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33d268ed00
linux/drivers
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Philip P. Moltmann 33d268ed00 VMware balloon: Do not limit the amount of frees and allocations in non-sleep mode. 
When VMware's hypervisor requests a VM to reclaim memory this is preferrably done
via ballooning. If the balloon driver does not return memory fast enough, more
drastic methods, such as hypervisor-level swapping are needed. These other methods
cause performance issues, e.g. hypervisor-level swapping requires the hypervisor to
swap in a page syncronously while the virtual CPU is blocked.

Hence it is in the interest of the VM to balloon memory as fast as possible. The
problem with doing this is that the VM might end up doing nothing else than
ballooning and the user might notice that the VM is stalled, esp. when the VM has
only a single virtual CPU.

This is less of a problem if the VM and the hypervisor perform balloon operations
faster. Also the balloon driver yields regularly, hence on a single virtual CPU
the Linux scheduler should be able to properly time-slice between ballooning and
other tasks.

Testing Done: quickly ballooned a lot of pages while wathing if there are any
perceived hickups (periods of non-responsiveness) in the execution of the
linux VM. No such hickups were seen.

Signed-off-by: Xavier Deguillard <xdeguillard@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:59:11 +01:00
..
accessibility
acpi ACPI: Eliminate CONFIG_.*{, _MODULE} #ifdef in favor of IS_ENABLED() 2015-09-15 03:05:45 +02:00
amba
android mm: mark most vm_operations_struct const 2015-09-10 13:29:01 -07:00
ata
atm solos-pci: Increase headroom on received packets 2015-09-17 21:29:07 -07:00
auxdisplay
base driver core fix for 4.3-rc3 2015-09-26 20:54:53 -04:00
bcma
block Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2015-09-19 18:57:09 -07:00
bluetooth
bus
cdrom
char Merge 4.3-rc3 into char-misc-next 2015-09-27 12:44:02 -07:00
clk A few driver fixes for tegra, rockchip, and st SoCs and a two-liner 2015-09-19 20:17:40 -07:00
clocksource
connector
cpufreq cpufreq: acpi-cpufreq: Use cpufreq_cpu_get_raw() in ->get() 2015-09-16 02:17:49 +02:00
cpuidle Additional power management and ACPI material for v4.3-rc1 2015-09-11 19:11:06 -07:00
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2015-09-26 21:05:23 -04:00
dca
devfreq PM / devfreq: Fix incorrect type issue. 2015-09-11 14:23:30 +09:00
dio
dma dma: Add support to program MIC x100 status descriptiors 2015-10-04 12:46:06 +01:00
dma-buf
edac edac updates for v4.3-rc1 2015-09-11 16:21:12 -07:00
eisa
extcon extcon: Fix attached value returned by is_extcon_changed 2015-09-21 15:07:19 +09:00
firewire
firmware ARM: SoC fixes for v4.3-rc 2015-09-27 06:45:18 -04:00
fmc
gpio Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-09-18 08:11:42 -07:00
gpu Merge tag 'drm-intel-fixes-2015-09-24' of git://anongit.freedesktop.org/drm-intel into drm-fixes 2015-09-25 06:52:37 +10:00
hid
hsi mm: mark most vm_operations_struct const 2015-09-10 13:29:01 -07:00
hv Drivers: hv: vmbus: fix init_vp_index() for reloading hv_netvsc 2015-09-20 22:44:51 -07:00
hwmon hwmon: (nct6775) Add support for NCT6793D 2015-09-12 19:43:02 -07:00
hwspinlock
hwtracing/coresight
i2c
ide
idle
iio
infiniband Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-09-26 21:02:42 -04:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2015-09-11 19:17:28 -07:00
iommu iommu: Allow iova to be used without requiring IOMMU_SUPPORT 2015-10-04 12:46:06 +01:00
ipack
irqchip irqchip/atmel-aic5: Use per chip mask caches in mask/unmask() 2015-09-22 15:55:51 +02:00
isdn
leds leds:lp55xx: Correct Kconfig dependency for f/w user helper 2015-09-17 10:02:20 +02:00
lguest
macintosh
mailbox
mcb
md dm crypt: constrain crypt device's max_segment_size to PAGE_SIZE 2015-09-14 12:04:24 -04:00
media media updates for v4.3-rc1 2015-09-11 16:42:39 -07:00
memory
memstick
message
mfd genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
misc VMware balloon: Do not limit the amount of frees and allocations in non-sleep mode. 2015-10-04 12:59:11 +01:00
mmc
mtd
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-09-26 06:01:33 -04:00
nfc mei: bus: use mei_cldev_ prefix for the API functions 2015-09-20 19:31:10 -07:00
ntb
nubus
nvdimm pmem: add proper fencing to pmem_rw_page() 2015-09-17 11:49:28 -04:00
nvmem nvmem: rockchip_efuse_regmap_config can be static 2015-10-04 12:08:14 +01:00
of Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-09-26 06:01:33 -04:00
oprofile
parisc PCI: Revert "PCI: Call pci_read_bridge_bases() from core instead of arch code" 2015-09-15 13:18:04 -05:00
parport
pci PCI updates for v4.3: 2015-09-25 11:16:53 -07:00
pcmcia
perf
phy
pinctrl Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-09-18 08:11:42 -07:00
platform platform-drivers-x86 for 4.3-2 2015-09-17 21:41:02 -07:00
pnp
power power supply and reset fixes for the v4.3 series 2015-09-17 12:25:42 -07:00
powercap
pps
ps3
ptp
pwm
rapidio
ras
regulator Merge commit 'b8c93646fd5c' into omap-for-v4.3/fixes 2015-09-24 16:23:20 -07:00
remoteproc
reset
rpmsg
rtc
s390 virtio: fixes on top of 4.3-rc1 2015-09-18 09:28:20 -07:00
sbus
scsi Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-09-11 19:00:42 -07:00
sfi
sh SH Drivers Updates for v4.3 2015-09-21 12:02:27 -07:00
sn
soc genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
spi Merge remote-tracking branches 'spi/fix/spidev' and 'spi/fix/xtfpga' into spi-linus 2015-09-22 09:48:41 -07:00
spmi spmi: Auto-populate driver.owner in spmi_driver_register() 2015-09-20 19:32:02 -07:00
ssb
staging Staging driver fixes for 4.3-rc3 2015-09-26 20:56:50 -04:00
target iscsi-target: Avoid OFMarker + IFMarker negotiation 2015-09-24 23:24:46 -07:00
tc
thermal thermal: power_allocator: exit early if there are no cooling devices 2015-09-20 15:37:16 +08:00
thunderbolt thunderbolt: Allow loading of module on recent Apple MacBooks with thunderbolt 2 controller 2015-09-20 15:20:11 -07:00
tty tty: serial: Add missing module license for 8250_base.ko 2015-09-22 09:09:15 -07:00
uio uio: fix false positive __might_sleep warning splat 2015-10-04 12:32:25 +01:00
usb USB: whiteheat: fix potential null-deref at probe 2015-09-23 12:15:19 -07:00
uwb
vfio
vhost virtio: fixes on top of 4.3-rc1 2015-09-18 09:28:20 -07:00
video Merge branch 'akpm' (patches from Andrew) 2015-09-10 18:19:42 -07:00
virt
virtio
vlynq
vme
w1
watchdog Merge git://www.linux-watchdog.org/linux-watchdog 2015-09-11 15:12:59 -07:00
xen Merge branch 'akpm' (patches from Andrew) 2015-09-10 18:19:42 -07:00
zorro
Kconfig
Makefile