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Wei Liu 43e9d19432 xen-netback: remove page tracking facility 
The data flow from DomU to DomU on the same host in current copying
scheme with tracking facility:

       copy
DomU --------> Dom0          DomU
 |                            ^
 |____________________________|
             copy

The page in Dom0 is a page with valid MFN. So we can always copy from
page Dom0, thus removing the need for a tracking facility.

       copy           copy
DomU --------> Dom0 -------> DomU

Simple iperf test shows no performance regression (obviously we copy
twice either way):

  W/  tracking: ~5.3Gb/s
  W/o tracking: ~5.4Gb/s

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Matt Wilson <msw@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29 01:18:04 -04:00
..
accessibility
printk: move braille console support into separate braille.[ch] files
2013-07-31 14:41:03 -07:00
acpi
ACPI: Try harder to resolve _ADR collisions for bridges
2013-08-07 22:55:00 +02:00
amba
…
ata
pata_imx: expose module alias for loading from device-tree
2013-07-29 12:13:08 -04:00
atm
…
auxdisplay
…
base
regmap: cache: Make sure to sync the last register in a block
2013-08-05 15:51:09 +01:00
bcma
bcma: fix handling of big addrl
2013-07-22 16:54:40 -04:00
block
aoe: adjust ref of head for compound page tails
2013-08-13 17:57:48 -07:00
bluetooth
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth
2013-07-31 15:11:50 -04:00
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
More virtio console fixes than I'm happy with, but all real issues,
2013-08-08 09:32:20 -07:00
clk
clk: exynos4: Add CLK_GET_RATE_NOCACHE flag for the Exynos4x12 ISP clocks
2013-08-13 10:01:56 -07:00
clocksource
clocksource+irqchip: delete __cpuinit usage from all related files
2013-07-14 19:36:57 -04:00
connector
…
cpufreq
cpufreq: rename ignore_nice as ignore_nice_load
2013-08-07 22:25:06 +02:00
cpuidle
Revert "cpuidle: Quickly notice prediction failure for repeat mode"
2013-07-29 13:32:29 +02:00
crypto
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2013-07-24 11:05:18 -07:00
dca
…
devfreq
Merge branch 'akpm' (updates from Andrew Morton)
2013-07-03 17:12:13 -07:00
dio
…
dma
ARM: SoC fixes for v3.11-rc
2013-08-08 09:28:08 -07:00
edac
EDAC: Fix lockdep splat
2013-07-23 16:01:28 -07:00
eisa
…
extcon
drivers: avoid format string in dev_set_name
2013-07-03 16:07:41 -07:00
firewire
firewire: fix libdc1394/FlyCap2 iso event regression
2013-07-27 20:24:36 +02:00
firmware
dmi_scan: add comments on dmi_present() and the loop in dmi_scan_machine()
2013-07-31 14:41:02 -07:00
fmc
FMC: fix error handling in probe() function
2013-06-24 16:23:25 -07:00
gpio
gpio_msm: Fix build error due to missing err.h
2013-07-31 00:34:31 +02:00
gpu
Merge tag 'drm-intel-fixes-2013-08-15' of git://people.freedesktop.org/~danvet/drm-intel
2013-08-19 13:49:20 +10:00
hid
Revert "HID: hid-logitech-dj: querying_devices was never set"
2013-08-09 11:34:19 +02:00
hsi
drivers: avoid format string in dev_set_name
2013-07-03 16:07:41 -07:00
hv
Drivers: hv: balloon: Do not post pressure status if interrupted
2013-07-16 23:19:19 -07:00
hwmon
hwmon: (adt7470) Fix incorrect return code check
2013-08-08 12:43:07 -07:00
hwspinlock
…
i2c
i2c: Fix Kontron PLD prescaler calculation
2013-08-05 10:31:18 +02:00
ide
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide
2013-07-10 18:15:41 -07:00
idle
…
iio
iio: ti_am335x_adc: Fix wrong samples received on 1st read
2013-07-21 18:27:35 +01:00
