From: Tejun Heo <tj@kernel.org>
To: Sam Ravnborg <sam@ravnborg.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
Andrew Morton <akpm@linux-foundation.org>,
Gavin Shan <shangw@linux.vnet.ibm.com>,
David Miller <davem@davemloft.net>,
Yinghai Lu <yinghai@kernel.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
"H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>
Subject: Re: [patch 00/10] (no)bootmem bits for 3.5
Date: Wed, 9 May 2012 10:35:28 -0700 [thread overview]
Message-ID: <20120509173528.GD24636@google.com> (raw)
In-Reply-To: <20120508175748.GA11906@merkur.ravnborg.org>
Hello,
On Tue, May 08, 2012 at 07:57:48PM +0200, Sam Ravnborg wrote:
> > It was used on x86-32 numa to try all bootmem allocations from node 0
> > first (see only remaining definition of bootmem_arch_preferred_node),
> > which AFAICS nobootmem no longer respects.
> >
> > Shouldn't this be fixed instead?
> I do not know. Tejun / Yinghai?
Indeed, preferring node 0 for bootmem allocation on x86_32 got lost
across the nobootmem changes. I followed the git history and
preferring NODE_DATA(0) goes back to the initial git branch creation
time (2.6.12) and I couldn't find any explanation, and nobody
complained about the changed behavior. hpa, do you know why the code
to prefer node 0 for bootmem allocations was added in the first place?
Maybe we can just remove it?
Thanks.
--
tejun
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next prev parent reply other threads:[~2012-05-09 17:35 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-07 11:37 [patch 00/10] (no)bootmem bits for 3.5 Johannes Weiner
2012-05-07 11:37 ` [patch 01/10] mm: bootmem: fix checking the bitmap when finally freeing bootmem Johannes Weiner
2012-05-07 18:07 ` Tejun Heo
2012-05-07 11:37 ` [patch 02/10] mm: bootmem: remove redundant offset check " Johannes Weiner
2012-05-07 18:08 ` Tejun Heo
2012-05-07 11:37 ` [patch 03/10] mm: bootmem: rename alloc_bootmem_core to alloc_bootmem_bdata Johannes Weiner
2012-05-07 11:37 ` [patch 04/10] mm: bootmem: split out goal-to-node mapping from goal dropping Johannes Weiner
2012-05-07 11:37 ` [patch 05/10] mm: bootmem: allocate in order node+goal, goal, node, anywhere Johannes Weiner
2012-05-07 11:37 ` [patch 06/10] mm: bootmem: unify allocation policy of (non-)panicking node allocations Johannes Weiner
2012-05-07 11:37 ` [patch 07/10] mm: nobootmem: panic on node-specific allocation failure Johannes Weiner
2012-05-07 19:17 ` Yinghai Lu
2012-05-07 11:37 ` [patch 08/10] mm: nobootmem: unify allocation policy of (non-)panicking node allocations Johannes Weiner
2012-05-07 19:23 ` Yinghai Lu
2012-05-07 11:37 ` [patch 09/10] mm: bootmem: pass pgdat instead of pgdat->bdata down the stack Johannes Weiner
2012-05-07 11:37 ` [patch 10/10] mm: remove sparsemem allocation details from the bootmem allocator Johannes Weiner
2012-05-07 18:19 ` Tejun Heo
2012-05-07 18:21 ` David Miller
2012-05-10 21:44 ` Andrew Morton
2012-05-15 11:47 ` Johannes Weiner
2012-05-07 20:41 ` [patch 00/10] (no)bootmem bits for 3.5 Sam Ravnborg
2012-05-07 22:01 ` Johannes Weiner
2012-05-08 17:57 ` Sam Ravnborg
2012-05-09 17:35 ` Tejun Heo [this message]
2012-05-09 17:54 ` Christoph Lameter
2012-05-09 18:08 ` Tejun Heo
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