Mel Gorman 5a6fe12595 Do not account for the address space used by hugetlbfs using VM_ACCOUNT ... When overcommit is disabled, the core VM accounts for pages used by anonymous shared, private mappings and special mappings. It keeps track of VMAs that should be accounted for with VM_ACCOUNT and VMAs that never had a reserve with VM_NORESERVE. Overcommit for hugetlbfs is much riskier than overcommit for base pages due to contiguity requirements. It avoids overcommiting on both shared and private mappings using reservation counters that are checked and updated during mmap(). This ensures (within limits) that hugepages exist in the future when faults occurs or it is too easy to applications to be SIGKILLed. As hugetlbfs makes its own reservations of a different unit to the base page size, VM_ACCOUNT should never be set. Even if the units were correct, we would double account for the usage in the core VM and hugetlbfs. VM_NORESERVE may be set because an application can request no reserves be made for hugetlbfs at the risk of getting killed later. With commit fc8744adc8, VM_NORESERVE and VM_ACCOUNT are getting unconditionally set for hugetlbfs-backed mappings. This breaks the accounting for both the core VM and hugetlbfs, can trigger an OOM storm when hugepage pools are too small lockups and corrupted counters otherwise are used. This patch brings hugetlbfs more in line with how the core VM treats VM_NORESERVE but prevents VM_ACCOUNT being set. Signed-off-by: Mel Gorman <mel@csn.ul.ie> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2009-02-10 10:48:42 -08:00
..
amba
byteorder
can
dvb
hdlc
i2c
isdn
lockd
mfd
mlx4
mmc
mtd
netfilter
netfilter_arp
netfilter_bridge
netfilter_ipv4
netfilter_ipv6
nfsd
raid
regulator
rtc
spi
ssb
sunrpc
tc_act
tc_ematch
unaligned
usb
uwb
wimax
8250_pci.h
a.out.h
ac97_codec.h
acct.h
acpi_pmtmr.h
acpi.h
adb.h
adfs_fs_i.h
adfs_fs_sb.h
adfs_fs.h
aer.h
affs_hardblocks.h
agp_backend.h
agpgart.h
aio_abi.h
aio.h
amifd.h
amifdreg.h
amigaffs.h
anon_inodes.h
apm_bios.h
apm-emulation.h
arcdevice.h
arcfb.h
async_tx.h
async.h	async: Rename _special -> _domain for clarity.	2009-02-08 09:56:11 -08:00
ata_platform.h
ata.h	ide/libata: fix ata_id_is_cfa() (take 4)	2009-02-02 22:45:10 -05:00
atalk.h
atm_eni.h
atm_he.h
atm_idt77105.h
atm_nicstar.h
atm_suni.h
atm_tcp.h
atm_zatm.h
atm.h
atmapi.h
atmarp.h
atmbr2684.h
atmclip.h
atmdev.h
atmel_pdc.h
atmel_pwm.h
atmel_serial.h
atmel_tc.h
atmel-mci.h
atmel-pwm-bl.h
atmel-ssc.h
atmioc.h
atmlec.h
