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449efd1d33
linux/drivers
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Stefano Stabellini 449efd1d33 xen/m2p: do not reuse kmap_op->dev_bus_addr 
commit 2fc136eecd upstream.

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).

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-02 10:30:06 -07:00
..
accessibility
acpi ACPI / PM: Use KERN_DEBUG when no power resources are found 2012-10-02 10:29:54 -07:00
amba ARM: 7366/3: amba: Remove AMBA level regulator support 2012-04-13 14:04:08 +01:00
ata ahci: Add alternate identifier for the 88SE9172 2012-10-02 10:29:55 -07:00
atm solos-pci: Fix DMA support 2012-06-10 00:36:08 +09:00
auxdisplay
base PM / Sleep: call early resume handlers when suspend_noirq fails 2012-08-09 08:31:30 -07:00
bcma bcma: add ext PA workaround for BCM4331 and BCM43431 2012-06-17 11:21:26 -07:00
block xen/m2p: do not reuse kmap_op->dev_bus_addr 2012-10-02 10:30:06 -07:00
bluetooth Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth 2012-04-27 15:16:43 -04:00
cdrom
char random: mix in architectural randomness in extract_buf() 2012-08-15 08:10:30 -07:00
clk clk: Check parent for NULL in clk_change_rate 2012-07-19 08:58:59 -07:00
clocksource Revert "clocksource: Load the ACPI PM clocksource asynchronously" 2012-04-12 00:05:05 +02:00
connector
cpufreq cpufreq/powernow-k8: workqueue user shouldn't migrate the kworker to another CPU 2012-10-02 10:29:50 -07:00
cpuidle Merge branches 'idle-fix' and 'misc' into release 2012-04-06 21:48:59 -04:00
crypto crypto: mv_cesa requires on CRYPTO_HASH to build 2012-05-15 01:10:06 +00:00
dca
devfreq ARM: global cleanups 2012-03-27 16:03:32 -07:00
dio
dma Revert dma: imx-dma: Fix kernel crash due to missing clock conversion 2012-09-14 10:00:04 -07:00
edac edac: fix the error about memory type detection on SandyBridge 2012-06-22 11:37:15 -07:00
eisa
firewire Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
firmware dmi: Feed DMI table to /dev/random driver 2012-08-15 08:10:30 -07:00
gpio gpiolib: wm8994: Pay attention to the value set when enabling as output 2012-07-16 09:04:09 -07:00
gpu drm/vmwgfx: add MODULE_DEVICE_TABLE so vmwgfx loads at boot 2012-09-14 10:00:33 -07:00
hid HID: add NOGET quirk for Eaton Ellipse MAX UPS 2012-09-14 10:00:33 -07:00
hsi HSI: hsi_char: Remove max_data_size from sysfs 2012-04-23 14:23:32 +03:00
hv
hwmon hwmon: (twl4030-madc-hwmon) Initialize uninitialized structure elements 2012-10-02 10:30:05 -07:00
hwspinlock hwspinlock/core: use global ID to register hwspinlocks on multiple devices 2012-07-16 09:04:25 -07:00
i2c i2c-i801: Add Device IDs for Intel Lynx Point-LP PCH 2012-09-14 10:00:33 -07:00
ide Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
idle simple_open: automatically convert to simple_open() 2012-04-05 15:25:50 -07:00
ieee802154
infiniband IB/srp: Fix a race condition 2012-08-26 15:00:44 -07:00
input Input: i8042 - add Gigabyte T1005 series netbooks to noloop table 2012-09-14 10:00:33 -07:00
iommu iommu/amd: Fix hotplug with iommu=pt 2012-08-09 08:31:32 -07:00
isdn isdnloop: fix and simplify isdnloop_init() 2012-10-02 10:29:35 -07:00
leds drivers/leds: correct __devexit annotations 2012-05-10 15:06:44 -07:00
lguest
macintosh Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
mca
md md/raid5: fix calculate of 'degraded' when a replacement becomes active. 2012-10-02 10:29:55 -07:00
