mirror of https://gitee.com/openkylin/linux.git
854 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Linus Torvalds
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c22072bdf0 |
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner: "The clocksource driver is pure hardware enablement and the skew option is default off, well tested and non dangerous." * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tick: Move skew_tick option into the HIGH_RES_TIMER section clocksource: em_sti: Add DT support clocksource: em_sti: Emma Mobile STI driver clockevents: Make clockevents_config() a global symbol tick: Add tick skew boot option |
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Linus Torvalds
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2f83766d4b |
IOMMU Updates for Linux 3.5
Not much stuff this time. The only change to the IOMMU core code is the addition of a handle to the fault handling code. A few updates to the AMD IOMMU driver to work around new errata. The other patches are mostly fixes and enhancements to the existing ARM IOMMU drivers and documentation updates. A new IOMMU driver for the Exynos platform was also underway but got merged via the Samsung tree and is not part of this tree. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJPxfseAAoJECvwRC2XARrjvL4QAL39988y7ajHSI3ym3Dxovn9 w8md63xKNlTpCB8NJPRIJpcGrE7QFtNXPFCagTqO713ulwCoKayEwKGOU7VQagFc 0/JoHxE5usE5OuA6tyAJbpWK10kWKDzu6HjZfqF2yoa0q/REbsu65KsY7zc7HbpF qEAXX1xr9IC7GUM7gv75OR8CP2VJCW3+6VyhiD/37t3KpNwINMpRDO/eN/KiwoUI 1t+/DVwO6pH5UrGReWrmjs/gcxFMzkeelt+iCA32kzkWLtyWjeWBujVWnFvVtpkz R4pV2T2jvs6fWPU5MMBXZRd5AvLLqcu/g/Yr21WYHz07jCcGxlCUp9qpnGLt2el0 /YTY3LBZUQJ5sx3OSJV+oQVTtI5x0EkAiOrJ8Dx20wNAFqun9bhJb1WX0IXflmZc oC7SF5wjXq8pUQmX/wpGMbW7XYompypJGqlEsftJEytf4dfR6KJ2Vo1h3pHtpaex IaY6TqmdW44e0EgbFTM7RMNFtC7GrIY9NE+WKlrFtsHhUFrqt1NVBEcO3faU0ES6 UAguFRPM/HAdkVmY620+DUT/JkEMemWq2jgWExLGLC9gI8L1Xj2cdU8esstuMUoV GGG4u9a5W1rALwg+zPCQGoVxPKmd6fpeC3U+Rmg2639chy+h4c/cBXkzfUsxe2lg wvMDVbjDN1Fz0c29YJit =K23I -----END PGP SIGNATURE----- Merge tag 'iommu-updates-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull IOMMU updates from Joerg Roedel: "Not much stuff this time. The only change to the IOMMU core code is the addition of a handle to the fault handling code. A few updates to the AMD IOMMU driver to work around new errata. The other patches are mostly fixes and enhancements to the existing ARM IOMMU drivers and documentation updates. A new IOMMU driver for the Exynos platform was also underway but got merged via the Samsung tree and is not part of this tree." * tag 'iommu-updates-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: Documentation: kernel-parameters.txt Add amd_iommu_dump iommu/core: pass a user-provided token to fault handlers iommu/tegra: gart: Fix register offset correctly iommu: OMAP: device detach on domain destroy iommu: tegra/gart: Add device tree support iommu: tegra/gart: use correct gart_device iommu/tegra: smmu: Print device name correctly iommu/amd: Add workaround for event log erratum iommu/amd: Check for the right TLP prefix bit dma-debug: release free_entries_lock before saving stack trace |
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Shuah Khan
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c099cf1731 |
Documentation: kernel-parameters.txt Add amd_iommu_dump
Add amd_iommu_dump to kernel-parameters.txt Signed-off-by: Shuah Khan <shuahkhan@gmail.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> |
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Linus Torvalds
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d766023eea |
Merge branch 'doc' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull documentation updates from Jiri Kosina: "I am currently relaying documentation patches through 'doc' branch of trivial tree, until Rob, the new documentation maintainer, has established a proper tree." * 'doc' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: doc: ext3: update documentation with barrier=1 default Documentation/initrd.txt: Change the location of util-linux Documentation/SubmittingPatches: suggested the use of scripts/get_maintainer.pl Documentation/kernel-parameters: remove autotest and mcatest |
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Linus Torvalds
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d484864dd9 |
Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping
Pull CMA and ARM DMA-mapping updates from Marek Szyprowski: "These patches contain two major updates for DMA mapping subsystem (mainly for ARM architecture). First one is Contiguous Memory Allocator (CMA) which makes it possible for device drivers to allocate big contiguous chunks of memory after the system has booted. The main difference from the similar frameworks is the fact that CMA allows to transparently reuse the memory region reserved for the big chunk allocation as a system memory, so no memory is wasted when no big chunk is allocated. Once the alloc request is issued, the framework migrates system pages to create space for the required big chunk of physically contiguous memory. For more information one can refer to nice LWN articles: - 'A reworked contiguous memory allocator': http://lwn.net/Articles/447405/ - 'CMA and ARM': http://lwn.net/Articles/450286/ - 'A deep dive into CMA': http://lwn.net/Articles/486301/ - and the following thread with the patches and links to all previous versions: https://lkml.org/lkml/2012/4/3/204 The main client for this new framework is ARM DMA-mapping subsystem. The second part provides a complete redesign in ARM DMA-mapping subsystem. The core implementation has been changed to use common struct dma_map_ops based infrastructure with the recent updates for new dma attributes merged in v3.4-rc2. This allows to use more than one implementation of dma-mapping calls and change/select them on the struct device basis. The first client of this new infractructure is dmabounce implementation which has been completely cut out of the core, common code. The last patch of this redesign update introduces a new, experimental implementation of dma-mapping calls on top of generic IOMMU framework. This lets ARM sub-platform to transparently use IOMMU for DMA-mapping calls if one provides required IOMMU hardware. For more information please refer to the following thread: http://www.spinics.net/lists/arm-kernel/msg175729.html The last patch merges changes from both updates and provides a resolution for the conflicts which cannot be avoided when patches have been applied on the same files (mainly arch/arm/mm/dma-mapping.c)." Acked by Andrew Morton <akpm@linux-foundation.org>: "Yup, this one please. It's had much work, plenty of review and I think even Russell is happy with it." * 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping: (28 commits) ARM: dma-mapping: use PMD size for section unmap cma: fix migration mode ARM: integrate CMA with DMA-mapping subsystem X86: integrate CMA with DMA-mapping subsystem drivers: add Contiguous Memory Allocator mm: trigger page reclaim in alloc_contig_range() to stabilise watermarks mm: extract reclaim code from __alloc_pages_direct_reclaim() mm: Serialize access to min_free_kbytes mm: page_isolation: MIGRATE_CMA isolation functions added mm: mmzone: MIGRATE_CMA migration type added mm: page_alloc: change fallbacks array handling mm: page_alloc: introduce alloc_contig_range() mm: compaction: export some of the functions mm: compaction: introduce isolate_freepages_range() mm: compaction: introduce map_pages() mm: compaction: introduce isolate_migratepages_range() mm: page_alloc: remove trailing whitespace ARM: dma-mapping: add support for IOMMU mapper ARM: dma-mapping: use alloc, mmap, free from dma_ops ARM: dma-mapping: remove redundant code and do the cleanup ... Conflicts: arch/x86/include/asm/dma-mapping.h |
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Sebastian Andrzej Siewior
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9b170dbd82 |
Documentation/kernel-parameters: remove autotest and mcatest
It has no more users, the last one is gone in "[PATCH] ia64: Kconfig
cleanup" aka ("6fd79ab50b").
