From: William Lee Irwin III <wli@holomorphy.com>
To: Dave Hansen <haveblue@us.ibm.com>
Cc: Andrew Morton <akpm@digeo.com>,
linux-mm@kvack.org, Paul Larson <plars@linuxtestproject.org>
Subject: Re: [PATCH] remove unnecessary PAE pgd set
Date: Wed, 30 Apr 2003 20:22:15 -0700 [thread overview]
Message-ID: <20030501032215.GA20911@holomorphy.com> (raw)
In-Reply-To: <3EB05F61.5070404@us.ibm.com>
On Wed, Apr 30, 2003 at 04:42:25PM -0700, Dave Hansen wrote:
> With PAE on, there are only 4 PGD entries. The kernel ones never
> change, so there is no need to copy them when a vmalloc fault occurs.
> This was this was causing problems with the split pmd patches, but it is
> still correct for mainline.
> Tested with and without PAE. I ran it in a loop turning on and off 10
> swap partitions, which is what excited the original bug.
> http://bugme.osdl.org/show_bug.cgi?id=640
I suspect this set_pgd() should go away for non-PAE also.
-- wli
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next prev parent reply other threads:[~2003-05-01 3:22 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-30 23:42 [PATCH] remove unnecessary PAE pgd set Dave Hansen
2003-05-01 3:22 ` William Lee Irwin III [this message]
2003-05-01 3:39 ` Dave Hansen
2003-05-01 3:45 ` William Lee Irwin III
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