From: Emeltchenko Andrei <Andrei.Emeltchenko.news@gmail.com>
To: Ulisses Furquim <ulisses@profusion.mobi>
Cc: linux-bluetooth@vger.kernel.org
Subject: Re: [RFCv4 02/16] Bluetooth: Revert to mutexes from RCU list
Date: Tue, 14 Feb 2012 15:21:20 +0200 [thread overview]
Message-ID: <20120214132117.GB3145@aemeltch-MOBL1> (raw)
In-Reply-To: <CAA37ikZPa2bNyw+zcUkr3VFAaA8nz_o+5dhxFHYwOvqg1R8TEw@mail.gmail.com>
Hi Ulisses,
On Mon, Feb 13, 2012 at 10:06:10PM -0300, Ulisses Furquim wrote:
...
> Yes, I do think they belong together. And please, check l2cap_sock.c
> where l2cap_chan_close() seems to be called without locking
> conn->chan_lock in l2cap_sock_shutdown().
In that context we do not always have l2cap_conn so maybe we return
chan list lock to chan_del or invent unlocked chan_del / chan_close?
So far the easiest way would be first solution.
> And please remove the bogus
> comment below from l2cap_conn_start, ok?
I believe this is removed in later patches.
Best regards
Andrei Emeltchenko
>
> /* l2cap_chan_close() calls list_del(chan)
> * so release the lock */
>
next prev parent reply other threads:[~2012-02-14 13:21 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-10 13:54 [RFCv4 00/16] Bluetooth: Change socket lock to l2cap_chan lock Emeltchenko Andrei
2012-02-10 13:54 ` [RFCv4 01/16] Bluetooth: trivial: Fix long line Emeltchenko Andrei
2012-02-10 13:54 ` [RFCv4 02/16] Bluetooth: Revert to mutexes from RCU list Emeltchenko Andrei
2012-02-10 18:24 ` Ulisses Furquim
2012-02-13 8:58 ` Emeltchenko Andrei
2012-02-13 14:49 ` Emeltchenko Andrei
2012-02-14 1:06 ` Ulisses Furquim
2012-02-14 13:21 ` Emeltchenko Andrei [this message]
2012-02-14 17:23 ` Ulisses Furquim
2012-02-15 8:16 ` Emeltchenko Andrei
2012-02-15 9:24 ` Emeltchenko Andrei
2012-02-15 17:26 ` Ulisses Furquim
2012-02-10 13:55 ` [RFCv4 03/16] Bluetooth: Do not use sk lock in get_chan functions Emeltchenko Andrei
2012-02-10 13:55 ` [RFCv4 04/16] Bluetooth: Add l2cap_chan_lock Emeltchenko Andrei
2012-02-10 13:55 ` [RFCv4 05/16] Bluetooth: Add locked and unlocked state_change Emeltchenko Andrei
2012-02-10 13:55 ` [RFCv4 06/16] Bluetooth: Add socket error function Emeltchenko Andrei
2012-02-14 18:39 ` Gustavo Padovan
2012-02-15 8:21 ` Emeltchenko Andrei
2012-02-10 13:55 ` [RFCv4 07/16] Bluetooth: Add unlocked __l2cap_chan_add function Emeltchenko Andrei
2012-02-10 13:55 ` [RFCv4 08/16] Bluetooth: Use chan lock in timers Emeltchenko Andrei
2012-02-10 13:55 ` [RFCv4 09/16] Bluetooth: Use chan lock in L2CAP sig commands Emeltchenko Andrei
2012-02-10 13:55 ` [RFCv4 10/16] Bluetooth: Use chan lock in chan delete functions Emeltchenko Andrei
2012-02-10 13:55 ` [RFCv4 11/16] Bluetooth: Use chan lock in L2CAP conn start Emeltchenko Andrei
2012-02-10 13:55 ` [RFCv4 12/16] Bluetooth: Use chan lock in receiving data Emeltchenko Andrei
2012-02-10 13:55 ` [RFCv4 13/16] Bluetooth: Change locking logic for conn/chan ready Emeltchenko Andrei
2012-02-10 13:55 ` [RFCv4 14/16] Bluetooth: Change locking logic in security_cfm Emeltchenko Andrei
2012-02-10 13:55 ` [RFCv4 15/16] Bluetooth: Use l2cap chan lock in socket connect Emeltchenko Andrei
2012-02-10 13:55 ` [RFCv4 16/16] Bluetooth: Remove socket lock check Emeltchenko Andrei
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