mcatest is gone in commit "[PATCH] ia64: SGI SN update"
("c6bacd5010ec").
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Acked-by: Rob Landley <rob@landley.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Mike Galbraith
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5307c9556b |
tick: Add tick skew boot option
Let the user decide whether power consumption or jitter is the
more important consideration for their machines.
Quoting removal commit af5ab277ded04bd9bc6b048c5a2f0e7d70ef0867:
"Historically, Linux has tried to make the regular timer tick on the
various CPUs not happen at the same time, to avoid contention on
xtime_lock.
Nowadays, with the tickless kernel, this contention no longer happens
since time keeping and updating are done differently. In addition,
this skew is actually hurting power consumption in a measurable way on
many-core systems."
Problems:
- Contrary to the above, systems do encounter contention on both
xtime_lock and RCU structure locks when the tick is synchronized.
- Moderate sized RT systems suffer intolerable jitter due to the tick
being synchronized.
- SGI reports the same for their large systems.
- Fully utilized systems reap no power saving benefit from skew removal,
but do suffer from resulting induced lock contention.
-
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Linus Torvalds
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f2fde3a65e |
Merge branch 'drm-core-next' of git://people.freedesktop.org/~airlied/linux
Pull main drm updates from Dave Airlie:
"This is the main merge window request for the drm.
It's big, but jam packed will lots of features and of course 0
regressions. (okay maybe there'll be one).
Highlights:
- new KMS drivers for server GPU chipsets: ast, mgag200 and cirrus
(qemu only). These drivers use the generic modesetting drivers.
- initial prime/dma-buf support for i915, nouveau, radeon, udl and
exynos
- switcheroo audio support: so GPUs with HDMI can turn off the sound
driver without crashing stuff.
- There are some patches drifting outside drivers/gpu into x86 and
EFI for better handling of multiple video adapters in Apple Macs,
they've got correct acks except one trivial fixup.
- Core:
edid parser has better DMT and reduced blanking support,
crtc properties,
plane properties,
- Drivers:
exynos: add 2D core accel support, prime support, hdmi features
intel: more Haswell support, initial Valleyview support, more
hdmi infoframe fixes, update MAINTAINERS for Daniel, lots of
cleanups and fixes
radeon: more HDMI audio support, improved GPU lockup recovery
support, remove nested mutexes, less memory copying on PCIE, fix
bus master enable race (kexec), improved fence handling
gma500: cleanups, 1080p support, acpi fixes
nouveau: better nva3 memory reclocking, kepler accel (needs
external firmware rip), async buffer moves on nv84+ hw.
I've some more dma-buf patches that rely on the dma-buf merge for vmap
stuff, and I've a few fixes building up, but I'd decided I'd better
get rid of the main pull sooner rather than later, so the audio guys
are also unblocked."
Fix up trivial conflict due to some duplicated changes in
drivers/gpu/drm/i915/intel_ringbuffer.c
* 'drm-core-next' of git://people.freedesktop.org/~airlied/linux: (605 commits)
drm/nouveau/nvd9: Fix GPIO initialisation sequence.
drm/nouveau: Unregister switcheroo client on exit
drm/nouveau: Check dsm on switcheroo unregister
drm/nouveau: fix a minor annoyance in an output string
drm/nouveau: turn a BUG into a WARN
drm/nv50: decode PGRAPH DATA_ERROR = 0x24
drm/nouveau/disp: fix dithering not being enabled on some eDP macbooks
drm/nvd9/copy: initialise copy engine, seems to work like nvc0
drm/nvc0/ttm: use copy engines for async buffer moves
drm/nva3/ttm: use copy engine for async buffer moves
drm/nv98/ttm: add in a (disabled) crypto engine buffer copy method
drm/nv84/ttm: use crypto engine for async buffer copies
drm/nouveau/ttm: untangle code to support accelerated buffer moves
drm/nouveau/fbcon: use fence for sync, rather than notifier
drm/nv98/crypt: non-stub implementation of the engine hooks
drm/nouveau/fifo: turn all fifo modules into engine modules
drm/nv50/graph: remove ability to do interrupt-driven context switching
drm/nv50: remove manual context unload on context destruction
drm/nv50: remove execution engine context saves on suspend
drm/nv50/fifo: use hardware channel kickoff functionality
...
