netdev - [PATCH RFC 1/2] sock: Add sock_owned_by_user

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Message-Id: <20171228011635.23562-2-tom@quantonium.net>
Date:   Wed, 27 Dec 2017 17:16:34 -0800
From:   Tom Herbert <tom@...ntonium.net>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, dvyukov@...gle.com, ozgur@...sey.org,
        Tom Herbert <tom@...ntonium.net>
Subject: [PATCH RFC 1/2] sock: Add sock_owned_by_user_nocheck

This allows checking socket lock ownership with producing lockdep
warnings.

Signed-off-by: Tom Herbert <tom@...ntonium.net>
---
 include/net/sock.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/net/sock.h b/include/net/sock.h
index 6c1db823f8b9..66fd3951e6f3 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1515,6 +1515,11 @@ static inline bool sock_owned_by_user(const struct sock *sk)
 	return sk->sk_lock.owned;
 }
 
+static inline bool sock_owned_by_user_nocheck(const struct sock *sk)
+{
+	return sk->sk_lock.owned;
+}
+
 /* no reclassification while locks are held */
 static inline bool sock_allow_reclassification(const struct sock *csk)
 {
-- 
2.11.0