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Robert Jennings 925cc71e51 mm: Add notifier in pageblock isolation for balloon drivers 
Memory balloon drivers can allocate a large amount of memory which is not
movable but could be freed to accomodate memory hotplug remove.

Prior to calling the memory hotplug notifier chain the memory in the
pageblock is isolated.  Currently, if the migrate type is not
MIGRATE_MOVABLE the isolation will not proceed, causing the memory removal
for that page range to fail.

Rather than failing pageblock isolation if the migrateteype is not
MIGRATE_MOVABLE, this patch checks if all of the pages in the pageblock,
and not on the LRU, are owned by a registered balloon driver (or other
entity) using a notifier chain.  If all of the non-movable pages are owned
by a balloon, they can be freed later through the memory notifier chain
and the range can still be isolated in set_migratetype_isolate().

Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Brian King <brking@linux.vnet.ibm.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Gerald Schaefer <geralds@linux.vnet.ibm.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
 		2009-12-18 14:53:36 +11:00
..
accessibility drop explicit include of autoconf.h 2009-12-12 13:08:15 +01:00
acpi Merge branch 'misc-2.6.33' into release 2009-12-16 14:22:32 -05:00
amba
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ata Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2009-12-12 14:27:24 -08:00
atm drivers/atm: Correct code taking the size of a pointer 2009-12-13 19:56:33 -08:00
auxdisplay
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base mm: Add notifier in pageblock isolation for balloon drivers 2009-12-18 14:53:36 +11:00
block Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block 2009-12-15 09:11:28 -08:00
bluetooth
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cdrom
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char Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2009-12-16 12:33:19 -08:00
clocksource cs5535: add a generic clock event MFGPT driver 2009-12-15 08:53:28 -08:00
connector
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cpufreq Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2009-12-14 09:58:24 -08:00
cpuidle drivers/cpuidle: Move dereference after NULL test 2009-12-15 08:53:25 -08:00
crypto Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2009-12-14 09:58:24 -08:00
dca
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dio
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dma Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx 2009-12-16 10:28:56 -08:00
edac Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp 2009-12-16 10:09:43 -08:00
eisa
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firewire Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2009-12-11 15:22:27 -08:00
firmware firmware: only allow EDD on x86 2009-12-15 08:53:34 -08:00
gpio gpiolib: add support for changing value polarity in sysfs 2009-12-16 07:20:01 -08:00
gpu Merge branch 'drm-vmware-staging' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 2009-12-16 13:19:31 -08:00
hid drop explicit include of autoconf.h 2009-12-12 13:08:15 +01:00
hwmon Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging 2009-12-17 16:48:08 -08:00
i2c const: constify remaining dev_pm_ops 2009-12-15 08:53:25 -08:00
ide Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2009-12-12 14:27:24 -08:00
idle cpumask: convert drivers/idle/i7300_idle.c to cpumask_var_t 2009-12-17 11:43:25 +10:30
ieee1394
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ieee802154
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infiniband Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2009-12-16 12:04:02 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2009-12-16 10:31:44 -08:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2009-12-14 12:33:02 -08:00
leds leds: leds-pwm: Set led_classdev max_brightness 2009-12-17 11:42:34 +00:00
lguest Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2009-12-14 09:58:24 -08:00
macintosh Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2009-12-12 14:27:24 -08:00
mca
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md Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm 2009-12-15 09:12:01 -08:00
media V4L/DVB (13698): pms: replace asm/uaccess.h to linux/uaccess.h 2009-12-16 09:28:01 -02:00
memstick
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message
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mfd mfd: compile fix for twl4030 renaming 2009-12-15 09:33:36 -08:00
misc Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2009-12-17 16:38:48 -08:00
mmc sdhci-of: add support for the wii sdhci controller 2009-12-17 15:45:32 -08:00
mtd Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus 2009-12-17 16:38:06 -08:00
net Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus 2009-12-17 16:38:06 -08:00
nubus
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of
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oprofile Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2009-12-14 09:58:24 -08:00
parisc parisc: Fixup last users of irq_chip->typename 2009-12-16 03:48:56 +00:00
parport parport_pc.c: use correct length in strncmp 2009-12-16 07:20:12 -08:00
pci Merge git://git.infradead.org/iommu-2.6 2009-12-16 10:11:38 -08:00
pcmcia PCMCIA: fix pxa2xx_lubbock modular build error 2009-12-16 20:11:02 +00:00
platform Merge branch 'for-33' of git://repo.or.cz/linux-kbuild 2009-12-17 07:23:42 -08:00
pnp Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2009-12-16 12:33:19 -08:00
power Merge git://git.infradead.org/battery-2.6 2009-12-15 08:59:33 -08:00
pps
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ps3
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rapidio
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regulator regulator: wm831x_reg_read() failure unnoticed in wm831x_aldo_get_mode() 2009-12-17 10:27:30 +00:00
rtc Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus 2009-12-17 16:38:06 -08:00
s390 tree-wide: convert open calls to remove spaces to skip_spaces() lib function 2009-12-15 08:53:32 -08:00
sbus
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scsi Merge branch 'cpumask-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus 2009-12-17 17:00:20 -08:00
serial Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 2009-12-16 10:29:52 -08:00
sfi
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sh
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sn ioc3/ioc4: fix error path on driver registration 2009-12-15 08:53:27 -08:00
spi Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6 2009-12-17 15:59:05 -08:00
ssb
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staging Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus 2009-12-17 16:38:06 -08:00
tc
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telephony
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thermal Merge branch 'misc-2.6.33' into release 2009-12-16 14:22:32 -05:00
uio const: constify remaining dev_pm_ops 2009-12-15 08:53:25 -08:00
usb Merge branch 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 2009-12-17 16:57:49 -08:00
uwb
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video Merge branch 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 2009-12-17 16:57:49 -08:00
virtio
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vlynq
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w1
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watchdog MIPS: eXcite: Remove platform. 2009-12-17 01:57:35 +00:00
xen
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zorro
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Kconfig cs5535: add a generic clock event MFGPT driver 2009-12-15 08:53:28 -08:00
Makefile
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