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Linus Torvalds
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d5b4bb4d10 |
Merge branch 'delete-mca' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
Pull the MCA deletion branch from Paul Gortmaker: "It was good that we could support MCA machines back in the day, but realistically, nobody is using them anymore. They were mostly limited to 386-sx 16MHz CPU and some 486 class machines and never more than 64MB of RAM. Even the enthusiast hobbyist community seems to have dried up close to ten years ago, based on what you can find searching various websites dedicated to the relatively short lived hardware. So lets remove the support relating to CONFIG_MCA. There is no point carrying this forward, wasting cycles doing routine maintenance on it; wasting allyesconfig build time on validating it, wasting I/O on git grep'ping over it, and so on." Let's see if anybody screams. It generally has compiled, and James Bottomley pointed out that there was a MCA extension from NCR that allowed for up to 4GB of memory and PPro-class machines. So in *theory* there may be users out there. But even James (technically listed as a maintainer) doesn't actually have a system, and while Alan Cox claims to have a machine in his cellar that he offered to anybody who wants to take it off his hands, he didn't argue for keeping MCA support either. So we could bring it back. But somebody had better speak up and talk about how they have actually been using said MCA hardware with modern kernels for us to do that. And David already took the patch to delete all the networking driver code (commit a5e371f61ad3: "drivers/net: delete all code/drivers depending on CONFIG_MCA"). * 'delete-mca' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: MCA: delete all remaining traces of microchannel bus support. scsi: delete the MCA specific drivers and driver code serial: delete the MCA specific 8250 support. arm: remove ability to select CONFIG_MCA |
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Linus Torvalds
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468f4d1a85 |
Power management updates for 3.5
* Implementation of opportunistic suspend (autosleep) and user space interface for manipulating wakeup sources. * Hibernate updates from Bojan Smojver and Minho Ban. * Updates of the runtime PM core and generic PM domains framework related to PM QoS. * Assorted fixes. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (GNU/Linux) iQIcBAABAgAGBQJPu+jwAAoJEKhOf7ml8uNsOw0P/0w1FqXD64a1laE43JIlBe9w yHEcLHc9MXN+8lS0XQ6jFiL/VC3U5Sj7Ro+DFKcL2MWX//dfDcZcwA9ep/qh4tHV tJ987IijdWqJV14pde3xQafhp/9i12rArLxns7S5fzkdfVk0iDjhZZaZy4afFJYM SuCsDhCwWefZh89+oLikByiFPnhW+f2ZC9YQeokBM/XvZLtxmOiVfL6duloT/Cr+ 58jkrJ8xz/5kmmN4bXM4Wlpf9ZIYFXbvtbKrq3GZOXc+LpNKlWQyFgg/pIuxBewC uSgsNXXV0LFDi5JfER/8l9MMLtJwwc4VHzpLvMnRv+GtwO2/FKIIr9Fcv000IL2N 0/Ppr52M7XpRruM/k+YroUQ4F1oBX6HB4e3rwqC+XG6n5bwn/Jc7kdy7aUojqNLG Nlr5f0vBjLTSF66Jnel71Bn+gbA1ogER7E+esSTMpyX+RgGJAUVt5oX9IjbXl3PI bk8xW1csSRxBI2NkFOd9EM3vMzdGc5uu+iOoy7iBvcAK0AEfo2Ml9YuSVFQeqAu0 A96MUW155A+GKMC7I/LK8pTgMvYDedWhVW9uyXpMRjwdFC5/ywZU1aM00tL9HMpG pzHOFJgsYrf/6VCV8BwqgudRYd0K5EPSGeITCg973os/XzJIOCfJuy+Pn5V/F0ew lTbi8ipQD0Hh8A/Xt0QB =Q2vo -----END PGP SIGNATURE----- Merge tag 'pm-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: - Implementation of opportunistic suspend (autosleep) and user space interface for manipulating wakeup sources. - Hibernate updates from Bojan Smojver and Minho Ban. - Updates of the runtime PM core and generic PM domains framework related to PM QoS. - Assorted fixes. * tag 'pm-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (25 commits) epoll: Fix user space breakage related to EPOLLWAKEUP PM / Domains: Make it possible to add devices to inactive domains PM / Hibernate: Use get_gendisk to verify partition if resume_file is integer format PM / Domains: Fix computation of maximum domain off time PM / Domains: Fix link checking when add subdomain PM / Sleep: User space wakeup sources garbage collector Kconfig option PM / Sleep: Make the limit of user space wakeup sources configurable PM / Documentation: suspend-and-cpuhotplug.txt: Fix typo PM / Domains: Cache device stop and domain power off governor results, v3 PM / Domains: Make device removal more straightforward PM / Sleep: Fix a mistake in a conditional in autosleep_store() epoll: Add a flag, EPOLLWAKEUP, to prevent suspend while epoll events are ready PM / QoS: Create device constraints objects on notifier registration PM / Runtime: Remove device fields related to suspend time, v2 PM / Domains: Rework default domain power off governor function, v2 PM / Domains: Rework default device stop governor function, v2 PM / Sleep: Add user space interface for manipulating wakeup sources, v3 PM / Sleep: Add "prevent autosleep time" statistics to wakeup sources PM / Sleep: Implement opportunistic sleep, v2 PM / Sleep: Add wakeup_source_activate and wakeup_source_deactivate tracepoints ... |
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Linus Torvalds
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5d4e2d08e7 |
Driver core pull for 3.5-rc1
Here's the driver core, and other driver subsystems, pull request for
the 3.5-rc1 merge window.
Outside of a few minor driver core changes, we ended up with the
following different subsystem and core changes as well, due to
interdependancies on the driver core:
- hyperv driver updates
- drivers/memory being created and some drivers moved into it
- extcon driver subsystem created out of the old Android staging switch
driver code
- dynamic debug updates
- printk rework, and /dev/kmsg changes
All of this has been tested in the linux-next releases for a few weeks
with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg Kroah-Hartman:
"Here's the driver core, and other driver subsystems, pull request for
the 3.5-rc1 merge window.
Outside of a few minor driver core changes, we ended up with the
following different subsystem and core changes as well, due to
interdependancies on the driver core:
- hyperv driver updates
- drivers/memory being created and some drivers moved into it
- extcon driver subsystem created out of the old Android staging
switch driver code
- dynamic debug updates
- printk rework, and /dev/kmsg changes
All of this has been tested in the linux-next releases for a few weeks
with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
Fix up conflicts in drivers/extcon/extcon-max8997.c where git noticed
that a patch to the deleted drivers/misc/max8997-muic.c driver needs to
be applied to this one.
* tag 'driver-core-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (90 commits)
uio_pdrv_genirq: get irq through platform resource if not set otherwise
memory: tegra{20,30}-mc: Remove empty *_remove()
printk() - isolate KERN_CONT users from ordinary complete lines
sysfs: get rid of some lockdep false positives
Drivers: hv: util: Properly handle version negotiations.
Drivers: hv: Get rid of an unnecessary check in vmbus_prep_negotiate_resp()
memory: tegra{20,30}-mc: Use dev_err_ratelimited()
driver core: Add dev_*_ratelimited() family
Driver Core: don't oops with unregistered driver in driver_find_device()
printk() - restore prefix/timestamp printing for multi-newline strings
printk: add stub for prepend_timestamp()
ARM: tegra30: Make MC optional in Kconfig
ARM: tegra20: Make MC optional in Kconfig
ARM: tegra30: MC: Remove unnecessary BUG*()
ARM: tegra20: MC: Remove unnecessary BUG*()
printk: correctly align __log_buf
ARM: tegra30: Add Tegra Memory Controller(MC) driver
ARM: tegra20: Add Tegra Memory Controller(MC) driver
printk() - restore timestamp printing at console output
printk() - do not merge continuation lines of different threads
...
