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Peter Hurley fb7aa03db6 n_tty: Separate buffer indices to prevent cache-line sharing 
If the read buffer indices are in the same cache-line, cpus will
contended over the cache-line (so called 'false sharing').

Separate the producer-published fields from the consumer-published
fields; document the locks relevant to each field.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-23 16:43:02 -07:00
..
accessibility
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acpi
ACPI video support fixes for 3.11
2013-07-21 10:11:04 -07:00
amba
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ata
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-07-13 14:52:21 -07:00
atm
net, atm/ambassader: convert skb->tail into skb_tail_pointer(skb)
2013-06-17 17:12:20 -07:00
auxdisplay
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base
Driver core patches for 3.11-rc2
2013-07-18 12:48:40 -07:00
bcma
bcma: add support for BCM43142
2013-06-27 13:42:16 -04:00
block
Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze
2013-07-10 10:16:07 -07:00
bluetooth
Bluetooth: Add missing reset_resume dev_pm_ops
2013-06-23 00:23:53 +01:00
bus
ARM SoC device tree changes
2013-07-02 14:23:01 -07:00
cdrom
drivers/cdrom/cdrom.c: use kzalloc() for failing hardware
2013-07-03 16:07:25 -07:00
char
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-07-13 14:52:21 -07:00
clk
Power management and ACPI updates for 3.11-rc1
2013-07-03 14:35:40 -07:00
clocksource
clocksource+irqchip: delete __cpuinit usage from all related files
2013-07-14 19:36:57 -04:00
connector
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cpufreq
Power management and ACPI fixes for 3.11-rc2
2013-07-19 09:59:06 -07:00
cpuidle
Power management and ACPI updates for 3.11-rc1
2013-07-03 14:35:40 -07:00
crypto
crypto: talitos: use sg_pcopy_to_buffer()
2013-07-09 10:33:30 -07:00
dca
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devfreq
Merge branch 'akpm' (updates from Andrew Morton)
2013-07-03 17:12:13 -07:00
dio
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dma
drivers/dma/iop-adma.c: fix new warnings
2013-07-09 10:33:19 -07:00
edac
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-07-13 14:52:21 -07:00
eisa
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extcon
drivers: avoid format string in dev_set_name
2013-07-03 16:07:41 -07:00
firewire
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firmware
efivars: check for EFI_RUNTIME_SERVICES
2013-07-11 11:00:31 +01:00
fmc
FMC: fix error handling in probe() function
2013-06-24 16:23:25 -07:00
gpio
Power management and ACPI updates for 3.11-rc1
2013-07-03 14:35:40 -07:00
gpu
ACPI video support fixes for 3.11
2013-07-21 10:11:04 -07:00
hid
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2013-07-04 15:35:08 -07:00
hsi
drivers: avoid format string in dev_set_name
2013-07-03 16:07:41 -07:00
hv
drivers: hv: allocate synic structures before hv_synic_init()
2013-06-24 16:24:17 -07:00
hwmon
Single patch to staticize a local variable
2013-07-18 11:32:36 -07:00
hwspinlock
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i2c
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-07-13 14:52:21 -07:00
ide
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide
2013-07-10 18:15:41 -07:00
idle
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iio
The first round of IIO fixes for the 3.11 cycle.
2013-07-16 22:41:38 -07:00
infiniband
Main batch of InfiniBand/RDMA changes for 3.11 merge window:
2013-07-13 12:57:21 -07:00
input
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2013-07-13 18:05:13 -07:00
iommu
IOMMU Updates for Linux 3.11
2013-07-10 14:46:40 -07:00
ipack
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irqchip
clocksource+irqchip: delete __cpuinit usage from all related files
2013-07-14 19:36:57 -04:00
isdn
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2013-07-09 18:24:39 -07:00
leds
leds: mc13783: Fix "uninitialized variable" warning
2013-07-02 08:44:02 -07:00
lguest
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2013-07-04 11:40:58 -07:00
macintosh
macintosh/windfarm: Remove obsolete cleanup for clientdata
2013-07-01 11:46:56 +10:00
mailbox
…
md
md/raid1: fix bio handling problems in process_checks()
2013-07-18 14:18:04 +10:00
media
[media] saa7134: Fix unlocked snd_pcm_stop() call
2013-07-15 21:25:14 +02:00
memory
memory: tegra30-mc: Fix IRQ handler.
2013-06-17 16:46:06 -07:00
memstick
drivers/memstick/host/r592.c: convert to module_pci_driver
2013-07-03 16:08:06 -07:00
message
drivers: avoid format strings in names passed to alloc_workqueue()
2013-07-03 16:07:41 -07:00
mfd
For the 3.11 merge we only have one new MFD driver for the Kontron PLD.
