From: Ingo Molnar <mingo@elte.hu>
To: Ed Tomlinson <edt@aei.ca>
Cc: Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org, Matt Mackall <mpm@selenic.com>
Subject: Re: [patch -mm] fix SLOB on x64
Date: Sun, 11 Dec 2005 21:05:35 +0100 [thread overview]
Message-ID: <20051211200535.GB19322@elte.hu> (raw)
In-Reply-To: <200512111222.56067.edt@aei.ca>
* Ed Tomlinson <edt@aei.ca> wrote:
> On Sunday 11 December 2005 09:12, Ingo Molnar wrote:
> > this patch fixes 32-bitness bugs in mm/slob.c. Successfully booted x64
> > with SLOB enabled. (i have switched the PREEMPT_RT feature to use the
> > SLOB allocator exclusively, so it must work on all platforms)
>
> Its a good idea to get this working everywhere. Why have you switched
> to use SLOB exclusively?
because the SLAB hacks were getting ugly, and i gave up on it during the
2.6.15-rc5 merge. (The SLAB code has lots of irqs-off / per-cpu and
non-preempt assumptions integrated, which were a pain to sort out.)
We'll eventually do a cleaner conversion of SLAB to PREEMPT_RT, but for
now the SLOB is turned on exclusively if PREEMPT_RT. (in other
preemption modes it's optionally selectable if EMBEDDED is enabled)
Ingo
next prev parent reply other threads:[~2005-12-11 20:06 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-11 14:12 [patch -mm] fix SLOB on x64 Ingo Molnar
2005-12-11 17:22 ` Ed Tomlinson
2005-12-11 20:05 ` Ingo Molnar [this message]
2005-12-11 18:05 ` Matt Mackall
2005-12-11 20:02 ` Ingo Molnar
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