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Linus Torvalds
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99262a3daf |
Autogenerated GPG tag for Rusty D1ADB8F1: 15EE 8D6C AB0E 7F0C F999 BFCB D920 0E6C D1AD B8F1
-----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJPuv35AAoJENkgDmzRrbjxUx4P/0uc+0oNnZv11vYQsqHuhURa zMlsVdlXGVkvPqQiLY0QkrK5LcO6KiSnSk8vEnOYFIPjL4wNqL/4RRRLnTAJwmE+ lsrL9DblI8Ira/EZRv7d2L12QrP+F2ZGKOZr67uVxSaxH71fUqtiJ0jqA/I8AYH7 /V7+DgdIB1DD28Ya/JEFEUi41F08A6MU10hpaQWy9kXv09gCc9apgvH7/S3s9DaQ G640YWkoKZAx/OFBb8XFvpu9LqZcVl02Nl8goMZOKnMctC4iU3km7HeVjfwCgLjO AdA5spLMhDkS/xrpI0mSQ/wT0k0+sSYW5vEdW9N4XLZza0NgH9GfU4RtEuK85Slj 7bPviZOcpjtt0sGi4wXCaVjZyHROX6tyRvTMUAIj3D0oJglb5T9D3MCvQnadILb0 I0+7gk3d9rHqkO6CmjNaZG9IwR9NpFkbuolcFQuEaZoUMoKd2pYNQyxpbFGl+jCl 7ViFHAy+fydNqDoETKincld4A43KWxOV7jyEJd7hloKcCixsqI7ZdPS7X8amec72 a0hfNgMJzarZkTgo61Hair/d+vKGRJPgEdF1Yq76SDhYKD1TeWeDjmboctsiMjqe f5M4C6IdNJj9cDIlCxMk+3bX250oy7KG77v7Ux0/7nvtSWVa3yEMowD57hnn1But 0gNC8bjXDHRsho90rDRN =Kj9v -----END PGP SIGNATURE----- Merge tag 'virtio-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus Pull virtio updates from Rusty Russell. * tag 'virtio-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: virtio: fix typo in comment virtio-mmio: Devices parameter parsing virtio_blk: Drop unused request tracking list virtio-blk: Fix hot-unplug race in remove method virtio: Use ida to allocate virtio index virtio: balloon: separate out common code between remove and freeze functions virtio: balloon: drop restore_common() 9p: disconnect channel when PCI device is removed virtio: update documentation to v0.9.5 of spec |
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Pawel Moll
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81a054ce0b |
virtio-mmio: Devices parameter parsing
This patch adds an option to instantiate guest virtio-mmio devices basing on a kernel command line (or module) parameter, for example: virtio_mmio.devices=0x100@0x100b0000:48 Signed-off-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> |
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Linus Torvalds
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226da0dbc8 |
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU changes from Ingo Molnar:
"This is the v3.5 RCU tree from Paul E. McKenney:
1) A set of improvements and fixes to the RCU_FAST_NO_HZ feature (with
more on the way for 3.6). Posted to LKML:
https://lkml.org/lkml/2012/4/23/324 (commits 1-3 and 5),
https://lkml.org/lkml/2012/4/16/611 (commit 4),
https://lkml.org/lkml/2012/4/30/390 (commit 6), and
https://lkml.org/lkml/2012/5/4/410 (commit 7, combined with
the other commits for the convenience of the tester).
2) Changes to make rcu_barrier() avoid disrupting execution of CPUs
that have no RCU callbacks. Posted to LKML:
https://lkml.org/lkml/2012/4/23/322.
3) A couple of commits that improve the efficiency of the interaction
between preemptible RCU and the scheduler, these two being all that
survived an abortive attempt to allow preemptible RCU's
__rcu_read_lock() to be inlined. The full set was posted to LKML at
https://lkml.org/lkml/2012/4/14/143, and the first and third patches
of that set remain.
4) Lai Jiangshan's algorithmic implementation of SRCU, which includes
call_srcu() and srcu_barrier(). A major feature of this new
implementation is that synchronize_srcu() no longer disturbs the
execution of other CPUs. This work is based on earlier
implementations by Peter Zijlstra and Paul E. McKenney. Posted to
LKML: https://lkml.org/lkml/2012/2/22/82.
5) A number of miscellaneous bug fixes and improvements which were
posted to LKML at: https://lkml.org/lkml/2012/4/23/353 with
subsequent updates posted to LKML."
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits)
rcu: Make rcu_barrier() less disruptive
rcu: Explicitly initialize RCU_FAST_NO_HZ per-CPU variables
rcu: Make RCU_FAST_NO_HZ handle timer migration
rcu: Update RCU maintainership
rcu: Make exit_rcu() more precise and consolidate
rcu: Move PREEMPT_RCU preemption to switch_to() invocation
rcu: Ensure that RCU_FAST_NO_HZ timers expire on correct CPU
rcu: Add rcutorture test for call_srcu()
rcu: Implement per-domain single-threaded call_srcu() state machine
rcu: Use single value to handle expedited SRCU grace periods
rcu: Improve srcu_readers_active_idx()'s cache locality
rcu: Remove unused srcu_barrier()
rcu: Implement a variant of Peter's SRCU algorithm
rcu: Improve SRCU's wait_idx() comments
rcu: Flip ->completed only once per SRCU grace period
rcu: Increment upper bit only for srcu_read_lock()
rcu: Remove fast check path from __synchronize_srcu()
rcu: Direct algorithmic SRCU implementation
rcu: Introduce rcutorture testing for rcu_barrier()
timer: Fix mod_timer_pinned() header comment
...
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Marek Szyprowski
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c790950928 |
ARM: integrate CMA with DMA-mapping subsystem
This patch adds support for CMA to dma-mapping subsystem for ARM architecture. By default a global CMA area is used, but specific devices are allowed to have their private memory areas if required (they can be created with dma_declare_contiguous() function during board initialisation). Contiguous memory areas reserved for DMA are remapped with 2-level page tables on boot. Once a buffer is requested, a low memory kernel mapping is updated to to match requested memory access type. GFP_ATOMIC allocations are performed from special pool which is created early during boot. This way remapping page attributes is not needed on allocation time. CMA has been enabled unconditionally for ARMv6+ systems. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> CC: Michal Nazarewicz <mina86@mina86.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Rob Clark <rob.clark@linaro.org> Tested-by: Ohad Ben-Cohen <ohad@wizery.com> Tested-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Tested-by: Robert Nelson <robertcnelson@gmail.com> Tested-by: Barry Song <Baohua.Song@csr.com> |
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Marek Szyprowski
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c64be2bb1c |
drivers: add Contiguous Memory Allocator
The Contiguous Memory Allocator is a set of helper functions for DMA mapping framework that improves allocations of contiguous memory chunks. CMA grabs memory on system boot, marks it with MIGRATE_CMA migrate type and gives back to the system. Kernel is allowed to allocate only movable pages within CMA's managed memory so that it can be used for example for page cache when DMA mapping do not use it. On dma_alloc_from_contiguous() request such pages are migrated out of CMA area to free required contiguous block and fulfill the request. This allows to allocate large contiguous chunks of memory at any time assuming that there is enough free memory available in the system. This code is heavily based on earlier works by Michal Nazarewicz. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Rob Clark <rob.clark@linaro.org> Tested-by: Ohad Ben-Cohen <ohad@wizery.com> Tested-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Tested-by: Robert Nelson <robertcnelson@gmail.com> Tested-by: Barry Song <Baohua.Song@csr.com> |
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Minho Ban
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2df83fa4bc |
PM / Hibernate: Use get_gendisk to verify partition if resume_file is integer format
Sometimes resume= parameter comes in integer style (e.g. major:minor) and then name_to_dev_t can not detect partition properly. (especially async device like usb, mmc). This patch calls get_gendisk() if resumewait is true and resume_file is in integer format to work around this problem. Signed-off-by: Minho Ban <mhban@samsung.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> |
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Paul Gortmaker
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bb8187d35f |
MCA: delete all remaining traces of microchannel bus support.
