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2015-10-14s390/cio: reactivate cmf after hibernateSebastian Ott
During resume from hibernate we already reenable measurement block updates on a per device basis. In addition to that we also need to activate channel measurement globally using the set channel monitor instruction. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-10-14s390/cio: use kmem_cache for extended measurement block allocationSebastian Ott
Extended measurement blocks need to be 64 byte aligned. To achieve that 128 bytes for each measurement block are allocated and an align callback returns a 64 byte aligned address inside this area. Replace this code with kmem_cache allocations. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-10-14s390/cio: fix memleak in channel measurementSebastian Ott
The measurement block for the extended measurement data is not freed when switching off per device measurement. Free the measurement block after HW stopped accessing it. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-10-14s390/cio: improve locking during cmbe allocationSebastian Ott
During allocation of extended measurement blocks we check if the device is already active for channel measurement and add the device to a list of devices with active channel measurement. The check is done under ccwlock protection and the list modification is guarded by a different lock. To guarantee that both states are in sync make sure that both locks are held during the allocation process (like it's already done for the "normal" measurement block allocation). Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-10-14s390/cio: fix use after free in cmb processingSebastian Ott
Devices with active channel measurement are included in a list. When a device is removed without deactivating channel measurement first the list_head is freed but still used. Fix this by making sure that channel measurement is deactivated during device deregistration. For devices that we deregister because they are no longer accessible deactivating channel measurement will fail. In this case we can report success because the FW will no longer access the measurement block. In addition to these steps keep an extra device reference while channel measurement is active. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-10-14s390/cio: use device_lock during cmb activationSebastian Ott
Hold the device_lock during [de]activation of the channel measurement block to synchronize concurrent usage of these functions. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-10-14s390/cio: cleanup cmb_enable sysfs attrSebastian Ott
Ensure that we hold the ccwlock when accessing private data. Return errors that occur during measurement enabling to userspace. Apply some cleanups while at it. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-10-14s390/crash_dump: use for_each_mem_rangeAlexander Kuleshov
The <linux/memblock.h> already provides for_each_mem_range() macro that iterates through memblock areas from type_a and not included in type_b. We can remove custom for_each_dump_mem_range() macro and use the for_each_mem_range() instead. Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2015-10-14s390/barrier: avoid serialization in [smp_]rmb and [smp_]wmbChristian Borntraeger
The principles of operation says: The storage-operand fetch references of one instruction occur after those of all preceding instructions and before those of subsequent instructions, as observed by other CPUs and by channel programs. [...] The CPU may fetch the operands of instructions before the instructions are executed. [...] The CPU may delay placing results in storage. [...] the results of one instruction are placed in storage after the results of all preceding instructions have been placed in storage and before any results of the succeeding instructions are stored, as observed by other CPUs and by the channel subsystem. which boils down to: - reads are in order - writes are in order - reads can happen earlier - writes can happen later By definition (see memory-barrier.txt) read barriers orders reads vs reads and write barriers orders writes agains writes. but neither of these orders reads vs. writes. That means we can implement smp_wmb,smp_rmb,wmb and rmb as simple compiler barriers. To avoid reviewing all driver code for correct barrier usage we keep dma_[rw]mb as serialization for now. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-10-14s390/vdso: use correct memory barrierChristian Borntraeger
By definition smp_wmb only orders writes against writes. (Finish all previous writes, and do not start any future write). To protect the vdso init code against early reads on other CPUs, let's use a full smp_mb at the end of vdso init. As right now smp_wmb is implemented as full serialization, this needs no stable backport, but this change will be necessary if we reimplement smp_wmb. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-10-14s390/spinlock: use correct barriersChristian Borntraeger
