Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Andrew Morton 71c5576fbd revert "percpu counter: clean up percpu_counter_sum_and_set()" ... Revert commit 1f7c14c62c Author: Mingming Cao <cmm@us.ibm.com> Date: Thu Oct 9 12:50:59 2008 -0400 percpu counter: clean up percpu_counter_sum_and_set() Before this patch we had the following: percpu_counter_sum(): return the percpu_counter's value percpu_counter_sum_and_set(): return the percpu_counter's value, copying that value into the central value and zeroing the per-cpu counters before returning. After this patch, percpu_counter_sum_and_set() has gone, and percpu_counter_sum() gets the old percpu_counter_sum_and_set() functionality. Problem is, as Eric points out, the old percpu_counter_sum_and_set() functionality was racy and wrong. It zeroes out counters on "other" cpus, without holding any locks which will prevent races agaist updates from those other CPUS. This patch reverts 1f7c14c62c. This means that percpu_counter_sum_and_set() still has the race, but percpu_counter_sum() does not. Note that this is not a simple revert - ext4 has since started using percpu_counter_sum() for its dirty_blocks counter as well. Note that this revert patch changes percpu_counter_sum() semantics. Before the patch, a call to percpu_counter_sum() will bring the counter's central counter mostly up-to-date, so a following percpu_counter_read() will return a close value. After this patch, a call to percpu_counter_sum() will leave the counter's central accumulator unaltered, so a subsequent call to percpu_counter_read() can now return a significantly inaccurate result. If there is any code in the tree which was introduced after e8ced39d5e was merged, and which depends upon the new percpu_counter_sum() semantics, that code will break. Reported-by: Eric Dumazet <dada1@cosmosbay.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mingming Cao <cmm@us.ibm.com> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2008-12-10 08:01:52 -08:00
..
amba
byteorder
can	can: Fix CAN_(EFF|RTR)_FLAG handling in can_filter	2008-12-03 15:52:35 -08:00
dvb
hdlc
i2c
isdn
lockd
mfd	rtc: rtc-wm8350: add support for WM8350 RTC	2008-11-12 17:17:18 -08:00
mlx4	mlx4_core: Save/restore default port IB capability mask	2008-11-28 21:29:46 -08:00
mmc	mmc: struct device - replace bus_id with dev_name(), dev_set_name()	2008-11-08 21:37:46 +01:00
mtd	[MTD] [NOR] Fix cfi_send_gen_cmd handling of x16 devices in x8 mode (v4)	2008-11-05 14:40:25 +01:00
netfilter	netfilter: xtables: add missing const qualifier to xt_tgchk_param	2008-11-24 16:06:17 -08:00
netfilter_arp
netfilter_bridge
netfilter_ipv4
netfilter_ipv6
nfsd
raid
regulator
rtc
spi	spi: fix compile error	2008-10-30 11:38:47 -07:00
ssb	ssb: Fix DMA-API compilation for non-PCI systems	2008-11-10 13:50:19 -08:00
sunrpc
tc_act
tc_ematch
unaligned
usb
uwb
8250_pci.h
a.out.h
ac97_codec.h
