mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Russ Weight <rweight@us.ibm.com>
To: linux-kernel@vger.kernel.org
Subject: bdevname(), cdevname(), kdevname() - static buffers
Date: Fri, 2 Nov 2001 10:42:11 -0800	[thread overview]
Message-ID: <20011102104211.A1279@us.ibm.com> (raw)

Hi,

I was looking at the usage of bdevname(), cdevname(), and kdevname(),
and noticed that they each return a pointer to a static buffer.
This buffer contains a formatted device name, which is typically
printed immediately following the call. However, I don't see any
explicit lock protection for these buffers.

For SMP systems, is there something implicit in their use that
prevents a race on these buffers? Has anyone seen garbled device
names being printed (which might be attributed to a race)?

- Russ

     ----------------------------------------------------------------------

Russ Weight  (rweight@us.ibm.com)
IBM Technology Center

             reply	other threads:[~2001-11-02 18:44 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-11-02 18:42 Russ Weight [this message]
2001-11-02 18:59 ` Alan Cox
2001-11-02 19:03 ` Andreas Dilger

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=20011102104211.A1279@us.ibm.com \
    --to=rweight@us.ibm.com \
    --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
all inboxes | Powered by JetHome®