_raw_write_lock_wait first sets the high order bit to indicate a pending writer and then waits for the reader to drop to zero. smp_rmb by definition only orders reads against reads. Let's use a full smp_mb instead. As right now smp_rmb is implemented as full serialization, this needs no stable backport, but this patch will be necessary if we reimplement smp_rmb. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-10-14s390/dasd: mark DASD devices as non rotationalChristian Borntraeger
We were able to reduce the CPU overhead of big paging scenarios when announcing our paging disks as non-rotational. Almost all dasd devices are implemented in storage servers with cache, raid, striping and lots of magic. There is no point in optimizing the disk schedulers and swap code for a single platter moving arm rotational disks. Given the complexity of the setup and the fact that this change is mostly to disable the additional overhead in swap code, lets keep the other functionality unchanged and do not disable the this device as entropy source - unlike other non-rotational devices. Suggested-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-10-14s390/zcrypt: enable odd RSA modulus sizes in CRT formatIngo Tuchscherer
In the past only even modulus sizes were allowed for RSA keys in CRT format. This restriction was based on limited RSA key generation on older crypto adapters that provides only even modulus sizes. This restriction is not valid any more. Revoke restrictions that crypto requests can be serviced with odd RSA modulus length in CRT format. Signed-off-by: Ingo Tuchscherer <ingo.tuchscherer@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-10-14s390/numa: write kernel message when emu_size has been increasedMichael Holzheu
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-10-13Merge tag 'nfsd-4.3-2' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
Pull nfsd fixes from Bruce Fields: "Two nfsd fixes, one for an RDMA crash, one for a pnfs/block protocol bug" * tag 'nfsd-4.3-2' of git://linux-nfs.org/~bfields/linux: svcrdma: Fix NFS server crash triggered by 1MB NFS WRITE nfsd/blocklayout: accept any minlength
2015-10-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
Pull crypto fixes from Herbert Xu: "This fixes the following issues: - Fix AVX detection to prevent use of non-existent AESNI. - Some SPARC ciphers did not set their IV size which may lead to memory corruption" * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: ahash - ensure statesize is non-zero crypto: camellia_aesni_avx - Fix CPU feature checks crypto: sparc - initialize blkcipher.ivsize
2015-10-13Merge tag 'iommu-fixes-v4.3-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull IOMMU fixes from Joerg Roedel: "A few fixes piled up: - Fix for a suspend/resume issue where PCI probing code overwrote dev->irq for the MSI irq of the AMD IOMMU. - Fix for a kernel crash when a 32 bit PCI device was assigned to a KVM guest. - Fix for a possible memory leak in the VT-d driver - A couple of fixes for the ARM-SMMU driver" * tag 'iommu-fixes-v4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/amd: Fix NULL pointer deref on device detach iommu/amd: Prevent binding other PCI drivers to IOMMU PCI devices iommu/vt-d: Fix memory leak in dmar_insert_one_dev_info() iommu/arm-smmu: Use correct address mask for CMD_TLBI_S2_IPA iommu/arm-smmu: Ensure IAS is set correctly for AArch32-capable SMMUs iommu/io-pgtable-arm: Don't use dma_to_phys()
2015-10-13Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm fixes from Dave Airlie: "I got a bit behind last week, so here is a delayed fixes pull: - a bunch of radeon/amd gpu fixes - some nouveau regression fixes (ppc bios reading and runtime pm fix) - one drm core oops fix - two qxl locking fixes - one qxl regression fix" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/nouveau/bios: fix OF loading drm/nouveau/fbcon: take runpm reference when userspace has an open fd drm/nouveau/nouveau: Disable AGP for SiS 761 drm/nouveau/display: allow up to 16k width/height for fermi+ drm/nouveau/bios: translate devinit pri/sec i2c bus to internal identifiers drm: Fix locking for sysfs dpms file drm/amdgpu: fix memory leak in amdgpu_vm_update_page_directory drm/amdgpu: fix 32-bit compiler warning drm/qxl: avoid dependency lock drm/qxl: avoid buffer reservation in qxl_crtc_page_flip drm/qxl: fix framebuffer dirty rectangle tracking. drm/amdgpu: flag iceland as experimental drm/amdgpu: check before checking pci bridge registers drm/amdgpu: fix num_crtc on CZ drm/amdgpu: restore the fbdev mode in lastclose drm/radeon: restore the fbdev mode in lastclose drm/radeon: add quirk for ASUS R7 370 drm/amdgpu: add pm sysfs files late drm/radeon: add pm sysfs files late
2015-10-13crypto: ahash - ensure statesize is non-zeroRussell King
