From: William Lee Irwin III <wli@holomorphy.com>
To: "Jeff V. Merkey" <jmerkey@vger.timpanogas.org>
Cc: linux-kernel@vger.kernel.org, jmerkey@timpanogas.org
Subject: Re: Question about Zone Allocation 2.4.X
Date: Thu, 2 Jan 2003 16:11:27 -0800 [thread overview]
Message-ID: <20030103001127.GV9704@holomorphy.com> (raw)
In-Reply-To: <20030102181554.A21643@vger.timpanogas.org>
On Thu, Jan 02, 2003 at 06:15:54PM -0700, Jeff V. Merkey wrote:
> Looks like we simply jetisioned the concept of a PPL (Physical Pages
> List) and went with a zone allocator instead. I'm sure there was a
> good reason for it historically. Rolling a separate zone is exactly
> what I was thinking when I reviewed the code intially. Question,
> which files will be affected so when I put this one in, I don't end
> up breaking the VM and userspace balancing logic. i.e. Could you
> point me to Jens' ZONE_DMA32 code as well.
Adding new zone types is easy. Just add them to mmzone.h, avoid setting
->virtual (which does not universally exist) in free_area_init_core()
if it's not perma-mapped, stuff them in the fallback sequence in
build_zonelists(), and detect them in arch/*/mm/init.c
Bill
next prev parent reply other threads:[~2003-01-03 0:03 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-03 0:55 Questton about Zone Allocation 2.4.X Jeff V. Merkey
2003-01-02 23:51 ` William Lee Irwin III
2003-01-02 23:54 ` William Lee Irwin III
2003-01-03 1:08 ` Jeff V. Merkey
2003-01-03 0:00 ` William Lee Irwin III
2003-01-03 1:15 ` Question " Jeff V. Merkey
2003-01-03 0:11 ` William Lee Irwin III [this message]
2003-01-03 1:32 ` Jeff V. Merkey
2003-01-03 0:30 ` William Lee Irwin III
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