From: Andrei Emeltchenko <Andrei.Emeltchenko.news@gmail.com>
To: Ulisses Furquim <ulisses@profusion.mobi>
Cc: linux-bluetooth@vger.kernel.org
Subject: Re: [PATCHv1 06/14] Bluetooth: Add unlocked __l2cap_chan_add function
Date: Wed, 22 Feb 2012 11:25:18 +0200 [thread overview]
Message-ID: <20120222092516.GE24328@aemeltch-MOBL1> (raw)
In-Reply-To: <CAA37ikZ6tnfQpqmc8kEXygDbPByC4DmTuQKGw8z+ki=A-83Vow@mail.gmail.com>
Hi Ulisses,
On Tue, Feb 21, 2012 at 03:01:55PM -0200, Ulisses Furquim wrote:
> Hi Andrei,
>
> On Tue, Feb 21, 2012 at 8:54 AM, Andrei Emeltchenko
> <Andrei.Emeltchenko.news@gmail.com> wrote:
> > From: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
> >
> >
> > Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
> > ---
> > net/bluetooth/l2cap_core.c | 9 +++++++--
> > 1 files changed, 7 insertions(+), 2 deletions(-)
> >
> > diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
> > index c0640b7..0e4f4cb 100644
> > --- a/net/bluetooth/l2cap_core.c
> > +++ b/net/bluetooth/l2cap_core.c
> > @@ -300,7 +300,7 @@ void l2cap_chan_destroy(struct l2cap_chan *chan)
> > l2cap_chan_put(chan);
> > }
> >
> > -static void l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan)
> > +void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan)
> > {
> > BT_DBG("conn %p, psm 0x%2.2x, dcid 0x%4.4x", conn,
> > chan->psm, chan->dcid);
> > @@ -346,8 +346,13 @@ static void l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan)
> >
> > l2cap_chan_hold(chan);
> >
> > - mutex_lock(&conn->chan_lock);
> > list_add(&chan->list, &conn->chan_l);
> > +}
> > +
> > +void l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan)
> > +{
> > + mutex_lock(&conn->chan_lock);
> > + __l2cap_chan_add(conn, chan);
> > mutex_unlock(&conn->chan_lock);
> > }
>
> Same comment applies here. If we don't use the locked version, don't
> bother adding it.
It is used for example in the code below:
1 470 net/bluetooth/a2mp.c <<open_a2mp_chan>>
l2cap_chan_add(conn, chan);
2 917 net/bluetooth/l2cap_core.c <<l2cap_le_conn_ready>>
l2cap_chan_add(conn, chan);
3 1258 net/bluetooth/l2cap_core.c <<l2cap_chan_connect>>
l2cap_chan_add(conn, chan);
Best regards
Andrei Emeltchenko
next prev parent reply other threads:[~2012-02-22 9:25 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-21 10:54 [PATCHv1 00/14] Bluetooth: Change socket lock to l2cap_chan lock Andrei Emeltchenko
2012-02-21 10:54 ` [PATCHv1 01/14] Bluetooth: trivial: Fix long line Andrei Emeltchenko
2012-02-21 10:54 ` [PATCHv1 02/14] Bluetooth: Revert to mutexes from RCU list Andrei Emeltchenko
2012-02-21 10:54 ` [PATCHv1 03/14] Bluetooth: Add l2cap_chan_lock Andrei Emeltchenko
2012-02-21 16:51 ` Ulisses Furquim
2012-02-21 17:25 ` Gustavo Padovan
2012-02-21 10:54 ` [PATCHv1 04/14] Bluetooth: Add locked and unlocked state_change Andrei Emeltchenko
2012-02-21 16:52 ` Ulisses Furquim
2012-02-21 17:26 ` Gustavo Padovan
2012-02-21 10:54 ` [PATCHv1 05/14] Bluetooth: Add socket error function Andrei Emeltchenko
2012-02-21 16:57 ` Ulisses Furquim
2012-02-21 17:27 ` Gustavo Padovan
2012-02-21 10:54 ` [PATCHv1 06/14] Bluetooth: Add unlocked __l2cap_chan_add function Andrei Emeltchenko
2012-02-21 17:01 ` Ulisses Furquim
2012-02-22 9:25 ` Andrei Emeltchenko [this message]
2012-02-21 17:28 ` Gustavo Padovan
2012-02-21 10:55 ` [PATCHv1 07/14] Bluetooth: Use chan lock in timers Andrei Emeltchenko
2012-02-21 17:06 ` Ulisses Furquim
2012-02-21 10:55 ` [PATCHv1 08/14] Bluetooth: Use chan lock in L2CAP sig commands Andrei Emeltchenko
2012-02-21 17:18 ` Ulisses Furquim
2012-02-21 17:57 ` Gustavo Padovan
2012-02-21 10:55 ` [PATCHv1 09/14] Bluetooth: Use chan lock in L2CAP conn start Andrei Emeltchenko
2012-02-21 17:20 ` Ulisses Furquim
2012-02-21 10:55 ` [PATCHv1 10/14] Bluetooth: Use chan lock in receiving data Andrei Emeltchenko
2012-02-21 20:28 ` Ulisses Furquim
2012-02-21 10:55 ` [PATCHv1 11/14] Bluetooth: Change locking logic for conn/chan ready Andrei Emeltchenko
2012-02-21 17:31 ` Ulisses Furquim
2012-02-21 10:55 ` [PATCHv1 12/14] Bluetooth: Change locking logic in security_cfm Andrei Emeltchenko
2012-02-21 17:32 ` Ulisses Furquim
2012-02-21 17:56 ` Gustavo Padovan
2012-02-21 20:44 ` Andrei Emeltchenko
2012-02-21 21:18 ` Ulisses Furquim
2012-02-21 10:55 ` [PATCHv1 13/14] Bluetooth: Use l2cap chan lock in socket connect Andrei Emeltchenko
2012-02-21 17:36 ` Ulisses Furquim
2012-02-21 17:46 ` Gustavo Padovan
2012-02-22 9:53 ` Andrei Emeltchenko
2012-02-21 10:55 ` [PATCHv1 14/14] Bluetooth: Remove socket lock check Andrei Emeltchenko
2012-02-21 17:37 ` Ulisses Furquim
2012-02-22 9:59 ` Andrei Emeltchenko
2012-02-21 17:51 ` Gustavo Padovan
2012-02-21 19:24 ` [PATCHv1 00/14] Bluetooth: Change socket lock to l2cap_chan lock Johan Hedberg
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