From: David Daney <ddaney@caviumnetworks.com>
To: netdev@vger.kernel.org
Subject: Weird locking in __release_sock()?
Date: Wed, 22 Jun 2011 16:31:13 -0700 [thread overview]
Message-ID: <4E027B41.3040009@caviumnetworks.com> (raw)
Hi,
In net/core/sock.c the function __release_sock() appears to drop the
socket lock, and then feed the backlogged skbs to sk_backlog_rcv().
In the case of an IPv4 TCP socket, sk_backlog_rcv() calls
tcp_v4_do_rcv(), which is documented like this:
/* The socket must have it's spinlock held when we get
* here.
.
.
.
*/
Q: How can this be correct?
Perhaps I am missing something. In any event, thanks in advance
shedding some light on the locking situation.
David Daney
next reply other threads:[~2011-06-22 23:31 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-22 23:31 David Daney [this message]
2011-06-22 23:42 ` Weird locking in __release_sock()? David Miller
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