All of lore.kernel.org
 help / color / mirror / Atom feed
From: Jiri Slaby <jirislaby@gmail.com>
To: David Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org, kuznet@ms2.inr.ac.ru
Subject: inet_csk_get_port lock imbalance?
Date: Thu, 18 Jun 2009 15:55:54 +0200	[thread overview]
Message-ID: <4A3A476A.1060808@gmail.com> (raw)

Hi,

we've found a weird locking discipline in inet_csk_get_port. Who is
supposed to unlock the spin lock in the place marked in the code below?

do {
        head = &hashinfo->bhash[inet_bhashfn(net, rover,
                        hashinfo->bhash_size)];
        spin_lock(&head->lock);
        inet_bind_bucket_for_each(tb, node, &head->chain)
                if (ib_net(tb) == net && tb->port == rover) {
...
		}
        break;  ////////// here
next:
        spin_unlock(&head->lock);
        if (++rover > high)
                rover = low;
} while (--remaining > 0);

Thanks.


             reply	other threads:[~2009-06-18 13:55 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-06-18 13:55 Jiri Slaby [this message]
2009-06-18 14:14 ` inet_csk_get_port lock imbalance? Florian Westphal
2009-06-18 14:23   ` Jiri Slaby

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=4A3A476A.1060808@gmail.com \
    --to=jirislaby@gmail.com \
    --cc=davem@davemloft.net \
    --cc=kuznet@ms2.inr.ac.ru \
    --cc=netdev@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 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.