linux-kernel - Re: [PATCH -next] ipc: make refcounter atomic (was Re: linux-next: Tree for Apr 23 [ Call-Traces: lib/debugobjects.c | kernel/rcupdate.c

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Message-ID: <517927E2.1090907@surriel.com>
Date:	Thu, 25 Apr 2013 08:56:02 -0400
From:	Rik van Riel <riel@...riel.com>
To:	sedat.dilek@...il.com
CC:	Davidlohr Bueso <davidlohr.bueso@...com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Paul McKenney <paulmck@...ux.vnet.ibm.com>,
	Paul McKenney <paul.mckenney@...aro.org>,
	Emmanuel Benisty <benisty.e@...il.com>,
	linux-next <linux-next@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -next] ipc: make refcounter atomic (was Re: linux-next:
 Tree for Apr 23 [ Call-Traces: lib/debugobjects.c | kernel/rcupdate.c | kernel/rcutree.c
 ])

On 04/24/2013 07:05 PM, Sedat Dilek wrote:
> On Thu, Apr 25, 2013 at 12:16 AM, Davidlohr Bueso
> <davidlohr.bueso@...com> wrote:

>> This patch converts the IPC RCU header's reference counter to atomic_t. The return of
>> ipc_rcu_getref() is modified to inform the callers if it actually succeeded.
>>
>> Now all callers return -EIDRM upon failure and abort the current operation. Two exceptions are
>> in semaphore code where sem_getref_and_unlock() and sem_getref() trigger a warning but proceed
>> to freeing up any held locks.
>>
>> Signed-off-by: Davidlohr Bueso <davidlohr.bueso@...com>
>> Suggested-by: Linus Torvalds <torvalds@...ux-foundation.org>
>> CC: Rik van Riel <riel@...riel.com>
>> CC: Paul McKenney <paul.mckenney@...aro.org>
>> CC: Sedat Dilek <sedat.dilek@...il.com>
>> CC: Emmanuel Benisty <benisty.e@...il.com>
>> CC: Andrew Morton <akpm@...ux-foundation.org>
>
> Missing my Reported-by ...!

> ...so please add also my Tested-by!

And my ax!

I mean ... Reviewed-by: Rik van Riel <riel@...hat.com>

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