acct.h
acpi.h	Merge branch 'video' into release	2008-11-11 21:15:50 -05:00
acpi_pmtmr.h
adb.h
adfs_fs.h
adfs_fs_i.h
adfs_fs_sb.h
aer.h
affs_hardblocks.h
agp_backend.h
agpgart.h
aio.h
aio_abi.h
amifd.h
amifdreg.h
amigaffs.h
anon_inodes.h
apm-emulation.h
apm_bios.h
arcdevice.h
arcfb.h
async_tx.h
ata.h
ata_platform.h
atalk.h
atm.h
atm_eni.h
atm_he.h
atm_idt77105.h
atm_nicstar.h
atm_suni.h
atm_tcp.h
atm_zatm.h
atmapi.h
atmarp.h
atmbr2684.h
atmclip.h
atmdev.h
atmel-pwm-bl.h
atmel-ssc.h
atmel_pdc.h
atmel_pwm.h
atmel_serial.h
atmel_tc.h
atmioc.h
atmlec.h
atmmpc.h
atmppp.h
atmsap.h
atmsvc.h
attribute_container.h
audit.h	[PATCH] fix broken timestamps in AVC generated by kernel threads	2008-12-09 02:27:41 -05:00
auto_dev-ioctl.h
auto_fs.h
auto_fs4.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: define __BIOVEC_PHYS_MERGEABLE	2008-11-06 08:41:55 +01:00
bit_spinlock.h
bitmap.h
bitops.h
bitrev.h
blkdev.h	Enforce a minimum SG_IO timeout	2008-12-05 14:49:18 -08:00
blkpg.h
blktrace_api.h
blockgroup_lock.h
bootmem.h
bottom_half.h
bpqether.h
brcmphy.h
bsg.h
buffer_head.h
bug.h
byteorder.h
c2port.h	Add c2 port support	2008-11-12 17:17:18 -08:00
cache.h
can.h
capability.h
capi.h
cciss_ioctl.h
cd1400.h
cdev.h
cdk.h
cdrom.h
cfag12864b.h
cgroup.h
cgroup_subsys.h
cgroupstats.h
chio.h
circ_buf.h
clk.h
clockchips.h
clocksource.h
cm4000_cs.h
cn_proc.h
cnt32_to_63.h	clarify usage expectations for cnt32_to_63()	2008-11-09 11:17:33 -08:00
coda.h
coda_cache.h
coda_fs_i.h
coda_linux.h
coda_psdev.h
coff.h
com20020.h
compat.h	remove __ARCH_WANT_COMPAT_SYS_PTRACE	2008-11-30 11:00:15 -08:00
compiler-gcc.h
compiler-gcc3.h
compiler-gcc4.h
compiler-intel.h
compiler.h
completion.h
comstats.h
concap.h
configfs.h
connector.h
console.h
console_struct.h
consolemap.h
const.h
cpu.h
cpufreq.h
cpuidle.h
cpumask.h	cpumask: introduce new API, without changing anything, v3	2008-11-09 21:09:54 +01:00
cpuset.h	cpuset: update top cpuset's mems after adding a node	2008-11-19 18:49:58 -08:00
cramfs_fs.h
cramfs_fs_sb.h
crash_dump.h
crc-ccitt.h
crc-itu-t.h
crc-t10dif.h
crc7.h
crc16.h
crc32.h
crc32c.h
cred.h
crypto.h
cryptohash.h
ctype.h
cuda.h
cyclades.h
cyclomx.h
cycx_cfm.h
cycx_drv.h
cycx_x25.h
dca.h
dcache.h
dccp.h
dcookies.h
debug_locks.h
debugfs.h
debugobjects.h
delay.h
delayacct.h
device-mapper.h
device.h
device_cgroup.h
devpts_fs.h
dio.h
dirent.h
display.h
dlm.h
dlm_device.h
dlm_netlink.h
dlm_plock.h
dlmconstants.h
dm-dirty-log.h
dm-io.h
dm-ioctl.h
dm-kcopyd.h
dm-region-hash.h
dm9000.h
dma-attrs.h
dma-mapping.h
dma_remapping.h
dmaengine.h
dmapool.h
dmar.h
dmi.h
dn.h
dnotify.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.h
ext2_fs_sb.h
ext3_fs.h
ext3_fs_i.h
ext3_fs_sb.h
ext3_jbd.h
f75375s.h
fadvise.h
falloc.h
fault-inject.h
fb.h
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.h	[PATCH 2/2] documnt FMODE_ constants	2008-12-04 04:22:58 -05:00
fs_enet_pd.h