media USB: smsusb: remove __devinit* from the struct usb_device_id table 2012-09-14 10:00:21 -07:00
memstick
message Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
mfd ARM: pxa: remove irq_to_gpio from ezx-pcap driver 2012-08-15 08:10:32 -07:00
misc Merge branch 'akpm' (Andrew's patch-bomb) 2012-04-05 15:30:34 -07:00
mmc mmc: card: Skip secure erase on MoviNAND; causes unrecoverable corruption. 2012-10-02 10:29:54 -07:00
mtd mtd: nandsim: don't open code a do_div helper 2012-07-19 08:58:55 -07:00
net can: mcp251x: avoid repeated frame bug 2012-10-02 10:30:05 -07:00
nfc
nubus Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
of gpio: Fix range check in of_gpio_simple_xlate() 2012-04-10 14:20:56 -06:00
oprofile oprofile: perf: use NR_CPUS instead or nr_cpumask_bits for static array 2012-07-16 09:04:21 -07:00
parisc parisc: move definition of PAGE0 to asm/page.h 2012-05-10 15:12:08 -07:00
parport
pci PCI: EHCI: Fix crash during hibernation on ASUS computers 2012-09-14 10:00:20 -07:00
pcmcia Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia 2012-03-29 16:00:48 -07:00
pinctrl pinctrl: implement pinctrl_check_ops 2012-04-11 09:31:02 +02:00
platform asus-wmi: use ASUS_WMI_METHODID_DSTS2 as default DSTS ID. 2012-08-15 08:10:04 -07:00
pnp Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 2012-03-30 16:45:39 -07:00
power Various small bugfixes and enhancements, plus two new drivers: 2012-03-30 16:09:02 -07:00
pps
ps3
ptp ptp_pch: Add missing #include <linux/slab.h> 2012-05-16 14:44:44 -04:00
rapidio rapidio/tsi721: fix unused variable compiler warning 2012-09-14 10:00:20 -07:00
regulator regulator: twl-regulator: fix up VINTANA1/VINTANA2 2012-09-14 10:00:21 -07:00
remoteproc remoteproc: fix missing CONFIG_FW_LOADER configurations 2012-07-16 09:04:25 -07:00
rpmsg rpmsg: fix dependency on initialization order 2012-07-19 08:58:57 -07:00
rtc drivers/rtc/rtc-twl.c: ensure all interrupts are disabled during probe 2012-10-02 10:30:05 -07:00
s390 qeth: repair crash in qeth_l3_vlan_rx_kill_vid() 2012-08-09 08:31:38 -07:00
sbus Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
scsi SCSI: Fix 'Device not ready' issue on mpt2sas 2012-09-14 10:00:32 -07:00
sfi
sh SuperH updates for 3.4 merge window 2012-03-30 00:09:17 -07:00
sn
spi spi/pl022: disable port when unused 2012-08-09 08:31:38 -07:00
ssb
staging staging: comedi: das08: Correct AO output for das08jr-16-ao 2012-10-02 10:29:53 -07:00
target target: Fix ->data_length re-assignment bug with SCSI overflow 2012-10-02 10:29:51 -07:00
tc
thermal
tty pmac_zilog,kdb: Fix console poll hook to return instead of loop 2012-08-26 15:00:43 -07:00
uio
usb USB: option: replace ZTE K5006-Z entry with vendor class rule 2012-10-02 10:29:53 -07:00
uwb uwb: fix error handling 2012-04-18 13:15:51 -07:00
vhost vhost-net: fix handle_rx buffer size 2012-05-11 18:16:57 -04:00
video video/smscufx: fix line counting in fb_write 2012-08-15 08:10:08 -07:00
virt
virtio virtio: balloon: let host know of updated balloon size before module removal 2012-05-17 12:14:34 +03:00
vlynq
w1
watchdog hpwdt: Only BYTE reads/writes to WD Timer port 0x72 2012-04-26 14:38:07 +02:00
xen xen/m2p: do not reuse kmap_op->dev_bus_addr 2012-10-02 10:30:06 -07:00
zorro
Kconfig Merge branch 'for-next' of git://gitorious.org/kernel-hsi/kernel-hsi 2012-04-02 09:50:40 -07:00
Makefile Merge branch 'for-next' of git://gitorious.org/kernel-hsi/kernel-hsi 2012-04-02 09:50:40 -07:00