2013-07-10 11:10:27 -07:00
misc
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2013-07-04 11:40:58 -07:00
mmc
MMC highlights for 3.11:
2013-07-10 11:16:00 -07:00
mtd
A couple of fixes and clean-ups, allow for assigning user-defined
2013-07-05 12:09:48 -07:00
net
tty: Convert termios_mutex to termios_rwsem
2013-07-23 16:43:01 -07:00
nfc
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2013-07-09 18:24:39 -07:00
ntb
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nubus
…
of
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2013-07-09 18:24:39 -07:00
oprofile
drivers: delete __cpuinit usage from all remaining drivers files
2013-07-14 19:36:59 -04:00
parisc
parisc: fix LMMIO mismatch between PAT length and MASK register
2013-07-09 22:09:16 +02:00
parport
Merge branch 'akpm' (updates from Andrew Morton)
2013-07-03 17:12:13 -07:00
pci
Merge branch 'akpm' (updates from Andrew Morton)
2013-07-03 17:12:13 -07:00
pcmcia
Driver core patches for 3.11-rc1
2013-07-02 11:44:19 -07:00
pinctrl
Pin control changes for the v3.11 kernel cycle:
2013-07-03 11:48:03 -07:00
platform
x86 platform drivers: fix gpio leak
2013-07-10 15:42:51 -04:00
pnp
PNP / ACPI: avoid garbage in resource name
2013-07-18 01:38:59 +02:00
power
Nothing exciting this time, just assorted fixes and cleanups.
2013-07-10 11:13:00 -07:00
pps
pps-gpio: add device-tree binding and support
2013-07-03 16:08:06 -07:00
ps3
…
ptp
build some drivers only when compile-testing
2013-06-24 16:41:32 -07:00
pwm
pwm: pwm-tiehrpwm: Use clk_enable/disable instead clk_prepare/unprepare.
2013-06-26 23:23:54 +02:00
rapidio
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-07-13 14:52:21 -07:00
regulator
For the 3.11 merge we only have one new MFD driver for the Kontron PLD.
2013-07-10 11:10:27 -07:00
remoteproc
Trivial remoteproc fixes by Suman Anna, Wei Yongjun and Thomas Meyer.
2013-07-11 12:35:09 -07:00
reset
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rpmsg
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rtc
For the 3.11 merge we only have one new MFD driver for the Kontron PLD.
2013-07-10 11:10:27 -07:00
s390
s390/zcrypt: Alias for new zcrypt device driver base module
2013-07-19 08:37:39 +02:00
sbus
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scsi
SCSI for-linus on 20130713
2013-07-13 17:41:21 -07:00
sfi
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sh
Merge branch 'pm-assorted'
2013-06-28 13:01:40 +02:00
sn
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spi
Merge remote-tracking branch 'spi/fix/xilinx' into spi-linus
2013-07-15 11:46:16 +01:00
ssb
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-07-13 14:52:21 -07:00
staging
Staging tree fixes for 3.11-rc2
2013-07-20 15:42:38 -07:00
target
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2013-07-11 12:57:19 -07:00
tc
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thermal
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
2013-07-11 12:26:08 -07:00
tty
n_tty: Separate buffer indices to prevent cache-line sharing
2013-07-23 16:43:02 -07:00
uio
uio: use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT
2013-07-03 16:07:26 -07:00
usb
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-07-13 14:52:21 -07:00
uwb
drivers: avoid format string in dev_set_name
2013-07-03 16:07:41 -07:00
vfio
vfio Updates for v3.11
2013-07-10 14:50:08 -07:00
vhost
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2013-07-11 12:57:19 -07:00
video
uvesafb: Really allow mtrr being 0, as documented and warn()ed
2013-07-16 10:24:28 +10:00
virt
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virtio
No real surprises.
2013-07-10 14:50:58 -07:00
vlynq
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vme
vme: vme_tsi148.c: fix error return code in tsi148_probe()
2013-06-24 16:23:25 -07:00
w1
drivers/w1/slaves/w1_ds2408.c: add magic sequence to disable P0 test mode
2013-07-03 16:08:06 -07:00
watchdog
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-07-13 14:52:21 -07:00
xen
drivers: delete __cpuinit usage from all remaining drivers files
2013-07-14 19:36:59 -04:00
zorro
zorro: switch to fixed_size_llseek()
2013-06-29 12:57:28 +04:00
Kconfig
For the 3.11 merge we only have one new MFD driver for the Kontron PLD.
2013-07-10 11:10:27 -07:00
Makefile
For the 3.11 merge we only have one new MFD driver for the Kontron PLD.
2013-07-10 11:10:27 -07:00