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linux/drivers
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Stefano Stabellini 2fc136eecd xen/m2p: do not reuse kmap_op->dev_bus_addr 
If the caller passes a valid kmap_op to m2p_add_override, we use
kmap_op->dev_bus_addr to store the original mfn, but dev_bus_addr is
part of the interface with Xen and if we are batching the hypercalls it
might not have been written by the hypervisor yet. That means that later
on Xen will write to it and we'll think that the original mfn is
actually what Xen has written to it.

Rather than "stealing" struct members from kmap_op, keep using
page->index to store the original mfn and add another parameter to
m2p_remove_override to get the corresponding kmap_op instead.
It is now responsibility of the caller to keep track of which kmap_op
corresponds to a particular page in the m2p_override (gntdev, the only
user of this interface that passes a valid kmap_op, is already doing that).

CC: stable@kernel.org
Reported-and-Tested-By: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-09-12 11:21:40 -04:00
..
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acpi Merge branch 'master' [vanilla Linus master] into libata-dev.git/upstream 2012-07-25 15:58:48 -04:00
amba
ata [libata] pata_cmd64x: whitespace cleanup 2012-07-25 16:07:40 -04:00
atm
auxdisplay
base Driver core merge for 3.6-rc1 2012-07-26 11:25:33 -07:00
bcma bcma: fix invalid PMU chip control masks 2012-07-26 12:46:54 -07:00
block xen/m2p: do not reuse kmap_op->dev_bus_addr 2012-09-12 11:21:40 -04:00
bluetooth Bluetooth: Introduce a flags variable to Three-wire UART state 2012-07-17 14:49:24 -03:00
cdrom
char Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2012-07-26 13:00:59 -07:00
clk The common clk framework changes for 3.6 include a small number of core 2012-07-24 16:40:57 -07:00
clocksource arm-soc: new SoC support 2012-07-23 16:31:31 -07:00
connector drivers: connector: fixed coding style issues 2012-07-16 23:23:52 -07:00
cpufreq Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-07-24 13:34:56 -07:00
cpuidle Merge branch 'pm-domains' 2012-07-19 00:03:17 +02:00
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2012-07-26 13:00:59 -07:00
dca
devfreq
dio
dma Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2012-07-24 17:12:54 -07:00
edac
eisa
extcon extcon: MAX77693: Add extcon-max77693 driver to support Maxim MAX77693 MUIC device 2012-07-17 10:34:56 -07:00
firewire
firmware
gpio arm-soc: sparse IRQ conversion 2012-07-23 17:36:02 -07:00
gpu gma500,cdv: Fix the brightness base 2012-07-16 09:20:33 -07:00
hid Merge branch 'next' into for-linus 2012-07-24 22:43:04 -07:00
hsi
hv Drivers: hv: Change the hex constant to a decimal constant 2012-07-19 15:27:33 -07:00
hwmon Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-07-24 13:34:56 -07:00
hwspinlock
i2c i2c-omap: Add support for I2C_M_STOP message flag 2012-07-24 14:13:59 +02:00
ide
idle
ieee802154
iio iio: fix pointer cast warning 2012-07-15 17:33:17 +01:00
infiniband InfiniBand/RDMA changes for the 3.6 merge window: 2012-07-24 13:56:26 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2012-07-26 12:59:53 -07:00
iommu IOMMU Updates for Linux v3.6-rc1 2012-07-24 16:24:11 -07:00
isdn ISDN: Add check for usb_alloc_urb() result 2012-07-18 09:40:54 -07:00
leds
lguest
macintosh
md Three fixes for device-mapper discard processing: 2012-07-20 11:51:22 -07:00
media Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-07-24 13:34:56 -07:00
memory
memstick
message
mfd Linux 3.5-rc7 2012-07-15 21:49:21 +01:00
misc CHAR/MISC patches for 3.6-rc1 2012-07-26 12:15:41 -07:00
mmc Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2012-07-24 17:12:54 -07:00
mtd Change the default amount of eraseblocks which UBI reserves for bad block 2012-07-23 15:53:06 -07:00
net PCI changes for the 3.6 merge window: 2012-07-24 16:17:07 -07:00
nfc
nubus
of Devicetree updates for 3.6 2012-07-24 14:07:22 -07:00
oprofile
parisc PCI changes for the 3.6 merge window: 2012-07-24 16:17:07 -07:00
parport
pci PCI changes for the 3.6 merge window: 2012-07-24 16:17:07 -07:00
pcmcia
pinctrl Pin control changes for v3.6: 2012-07-24 14:05:46 -07:00
platform Power management updates for 3.6 2012-07-22 13:36:52 -07:00
pnp
power Driver core merge for 3.6-rc1 2012-07-26 11:25:33 -07:00
pps
ps3
ptp
rapidio
regulator SCSI misc on 20120724 2012-07-24 18:11:22 -07:00
remoteproc
rpmsg rpmsg: fix dependency on initialization order 2012-07-17 13:10:38 +03:00
rtc arm-soc: device tree description updates 2012-07-23 16:17:43 -07:00
s390 KVM updates for the 3.6 merge window 2012-07-24 12:01:20 -07:00
sbus
scsi Merge branch 'master' [vanilla Linus master] into libata-dev.git/upstream 2012-07-25 15:58:48 -04:00
sfi
sh Merge branch 'common/pinctrl' into sh-latest 2012-07-20 16:42:59 +09:00
sn
spi spi: Updates for 3.6 2012-07-26 12:57:41 -07:00
ssb
staging Staging tree patches for 3.6-rc1 2012-07-26 11:14:49 -07:00
target iscsi-target: Drop bogus struct file usage for iSCSI/SCTP 2012-07-21 02:44:13 -07:00
tc
thermal
tty Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2012-07-24 17:12:54 -07:00
uio
usb USB patches for 3.6-rc1 2012-07-26 10:23:47 -07:00
uwb
vhost vhost: make vhost work queue visible 2012-07-22 01:22:23 +03:00
video Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-07-24 13:34:56 -07:00
virt
virtio [SCSI] virtio-scsi: Add vdrv->scan for post VIRTIO_CONFIG_S_DRIVER_OK LUN scanning 2012-07-20 08:59:03 +01:00
vlynq
vme VME: Prevent D16 cycles being split into 8-bit blocks 2012-07-19 15:39:39 -07:00
w1 Driver core merge for 3.6-rc1 2012-07-26 11:25:33 -07:00
watchdog Merge git://www.linux-watchdog.org/linux-watchdog 2012-07-24 13:26:08 -07:00
xen xen/m2p: do not reuse kmap_op->dev_bus_addr 2012-09-12 11:21:40 -04:00
zorro
Kconfig
Makefile