Unlike shash algorithms, ahash drivers must implement export and import as their descriptors may contain hardware state and cannot be exported as is. Unfortunately some ahash drivers did not provide them and end up causing crashes with algif_hash. This patch adds a check to prevent these drivers from registering ahash algorithms until they are fixed. Cc: stable@vger.kernel.org Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-10-12svcrdma: Fix NFS server crash triggered by 1MB NFS WRITEChuck Lever
Now that the NFS server advertises a maximum payload size of 1MB for RPC/RDMA again, it crashes in svc_process_common() when NFS client sends a 1MB NFS WRITE on an NFS/RDMA mount. The server has set up a 259 element array of struct page pointers in rq_pages[] for each incoming request. The last element of the array is NULL. When an incoming request has been completely received, rdma_read_complete() attempts to set the starting page of the incoming page vector: rqstp->rq_arg.pages = &rqstp->rq_pages[head->hdr_count]; and the page to use for the reply: rqstp->rq_respages = &rqstp->rq_arg.pages[page_no]; But the value of page_no has already accounted for head->hdr_count. Thus rq_respages now points past the end of the incoming pages. For NFS WRITE operations smaller than the maximum, this is harmless. But when the NFS WRITE operation is as large as the server's max payload size, rq_respages now points at the last entry in rq_pages, which is NULL. Fixes: cc9a903d915c ('svcrdma: Change maximum server payload . . .') BugLink: https://bugzilla.linux-nfs.org/show_bug.cgi?id=270 Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Sagi Grimberg <sagig@dev.mellanox.co.il> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Reviewed-by: Shirley Ma <shirley.ma@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-10-12Merge branch 'linux-4.3' of ↵Dave Airlie
git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes Nothing too crazy here, a couple of regression fixes + runpm/fbcon race fix. * 'linux-4.3' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: drm/nouveau/bios: fix OF loading drm/nouveau/fbcon: take runpm reference when userspace has an open fd drm/nouveau/nouveau: Disable AGP for SiS 761 drm/nouveau/display: allow up to 16k width/height for fermi+ drm/nouveau/bios: translate devinit pri/sec i2c bus to internal identifiers
2015-10-12drm/nouveau/bios: fix OF loadingIlia Mirkin
Currently OF bios load fails for a few reasons: - checksum failure - bios size too small - no PCIR header - bios length not a multiple of 4 In this change, we resolve all of the above by ignoring any checksum failures (since OF VBIOS tends not to have a checksum), and faking the PCIR data when loading from OF. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-10-12drm/nouveau/fbcon: take runpm reference when userspace has an open fdBen Skeggs
We need to do this in order to prevent accesses to the device while it's powered down. Userspace may have an mmap of the fb, and there's no good way (that I know of) to prevent it from touching the device otherwise. This fixes some nasty races between runpm and plymouth on some systems, which result in the GPU getting very upset and hanging the boot. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Cc: stable@vger.kernel.org
2015-10-12drm/nouveau/nouveau: Disable AGP for SiS 761Ondrej Zary
SiS 761 chipset does not support AGP cards but has AGP capability (for the onboard video). At least PC Chips A31G board using this chipset has an AGP-like AGPro slot that's wired to the PCI bus. Enabling AGP will fail (GPU lockup and software fbcon, X11 hangs). Add support for matching just the host bridge in nvkm_device_agp_quirks and add entry for SiS 761 with mode 0 (AGP disabled). Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-10-12drm/nouveau/display: allow up to 16k width/height for fermi+Ilia Mirkin
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-10-12drm/nouveau/bios: translate devinit pri/sec i2c bus to internal identifiersBen Skeggs
fdo#92013. Regression from "i2c: transition pad/ports away from being based on nvkm_object" Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-10-11Linux 4.3-rc5Linus Torvalds
2015-10-11Merge branch 'sched-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fix from Thomas Gleixner: "Fix a long standing state race in finish_task_switch()" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/core: Fix TASK_DEAD race in finish_task_switch()
2015-10-11Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fix from Thomas Glexiner: "Fix build breakage on powerpc in perf tools" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf tools: Fix build break on powerpc due to sample_reg_masks
2015-10-11Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull maintainer email update from Thomas Gleixner: "Change Matt Fleming's email address in the maintainers file" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: MAINTAINERS: Change Matt Fleming's email address
