From: Manfred Spraul <manfred@colorfullife.com>
To: Rik van Riel <riel@redhat.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Davidlohr Bueso <davidlohr.bueso@hp.com>,
hhuang@redhat.com, Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH] ipc/sem.c: fix lockup, restore FIFO behavior
Date: Sat, 25 May 2013 17:16:45 +0200 [thread overview]
Message-ID: <51A0D5DD.1060409@colorfullife.com> (raw)
In-Reply-To: <51A0C166.4000503@redhat.com>
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
prev parent reply other threads:[~2013-05-25 15:16 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-25 8:54 [PATCH] ipc/sem.c: fix lockup, restore FIFO behavior Manfred Spraul
2013-05-25 13:49 ` Rik van Riel
2013-05-25 15:16 ` Manfred Spraul [this message]
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