Dave Hansen bf50e69f63 virtio balloon: kill tell-host-first logic ... The virtio balloon driver has a VIRTIO_BALLOON_F_MUST_TELL_HOST feature bit. Whenever the bit is set, the guest kernel must always tell the host before we free pages back to the allocator. Without this feature, we might free a page (and have another user touch it) while the hypervisor is unprepared for it. But, if the bit is _not_ set, we are under no obligation to reverse the order; we're under no obligation to do _anything_. As of now, qemu-kvm defines the bit, but doesn't set it. This patch makes the "tell host first" logic the only case. This should make everybody happy, and reduce the amount of untested or untestable code in the kernel. This _also_ means that we don't have to preserve a pfn list after the pages are freed, which should let us get rid of some temporary storage (vb->pfns) eventually. Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>		2011-05-30 11:14:13 +09:30
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accessibility
acpi	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6	2011-05-29 11:19:16 -07:00
amba	ARM: 6829/1: amba: make hardcoded periphid override hardware	2011-05-26 10:33:34 +01:00
ata	Merge branch 'for-2.6.40/core' of git://git.kernel.dk/linux-2.6-block	2011-05-25 09:14:07 -07:00
atm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6	2011-05-20 13:43:21 -07:00
auxdisplay
base	mm: per-node vmstat: show proper vmstats	2011-05-25 08:39:07 -07:00
bcma	drivers/bcma/host_pci.c needs slab.h	2011-05-26 17:12:32 -07:00
block	drivers, block: virtio_blk: Replace cryptic number with the macro	2011-05-30 11:14:13 +09:30
bluetooth	Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6	2011-05-24 13:28:35 -07:00
cdrom	Merge commit 'v2.6.39' into for-2.6.40/core	2011-05-20 20:33:15 +02:00
char	virtio console: don't manually set or finalize VIRTIO_CONSOLE_F_MULTIPORT.	2011-05-30 11:14:13 +09:30
clk
clocksource	Merge branch 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6	2011-05-23 21:24:07 -07:00
connector
cpufreq	cpufreq: make DB8500 cpufreq driver compile	2011-05-24 22:20:14 +02:00
cpuidle	Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6	2011-05-29 11:18:09 -07:00
crypto	[S390] ap: skip device registration on type probe failure	2011-05-23 10:24:29 +02:00
dca
dio
dma	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx	2011-05-28 12:35:15 -07:00
edac	edac,rcu: use synchronize_rcu() instead of call_rcu()+rcu_barrier()	2011-05-26 17:12:37 -07:00
eisa
firewire
firmware	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2011-05-23 09:12:26 -07:00
gpio	arm gpio drivers: make them 'depends on ARM'	2011-05-29 14:06:42 -07:00
gpu	vmscan: change shrinker API by passing shrink_control struct	2011-05-25 08:39:26 -07:00
hid	Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6	2011-05-23 12:33:02 -07:00
hwmon	hwmon: (coretemp) Fix section mismatch	2011-05-27 02:24:54 -07:00
hwspinlock
i2c	mfd: Use mfd cell platform_data for timberdale cells platform bits	2011-05-26 19:45:05 +02:00
ide	Merge branch 'for-2.6.40/core' of git://git.kernel.dk/linux-2.6-block	2011-05-25 09:14:07 -07:00
idle
ieee802154
infiniband	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband	2011-05-26 12:13:57 -07:00
input	input: Add support for Qualcomm PMIC8XXX power key	2011-05-26 19:45:54 +02:00
isdn	Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6	2011-05-26 13:19:00 -07:00
leds	leds: Add ASIC3 LED support	2011-05-26 19:45:46 +02:00
lguest
macintosh	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2011-05-23 09:12:26 -07:00
mca
md	dm kcopyd: return client directly and not through a pointer	2011-05-29 13:03:13 +01:00
media	Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6	2011-05-27 10:14:22 -07:00
memstick
message	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2011-05-23 09:12:26 -07:00
mfd	mfd: Fix build breakage caused by tps65910 gpio directory move	2011-05-28 08:38:55 +02:00
misc	kgdbts: unify/generalize gdb breakpoint adjustment	2011-05-26 17:12:36 -07:00
mmc	Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm	2011-05-27 19:51:32 -07:00
mtd	Merge git://git.infradead.org/mtd-2.6	2011-05-27 20:06:53 -07:00
net	Merge git://git.infradead.org/mtd-2.6	2011-05-27 20:06:53 -07:00
nfc
nubus
of	Merge branch 'devicetree/arm-next' of git://git.secretlab.ca/git/linux-2.6 into devel-stable	2011-05-25 00:08:17 +01:00
oprofile	oprofile: Use linux/mutex.h	2011-05-24 12:45:59 +02:00
parisc
parport	Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6	2011-05-26 13:19:00 -07:00
pci	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6	2011-05-29 11:19:16 -07:00
pcmcia
platform	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86	2011-05-29 11:44:33 -07:00
pnp
power	Merge git://git.infradead.org/battery-2.6	2011-05-27 10:12:35 -07:00
pps
ps3
ptp	ptp: Added a clock driver for the National Semiconductor PHYTER.	2011-05-23 13:10:23 -07:00
rapidio	rapidio: fix default routing initialization	2011-05-18 02:55:22 -07:00
regulator	regulator: Fix _regulator_get_voltage if get_voltage callback is NULL	2011-05-27 10:49:30 +01:00
rtc	drivers/rtc/rtc-mxc.c: remove defines already included in rtc.h	2011-05-26 17:12:33 -07:00
s390	[S390] irq: merge irq.c and s390_ext.c	2011-05-26 09:48:24 +02:00
sbus
scsi	scsi: fix scsi_proc new kernel-doc warning	2011-05-28 23:12:11 -07:00
sfi
sh	Merge branch 'sh/genirq-threading' into sh-latest	2011-05-23 11:36:14 +09:00
sn
spi	spi/spi_bfin_sport: new driver for a SPI bus via the Blackfin SPORT peripheral	2011-05-27 01:23:54 -06:00
ssb	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6	2011-05-20 13:43:21 -07:00
staging	Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6	2011-05-26 13:19:00 -07:00
target	[SCSI] target: Convert TASK_ATTR to scsi_tcq.h definitions	2011-05-24 13:03:56 -04:00
tc
telephony
thermal
tty	Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm	2011-05-27 19:51:32 -07:00
uio
usb	Merge branch 'for-usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci	2011-05-28 12:36:15 -07:00
uwb
vhost
video	drivers/video/mb862xx/mb862xxfbdrv.c needs uaccess.h	2011-05-26 17:12:32 -07:00
virtio	virtio balloon: kill tell-host-first logic	2011-05-30 11:14:13 +09:30
vlynq
w1	w1: add Maxim/Dallas DS2780 Stand-Alone Fuel Gauge IC support	2011-05-26 17:12:38 -07:00
watchdog	mfd: Use mfd cell platform_data for rdc321x cells platform bits	2011-05-26 19:45:06 +02:00
xen	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/djm/tmem	2011-05-26 10:50:56 -07:00
zorro
Kconfig	ptp: Added a brand new class driver for ptp clocks.	2011-05-23 13:01:00 -07:00
Makefile	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx	2011-05-28 12:35:15 -07:00