Return-Path: From: Emeltchenko Andrei To: linux-bluetooth@vger.kernel.org Subject: [RFCv0 2/5] Bluetooth: Add l2cap_chan_lock Date: Mon, 30 Jan 2012 17:09:03 +0200 Message-Id: <1327936146-13897-3-git-send-email-Andrei.Emeltchenko.news@gmail.com> In-Reply-To: <1327936146-13897-1-git-send-email-Andrei.Emeltchenko.news@gmail.com> References: <1327936146-13897-1-git-send-email-Andrei.Emeltchenko.news@gmail.com> Sender: linux-bluetooth-owner@vger.kernel.org List-ID: From: Andrei Emeltchenko Channel lock will be used to lock L2CAP channels which are locked currently by socket locks. Signed-off-by: Andrei Emeltchenko --- include/net/bluetooth/l2cap.h | 11 +++++++++++ net/bluetooth/l2cap_core.c | 2 ++ 2 files changed, 13 insertions(+), 0 deletions(-) diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h index e7a8cc7..e81f235 100644 --- a/include/net/bluetooth/l2cap.h +++ b/include/net/bluetooth/l2cap.h @@ -497,6 +497,7 @@ struct l2cap_chan { void *data; struct l2cap_ops *ops; + struct mutex lock; }; struct l2cap_ops { @@ -609,6 +610,16 @@ static inline void l2cap_chan_put(struct l2cap_chan *c) kfree(c); } +static inline void l2cap_chan_lock(struct l2cap_chan *chan) +{ + mutex_lock(&chan->lock); +} + +static inline void l2cap_chan_unlock(struct l2cap_chan *chan) +{ + mutex_unlock(&chan->lock); +} + static inline void l2cap_set_timer(struct l2cap_chan *chan, struct delayed_work *work, long timeout) { diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index f54768e..9a23b19 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -285,6 +285,8 @@ struct l2cap_chan *l2cap_chan_create(struct sock *sk) if (!chan) return NULL; + mutex_init(&chan->lock); + chan->sk = sk; write_lock(&chan_list_lock); -- 1.7.4.1