fs_stack.h
fs_struct.h
fs_uart_pd.h
fsl_devices.h	gianfar: Fix race in TBI/SerDes configuration	2008-10-31 00:59:46 -04:00
fsnotify.h
ftrace.h
fuse.h
futex.h
gameport.h
gen_stats.h
genalloc.h
generic_acl.h
generic_serial.h
genetlink.h
genhd.h	block: make add_partition() return pointer to hd_struct	2008-11-18 15:08:56 +01:00
getcpu.h
gfp.h
gfs2_ondisk.h
gigaset_dev.h
gpio.h
gpio_keys.h
gpio_mouse.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	Allow architectures to override copy_user_highpage()	2008-11-27 23:39:48 +00:00
highuid.h
hil.h
hil_mlc.h
hippidevice.h
hp_sdc.h
hpet.h
hrtimer.h	hrtimer: clean up unused callback modes	2008-11-12 09:54:40 +01:00
htirq.h
hugetlb.h
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	amd74xx: workaround unreliable AltStatus register for nVidia controllers	2008-12-02 20:40:03 +01:00
idr.h	lib/idr.c: fix rcu related race with idr_find	2008-12-01 19:55:25 -08:00
ieee80211.h
if.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
if_ltalk.h
if_macvlan.h
if_packet.h
if_phonet.h
if_plip.h
if_ppp.h
if_pppol2tp.h
if_pppox.h
if_slip.h
if_strip.h
if_tr.h
if_tun.h
if_tunnel.h
if_vlan.h	net: fix packet socket delivery in rx irq handler	2008-11-04 14:49:57 -08:00
igmp.h
ihex.h
in.h
in6.h
in_route.h
inet.h
inet_diag.h
inet_lro.h
inetdevice.h
init.h
init_ohci1394_dma.h
init_task.h
initrd.h
inotify.h	Fix inotify watch removal/umount races	2008-11-15 12:26:44 -08:00
input-polldev.h
input.h	HID: map macbook keys for "Expose" and "Dashboard"	2008-11-13 10:31:36 +01:00
intel-iommu.h
interrupt.h
io-mapping.h	io mapping: clean up #ifdefs	2008-11-03 18:21:45 +01:00
io.h
ioc3.h
ioc4.h
iocontext.h
ioctl.h
iommu-helper.h
ioport.h
ioprio.h
iova.h
ip.h
ip6_tunnel.h
ip_vs.h
ipc.h
ipc_namespace.h
ipmi.h
ipmi_msgdefs.h
ipmi_smi.h
ipsec.h
ipv6.h
ipv6_route.h
ipx.h
irda.h
irq.h	irq.h: fix missing/extra kernel-doc	2008-11-23 10:52:45 +01:00
irq_cpustat.h
irqflags.h
irqnr.h
irqreturn.h
isa.h
isapnp.h
iscsi_ibft.h
isdn.h
isdn_divertif.h
isdn_ppp.h
isdnif.h
isicom.h
iso_fs.h
istallion.h
ivtv.h
ivtvfb.h
ixjuser.h
jbd.h
jbd2.h
jffs2.h
jhash.h
jiffies.h
journal-head.h
joystick.h
kallsyms.h
kbd_diacr.h
kbd_kern.h
Kbuild
kbuild.h
kd.h
kdebug.h
kdev_t.h
kernel.h	Add 'pr_fmt()' format modifier to pr_xyz macros.	2008-11-15 11:43:37 -08:00
kernel_stat.h
kernelcapi.h
kexec.h
key-type.h
key-ui.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.h
kvm_host.h
kvm_para.h
kvm_types.h
lapb.h
latencytop.h
lcd.h
leds-pca9532.h
leds.h
lguest.h
lguest_launcher.h
libata.h	libata: blacklist Seagate drives which time out FLUSH_CACHE when used with NCQ	2008-12-01 13:49:27 -05:00
libps2.h
license.h
limits.h
linkage.h
linux_logo.h
list.h
llc.h
lm_interface.h
lmb.h
lockdep.h	lockdep: include/linux/lockdep.h - fix warning in net/bluetooth/af_bluetooth.c	2008-11-13 23:19:10 -08:00
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
memcontrol.h
