From: Peter Zijlstra <peterz@infradead.org>
To: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 0/6] ARC: spinlocks/atomics rework
Date: Mon, 3 Aug 2015 16:48:21 +0200 [thread overview]
Message-ID: <20150803144821.GU25159@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <1438612568-28265-1-git-send-email-vgupta@synopsys.com>
On Mon, Aug 03, 2015 at 08:06:02PM +0530, Vineet Gupta wrote:
> The PREFETCHW workaround for llock/scond livelock was not sufficient after
> all and we had to do some work there. Extending testing of quad core FPGA
> builds shows things pretty stable, whereas w/o patches some of the LTP tests
> (shm_open/23-1) would cause the system to go bonkers.
>
Nothing obviously broken with this,
Acked-by: Peter Zijlstra (Intel) <peterz@infraded.org>
prev parent reply other threads:[~2015-08-03 14:48 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-03 14:36 Vineet Gupta
2015-08-03 14:36 ` [PATCH v2 1/6] Revert "ARCv2: STAR 9000837815 workaround hardware exclusive transactions livelock" Vineet Gupta
2015-08-03 14:36 ` [PATCH v2 2/6] ARC: refactor atomic inline asm operands with symbolic names Vineet Gupta
2015-08-03 14:36 ` [PATCH v2 3/6] ARC: LLOCK/SCOND based spin_lock Vineet Gupta
2015-08-03 14:36 ` [PATCH v2 4/6] ARC: LLOCK/SCOND based rwlock Vineet Gupta
2015-08-03 14:36 ` [PATCH v2 5/6] ARCv2: spinlock/rwlock/atomics: Delayed retry of failed SCOND with exponential backoff Vineet Gupta
2015-08-03 14:36 ` [PATCH v2 6/6] ARCv2: spinlock/rwlock: Reset retry delay when starting a new spin-wait cycle Vineet Gupta
2015-08-03 14:48 ` Peter Zijlstra [this message]
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