2015-10-11Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Thomas Gleixner: "Three trivial commits: - Fix a kerneldoc regression - Export handle_bad_irq to unbreak a driver in next - Add an accessor for the of_node field so refactoring in next does not depend on merge ordering" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqdomain: Add an accessor for the of_node field genirq: Fix handle_bad_irq kerneldoc comment genirq: Export handle_bad_irq
2015-10-11Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "This is a set of three bug fixes, two of which are regressions from recent updates (the 3ware one from 4.1 and the device handler fixes from 4.2)" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: 3w-9xxx: don't unmap bounce buffered commands scsi_dh: Use the correct module name when loading device handler libiscsi: Fix iscsi_check_transport_timeouts possible infinite loop
2015-10-11Merge tag 'md/4.3-rc4-fix' of git://neil.brown.name/mdLinus Torvalds
Pull md bugfix from Neil Brown: "One bug fix for raid1/raid10. Very careless bug earler in 4.3-rc, now fixed :-)" * tag 'md/4.3-rc4-fix' of git://neil.brown.name/md: crash in md-raid1 and md-raid10 due to incorrect list manipulation
2015-10-11MAINTAINERS: Change Matt Fleming's email addressMatt Fleming
My Intel email address will soon expire. Replace it with my personal address so people still know where to send patches. Signed-off-by: Matt Fleming <matt.fleming@intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1444494136-10333-1-git-send-email-matt@codeblueprint.co.uk Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-10-10Merge tag 'usb-4.3-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are some small USB and PHY fixes and quirk updates for 4.3-rc5. Nothing major here, full details in the shortlog, and all of these have been in linux-next for a while" * tag 'usb-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: Add device quirk for Logitech PTZ cameras USB: chaoskey read offset bug USB: Add reset-resume quirk for two Plantronics usb headphones. usb: renesas_usbhs: Add support for R-Car H3 usb: renesas_usbhs: fix build warning if 64-bit architecture usb: gadget: bdc: fix memory leak phy: berlin-sata: Fix module autoload for OF platform driver phy: rockchip-usb: power down phy when rockchip phy probe phy: qcom-ufs: fix build error when the component is built as a module
2015-10-10Merge tag 'tty-4.3-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver fixes from Greg KH: "Here are a few bug fixes for the tty core that resolve reported issues, and some serial driver fixes as well (including the much-reported imx driver problem) All of these have been in linux-next with no reported problems" * tag 'tty-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: drivers/tty: require read access for controlling terminal serial: 8250: add uart_config entry for PORT_RT2880 tty: fix data race on tty_buffer.commit tty: fix data race in tty_buffer_flush tty: fix data race in flush_to_ldisc tty: fix stall caused by missing memory barrier in drivers/tty/n_tty.c serial: atmel: fix error path of probe function tty: don't leak cdev in tty_cdev_add() Revert "serial: imx: remove unbalanced clk_prepare"
2015-10-10Merge tag 'staging-4.3-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging fixes from Greg KH: "Here are two tiny staging tree fixes for 4.3-rc5. One fixes the broken speakup subsystem as reported by a user, and the other removes an entry in the MAINTAINERS file for a developer that doesn't want to be listed anymore" * tag 'staging-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: speakup: fix speakup-r regression MAINTAINERS: Remove myself as nvec co-maintainer
2015-10-10Merge tag 'char-misc-4.3-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "Here are some small fixes for some misc drivers that resolve some reported issues. All of these have been linux-next for a while" * tag 'char-misc-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: mcb: Fix error handling in mcb_pci_probe() mei: hbm: fix error in state check logic nvmem: sunxi: Check for memory allocation failure nvmem: core: Fix memory leak in nvmem_cell_write nvmem: core: Handle shift bits in-place if cell->nbits is non-zero nvmem: core: fix the out-of-range leak in read/write()
2015-10-10Merge git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds
Pull MIPS fixes from Ralf Baechle: - MIPS didn't define the new ioremap_uc. Defined it as an alias for ioremap_uncached. - Replace workaround for MIPS16 build issue with a correct one. * git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: Define ioremap_uc MIPS: UAPI: Ignore __arch_swab{16,32,64} when using MIPS16 Revert "MIPS: UAPI: Fix unrecognized opcode WSBH/DSBH/DSHD when using MIPS16."