memory.h	hotplug_memory_notifier section annotation	2008-11-30 10:03:38 -08:00
memory_hotplug.h
mempolicy.h
mempool.h
memstick.h
meye.h
migrate.h
mii.h
minix_fs.h
miscdevice.h
mISDNdsp.h
mISDNhw.h
mISDNif.h
mm.h
mm_inline.h
mm_types.h
mman.h
mmdebug.h
mmiotrace.h
mmtimer.h
mmu_notifier.h
mmzone.h
mnt_namespace.h
mod_devicetable.h
module.h
moduleloader.h
moduleparam.h
mount.h
mpage.h
mqueue.h
mroute.h
mroute6.h
msdos_fs.h	fat: Cleanup FAT attribute stuff	2008-11-06 15:41:21 -08:00
msg.h
msi.h
mtio.h
mutex-debug.h
mutex.h
mv643xx.h
mv643xx_eth.h
mv643xx_i2c.h
n_r3964.h
namei.h
nbd.h
ncp.h
ncp_fs.h
ncp_fs_i.h
ncp_fs_sb.h
ncp_mount.h
ncp_no.h
neighbour.h
net.h	reintroduce accept4	2008-11-19 18:49:57 -08:00
netdevice.h	net: delete excess kernel-doc notation	2008-10-30 23:54:35 -07:00
netfilter.h
netfilter_arp.h
netfilter_bridge.h
netfilter_decnet.h
netfilter_ipv4.h
netfilter_ipv6.h
netlink.h
netpoll.h
netrom.h
nfs.h
nfs2.h
nfs3.h
nfs4.h
nfs4_acl.h
nfs4_mount.h
nfs_fs.h
nfs_fs_i.h
nfs_fs_sb.h
nfs_idmap.h
nfs_iostat.h
nfs_mount.h
nfs_page.h
nfs_xdr.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
numa.h
nvram.h
of.h
of_device.h
of_gpio.h
of_i2c.h
of_platform.h
of_spi.h
oom.h
oprofile.h
page-flags.h
page-isolation.h
page_cgroup.h	meminit section warnings	2008-11-30 10:03:35 -08:00
pageblock-flags.h
pagemap.h
pagevec.h
param.h
parport.h
parport_pc.h
parser.h
patchkey.h
path.h
pci-acpi.h
pci-aspm.h
pci.h	PCI: annotate return value of pci_ioremap_bar with __iomem	2008-11-03 14:31:18 -08:00
pci_hotplug.h
pci_ids.h
pci_regs.h
pcieport_if.h
pda_power.h
percpu.h
percpu_counter.h	revert "percpu counter: clean up percpu_counter_sum_and_set()"	2008-12-10 08:01:52 -08:00
personality.h
pfkeyv2.h
pfn.h
pg.h
phantom.h
phonedev.h
phonet.h
phy.h
phy_fixed.h
pid.h
pid_namespace.h
pim.h
pipe_fs_i.h
pkt_cls.h
pkt_sched.h
pktcdvd.h
platform_device.h
plist.h
pm.h
pm_qos_params.h
pm_wakeup.h
pmu.h
pnp.h
poison.h
poll.h
posix-timers.h
posix_acl.h
posix_acl_xattr.h
posix_types.h
power_supply.h
ppdev.h
ppp-comp.h
ppp_channel.h
ppp_defs.h
prctl.h
preempt.h
prefetch.h
prio_heap.h
prio_tree.h
proc_fs.h
profile.h
proportions.h
ptrace.h
pwm.h
pwm_backlight.h
qnx4_fs.h
qnxtypes.h
quicklist.h
quota.h
quotaio_v1.h
quotaio_v2.h
quotaops.h
radeonfb.h
radix-tree.h
raid_class.h
ramfs.h
random.h
ratelimit.h	remove ratelimt()	2008-11-12 17:17:17 -08:00
raw.h
rbtree.h
rcuclassic.h
rculist.h
rcupdate.h
rcupreempt.h
rcupreempt_trace.h
reboot.h
reciprocal_div.h
regset.h
reiserfs_acl.h
reiserfs_fs.h
reiserfs_fs_i.h
reiserfs_fs_sb.h
reiserfs_xattr.h
relay.h
res_counter.h
resource.h
resume-trace.h
rfkill.h
ring_buffer.h	ring-buffer: buffer record on/off switch	2008-11-11 15:02:04 -05:00
rio.h
rio_drv.h
rio_ids.h
rio_regs.h
rmap.h
romfs_fs.h
root_dev.h
rose.h
route.h
rslib.h
rtc-v3020.h
rtc.h
rtmutex.h
rtnetlink.h
rwsem-spinlock.h
rwsem.h
rxrpc.h
sc26198.h
scatterlist.h
scc.h