Hardware with MCA bus is limited to 386 and 486 class machines that are now 20+ years old and typically with less than 32MB of memory. A quick search on the internet, and you see that even the MCA hobbyist/enthusiast community has lost interest in the early 2000 era and never really even moved ahead from the 2.4 kernels to the 2.6 series. This deletes anything remaining related to CONFIG_MCA from core kernel code and from the x86 architecture. There is no point in carrying this any further into the future. One complication to watch for is inadvertently scooping up stuff relating to machine check, since there is overlap in the TLA name space (e.g. arch/x86/boot/mca.c). Cc: Thomas Gleixner <tglx@linutronix.de> Cc: James Bottomley <JBottomley@Parallels.com> Cc: x86@kernel.org Acked-by: Ingo Molnar <mingo@elte.hu> Acked-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> |
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Bjorn Helgaas
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284f5f9dba |
PCI: work around Stratus ftServer broken PCIe hierarchy
A PCIe downstream port is a P2P bridge. Its secondary interface is
a link that should lead only to device 0 (unless ARI is enabled)[1], so
we don't probe for non-zero device numbers.
Some Stratus ftServer systems have a PCIe downstream port (02:00.0) that
leads to both an upstream port (03:00.0) and a downstream port (03:01.0),
and 03:01.0 has important devices below it:
[0000:02]-+-00.0-[03-3c]--+-00.0-[04-09]--...
\-01.0-[0a-0d]--+-[USB]
+-[NIC]
+-...
Previously, we didn't enumerate device 03:01.0, so USB and the network
didn't work. This patch adds a DMI quirk to scan all device numbers,
not just 0, below a downstream port.
Based on a patch by Prarit Bhargava.
[1] PCIe spec r3.0, sec 7.3.1
CC: Myron Stowe <mstowe@redhat.com>
CC: Don Dutile <ddutile@redhat.com>
CC: James Paradis <james.paradis@stratus.com>
CC: Matthew Wilcox <matthew.r.wilcox@intel.com>
CC: Jesse Barnes <jbarnes@virtuousgeek.org>
CC: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Jim Cromie
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29e36c9ffb |
dynamic_debug: update Documentation/*, Kconfig.debug
In dynamic-debug-howto.txt: - add section: Debug Messages at Module Initialization Time - update flags indicators in example outputs to include '=' - make flags descriptions tabular - add item on '_' flag-char - add dyndbg, boot-args examples - rewrap some paragraphs with long lines In Kconfig.debug, note that compiling with -DDEBUG enables all pr_debug()s in that code. In kernel-parameters.txt, add dyndbg and module.dyndbg items, and deprecate ddebug_query. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Acked-by: Jason Baron <jbaron@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Paul E. McKenney
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dabb8aa960 |
rcu: Document kernel command-line parameters
Bring RCU's kernel command-line parameter documentation up to date. Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> |
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Dave Airlie
|
effbc4fd8e |
Merge branch 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel into drm-core-next
Daniel Vetter wrote First pull request for 3.5-next, slightly large than usual because new things kept coming in since the last pull for 3.4. Highlights: - first batch of hw enablement for vlv (Jesse et al) and hsw (Eugeni). pci ids are not yet added, and there's still quite a few patches to merge (mostly modesetting). To make QA easier I've decided to merge this stuff in pieces. - loads of cleanups and prep patches spurred by the above. Especially vlv is a real frankenstein chip, but also hsw is stretching our driver's code design. Expect more to come in this area for 3.5. - more gmbus fixes, cleanups and improvements by Daniel Kurtz. Again, there are more patches needed (and some already queued up), but I wanted to split this a bit for better testing. - pwrite/pread rework and retuning. This series has been in the works for a few months already and a lot of i-g-t tests have been created for it. Now it's finally ready to be merged. Note that one patch in this series touches include/pagemap.h, that patch is acked-by akpm. - reduce mappable pressure and relocation throughput improvements from Chris. - mmap offset exhaustion mitigation by Chris Wilson. - a start at figuring out which codepaths in our messy dri1/ums+gem/kms driver we actually need to support by bailing out of unsupported case. The driver now refuses to load without kms on gen6+ and disallows a few ioctls that userspace never used in certain cases. More of this will definitely come. - More decoupling of global gtt and ppgtt. - Improved dual-link lvds detection by Takashi Iwai. - Shut up the compiler + plus fix the fallout (Ben) - Inverted panel brightness handling (mostly Acer manages to break things in this way). - Small fixlets and adjustements and some minor things to help debugging. Regression-wise QA reported quite a few issues on ivb, but all of them turned out to be hw stability issues which are already fixed in drm-intel-fixes (QA runs the nightly regression tests on -next alone, without -fixes automatically merged in). There's still one issue open on snb, it looks like occlusion query writes are not quite as cache coherent as we've expected. With some of the pwrite adjustements we can now reliably hit this. Kernel workaround for it is in the works." * 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel: (101 commits) drm/i915: VCS is not the last ring drm/i915: Add a dual link lvds quirk for MacBook Pro 8,2 drm/i915: make quirks more verbose drm/i915: dump the DMA fetch addr register on pre-gen6 drm/i915/sdvo: Include YRPB as an additional TV output type drm/i915: disallow gem init ioctl on ilk drm/i915: refuse to load on gen6+ without kms drm/i915: extract gt interrupt handler drm/i915: use render gen to switch ring irq functions drm/i915: rip out old HWSTAM missed irq WA for vlv drm/i915: open code gen6+ ring irqs drm/i915: ring irq cleanups drm/i915: add SFUSE_STRAP registers for digital port detection drm/i915: add WM_LINETIME registers drm/i915: add WRPLL clocks drm/i915: add LCPLL control registers drm/i915: add SSC offsets for SBI access drm/i915: add port clock selection support for HSW drm/i915: add S PLL control drm/i915: add PIXCLK_GATE register ... Conflicts: drivers/char/agp/intel-agp.h drivers/char/agp/intel-gtt.c drivers/gpu/drm/i915/i915_debugfs.c |
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Linus Torvalds
|
71db34fc43 |
Merge branch 'for-3.4' of git://linux-nfs.org/~bfields/linux
