Michael S. Tsirkin d57ed95da4 virtio: use smp_XX barriers on SMP ... virtio is communicating with a virtual "device" that actually runs on another host processor. Thus SMP barriers can be used to control memory access ordering. Where possible, we should use SMP barriers which are more lightweight than mandatory barriers, because mandatory barriers also control MMIO effects on accesses through relaxed memory I/O windows (which virtio does not use) (compare specifically smp_rmb and rmb on x86_64). We can't just use smp_mb and friends though, because we must force memory ordering even if guest is UP since host could be running on another CPU, but SMP barriers are defined to barrier() in that configuration. So, for UP fall back to mandatory barriers instead. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>		2010-02-24 14:22:25 +10:30
..
accessibility
acpi	Merge branches 'bugzilla-14886', 'bugzilla-15000', 'bugzilla-15040', 'bugzilla-15108', 'pdc', 'hotplug-null-ref' and 'thinkpad' into release	2010-02-18 03:51:04 -05:00
amba
ata	[libata] Call flush_dcache_page after PIO data transfers in libata-sff.c	2010-02-04 01:04:50 -05:00
atm
auxdisplay
base	class: Free the class private data in class_release	2010-02-16 15:43:00 -08:00
block	cciss: Make cciss_seq_show handle holes in the h->drv[] array	2010-02-05 13:15:36 +01:00
bluetooth	Bluetooth: Fix memory leak in Marvell BT-over-SDIO driver	2010-02-03 19:08:30 -08:00
cdrom
char	Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-02-11 14:01:10 -08:00
clocksource	geode-mfgpt: restore previous behavior for selecting IRQ	2010-02-22 19:50:34 -08:00
connector	connector: Delete buggy notification code.	2010-02-02 15:58:48 -08:00
cpufreq	[CPUFREQ] Fix ondemand to not request targets outside policy limits	2010-01-13 10:55:16 -05:00
cpuidle	drivers/cpuidle/governors/menu.c: fix undefined reference to `__udivdi3'	2010-01-11 09:34:07 -08:00
crypto	crypto: padlock-sha - Add import/export support	2010-02-02 06:50:25 +11:00
dca
dio
dma	drivers/dma: Correct NULL test	2010-02-10 12:07:28 -07:00
edac	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp	2010-02-11 14:07:13 -08:00
eisa
firewire	firewire: ohci: retransmit isochronous transmit packets on cycle loss	2010-02-14 15:10:41 +01:00
firmware
gpio	gpio: adp5588-gpio: new driver for ADP5588 GPIO expanders	2010-01-11 09:34:07 -08:00
gpu	i915 / PM: Fix hibernate regression caused by suspend/resume splitting	2010-02-22 08:47:14 -08:00
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid	2010-01-13 16:10:13 -08:00
hwmon	hwmon: (w83781d) Request I/O ports individually for probing	2010-02-05 19:58:36 +01:00
i2c	i2c-tiny-usb: Fix on big-endian systems	2010-02-05 17:48:13 +01:00
ide
idle
ieee1394
ieee802154
infiniband	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband	2010-02-11 14:01:25 -08:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2010-02-22 08:48:06 -08:00
isdn	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6	2010-01-12 20:53:29 -08:00
leds
lguest
macintosh	powerpc/macintosh: Make Open Firmware device id constant	2010-01-15 13:26:04 +11:00
mca
md	dm: sysfs revert add empty release function to avoid debug warning	2010-02-16 18:43:04 +00:00
media	V4L/DVB: bttv: Move I2C IR initialization	2010-02-19 03:19:02 -02:00
memstick
message	[SCSI] mptfusion : mptscsih_abort return value should be SUCCESS instead of value 0.	2010-02-08 13:40:17 -06:00
mfd	mfd: Fix asic3 build	2010-01-29 21:03:09 +01:00
misc
mmc	mmc_test: block addressed cards	2010-02-11 13:59:42 -08:00
mtd	Merge branch 'for-linus' of git://git.infradead.org/ubi-2.6	2010-01-28 12:57:50 -08:00
net	sfc: SFE4002/SFN4112F: Widen temperature and voltage tolerances	2010-02-19 15:50:35 -08:00
nubus
of
oprofile
parisc
parport
pci	Merge branches 'bugzilla-14886', 'bugzilla-15000', 'bugzilla-15040', 'bugzilla-15108', 'pdc', 'hotplug-null-ref' and 'thinkpad' into release	2010-02-18 03:51:04 -05:00
pcmcia
platform	thinkpad-acpi: wrong thermal attribute_group removed in thermal_exit()	2010-02-16 03:10:10 -05:00
pnp
power	wm97xx_battery: Handle missing platform data gracefully	2010-01-29 17:00:18 +03:00
pps
ps3
rapidio
regulator	regulator/lp3971: vol_map out of bounds in lp3971_{ldo,dcdc}_set_voltage()	2010-02-12 11:39:49 +00:00
rtc	rtc-fm3130: add missing braces	2010-02-02 18:11:21 -08:00
s390	Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6	2010-02-11 14:05:55 -08:00
sbus
scsi	Merge master.kernel.org:/home/rmk/linux-2.6-arm	2010-02-20 16:55:05 -08:00
serial	serial: 8250: add serial transmitter fully empty test	2010-02-16 15:55:51 -08:00
sfi
sh
sn
spi	spi: spi_sh_msiof: Fixed data sampling on the correct edge	2010-02-02 11:29:15 +09:00
ssb	ssb: Fix CONFIG_SSB_SDIOHOST typo	2010-02-03 16:55:20 -05:00
staging	Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6	2010-02-01 10:46:49 -08:00
tc
telephony
thermal
uio
usb	USB: gadget: fix EEM gadget CRC usage	2010-02-16 15:11:10 -08:00
uwb
video	efifb: fix framebuffer handoff	2010-02-22 19:50:34 -08:00
virtio	virtio: use smp_XX barriers on SMP	2010-02-24 14:22:25 +10:30
vlynq
w1
watchdog	[WATCHDOG] bfin: fix max timeout calculation	2010-02-21 19:16:30 +00:00
xen	xen: fix hang on suspend.	2010-01-13 10:01:35 +00:00
zorro
Kconfig
Makefile