linux-kernel - Re: [GIT]: Networking

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Message-ID: <20090616092635.GB4184@elte.hu>
Date:	Tue, 16 Jun 2009 11:26:35 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	David Miller <davem@...emloft.net>
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [GIT]: Networking


* David Miller <davem@...emloft.net> wrote:

> From: Ingo Molnar <mingo@...e.hu>
> Date: Tue, 16 Jun 2009 11:15:38 +0200
> 
> > BUG: sleeping function called from invalid context at net/core/sock.c:1851
> 
> This line in my tree (and Linus's) reads:
> 
> 	if (sk->sk_lock.owned)
> 
> what gives? :-)

hmmm - i have to declare the small kmemcheck annotation attached 
below :-)

(kmemcheck is off in the config so it shouldnt matter)

So the line is:

        might_sleep();

Lemme dig.

	Ingo

diff --git a/net/core/sock.c b/net/core/sock.c
index 06e26b7..b0ba569 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -945,6 +945,8 @@ static struct sock *sk_prot_alloc(struct proto *prot, gfp_t priority,
 		sk = kmalloc(prot->obj_size, priority);
 
 	if (sk != NULL) {
+		kmemcheck_annotate_bitfield(sk, flags);
+
 		if (security_sk_alloc(sk, family, priority))
 			goto out_free;
 
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