atmmpc.h
atmppp.h
atmsap.h
atmsvc.h
attribute_container.h
audit.h
auto_dev-ioctl.h
auto_fs4.h
auto_fs.h
auxvec.h
ax25.h
b1lli.h
b1pcmcia.h
backing-dev.h
backlight.h
baycom.h
bcd.h
bfs_fs.h
binfmts.h
bio.h	bio.h: If they MUST be inlined, then use __always_inline	2009-02-02 12:41:07 +01:00
bit_spinlock.h
bitmap.h
bitops.h
bitrev.h
blkdev.h	block: fix inconsistent parenthesisation of QUEUE_FLAG_DEFAULT	2009-02-02 08:43:48 +01:00
blkpg.h
blktrace_api.h
blockgroup_lock.h
bootmem.h
bottom_half.h
bpqether.h
brcmphy.h
bsg.h
buffer_head.h
bug.h
c2port.h
cache.h
can.h
capability.h
capi.h
cciss_ioctl.h
cd1400.h
cdev.h
cdk.h
cdrom.h
cfag12864b.h
cgroup_subsys.h
cgroup.h
cgroupstats.h
chio.h
circ_buf.h
clk.h
clockchips.h	hrtimers: allow the hot-unplugging of all cpus	2009-01-30 22:35:29 +01:00
clocksource.h
cm4000_cs.h
cn_proc.h
cnt32_to_63.h
coda_cache.h
coda_fs_i.h
coda_linux.h
coda_psdev.h
coda.h
coff.h
com20020.h
compat.h
compiler-gcc3.h
compiler-gcc4.h
compiler-gcc.h
compiler-intel.h
compiler.h
completion.h
comstats.h
concap.h
configfs.h
connector.h
console_struct.h
console.h
consolemap.h
const.h
cpu.h
cpufreq.h
cpuidle.h
cpumask.h
cpuset.h
cramfs_fs_sb.h
cramfs_fs.h
crash_dump.h
crc7.h
crc16.h
crc32.h
crc32c.h
crc-ccitt.h
crc-itu-t.h
crc-t10dif.h
cred.h
crypto.h	crypto: api - Fix zeroing on free	2009-02-05 16:48:53 +11:00
cryptohash.h
ctype.h
cuda.h
cyclades.h
cyclomx.h
cycx_cfm.h
cycx_drv.h
cycx_x25.h
dca.h
dcache.h
dcbnl.h
dccp.h
dcookies.h
debug_locks.h
debugfs.h
debugobjects.h
delay.h
delayacct.h
device_cgroup.h
device-mapper.h
device.h
devpts_fs.h
dio.h
dirent.h
display.h
dlm_device.h
dlm_netlink.h
dlm_plock.h
dlm.h
dlmconstants.h
dm9000.h
dm-dirty-log.h
dm-io.h
dm-ioctl.h
dm-kcopyd.h
dm-region-hash.h
dma_remapping.h
dma-attrs.h
dma-mapping.h
dmaengine.h
dmapool.h
dmar.h
dmi.h
dn.h
dnotify.h
dqblk_qtree.h
dqblk_v1.h
dqblk_v2.h
dqblk_xfs.h
ds1wm.h
ds1286.h
ds17287rtc.h
dtlk.h
dw_dmac.h
dynamic_printk.h
edac.h
edd.h
eeprom_93cx6.h
efi.h
efs_fs_sb.h
efs_vh.h
eisa.h
elevator.h
elf-em.h
elf-fdpic.h
elf.h
elfcore-compat.h
elfcore.h
elfnote.h
enclosure.h
err.h
errno.h
errqueue.h
etherdevice.h
ethtool.h
eventfd.h
eventpoll.h
exportfs.h
ext2_fs_sb.h
ext2_fs.h
ext3_fs_i.h
ext3_fs_sb.h
ext3_fs.h
ext3_jbd.h
f75375s.h
fadvise.h
falloc.h
fault-inject.h
fb.h	fbmem: don't call copy_from/to_user() with mutex held	2009-02-05 12:56:46 -08:00
fcdevice.h
fcntl.h
fd.h
fddidevice.h
fdreg.h
fdtable.h
fib_rules.h
fiemap.h
file.h
filter.h
firewire-cdev.h
firewire-constants.h