Pull nfsd changes from Bruce Fields: Highlights: - Benny Halevy and Tigran Mkrtchyan implemented some more 4.1 features, moving us closer to a complete 4.1 implementation. - Bernd Schubert fixed a long-standing problem with readdir cookies on ext2/3/4. - Jeff Layton performed a long-overdue overhaul of the server reboot recovery code which will allow us to deprecate the current code (a rather unusual user of the vfs), and give us some needed flexibility for further improvements. - Like the client, we now support numeric uid's and gid's in the auth_sys case, allowing easier upgrades from NFSv2/v3 to v4.x. Plus miscellaneous bugfixes and cleanup. Thanks to everyone! There are also some delegation fixes waiting on vfs review that I suppose will have to wait for 3.5. With that done I think we'll finally turn off the "EXPERIMENTAL" dependency for v4 (though that's mostly symbolic as it's been on by default in distro's for a while). And the list of 4.1 todo's should be achievable for 3.5 as well: http://wiki.linux-nfs.org/wiki/index.php/Server_4.0_and_4.1_issues though we may still want a bit more experience with it before turning it on by default. * 'for-3.4' of git://linux-nfs.org/~bfields/linux: (55 commits) nfsd: only register cld pipe notifier when CONFIG_NFSD_V4 is enabled nfsd4: use auth_unix unconditionally on backchannel nfsd: fix NULL pointer dereference in cld_pipe_downcall nfsd4: memory corruption in numeric_name_to_id() sunrpc: skip portmap calls on sessions backchannel nfsd4: allow numeric idmapping nfsd: don't allow legacy client tracker init for anything but init_net nfsd: add notifier to handle mount/unmount of rpc_pipefs sb nfsd: add the infrastructure to handle the cld upcall nfsd: add a header describing upcall to nfsdcld nfsd: add a per-net-namespace struct for nfsd sunrpc: create nfsd dir in rpc_pipefs nfsd: add nfsd4_client_tracking_ops struct and a way to set it nfsd: convert nfs4_client->cl_cb_flags to a generic flags field NFSD: Fix nfs4_verifier memory alignment NFSD: Fix warnings when NFSD_DEBUG is not defined nfsd: vfs_llseek() with 32 or 64 bit offsets (hashes) nfsd: rename 'int access' to 'int may_flags' in nfsd_open() ext4: return 32/64-bit dir name hash according to usage type fs: add new FMODE flags: FMODE_32bithash and FMODE_64bithash ... |
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J. Bruce Fields
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e9541ce8ef |
nfsd4: allow numeric idmapping
Mimic the client side by providing a module parameter that turns off idmapping in the auth_sys case, for backwards compatibility with NFSv2 and NFSv3. Unlike in the client case, we don't have any way to negotiate, since the client can return an error to us if it doesn't like the id that we return to it in (for example) a getattr call. However, it has always been possible for servers to return numeric id's, and as far as we're aware clients have always been able to handle them. Also, in the auth_sys case clients already need to have numeric id's the same between client and server. Therefore we believe it's safe to default this to on; but the module parameter is available to return to previous behavior if this proves to be a problem in some unexpected setup. Signed-off-by: J. Bruce Fields <bfields@redhat.com> |
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Dave Young
|
02608bef8f |
module: add kernel param to force disable module load
Sometimes we need to test a kernel of same version with code or config option changes. We already have sysctl to disable module load, but add a kernel parameter will be more convenient. Since modules_disabled is int, so here use bint type in core_param. TODO: make sysctl accept bool and change modules_disabled to bool Signed-off-by: Dave Young <dyoung@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> |
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Linus Torvalds
|
0e65ae099c |
Miscellaneous Itanium patches
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Linus Torvalds
|
475c77edf8 |
Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci
Pull PCI changes (including maintainer change) from Jesse Barnes: "This pull has some good cleanups from Bjorn and Yinghai, as well as some more code from Yinghai to better handle resource re-allocation when enabled. There's also a new initcall_debug feature from Arjan which will print out quirk timing information to help identify slow quirks for fixing or refinement (Yinghai sent in a few patches to do just that once the new debug code landed). Beyond that, I'm handing off PCI maintainership to Bjorn Helgaas. He's been a core PCI and Linux contributor for some time now, and has kindly volunteered to take over. I just don't feel I have the time for PCI review and work that it deserves lately (I've taken on some other projects), and haven't been as responsive lately as I'd like, so I approached Bjorn asking if he'd like to manage things. He's going to give it a try, and I'm confident he'll do at least as well as I have in keeping the tree managed, patches flowing, and keeping things stable." Fix up some fairly trivial conflicts due to other cleanups (mips device resource fixup cleanups clashing with list handling cleanup, ppc iseries removal clashing with pci_probe_only cleanup etc) * 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci: (112 commits) PCI: Bjorn gets PCI hotplug too PCI: hand PCI maintenance over to Bjorn Helgaas unicore32/PCI: move <asm-generic/pci-bridge.h> include to asm/pci.h sparc/PCI: convert devtree and arch-probed bus addresses to resource powerpc/PCI: allow reallocation on PA Semi powerpc/PCI: convert devtree bus addresses to resource powerpc/PCI: compute I/O space bus-to-resource offset consistently arm/PCI: don't export pci_flags PCI: fix bridge I/O window bus-to-resource conversion x86/PCI: add spinlock held check to 'pcibios_fwaddrmap_lookup()' PCI / PCIe: Introduce command line option to disable ARI PCI: make acpihp use __pci_remove_bus_device instead PCI: export __pci_remove_bus_device PCI: Rename pci_remove_behind_bridge to pci_stop_and_remove_behind_bridge PCI: Rename pci_remove_bus_device to pci_stop_and_remove_bus_device PCI: print out PCI device info along with duration PCI: Move "pci reassigndev resource alignment" out of quirks.c PCI: Use class for quirk for usb host controller fixup PCI: Use class for quirk for ti816x class fixup PCI: Use class for quirk for intel e100 interrupt fixup ... |
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Linus Torvalds
|
f63d395d47 |
NFS client updates for Linux 3.4
New features include:
- Add NFS client support for containers.
