From: Lee Schermerhorn <lee.schermerhorn@hp.com>
To: linux-numa@vger.kernel.org
Cc: akpm@linux-foundation.org, Mel Gorman <mel@csn.ul.ie>,
cl@linux-foundation.org, Nick Piggin <npiggin@kernel.dk>,
Hugh Dickins <hughd@google.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
andi@firstfloor.org, David Rientjes <rientjes@google.com>,
Avi Kivity <avi@redhat.com>,
Andrea Arcangeli <aarcange@redhat.com>
Subject: [PATCH/RFC 1/8] numa - Migrate-on-Fault - add Kconfig option
Date: Thu, 11 Nov 2010 14:44:58 -0500 [thread overview]
Message-ID: <20101111194458.12535.31764.sendpatchset@zaphod.localdomain> (raw)
In-Reply-To: <20101111194450.12535.12611.sendpatchset@zaphod.localdomain>
Migrate-on-fault - add migrate on fault Kconfig option
Add a "MIGRATE_ON_FAULT" Kconfig suboption to "MIGRATION" to
separately enable/disable MIGRATE_ON_FAULT handling.
Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
mm/Kconfig | 12 ++++++++++++
1 file changed, 12 insertions(+)
Index: linux-2.6.36-mmotm-101103-1217/mm/Kconfig
===================================================================
--- linux-2.6.36-mmotm-101103-1217.orig/mm/Kconfig
+++ linux-2.6.36-mmotm-101103-1217/mm/Kconfig
@@ -198,6 +198,18 @@ config MIGRATION
pages as migration can relocate pages to satisfy a huge page
allocation instead of reclaiming.
+# I really want to "select SWAP" here, but that resulted in a circular
+# dependency with "HIBERNATION" back in 28-rc4[-mm*]
+config MIGRATE_ON_FAULT
+ bool "Migrate unmapped page on fault"
+ depends on MIGRATION
+ depends on SWAP
+ help
+ Allows "misplaced" pages found in a page cache at fault time to be
+ migrated to the node specified by the applicable policy when the
+ page is not currently mapped by any tasks. This allows a task to
+ pull unmapped pages closer to itself when enabled for that task.
+
config PHYS_ADDR_T_64BIT
def_bool 64BIT || ARCH_PHYS_ADDR_T_64BIT
next prev parent reply other threads:[~2010-11-11 19:44 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-11 19:44 [PATCH/RFC 0/8] numa - Migrate-on-Fault Lee Schermerhorn
2010-11-11 19:44 ` Lee Schermerhorn [this message]
2010-11-11 19:45 ` [PATCH/RFC 2/8] numa - Migrate-on-Fault - add cpuset control Lee Schermerhorn
2010-11-11 19:45 ` [PATCH/RFC 3/8] numa - Migrate-on-Fault - check for misplaced page Lee Schermerhorn
2010-11-11 19:45 ` [PATCH/RFC 4/8] numa - Migrate-on-Fault - migrate misplaced pages Lee Schermerhorn
2010-11-11 19:45 ` [PATCH/RFC 5/8] numa - Migrate-on-Fault - migrate misplaced anon pages Lee Schermerhorn
2010-11-11 19:45 ` [PATCH/RFC 6/8] numa - Migrate-on-Fault - add mbind() MPOL_MF_LAZY flag Lee Schermerhorn
2010-11-11 19:45 ` [PATCH/RFC 7/8] numa - Migrate-on-Fault - mbind() NOOP policy Lee Schermerhorn
2010-11-11 19:45 ` [PATCH/RFC 8/8] numa - Migrate-on-Fault - add statistics Lee Schermerhorn
2010-11-14 6:37 ` [PATCH/RFC 0/8] numa - Migrate-on-Fault KOSAKI Motohiro
2010-11-15 14:13 ` Christoph Lameter
2010-11-15 14:21 ` Andi Kleen
2010-11-15 14:37 ` Andrea Arcangeli
2010-11-15 14:33 ` Andrea Arcangeli
2010-11-17 17:03 ` Lee Schermerhorn
2010-11-17 21:27 ` Andrea Arcangeli
2010-11-16 4:54 ` KOSAKI Motohiro
2010-11-17 14:45 ` Lee Schermerhorn
2010-11-17 17:10 ` Avi Kivity
2010-11-17 17:34 ` Lee Schermerhorn
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