firmware-map.h
firmware.h
flat.h
font.h
freezer.h
fs_enet_pd.h
fs_stack.h
fs_struct.h
fs_uart_pd.h
fs.h
fsl_devices.h
fsnotify.h
ftrace_irq.h
ftrace.h
fuse.h
futex.h
gameport.h
gen_stats.h
genalloc.h
generic_acl.h
generic_serial.h
genetlink.h
genhd.h
getcpu.h
gfp.h
gfs2_ondisk.h
gigaset_dev.h
gpio_keys.h
gpio_mouse.h
gpio.h
hardirq.h
hash.h
hayesesp.h
hdlc.h
hdlcdrv.h
hdpu_features.h
hdreg.h
hid-debug.h
hid.h
hiddev.h
hidraw.h
highmem.h
highuid.h
hil_mlc.h
hil.h
hippidevice.h
hp_sdc.h
hpet.h
hrtimer.h
htirq.h
hugetlb.h	Do not account for the address space used by hugetlbfs using VM_ACCOUNT	2009-02-10 10:48:42 -08:00
hw_random.h
hwmon-sysfs.h
hwmon-vid.h
hwmon.h
hysdn_if.h
i2c-algo-bit.h
i2c-algo-pca.h
i2c-algo-pcf.h
i2c-algo-sgi.h
i2c-dev.h
i2c-gpio.h
i2c-id.h
i2c-ocores.h
i2c-pca-platform.h
i2c-pnx.h
i2c-pxa.h
i2c.h
i2o-dev.h
i2o.h
i8k.h
i7300_idle.h
i8042.h
ibmtr.h
icmp.h
icmpv6.h
ide.h
idr.h
ieee80211.h
if_addr.h
if_addrlabel.h
if_arcnet.h
if_arp.h
if_bonding.h
if_bridge.h
if_cablemodem.h
if_ec.h
if_eql.h
if_ether.h
if_fc.h
if_fddi.h
if_frad.h
if_hippi.h
if_infiniband.h
if_link.h	headers_check fix: linux/if_link.h	2009-01-30 23:54:53 +05:30
if_ltalk.h
if_macvlan.h
if_packet.h
if_phonet.h
if_plip.h
if_ppp.h	headers_check fix: linux/if_ppp.h	2009-01-30 23:55:45 +05:30
if_pppol2tp.h
if_pppox.h
if_slip.h
if_strip.h	headers_check fix: linux/if_strip.h	2009-01-30 23:56:13 +05:30
if_tr.h	headers_check fix: linux/if_tr.h	2009-01-30 23:56:48 +05:30
if_tun.h
if_tunnel.h	net: Fix userland breakage wrt. linux/if_tunnel.h	2009-02-02 13:27:44 -08:00
if_vlan.h
if.h
igmp.h	headers_check fix: linux/igmp.h	2009-01-30 23:57:16 +05:30
ihex.h
in6.h
in_route.h
in.h
inet_diag.h	headers_check fix: linux/inet_diag.h	2009-01-30 23:57:43 +05:30
inet_lro.h
inet.h
inetdevice.h
init_ohci1394_dma.h
init_task.h
init.h
initrd.h
inotify.h
input-polldev.h
input.h
intel-iommu.h
interrupt.h
io-mapping.h
io.h
ioc3.h
ioc4.h
iocontext.h
ioctl.h
iommu-helper.h
iommu.h
ioport.h
ioprio.h
iova.h
ip6_tunnel.h	headers_check fix: linux/ip6_tunnel.h	2009-01-30 23:58:12 +05:30
ip_vs.h
ip.h
ipc_namespace.h
ipc.h
ipmi_msgdefs.h
ipmi_smi.h
ipmi.h
ipsec.h
ipv6_route.h	headers_check fix: linux/ipv6_route.h	2009-01-30 23:59:12 +05:30
ipv6.h	headers_check fix: linux/ipv6.h	2009-01-30 23:58:41 +05:30
ipx.h	headers_check fix: linux/ipx.h	2009-01-30 23:59:44 +05:30
irda.h	headers_check fix: linux/irda.h	2009-01-31 00:00:06 +05:30
irq_cpustat.h
irq.h
irqflags.h
irqnr.h
irqreturn.h
isa.h
isapnp.h