2015-10-10Merge branch 'stable/for-linus-4.3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb Pull swiotlb fixlet from Konrad Rzeszutek Wilk: "Enable the SWIOTLB under 32-bit PAE kernels. Nowadays most distros enable this due to CONFIG_HYPERVISOR|XEN=y which select SWIOTLB. But for those that are not interested in virtualization and wanting to use 32-bit PAE kernels and wanting to have working DMA operations - this configures it for them" * 'stable/for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb: swiotlb: Enable it under x86 PAE
2015-10-10namei: results of d_is_negative() should be checked after dentry revalidationTrond Myklebust
Leandro Awa writes: "After switching to version 4.1.6, our parallelized and distributed workflows now fail consistently with errors of the form: T34: ./regex.c:39:22: error: config.h: No such file or directory From our 'git bisect' testing, the following commit appears to be the possible cause of the behavior we've been seeing: commit 766c4cbfacd8" Al Viro says: "What happens is that 766c4cbfacd8 got the things subtly wrong. We used to treat d_is_negative() after lookup_fast() as "fall with ENOENT". That was wrong - checking ->d_flags outside of ->d_seq protection is unreliable and failing with hard error on what should've fallen back to non-RCU pathname resolution is a bug. Unfortunately, we'd pulled the test too far up and ran afoul of another kind of staleness. The dentry might have been absolutely stable from the RCU point of view (and we might be on UP, etc), but stale from the remote fs point of view. If ->d_revalidate() returns "it's actually stale", dentry gets thrown away and the original code wouldn't even have looked at its ->d_flags. What we need is to check ->d_flags where 766c4cbfacd8 does (prior to ->d_seq validation) but only use the result in cases where we do not discard this dentry outright" Reported-by: Leandro Awa <lawa@nvidia.com> Link: https://bugzilla.kernel.org/show_bug.cgi?id=104911 Fixes: 766c4cbfacd8 ("namei: d_is_negative() should be checked...") Tested-by: Leandro Awa <lawa@nvidia.com> Cc: stable@vger.kernel.org # v4.1+ Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-10-10Merge tag 'pm+acpi-4.3-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management and ACPI fixes from Rafael Wysocki: "These are four fixes for bugs in the devfreq and cpufreq subsystems, including two regression fixes (one for a recent regression and one for a problem introduced in 4.2). Specifics: - Two fixes for cpufreq regressions, an acpi-cpufreq driver one introduced during the 4.2 cycle when we started to preserve cpufreq directories for offline CPUs and a general one introduced recently (Srinivas Pandruvada). - Two devfreq fixes, one for a double kfree() in an error code path and one for a confusing sysfs-related failure (Geliang Tang, Tobias Jakobi)" * tag 'pm+acpi-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: cpufreq: prevent lockup on reading scaling_available_frequencies cpufreq: acpi_cpufreq: prevent crash on reading freqdomain_cpus PM / devfreq: fix double kfree PM / devfreq: Fix governor_store()
2015-10-10Merge branch 'strscpy' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile Pull strscpy powerpc fix from Chris Metcalf. Fix powerpc big-endian build. * 'strscpy' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: arch/powerpc: provide zero_bytemask() for big-endian
2015-10-10Merge tag 'sound-4.3-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "We see various small fixes, but nothing looks too scary, all are small gentle bug fixes: - Most of changes are for ASoC codecs: Realtek, SGTL5000, TAS2552, TLV320, WM8962 - A couple of dwc and imx-ssi fixes - Usual oneliner HD-audio quirks - An old emux synth code fix" * tag 'sound-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: MAINTAINERS: Remove wm97xx entry ASoC: tas2552: fix dBscale-min declaration ALSA: synth: Fix conflicting OSS device registration on AWE32 ALSA: hda - Disable power_save_node for IDT 92HD73xx chips ALSA: hda - Apply SPDIF pin ctl to MacBookPro 12,1 ALSA: hda: Add dock support for ThinkPad T550 ASoC: dwc: fix dma stop transferring issue ASoC: dwc: correct irq clear method ASoC: tlv320aic3x: Prevent writing reserved registers on tlv320aic3104 CODECs ASoC: rt5645: Correct the naming and setting of ADC Boost Volume Control ASoC: sgtl5000: fix wrong register MIC_BIAS_VOLTAGE setup on probe ASoC: wm8962: balance pm_runtime_enable ASoC: imx-ssi: Fix DAI hardware signal inversions ASoC: sgtl5000: fix error message output for MicBias voltage ASoC: db1200: Fix DAI link format for db1300 and db1550
