From: Lee Schermerhorn <lee.schermerhorn@hp.com>
To: linux-mm <linux-mm@kvack.org>
Cc: Christoph Lameter <clameter@sgi.com>
Subject: Re: [PATCH/RFC] Migrate-on-fault prototype 4/5 V0.1 - handle misplaced anon pages
Date: Thu, 09 Mar 2006 16:48:04 -0500 [thread overview]
Message-ID: <1141940884.8326.6.camel@localhost.localdomain> (raw)
In-Reply-To: <1141928990.6393.14.camel@localhost.localdomain>
On Thu, 2006-03-09 at 13:29 -0500, Lee Schermerhorn wrote:
> Migrate-on-fault prototype 4/5 V0.1 - handle misplaced anon pages
Resend #4:
Migrate-on-fault prototype 4/5 V0.1 - handle misplaced anon pages
This patch simply hooks the anon page fault handler [do_swap_page()]
to check for and migrate misplaced pages.
File and shmem fault paths will be addressed in separate patches.
Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
Index: linux-2.6.16-rc5-git8/mm/memory.c
===================================================================
--- linux-2.6.16-rc5-git8.orig/mm/memory.c 2006-03-06 13:40:48.000000000 -0500
+++ linux-2.6.16-rc5-git8/mm/memory.c 2006-03-07 08:53:30.000000000 -0500
@@ -48,6 +48,7 @@
#include <linux/rmap.h>
#include <linux/module.h>
#include <linux/init.h>
+#include <linux/mempolicy.h> /* check_migrate_misplaced_page() */
#include <asm/pgalloc.h>
#include <asm/uaccess.h>
@@ -1926,6 +1927,8 @@ again:
/* The page isn't present yet, go ahead with the fault. */
+ page = check_migrate_misplaced_page(page, vma, address);
+
inc_mm_counter(mm, anon_rss);
pte = mk_pte(page, vma->vm_page_prot);
if (write_access && can_share_swap_page(page)) {
--
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prev parent reply other threads:[~2006-03-09 21:48 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-09 18:29 Lee Schermerhorn
2006-03-09 21:48 ` Lee Schermerhorn [this message]
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