iscsi_ibft.h
isdn_divertif.h
isdn_ppp.h
isdn.h
isdnif.h
isicom.h
iso_fs.h
istallion.h
ivtv.h
ivtvfb.h
ixjuser.h
jbd2.h
jbd.h
jffs2.h
jhash.h
jiffies.h
journal-head.h
joystick.h
kallsyms.h
kbd_diacr.h
kbd_kern.h
Kbuild	Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6	2009-02-02 23:55:27 -08:00
kbuild.h
kd.h
kdebug.h
kdev_t.h
kernel_stat.h
kernel.h	generic swap(): don't return a value from swap()	2009-02-05 12:56:46 -08:00
kernelcapi.h
kexec.h
key-type.h
key.h
keyboard.h
keyctl.h
kfifo.h
kgdb.h
klist.h
kmalloc_sizes.h
kmod.h
kobj_map.h
kobject.h
kprobes.h
kref.h
ks0108.h
kthread.h
ktime.h
kvm_host.h
kvm_para.h
kvm_types.h
kvm.h
lapb.h
latencytop.h
lcd.h
leds-pca9532.h
leds.h
lguest_launcher.h
lguest.h
libata.h	libata: implement HORKAGE_1_5_GBPS and apply it to WD My Book	2009-02-02 23:04:31 -05:00
libps2.h
license.h
limits.h
linkage.h
linux_logo.h
list_nulls.h
list.h
llc.h
lm_interface.h
lmb.h
lockdep.h
log2.h
loop.h
lp.h
lzo.h
m48t86.h
magic.h
major.h
map_to_7segment.h
maple.h
marker.h
math64.h
matroxfb.h
mbcache.h
mbus.h
mc6821.h
mc146818rtc.h
mca-legacy.h
mca.h
mdio-bitbang.h
mdio-gpio.h
memcontrol.h
memory_hotplug.h
memory.h
mempolicy.h
mempool.h
memstick.h
meye.h
migrate.h
mii.h
minix_fs.h	headers_check fix: linux/minix_fs.h	2009-01-31 00:00:35 +05:30
miscdevice.h
mISDNdsp.h
mISDNhw.h
mISDNif.h
mm_inline.h
mm_types.h
mm.h	Do not account for the address space used by hugetlbfs using VM_ACCOUNT	2009-02-10 10:48:42 -08:00
mman.h
mmdebug.h
mmiotrace.h
mmtimer.h
mmu_notifier.h
mmzone.h
mnt_namespace.h
mod_devicetable.h
module.h	module: remove over-zealous check in __module_get()	2009-02-07 08:33:01 -08:00
moduleloader.h
moduleparam.h
mount.h
mpage.h
mqueue.h
mroute6.h
mroute.h
msdos_fs.h	headers_check fix: linux/msdos_fs.h	2009-01-31 00:01:11 +05:30
msg.h
msi.h
mtio.h
mutex-debug.h
mutex.h
mv643xx_eth.h
mv643xx_i2c.h
mv643xx.h
n_r3964.h
namei.h
nbd.h
ncp_fs_i.h
ncp_fs_sb.h
ncp_fs.h
ncp_mount.h
ncp_no.h
ncp.h
neighbour.h	headers_check fix: linux/neighbour.h	2009-01-31 00:01:42 +05:30
net.h
netdevice.h
netfilter_arp.h
netfilter_bridge.h
netfilter_decnet.h
netfilter_ipv4.h
netfilter_ipv6.h
netfilter.h
netlink.h
netpoll.h
netrom.h
nfs2.h
nfs3.h
nfs4_acl.h
nfs4_mount.h
nfs4.h
nfs_fs_i.h
nfs_fs_sb.h
nfs_fs.h
nfs_idmap.h	headers_check fix: linux/nfs_idmap.h	2009-01-31 00:02:27 +05:30
nfs_iostat.h
nfs_mount.h
nfs_page.h
nfs_xdr.h
nfs.h
nfsacl.h
nfsd_idmap.h
nl80211.h
nls.h
nmi.h
node.h
nodemask.h
notifier.h
nsc_gpio.h
nsproxy.h