2015-10-10Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk fixes from Stephen Boyd: "A Samsung driver fix and a handful of TI driver fixes" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: ti: dflt: fix enable_reg validity check clk: ti: fix dual-registration of uart4_ick clk: ti: clk-7xx: Remove hardwired ABE clock configuration clk: samsung: fix cpu clock's flags checking
2015-10-10Merge tag 'mmc-v4.3-rc4' of git://git.linaro.org/people/ulf.hansson/mmcLinus Torvalds
Pull MMC fixes from Ulf Hansson: "MMC host: - omap_hsmmc: Fix boot regressions for omap4430 - omap_hsmmc: Fix legacy boot regression for omap3 - sdhci-pxav3: Fix some clock issues for Armada 38x - sdhci-pxav3: Fix error handling at probe - sdhci-of-at91: Fix clock stabilization problem" * tag 'mmc-v4.3-rc4' of git://git.linaro.org/people/ulf.hansson/mmc: mmc: sdhci-of-at91: use SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST quirk mmc: sdhci: add quirk SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST mmc: sdhci-pxav3: fix error handling of armada_38x_quirks mmc: sdhci-pxav3: disable clock inversion for HS MMC cards mmc: sdhci-pxav3: remove broken clock base quirk for Armada 38x sdhci driver mmc: host: omap_hsmmc: Fix MMC for omap3 legacy booting Revert "mmc: host: omap_hsmmc: use regulator_is_enabled to find pbias status"
2015-10-09Merge tag 'dm-4.3-fixes-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull dm fixes from Mike Snitzer: "Three stable fixes: - DM core AB-BA deadlock fix in the device destruction path (vs device creation's DM table swap). - DM raid fix to properly round up the region_size to the next power-of-2. - DM cache fix for a NULL pointer seen while switching from the "cleaner" cache policy. Two fixes for regressions introduced during the 4.3 merge: - request-based DM error propagation regressed due to incorrect changes introduced when adding the bi_error field to bio. - DM snapshot fix to only support snapshots that overflow if the client (e.g. lvm2) is prepared to deal with the associated snapshot status interface change" * tag 'dm-4.3-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm snapshot: add new persistent store option to support overflow dm cache: fix NULL pointer when switching from cleaner policy dm: fix request-based dm error reporting dm raid: fix round up of default region size dm: fix AB-BA deadlock in __dm_destroy()
2015-10-09Merge branch 'for-linus-4.3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs Pull btrfs fixes from Chris Mason: "These are small and assorted. Neil's is the oldest, I dropped the ball thinking he was going to send it in" * 'for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: support NFSv2 export Btrfs: open_ctree: Fix possible memory leak Btrfs: fix deadlock when finalizing block group creation Btrfs: update fix for read corruption of compressed and shared extents Btrfs: send, fix corner case for reference overwrite detection
2015-10-09Merge tag 'nfsd-4.3-1' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
Pull nfsd bugfix from Bruce Fields: "Just one RDMA bugfix" * tag 'nfsd-4.3-1' of git://linux-nfs.org/~bfields/linux: svcrdma: handle rdma read with a non-zero initial page offset
2015-10-09Merge tag 'fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Arnd Bergmann: "The fixes for this week include one small patch that was years in the making and that finally fixes using all eight CPUs on exynos542x. The rest are lots of minor changes for sunxi, imx, exynos and shmobile - fixing the minimum voltage for Allwinner A20 - thermal boot issue on SMDK5250. - invalid clock used for FIMD IOMMU. - audio on Renesas r8a7790/r8a7791 - invalid clock used for FIMD IOMMU - LEDs on exynos5422-odroidxu3-common - usb pin control for imx-rex - imx53: fix PMIC interrupt level - a Makefile typo" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: dts: Fix wrong clock binding for sysmmu_fimd1_1 on exynos5420 ARM: dts: Fix bootup thermal issue on smdk5250 ARM: shmobile: r8a7791 dtsi: Add CPG/MSTP Clock Domain for sound ARM: shmobile: r8a7790 dtsi: Add CPG/MSTP Clock Domain for sound arm-cci500: Don't enable PMU driver by default ARM: dts: fix usb pin control for imx-rex dts ARM: imx53: qsrb: fix PMIC interrupt level ARM: imx53: include IRQ dt-bindings header ARM: dts: add suspend opp to exynos4412 ARM: dts: Fix LEDs on exynos5422-odroidxu3 ARM: EXYNOS: reset Little cores when cpu is up ARM: dts: Fix Makefile target for sun4i-a10-itead-iteaduino-plus ARM: dts: sunxi: Raise minimum CPU voltage for sun7i-a20 to meet SoC specifications