Christoph Lameter bc3e53f682 mm: distinguish between mlocked and pinned pages ... Some kernel components pin user space memory (infiniband and perf) (by increasing the page count) and account that memory as "mlocked". The difference between mlocking and pinning is: A. mlocked pages are marked with PG_mlocked and are exempt from swapping. Page migration may move them around though. They are kept on a special LRU list. B. Pinned pages cannot be moved because something needs to directly access physical memory. They may not be on any LRU list. I recently saw an mlockalled process where mm->locked_vm became bigger than the virtual size of the process (!) because some memory was accounted for twice: Once when the page was mlocked and once when the Infiniband layer increased the refcount because it needt to pin the RDMA memory. This patch introduces a separate counter for pinned pages and accounts them seperately. Signed-off-by: Christoph Lameter <cl@linux.com> Cc: Mike Marciniszyn <infinipath@qlogic.com> Cc: Roland Dreier <roland@kernel.org> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2011-10-31 17:30:46 -07:00
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accessibility	…
acpi	Merge branch 'next-rebase' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci	2011-10-28 14:20:44 -07:00
amba	…
ata	Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6	2011-10-28 16:44:18 -07:00
atm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2011-10-25 13:25:22 +02:00
auxdisplay	…
base	Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm	2011-10-25 15:18:39 +02:00
bcma	…
block	Merge branch 'for-linus' of git://ceph.newdream.net/git/ceph-client	2011-10-28 16:42:18 -07:00
bluetooth	Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm	2011-10-25 15:18:39 +02:00
cdrom	…
char	Merge branch 'drm-core-next' of git://people.freedesktop.org/~airlied/linux	2011-10-28 05:54:23 -07:00
clk	…
clocksource	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2011-10-26 17:15:03 +02:00
connector	connector: add comm change event report to proc connector	2011-09-28 13:41:50 -04:00
cpufreq	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2011-10-26 17:15:03 +02:00
cpuidle	…
crypto	…
dca	…
devfreq	PM / devfreq: Add basic governors	2011-10-02 00:19:34 +02:00
dio	…
dma	…
edac	amd64_edac: Cleanup return type of amd64_determine_edac_cap()	2011-10-06 12:35:46 +02:00
eisa	…
firewire	…
firmware	…
gpio	Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6	2011-10-29 07:27:45 -07:00
gpu	Merge branch 'drm-core-next' of git://people.freedesktop.org/~airlied/linux	2011-10-28 05:54:23 -07:00
hid	Merge branch 'next' into for-linus	2011-10-26 21:46:20 -07:00
hv	hv: remove struct hv_device_info from hyperv.h	2011-10-11 09:51:22 -06:00
hwmon	Merge branch 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2011-10-28 05:14:48 -07:00
hwspinlock	…
i2c	i2c-algo-pca: Return standard fault codes	2011-10-30 13:47:25 +01:00
ide	Merge branch 'gpio' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm	2011-10-27 08:39:10 +02:00
idle	…
ieee802154	…
infiniband	mm: distinguish between mlocked and pinned pages	2011-10-31 17:30:46 -07:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound	2011-10-28 14:25:01 -07:00
iommu	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu	2011-10-30 15:46:19 -07:00
isdn	Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty	2011-10-26 15:11:09 +02:00
leds	Merge branch 'x86-geode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2011-10-28 05:04:26 -07:00
lguest	lguest: move process freezing before pending signals check	2011-10-27 10:56:18 +10:30
macintosh	…
mca	…
md	Merge branch 'for-linus' of git://neil.brown.name/md	2011-10-31 15:21:29 -07:00
media	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu	2011-10-30 15:46:19 -07:00
memstick	…
message	…
mfd	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound	2011-10-28 14:25:01 -07:00
misc	Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core	2011-10-25 12:13:59 +02:00
mmc	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc	2011-10-28 14:16:11 -07:00
mtd	Merge branch 'gpio' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm	2011-10-27 08:39:10 +02:00
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2011-10-31 15:22:44 -07:00
nfc	…
nubus	…
of	of_mdio: Don't phy_scan_fixups() twice	2011-10-25 06:55:52 +02:00
oprofile	…
parisc	…
parport	parport_pc: release IO region properly if unsupported ITE887x card is found	2011-10-18 14:17:40 -07:00
pci	Merge branch 'next-rebase' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci	2011-10-28 14:20:44 -07:00
pcmcia	Merge branch 'gpio' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm	2011-10-27 08:39:10 +02:00
pinctrl	pinctrl/sirf: fix sirfsoc_get_group_pins prototype	2011-10-25 10:43:57 +02:00
platform	thinkpad_acpi: Fix printk typo 'bluestooth'	2011-10-07 09:39:51 +02:00
pnp	…
power	…
pps	…
ps3	…
ptp	…
rapidio	…
regulator	regulator: Add WM1811 support	2011-10-07 12:49:18 +01:00
rtc	…
s390	Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6	2011-10-28 16:44:18 -07:00
sbus	…
scsi	Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6	2011-10-28 16:44:18 -07:00
sfi	…
sh	…
sn	…
spi	Merge branch 'spi/next' of git://git.secretlab.ca/git/linux-2.6	2011-10-29 07:28:36 -07:00
ssb	…
staging	Merge branch 'fbdev-next' of git://github.com/schandinat/linux-2.6	2011-10-30 15:30:01 -07:00
target	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2011-10-25 12:11:02 +02:00
tc	…
telephony	…
thermal	…
tty	Merge branch 'spi/next' of git://git.secretlab.ca/git/linux-2.6	2011-10-29 07:28:36 -07:00
uio	uio: Support physical addresses >32 bits on 32-bit systems	2011-10-18 11:18:57 -07:00
usb	Merge branch 'devel-stable' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm	2011-10-28 12:02:27 -07:00
uwb	…
vhost	…
video	Merge branch 'fbdev-next' of git://github.com/schandinat/linux-2.6	2011-10-30 15:30:01 -07:00
virt	…
virtio	Add ethtool -g support to virtio_net	2011-10-24 02:07:21 -04:00
vlynq	…
w1	…
watchdog	Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2011-10-26 17:03:38 +02:00
xen	Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2011-10-26 16:44:09 +02:00
zorro	zorro: Fix four checkpatch warnings	2011-10-24 21:00:34 +02:00
Kconfig	Merge branch 'staging-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging	2011-10-26 15:39:02 +02:00
Makefile	Merge branch 'staging-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging	2011-10-26 15:39:02 +02:00