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462b60f6cc
linux/drivers/pci
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David Woodhouse 462b60f6cc intel-iommu: Fix tiny theoretical race in write-buffer flush. 
In iommu_flush_write_buffer() we read iommu->gcmd before taking the
register_lock, and then we mask in the WBF bit and write it to the
register.

There is a tiny chance that something else could have _changed_
iommu->gcmd before we take the lock, but after we read it. So we could
be undoing that change.

Never actually going to have happened in practice, since nothing else
changes that register at runtime -- aside from the write-buffer flush
it's only ever touched at startup for enabling translation, etc.

But worth fixing anyway.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-05-10 20:18:18 +01:00
..
hotplug PCI Hotplug: acpiphp: grab refcount on p2p subordinate bus 2009-04-06 11:30:26 -07:00
pcie PCIe: portdrv: call pci_disable_device during remove 2009-03-20 10:48:16 -07:00
.gitignore
access.c PCI: Fix oops in pci_vpd_truncate 2009-04-07 08:05:38 -07:00
bus.c PCI: Setup disabled bridges even if buses are added 2009-04-06 11:25:06 -07:00
dmar.c intel-iommu: Clean up handling of "caching mode" vs. IOTLB flushing. 2009-05-10 19:58:49 +01:00
hotplug-pci.c PCI: fix section mismatch warning in pci_scan_child_bus 2008-03-04 15:07:03 -08:00
hotplug.c Driver core: change add_uevent_var to use a struct 2007-10-12 14:51:01 -07:00
htirq.c genirq: remove sparse irq code 2008-10-16 16:53:15 +02:00
intel-iommu.c intel-iommu: Fix tiny theoretical race in write-buffer flush. 2009-05-10 20:18:18 +01:00
intr_remapping.c drivers/pci/intr_remapping.c: include acpi.h 2009-04-06 13:45:48 -07:00
intr_remapping.h VT-d: Changes to support KVM 2008-10-15 14:24:08 +02:00
iov.c PCI-IOV: fix missing kernel-doc 2009-04-06 11:25:33 -07:00
iova.c VT-d: Changes to support KVM 2008-10-15 14:24:08 +02:00
irq.c PCI: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-07 11:12:23 -08:00
Kconfig PCI: initialize and release SR-IOV capability 2009-03-20 10:48:22 -07:00
Makefile PCI: initialize and release SR-IOV capability 2009-03-20 10:48:22 -07:00
msi.c PCI MSI: Add support for multiple MSI 2009-03-20 10:48:14 -07:00
msi.h PCI MSI: Add support for multiple MSI 2009-03-20 10:48:14 -07:00
pci-acpi.c Merge branch 'linus' into release 2009-04-05 02:14:15 -04:00
pci-driver.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask 2009-04-05 10:33:07 -07:00
pci-stub.c PCI: pci-stub module to reserve pci device 2009-01-07 11:12:38 -08:00
pci-sysfs.c PCI: allow PCI core hotplug to remove PCI root bus 2009-04-06 11:30:02 -07:00
pci.c PCI: Setup disabled bridges even if buses are added 2009-04-06 11:25:06 -07:00
pci.h Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2009-04-01 09:47:12 -07:00
probe.c PCI: annotate pci_rescan_bus as __ref, not __devinit 2009-04-06 11:26:07 -07:00
proc.c PCI: define PCI resource names in an 'enum' 2009-01-07 11:13:01 -08:00
quirks.c PCI: don't corrupt enable_cnt when doing manual resource alignment 2009-04-06 11:27:58 -07:00
remove.c PCI: fix kernel oops on bridge removal 2009-03-26 15:55:18 -07:00
rom.c PCI: fix rom.c kernel-doc warning 2009-02-13 12:01:56 -08:00
search.c PCI: fix wrong assumption in pci_find_upstream_pcie_bridge 2009-03-20 10:48:03 -07:00
setup-bus.c PCI: Setup disabled bridges even if buses are added 2009-04-06 11:25:06 -07:00
setup-irq.c PCI: use dev_printk when possible 2008-06-25 16:05:13 -07:00
setup-res.c PCI: allow assignment of memory resources with a specified alignment 2009-03-20 10:48:15 -07:00
slot.c PCI: enhance physical slot debug information 2009-03-19 19:29:30 -07:00
syscall.c [CVE-2009-0029] System call wrappers part 26 2009-01-14 14:15:29 +01:00