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Date: Sat, 25 May 2013 17:16:45 +0200 From: Manfred Spraul <manfred@...orfullife.com> To: Rik van Riel <riel@...hat.com> CC: LKML <linux-kernel@...r.kernel.org>, Andrew Morton <akpm@...ux-foundation.org>, Davidlohr Bueso <davidlohr.bueso@...com>, hhuang@...hat.com, Linus Torvalds <torvalds@...ux-foundation.org> Subject: Re: [PATCH] ipc/sem.c: fix lockup, restore FIFO behavior Hi Rik, On 05/25/2013 03:49 PM, Rik van Riel wrote: > On 05/25/2013 04:54 AM, Manfred Spraul wrote: >> >> But: Let's wait if this really exists: An application that does rarely >> complex operations (and that doesn't prefer FIFO semantics). > > I do not like that downside at all. > > The danger of staying in "too slow to be useful" mode forever > is really not a risk I want to take. > I've modified the patch so that it leaves the mode as soon as possible. Are you aware of any real-life apps that use multiple semops? -- Manfred -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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