infiniband
Merge branches 'cma', 'cxgb3', 'cxgb4', 'ipoib', 'misc', 'mlx4', 'mlx5', 'nes', 'ocrdma' and 'qib' into for-next
2013-07-31 14:24:06 -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
…
irqchip
clocksource+irqchip: delete __cpuinit usage from all related files
2013-07-14 19:36:57 -04:00
isdn
mISDN: replace sum of bitmasks with OR operation.
2013-07-19 17:34:41 -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
powerpc/windfarm: Fix noisy slots-fan on Xserve (rm31)
2013-08-01 13:11:47 +10:00
mailbox
…
md
dm cache: avoid conflicting remove_mapping() in mq policy
2013-08-16 15:56:51 -04:00
media
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
2013-08-09 15:04:09 -07:00
memory
…
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
Char/Misc patches for 3.11-rc3
2013-07-26 11:36:12 -07:00
mmc
ARM: pxa: propagate errors from regulator_enable() to pxamci
2013-07-23 12:15:15 -07:00
mtd
A couple of fixes and clean-ups, allow for assigning user-defined
2013-07-05 12:09:48 -07:00
net
xen-netback: remove page tracking facility
2013-08-29 01:18:04 -04:00
nfc
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2013-07-09 18:24:39 -07:00
ntb
…
nubus
…
of
of: fdt: fix memory initialization for expanded DT
2013-08-21 20:05:49 -05:00
oprofile
drivers: delete __cpuinit usage from all remaining drivers files
2013-07-14 19:36:59 -04:00
parisc
parisc: Fix interrupt routing for C8000 serial ports
2013-07-31 23:42:32 +02:00
parport
Merge branch 'akpm' (updates from Andrew Morton)
2013-07-03 17:12:13 -07:00
pci
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2013-08-16 15:37:26 -07:00
pcmcia
Driver core patches for 3.11-rc1
2013-07-02 11:44:19 -07:00
pinctrl
pinctrl: sunxi: Add spinlocks
2013-08-07 21:57:17 +02:00
platform
Merge branch 'akpm' (patches from Andrew Morton)
2013-08-23 09:52:32 -07:00
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
rapidio: fix use after free in rio_unregister_scan()
2013-07-31 14:41:02 -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
…
rpmsg
…
rtc
drivers/rtc/rtc-stmp3xxx.c: provide timeout for potentially endless loop polling a HW bit
2013-08-13 17:57:48 -07:00
s390
s390/dasd: fix hanging devices after path events
2013-07-30 16:17:25 +02:00
sbus
…
scsi
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2013-08-16 15:37:26 -07:00
sfi
…
sh
Merge branch 'pm-assorted'
2013-06-28 13:01:40 +02:00
sn
…
spi
spi: spi-davinci: Fix direction in dma_map_single()
2013-07-29 20:27:54 +01:00
ssb
ssb: drop BROKEN from SSB_SFLASH
2013-08-01 15:49:33 -04:00
staging
staging: zcache: fix "zcache=" kernel parameter
2013-07-29 11:45:09 -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
…
thermal
Thermal: Fix lockup of cpu_down()
2013-07-22 09:34:46 +08:00
tty
parisc: Fix interrupt routing for C8000 serial ports
2013-07-31 23:42:32 +02:00
uio
uio: use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT
2013-07-03 16:07:26 -07:00
usb
USB: keyspan: fix null-deref at disconnect and release
2013-08-14 12:49:27 -07:00
uwb
drivers: avoid format string in dev_set_name
2013-07-03 16:07:41 -07:00
vfio
vfio-pci: Avoid deadlock on remove
2013-07-24 16:36:41 -06:00
vhost
vhost: Include linux/uio.h instead of linux/socket.h
2013-08-20 15:05:04 -07:00
video
fbdev fixes:
2013-08-09 11:52:34 -07:00
virt
…
virtio
No real surprises.
2013-07-10 14:50:58 -07:00
vlynq
…
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
Bug-fixes:
2013-08-21 16:38:33 -07:00
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