sched.h	epoll: introduce resource usage limits	2008-12-01 19:55:24 -08:00
screen_info.h
sctp.h
scx200.h
scx200_gpio.h
sdla.h
seccomp.h
securebits.h
security.h	nfsd: fix vm overcommit crash fix #2	2008-12-02 15:50:40 -08:00
selection.h
selinux.h
selinux_netlink.h
sem.h
semaphore.h
seq_file.h
seq_file_net.h
seqlock.h
serial.h
serial167.h
serial_8250.h
serial_core.h	serial: sh-sci: fix cannot work SH7723 SCIFA	2008-11-12 12:29:56 +09:00
serial_pnx8xxx.h
serial_reg.h
serial_sci.h
serialP.h
serio.h
sh_intc.h
shm.h
shmem_fs.h
signal.h
signalfd.h
skbuff.h
slab.h	slab: document SLAB_DESTROY_BY_RCU	2008-11-13 20:49:02 +02:00
slab_def.h
slob_def.h
slub_def.h
sm501-regs.h
sm501.h
smb.h
smb_fs.h
smb_fs_i.h
smb_fs_sb.h
smb_mount.h
smbno.h
smc91x.h
smc911x.h
smp.h	cpumask: introduce new API, without changing anything	2008-11-06 09:05:33 +01:00
smp_lock.h
snmp.h
socket.h
sockios.h
som.h
sonet.h
sony-laptop.h
sonypi.h
sort.h
sound.h
soundcard.h
spinlock.h
spinlock_api_smp.h
spinlock_api_up.h
spinlock_types.h
spinlock_types_up.h
spinlock_up.h
splice.h
srcu.h
stacktrace.h
stallion.h
start_kernel.h
stat.h
statfs.h
stddef.h
stop_machine.h
string.h	linux/string.h: fix comment typo	2008-11-02 10:15:07 -08:00
string_helpers.h
stringify.h
superhyway.h
suspend.h
suspend_ioctls.h
svga.h
swab.h
swap.h
swapops.h
swiotlb.h
synclink.h
sys.h
syscalls.h	reintroduce accept4	2008-11-19 18:49:57 -08:00
sysctl.h
sysdev.h
sysfs.h
sysrq.h
sysv_fs.h
task_io_accounting.h
task_io_accounting_ops.h
taskstats.h
taskstats_kern.h
tc.h
tcp.h
telephony.h	telephony: trivial: fix up email address	2008-11-11 09:30:23 -08:00
termios.h
textsearch.h
textsearch_fsm.h
tfrc.h
thermal.h
thread_info.h
threads.h
tick.h
tifm.h
time.h
timer.h	Add round_jiffies_up and related routines	2008-11-06 08:42:48 +01:00
timerfd.h
times.h
timex.h
tiocl.h
tipc.h
tipc_config.h
topology.h	sched: fine-tune SD_SIBLING_INIT	2008-11-07 16:09:23 +01:00
toshiba.h
tracehook.h
tracepoint.h
transport_class.h
trdevice.h
tsacct_kern.h
tty.h
tty_driver.h
tty_flip.h
tty_ldisc.h
typecheck.h
types.h
uaccess.h
ucb1400.h
udf_fs_i.h
udp.h
uinput.h
uio.h
uio_driver.h
ultrasound.h
un.h
unistd.h
unwind.h
usb.h	USB: don't register endpoints for interfaces that are going away	2008-11-13 14:45:00 -08:00
usb_usual.h
usbdevice_fs.h
user.h
user_namespace.h
utime.h
uts.h
utsname.h
uwb.h
vermagic.h
veth.h
vfs.h
via.h
video_decoder.h
video_encoder.h
video_output.h
videodev.h
videodev2.h
videotext.h
virtio.h
virtio_9p.h
virtio_balloon.h
virtio_blk.h
virtio_config.h
virtio_console.h
virtio_net.h
virtio_pci.h
virtio_ring.h
virtio_rng.h
vmalloc.h
vmstat.h
vt.h
vt_buffer.h
vt_kern.h
w1-gpio.h
wait.h
wanrouter.h
watchdog.h
wireless.h
wlp.h
wm97xx.h
wm97xx_batt.h
workqueue.h	cpumask: introduce new API, without changing anything	2008-11-06 09:05:33 +01:00
writeback.h
x25.h
xattr.h
xfrm.h
xilinxfb.h
yam.h
zconf.h
zlib.h
zorro.h
zorro_ids.h
zutil.h