linux/drivers
Michael S. Tsirkin 4678d6f970 virtio_blk: fix config handler race
Fix a theoretical race related to config work
handler: a config interrupt might happen
after we flush config work but before we
reset the device. It will then cause the
config work to run during or after reset.

Two problems with this:
- if this runs after device is gone we will get use after free
- access of config while reset is in progress is racy
(as layout is changing).

As a solution
1. flush after reset when we know there will be no more interrupts
2. add a flag to disable config access before reset

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-01-12 15:44:44 +10:30
..
accessibility
acpi Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu 2012-01-10 11:08:21 -08:00
amba Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm 2012-01-08 13:10:57 -08:00
ata Merge branch 'upstream-linus' of git://github.com/jgarzik/libata-dev 2012-01-10 10:19:17 -08:00
atm
auxdisplay
base Merge branch 'dma-buf-merge' of git://people.freedesktop.org/~airlied/linux 2012-01-08 14:05:09 -08:00
bcma bcma: extract revision and TX power IDs from SPROM 2011-12-13 15:47:41 -05:00
block virtio_blk: fix config handler race 2012-01-12 15:44:44 +10:30
bluetooth Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm 2012-01-08 13:10:57 -08:00
cdrom fs: move code out of buffer.c 2012-01-03 22:54:07 -05:00
char virtio: rename virtqueue_add_buf_gfp to virtqueue_add_buf 2012-01-12 15:44:42 +10:30
clk clk: add config option HAVE_CLK_PREPARE into Kconfig 2011-12-28 21:35:06 +08:00
clocksource Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm 2012-01-06 18:15:25 -08:00
connector
cpufreq Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core 2012-01-07 12:03:30 -08:00
cpuidle cpu: convert 'cpu' and 'machinecheck' sysdev_class to a regular subsystem 2011-12-21 14:29:42 -08:00
crypto
dca
devfreq Merge branch 'devfreq-for-next' of git://git.infradead.org/users/kmpark/linux-samsung into pm-devfreq 2011-12-21 09:51:23 +01:00
dio
dma clock management changes for i.MX 2012-01-09 14:44:15 -08:00
edac Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-01-08 13:21:22 -08:00
eisa
firewire
firmware Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-01-08 12:19:57 -08:00
gpio Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl 2012-01-10 10:19:57 -08:00
gpu Merge branch 'drm-core-next' of git://people.freedesktop.org/~airlied/linux 2012-01-10 11:04:36 -08:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2012-01-10 10:48:28 -08:00
hv Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb 2012-01-09 12:09:47 -08:00
hwmon Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging 2012-01-08 13:39:24 -08:00
hwspinlock
i2c Merge branch 'unicore32' of git://github.com/gxt/linux 2012-01-10 17:37:20 -08:00
ide
idle
ieee802154
infiniband infiniband changes for 3.3 merge window 2012-01-08 14:05:48 -08:00
input Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze 2012-01-10 17:37:49 -08:00
iommu Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu 2012-01-10 11:08:21 -08:00
isdn Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-01-08 13:21:22 -08:00
leds leds: convert wm8350 driver to devm_kzalloc() 2012-01-10 16:30:49 -08:00
lguest virtio: harsher barriers for rpmsg. 2012-01-12 15:44:42 +10:30
macintosh Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core 2012-01-07 12:03:30 -08:00
mca
md md update for 3.3 2012-01-08 13:28:33 -08:00
media Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu 2012-01-10 11:08:21 -08:00
memstick
message SCSI updates for post 3.2 merge window 2012-01-10 10:36:08 -08:00
mfd Driver specific changes 2012-01-09 14:39:22 -08:00
misc Merge branch 'char-misc-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc 2012-01-09 12:08:59 -08:00
mmc clock management changes for i.MX 2012-01-09 14:44:15 -08:00
mtd Merge branch 'linux-next' of git://git.infradead.org/ubifs-2.6 2012-01-10 14:57:19 -08:00
net virtio: rename virtqueue_add_buf_gfp to virtqueue_add_buf 2012-01-12 15:44:42 +10:30
nfc Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core 2012-01-07 12:03:30 -08:00
nubus
of of: add include asm/setup.h in drivers/of/fdt.c 2012-01-10 10:29:41 +08:00
oprofile Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-01-06 08:02:58 -08:00
parisc
parport Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty 2012-01-09 12:09:24 -08:00
pci Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu 2012-01-10 11:08:21 -08:00
pcmcia pcmcia: pxa: replace IRQ_GPIO() with gpio_to_irq() 2011-12-28 10:14:04 +00:00
pinctrl pinctrl: remove unnecessary max pin number 2012-01-03 09:10:09 +01:00
platform Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm 2012-01-08 13:10:57 -08:00
pnp
power switch ->is_visible() to returning umode_t 2012-01-03 22:54:55 -05:00
pps
ps3
ptp
rapidio
regulator regulator: set constraints.apply_uV to 0 in of_get_fixed_voltage_config 2012-01-06 11:01:09 -08:00
rtc Merge branch 'unicore32' of git://github.com/gxt/linux 2012-01-10 17:37:20 -08:00
s390 virtio: harsher barriers for rpmsg. 2012-01-12 15:44:42 +10:30
sbus
scsi SCSI updates for post 3.2 merge window 2012-01-10 10:36:08 -08:00
sfi
sh Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm 2012-01-08 13:10:57 -08:00
sn
spi Cleanups for the Samsung platforms 2012-01-09 14:30:28 -08:00
ssb Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2011-12-14 14:35:41 -05:00
staging Merge branch 'drm-core-next' of git://people.freedesktop.org/~airlied/linux 2012-01-10 11:04:36 -08:00
target
tc
telephony
thermal
tty Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next 2012-01-09 14:47:06 -08:00
uio
usb Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2012-01-10 10:48:28 -08:00
uwb Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb 2012-01-09 12:09:47 -08:00
vhost
video Merge branch 'akpm' (aka "Andrew's patch-bomb") 2012-01-10 16:42:48 -08:00
virt
virtio virtio: add debugging if driver doesn't kick. 2012-01-12 15:44:43 +10:30
vlynq
w1
watchdog Merge git://www.linux-watchdog.org/linux-watchdog 2012-01-10 10:29:23 -08:00
xen Merge branch 'drm-core-next' of git://people.freedesktop.org/~airlied/linux 2012-01-10 11:04:36 -08:00
zorro misc latin1 to utf8 conversions 2012-01-02 13:04:55 +01:00
Kconfig
Makefile