This should enable most of the necessary functionality, including
lockd support, and support for rpc.statd, NFSv4 idmapper and
RPCSEC_GSS upcalls into the correct network namespace from
which the mount system call was issued.
- NFSv4 idmapper scalability improvements
Base the idmapper cache on the keyring interface to allow concurrent
access to idmapper entries. Start the process of migrating users from
the single-threaded daemon-based approach to the multi-threaded
request-key based approach.
- NFSv4.1 implementation id.
Allows the NFSv4.1 client and server to mutually identify each other
for logging and debugging purposes.
- Support the 'vers=4.1' mount option for mounting NFSv4.1 instead of
having to use the more counterintuitive 'vers=4,minorversion=1'.
- SUNRPC tracepoints.
Start the process of adding tracepoints in order to improve debugging
of the RPC layer.
- pNFS object layout support for autologin.
Important bugfixes include:
- Fix a bug in rpc_wake_up/rpc_wake_up_status that caused them to fail
to wake up all tasks when applied to priority waitqueues.
- Ensure that we handle read delegations correctly, when we try to
truncate a file.
- A number of fixes for NFSv4 state manager loops (mostly to do with
delegation recovery).
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Merge tag 'nfs-for-3.4-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client updates for Linux 3.4 from Trond Myklebust:
"New features include:
- Add NFS client support for containers.
This should enable most of the necessary functionality, including
lockd support, and support for rpc.statd, NFSv4 idmapper and
RPCSEC_GSS upcalls into the correct network namespace from which
the mount system call was issued.
- NFSv4 idmapper scalability improvements
Base the idmapper cache on the keyring interface to allow
concurrent access to idmapper entries. Start the process of
migrating users from the single-threaded daemon-based approach to
the multi-threaded request-key based approach.
- NFSv4.1 implementation id.
Allows the NFSv4.1 client and server to mutually identify each
other for logging and debugging purposes.
- Support the 'vers=4.1' mount option for mounting NFSv4.1 instead of
having to use the more counterintuitive 'vers=4,minorversion=1'.
- SUNRPC tracepoints.
Start the process of adding tracepoints in order to improve
debugging of the RPC layer.
- pNFS object layout support for autologin.
Important bugfixes include:
- Fix a bug in rpc_wake_up/rpc_wake_up_status that caused them to
fail to wake up all tasks when applied to priority waitqueues.
- Ensure that we handle read delegations correctly, when we try to
truncate a file.
- A number of fixes for NFSv4 state manager loops (mostly to do with
delegation recovery)."
* tag 'nfs-for-3.4-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (224 commits)
NFS: fix sb->s_id in nfs debug prints
xprtrdma: Remove assumption that each segment is <= PAGE_SIZE
xprtrdma: The transport should not bug-check when a dup reply is received
pnfs-obj: autologin: Add support for protocol autologin
NFS: Remove nfs4_setup_sequence from generic rename code
NFS: Remove nfs4_setup_sequence from generic unlink code
NFS: Remove nfs4_setup_sequence from generic read code
NFS: Remove nfs4_setup_sequence from generic write code
NFS: Fix more NFS debug related build warnings
SUNRPC/LOCKD: Fix build warnings when CONFIG_SUNRPC_DEBUG is undefined
nfs: non void functions must return a value
SUNRPC: Kill compiler warning when RPC_DEBUG is unset
SUNRPC/NFS: Add Kbuild dependencies for NFS_DEBUG/RPC_DEBUG
NFS: Use cond_resched_lock() to reduce latencies in the commit scans
NFSv4: It is not safe to dereference lsp->ls_state in release_lockowner
NFS: ncommit count is being double decremented
SUNRPC: We must not use list_for_each_entry_safe() in rpc_wake_up()
Try using machine credentials for RENEW calls
NFSv4.1: Fix a few issues in filelayout_commit_pagelist
NFSv4.1: Clean ups and bugfixes for the pNFS read/writeback/commit code
...
|
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Sebastian Andrzej Siewior
|
b86c4782ab |
Documentation/kernel-parameters: remove inttest parameter
According to grep I see no users:
| #git grep inttest
| Documentation/kernel-parameters.txt: inttest= [IA-64]
The parameters itself has no description what it supposed to do.
According to the history tree, it was introduced in "[PATCH] Updated
Documentation/kernel-parameters.txt" ("10414c6ddb"). By that time that
parameter had an user. It was removed later by "[PATCH] ia64: SGI SN
update" ("c6bacd5010ec") by Jesse Barnes himself.
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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Linus Torvalds
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be53bfdb80 |
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Pull drm main changes from Dave Airlie:
"This is the main drm pull request, I'm probably going to send two more
smaller ones, will explain below.
This contains a patch that is also in the fbdev tree, but it should be
the same patch, it added an API for hot unplugging framebuffer
devices, and I need that API for a new driver.
It also contains some changes to the i2c tree which Jean has acked,
and one change to moorestown platform stuff in x86.
Highlights:
- new drivers: UDL driver for USB displaylink devices, kms only,
should support correct hotplug operations.
- core: i2c speedups + better hotplug support, EDID overriding via
firmware interface - allows user to load a firmware for a broken
monitor/kvm from userspace, it even has documentation for it.
- exynos: new HDMI audio + hdmi 1.4 + virtual output driver
- gma500: code cleanup
- radeon: cleanups, CS optimisations, streamout support and pageflip
fix
- nouveau: NVD9 displayport support + more reclocking work
- i915: re-enabling GMBUS, finish gpu patch (might help hibernation
who knows), missed irq fixes, stencil tiling fixes, interlaced
support, aliasesd PPGTT support for SNB/IVB, swizzling for SNB/IVB,
semaphore fixes
As well as the usual bunch of cleanups and fixes all over the place.
I've got two things I'd like to merge a bit later:
a) AMD support for all their new radeonhd 7000 series GPU and APUs.
AMD dropped this a bit late due to insane internal review
processes, (please AMD just follow Intel and let open source guys
ship stuff early) however I don't want to penalise people who own
this hardware (since its been on sale for 3-4 months and GPU hw
doesn't exactly have a lifetime in years) and consign them to
using closed drivers for longer than necessary. The changes are
well contained and just plug into the driver new gpu functionality
so they should be fairly regression proof. I just want to give
them a bit of a run on the hw AMD kindly sent me.
b) drm prime/dma-buf interface code. This is just infrastructure
code to expose the dma-buf stuff to drm drivers and to userspace.
