linux, branch v3.4.3

Linux 3.4.3

2012-06-17T18:21:44Z

ata_piix: defer disks to the Hyper-V drivers by default

2012-06-17T18:21:29Z

commit cd006086fa5d91414d8ff9ff2b78fbb593878e3c upstream. When we are hosted on a Microsoft Hyper-V hypervisor the guest disks are exposed both via the Hyper-V paravirtualised drivers and via an emulated SATA disk drive. In this case we want to use the paravirtualised drivers if we can as they are much more efficient. Note that the Hyper-V paravirtualised drivers only expose the virtual hard disk devices, the CDROM/DVD devices must still be enumerated. Mark the host controller ATA_HOST_IGNORE_ATA to prevent enumeration of disk devices. BugLink: http://bugs.launchpad.net/bugs/929545 BugLink: http://bugs.launchpad.net/bugs/942316 Signed-off-by: Andy Whitcroft Signed-off-by: Jeff Garzik Cc: Victor Miasnikov Signed-off-by: Greg Kroah-Hartman

libata: add a host flag to ignore detected ATA devices

2012-06-17T18:21:29Z

commit db63a4c8115a0bb904496e1cdd3e7488e68b0d06 upstream. Where devices are visible via more than one host we sometimes wish to indicate that cirtain devices should be ignored on a specific host. Add a host flag indicating that this host wishes to ignore ATA specific devices. Signed-off-by: Andy Whitcroft Signed-off-by: Jeff Garzik Cc: Victor Miasnikov Signed-off-by: Greg Kroah-Hartman

fuse: fix stat call on 32 bit platforms

2012-06-17T18:21:29Z

commit 45c72cd73c788dd18c8113d4a404d6b4a01decf1 upstream. Now we store attr->ino at inode->i_ino, return attr->ino at the first time and then return inode->i_ino if the attribute timeout isn't expired. That's wrong on 32 bit platforms because attr->ino is 64 bit and inode->i_ino is 32 bit in this case. Fix this by saving 64 bit ino in fuse_inode structure and returning it every time we call getattr. Also squash attr->ino into inode->i_ino explicitly. Signed-off-by: Pavel Shilovsky Signed-off-by: Miklos Szeredi Signed-off-by: Greg Kroah-Hartman

drm/i915: Mark the ringbuffers as being in the GTT domain

2012-06-17T18:21:29Z

commit 3eef8918ff440837f6af791942d8dd07e1a268ee upstream. By correctly describing the rinbuffers as being in the GTT domain, it appears that we are more careful with the management of the CPU cache upon resume and so prevent some coherency issue when submitting commands to the GPU later. A secondary effect is that the debug logs are then consistent with the actual usage (i.e. they no longer describe the ringbuffers as being in the CPU write domain when we are accessing them through an wc iomapping.) Reported-and-tested-by: Daniel Gnoutcheff Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41092 Signed-off-by: Chris Wilson Signed-off-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman

drm/radeon: fix tiling and command stream checking on evergreen v3

2012-06-17T18:21:28Z

commit d26098759cf6d32148649c165f87a7590bc25b89 upstream. Fix regresson since the introduction of command stream checking on evergreen (thread referenced below). Issue is cause by ddx allocating bo with formula width*height*bpp while programming the GPU command stream with ALIGN(height, 8). In some case (where page alignment does not hide the extra size bo should be according to height alignment) the kernel will reject the command stream. This patch reprogram the command stream to slice - 1 (slice is a derivative value from height) which avoid rejecting the command stream while keeping the value of command stream checking from a security point of view. This patch also fix wrong computation of layer size for 2D tiled surface. Which should fix issue when 2D color tiling is enabled. This dump the radeon KMS_DRIVER_MINOR so userspace can know if they are on a fixed kernel or not. https://lkml.org/lkml/2012/6/3/80 https://bugs.freedesktop.org/show_bug.cgi?id=50892 https://bugs.freedesktop.org/show_bug.cgi?id=50857 !!! STABLE need a custom version of this patch for 3.4 !!! v2: actually bump the minor version and add comment about stable v3: do compute the height the ddx was trying to use [airlied: drop left over debug] Signed-off-by: Jerome Glisse Signed-off-by: Dave Airlie Signed-off-by: Greg Kroah-Hartman

sched: Fix the relax_domain_level boot parameter

2012-06-17T18:21:28Z

commit a841f8cef4bb124f0f5563314d0beaf2e1249d72 upstream. It does not get processed because sched_domain_level_max is 0 at the time that setup_relax_domain_level() is run. Simply accept the value as it is, as we don't know the value of sched_domain_level_max until sched domain construction is completed. Fix sched_relax_domain_level in cpuset. The build_sched_domain() routine calls the set_domain_attribute() routine prior to setting the sd->level, however, the set_domain_attribute() routine relies on the sd->level to decide whether idle load balancing will be off/on. Signed-off-by: Dimitri Sivanich Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/20120605184436.GA15668@sgi.com Signed-off-by: Ingo Molnar Signed-off-by: Greg Kroah-Hartman

acpi_video: fix leaking PCI references

2012-06-17T18:21:28Z

commit cfb46f433a4da97c31780e08a259fac2cb6bd61f upstream. Signed-off-by: Alan Cox Acked-by: Matthew Garrett Signed-off-by: Len Brown Signed-off-by: Greg Kroah-Hartman

gma500: don't register the ACPI video bus

2012-06-17T18:21:28Z

commit 155689defc782b486a7e6776a57ecc4ebb37ed52 upstream. We are not yet ready for this and it makes a mess on some devices. Signed-off-by: Alan Cox Signed-off-by: Len Brown Signed-off-by: Greg Kroah-Hartman

can: c_can: fix race condition in c_can_open()

2012-06-17T18:21:28Z

commit f461f27a4436dbe691908fe08b867ef888848cc3 upstream. Fix the issue of C_CAN interrupts getting disabled forever when canconfig utility is used multiple times. According to NAPI usage we disable all the hardware interrupts in ISR and re-enable them in poll(). Current implementation calls napi_enable() after hardware interrupts are enabled. If we get any interrupts between these two steps then we do not process those interrupts because napi is not enabled. Mostly these interrupts come because of STATUS is not 0x7 or ERROR interrupts. If napi_enable() happens before HW interrupts enabled then c_can_poll() function will be called eventual re-enabling. This patch moves the napi_enable() call before interrupts enabled. Signed-off-by: AnilKumar Ch Acked-by: Wolfgang Grandegger Signed-off-by: Marc Kleine-Budde Signed-off-by: Greg Kroah-Hartman