nubus.h	headers_check fix: linux/nubus.h	2009-01-31 00:15:24 +05:30
numa.h
nvram.h
nwpserial.h
of_device.h
of_gpio.h
of_i2c.h
of_platform.h
of_spi.h
of.h
oom.h
oprofile.h
oxu210hp.h
page_cgroup.h
page-flags.h
page-isolation.h
pageblock-flags.h
pagemap.h
pagevec.h
param.h
parport_pc.h
parport.h
parser.h
patchkey.h
path.h
pci_hotplug.h
pci_ids.h	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6	2009-02-02 19:28:58 -08:00
pci_regs.h
pci-acpi.h
pci-aspm.h
pci.h	PCI: return error on failure to read PCI ROMs	2009-02-04 16:58:41 -08:00
pcieport_if.h
pda_power.h
percpu_counter.h
percpu.h
personality.h
pfkeyv2.h
pfn.h
pg.h
phantom.h
phonedev.h
phonet.h	headers_check fix: linux/phonet.h	2009-01-31 00:02:54 +05:30
phy_fixed.h
phy.h
pid_namespace.h
pid.h
pim.h
pipe_fs_i.h
pkt_cls.h	headers_check fix: linux/pkt_cls.h	2009-01-31 00:03:40 +05:30
pkt_sched.h	headers_check fix: linux/pkt_sched.h	2009-01-31 00:04:50 +05:30
pktcdvd.h
platform_device.h
plist.h
pm_qos_params.h
pm_wakeup.h
pm.h
pmu.h
pnp.h
poison.h
poll.h
posix_acl_xattr.h
posix_acl.h
posix_types.h
posix-timers.h
power_supply.h
ppdev.h
ppp_channel.h
ppp_defs.h	headers_check fix: linux/ppp_defs.h	2009-01-31 00:05:30 +05:30
ppp-comp.h
prctl.h
preempt.h
prefetch.h
prio_heap.h
prio_tree.h
proc_fs.h
profile.h
proportions.h
ptrace.h
pwm_backlight.h
pwm.h
qnx4_fs.h
qnxtypes.h
quicklist.h
quota.h
quotaops.h
radeonfb.h
radix-tree.h
raid_class.h
ramfs.h
random.h	headers_check fix: linux/random.h	2009-01-31 00:05:59 +05:30
ratelimit.h
raw.h
rbtree.h
rcuclassic.h
rculist_nulls.h
rculist.h
rcupdate.h
rcupreempt_trace.h
rcupreempt.h
rcutree.h
reboot.h
reciprocal_div.h
regset.h
reiserfs_acl.h
reiserfs_fs_i.h
reiserfs_fs_sb.h
reiserfs_fs.h
reiserfs_xattr.h
relay.h
res_counter.h
resource.h
resume-trace.h
rfkill.h
ring_buffer.h
rio_drv.h
rio_ids.h
rio_regs.h
rio.h
rmap.h
romfs_fs.h
root_dev.h
rose.h
route.h
rslib.h
rtc-v3020.h
rtc.h
rtmutex.h
rtnetlink.h	headers_check fix: linux/rtnetlink.h	2009-01-31 00:15:57 +05:30
rwsem-spinlock.h
rwsem.h
rxrpc.h
sc26198.h
scatterlist.h
scc.h
sched.h	sched: add missing kernel-doc in sched.h	2009-02-03 06:32:10 +01:00
screen_info.h
sctp.h
scx200_gpio.h
scx200.h
sdla.h
seccomp.h
securebits.h
security.h
selection.h
selinux_netlink.h
selinux.h
sem.h
semaphore.h
seq_file_net.h
seq_file.h
seqlock.h
serial167.h
serial_8250.h
serial_core.h
serial_pnx8xxx.h
serial_reg.h
serial_sci.h
serial.h
serialP.h
serio.h
sh_intc.h
shm.h
shmem_fs.h
signal.h
signalfd.h	headers_check fix: linux/signalfd.h	2009-01-31 00:06:33 +05:30
