would be exptected to catch  
>> the error before performing the shared system call?
> 
> At that point would it not be cheaper to have two system calls, the table
> cost isn't very large.

It's not just the table, though, you need two entry points, but even 
that isn't really all that big either, I guess.

	-hpa

  reply	other threads:[~2007-02-26 18:46 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-28 20:06 [RFC/PATCH] revokeat/frevoke system calls V5 Pekka J Enberg
2007-02-01  4:28 ` Serge E. Hallyn
2007-02-07 10:45 ` Jan Kara
2007-02-07 10:50   ` Pekka J Enberg
2007-02-07 11:05     ` Jan Kara
2007-02-26  0:33 ` Alan
2007-02-26  7:25   ` Pekka Enberg
2007-02-26  7:53     ` H. Peter Anvin
     [not found]       ` <79B7BBDC-E953-4EAE-8D32-E510DE0981FF@zabbo.net>
2007-02-26 19:41         ` Alan
2007-02-26 18:46           ` H. Peter Anvin [this message]
2007-02-26 21:36             ` Kyle Moffett

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=45E32AFD.2050407@zytor.com \
    --to=hpa@zytor.com \
    --cc=alan@lxorguk.ukuu.org.uk \
    --cc=hch@lst.de \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=penberg@cs.helsinki.fi \
    --cc=zab@zabbo.net \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.