skbuff.h
slab_def.h
slab.h
slob_def.h
slub_def.h
sm501-regs.h
sm501.h
smb_fs_i.h
smb_fs_sb.h
smb_fs.h
smb_mount.h
smb.h
smbno.h
smc91x.h
smc911x.h
smp_lock.h
smp.h
smsc911x.h
snmp.h
socket.h
sockios.h
som.h
sonet.h
sony-laptop.h
sonypi.h
sort.h
sound.h	headers_check fix: linux/sound.h	2009-01-31 00:07:00 +05:30
soundcard.h
spinlock_api_smp.h
spinlock_api_up.h
spinlock_types_up.h
spinlock_types.h
spinlock_up.h
spinlock.h	x86: spinlocks: define dummy __raw_spin_is_contended	2009-02-09 08:15:39 -08:00
splice.h
srcu.h
stacktrace.h
stallion.h
start_kernel.h
stat.h
statfs.h
stddef.h
stop_machine.h
string_helpers.h
string.h
stringify.h
superhyway.h
suspend_ioctls.h
suspend.h
svga.h
swab.h
swap.h
swapops.h
swiotlb.h
synclink.h	headers_check fix: linux/synclink.h	2009-01-31 00:07:31 +05:30
sys.h
syscalls.h
sysctl.h
sysdev.h
sysfs.h
sysrq.h
sysv_fs.h
task_io_accounting_ops.h
task_io_accounting.h
taskstats_kern.h
taskstats.h	headers_check fix: linux/taskstats.h	2009-01-31 00:08:18 +05:30
tc.h
tcp.h
telephony.h
termios.h
textsearch_fsm.h
textsearch.h
tfrc.h
thermal.h
thread_info.h
threads.h
tick.h
tifm.h
time.h
timer.h
timerfd.h
times.h
timex.h
tiocl.h
tipc_config.h
tipc.h
topology.h
toshiba.h
tracehook.h
tracepoint.h
transport_class.h
trdevice.h
tsacct_kern.h
tty_driver.h
tty_flip.h
tty_ldisc.h
tty.h
typecheck.h
types.h
uaccess.h
ucb1400.h
udf_fs_i.h
udp.h
uinput.h
uio_driver.h
uio.h
ultrasound.h
un.h
unistd.h
usb_usual.h
usb.h
usbdevice_fs.h
user_namespace.h
user.h
utime.h
uts.h
utsname.h
uwb.h
vermagic.h
veth.h
vfs.h
via.h
video_decoder.h	headers_check fix: linux/video_decoder.h	2009-01-31 00:09:13 +05:30
video_encoder.h	headers_check fix: linux/video_encoder.h	2009-01-31 00:10:11 +05:30
video_output.h
videodev2.h
videodev.h	headers_check fix: linux/videodev.h	2009-01-31 00:10:59 +05:30
videotext.h
virtio_9p.h
virtio_balloon.h
virtio_blk.h	headers_check fix: linux/virtio_blk.h	2009-01-31 00:11:25 +05:30
virtio_config.h
virtio_console.h	headers_check fix: linux/virtio_console.h	2009-01-31 00:12:44 +05:30
virtio_net.h	headers_check fix: linux/virtio_net.h	2009-01-31 00:13:08 +05:30
virtio_pci.h
virtio_ring.h
virtio_rng.h
virtio.h
vmalloc.h
vmstat.h
vt_buffer.h
vt_kern.h
vt.h
w1-gpio.h
wait.h	wait: prevent exclusive waiter starvation	2009-02-05 12:56:48 -08:00
wanrouter.h
watchdog.h
wimax.h
wireless.h
wlp.h
wm97xx_batt.h
wm97xx.h
workqueue.h
writeback.h
x25.h
xattr.h
xfrm.h
xilinxfb.h
yam.h
zconf.h
zlib.h
zorro_ids.h
zorro.h
zutil.h