I'm not planning on pushing any driver support in this cycle
(except maybe exynos), but I'd like to get the infrastructure code
in so for the next cycle I can start getting the driver support
into the individual drivers. We have started driver support for
i915, nouveau and udl along with I think exynos and omap in
staging. However this code relies on the dma-buf tree being
pulled into your tree first since it needs the latest interfaces
from that tree. I'll push to get that tree sent asap.
(oh and any warnings you see in i915 are gcc's fault from what anyone
can see)."
Fix up trivial conflicts in arch/x86/platform/mrst/mrst.c due to the new
msic_thermal_platform_data() thermal function being added next to the
tc35876x_platform_data() i2c device function..
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (326 commits)
drm/i915: use DDC_ADDR instead of hard-coding it
drm/radeon: use DDC_ADDR instead of hard-coding it
drm: remove unneeded redefinition of DDC_ADDR
drm/exynos: added virtual display driver.
drm: allow loading an EDID as firmware to override broken monitor
drm/exynos: enable hdmi audio feature
drm/exynos: add default pixel format for plane
drm/exynos: cleanup exynos_hdmi.h
drm/exynos: add is_local member in exynos_drm_subdrv struct
drm/exynos: add subdrv open/close functions
drm/exynos: remove module of exynos drm subdrv
drm/exynos: release pending pageflip events when closed
drm/exynos: added new funtion to get/put dma address.
drm/exynos: update gem and buffer framework.
drm/exynos: added mode_fixup feature and code clean.
drm/exynos: add HDMI version 1.4 support
drm/exynos: remove exynos_mixer.h
gma500: Fix mmap frambuffer
drm/radeon: Drop radeon_gem_object_(un)pin.
drm/radeon: Restrict offset for legacy display engine.
...
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Jiri Kosina
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fcf4d8212a |
thp: documentation: 'transparent_hugepage=' can also be specified on cmdline
The behavior of THP can either be toggled through sysfs in runtime or using a kernel cmdline parameter 'transparent_hugepage='. Document the latter in kernel-parameters.txt Signed-off-by: Jiri Kosina <jkosina@suse.cz> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Mel Gorman <mel@csn.ul.ie> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Sachin Bhamare
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18d98f6c04 |
pnfs-obj: autologin: Add support for protocol autologin
The pnfs-objects protocol mandates that we autologin into devices not
present in the system, according to information specified in the
get_device_info returned from the server.
The Protocol specifies two login hints.
1. An IP address:port combination
2. A string URI which is constructed as a URL with a protocol prefix
followed by :// and a string as address. For each protocol prefix
the string-address format might be different.
We only support the second option. The first option is just redundant
to the second one.
NOTE: The Kernel part of autologin does not parse the URI string. It
just channels it to a user-mode script. So any new login protocols should
only update the user-mode script which is a part of the nfs-utils package,
but the Kernel need not change.
We implement the autologin by using the call_usermodehelper() API.
(Thanks to Steve Dickson <steved@redhat.com> for pointing it out)
So there is no running daemon needed, and/or special setup.
We Add the osd_login_prog Kernel module parameters which defaults to:
/sbin/osd_login
Kernel try's to upcall the program specified in osd_login_prog. If the file is
not found or the execution fails Kernel will disable any farther upcalls, by
zeroing out osd_login_prog, Until Admin re-enables it by setting the
osd_login_prog parameter to a proper program.
Also add text about the osd_login program command line API to:
Documentation/filesystems/nfs/pnfs.txt
and documentation of the new osd_login_prog module parameter to:
Documentation/kernel-parameters.txt
TODO: Add timeout option in the case osd_login program gets
stuck
Signed-off-by: Sachin Bhamare <sbhamare@panasas.com>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Linus Torvalds
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69a7aebcf0 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree from Jiri Kosina: "It's indeed trivial -- mostly documentation updates and a bunch of typo fixes from Masanari. There are also several linux/version.h include removals from Jesper." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (101 commits) kcore: fix spelling in read_kcore() comment constify struct pci_dev * in obvious cases Revert "char: Fix typo in viotape.c" init: fix wording error in mm_init comment usb: gadget: Kconfig: fix typo for 'different' Revert "power, max8998: Include linux/module.h just once in drivers/power/max8998_charger.c" writeback: fix fn name in writeback_inodes_sb_nr_if_idle() comment header writeback: fix typo in the writeback_control comment Documentation: Fix multiple typo in Documentation tpm_tis: fix tis_lock with respect to RCU Revert "media: Fix typo in mixer_drv.c and hdmi_drv.c" Doc: Update numastat.txt qla4xxx: Add missing spaces to error messages compiler.h: Fix typo security: struct security_operations kerneldoc fix Documentation: broken URL in libata.tmpl Documentation: broken URL in filesystems.tmpl mtd: simplify return logic in do_map_probe() mm: fix comment typo of truncate_inode_pages_range power: bq27x00: Fix typos in comment ... |
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Carsten Emde
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da0df92b57 |
drm: allow loading an EDID as firmware to override broken monitor
Broken monitors and/or broken graphic boards may send erroneous or no EDID data. This also applies to broken KVM devices that are unable to correctly forward the EDID data of the connected monitor but invent their own fantasy data. This patch allows to specify an EDID data set to be used instead of probing the monitor for it. It contains built-in data sets of frequently used screen resolutions. In addition, a particular EDID data set may be provided in the /lib/firmware directory and loaded via the firmware interface. The name is passed to the kernel as module parameter of the drm_kms_helper module either when loaded options drm_kms_helper edid_firmware=edid/1280x1024.bin or as kernel commandline parameter drm_kms_helper.edid_firmware=edid/1280x1024.bin It is also possible to restrict the usage of a specified EDID data set to a particular connector. This is done by prepending the name of the connector to the name of the EDID data set using the syntax edid_firmware=[<connector>:]<edid> such as, for example, edid_firmware=DVI-I-1:edid/1920x1080.bin in which case no other connector will be affected. The built-in data sets are Resolution Name -------------------------------- 1024x768 edid/1024x768.bin 1280x1024 edid/1280x1024.bin 1680x1050 edid/1680x1050.bin 1920x1080 edid/1920x1080.bin They are ignored, if a file with the same name is available in the /lib/firmware directory. The built-in EDID data sets are based on standard timings that may not apply to a particular monitor and even crash it. Ideally, EDID data of the connected monitor should be used. They may be obtained through the drm/cardX/cardX-<connector>/edid entry in the /sys/devices PCI directory of a correctly working graphics adapter. It is even possible to specify the name of an EDID data set on-the-fly via the /sys/module interface, e.g. echo edid/myedid.bin >/sys/module/drm_kms_helper/parameters/edid_firmware The new screen mode is considered when the related kernel function is called for the first time after the change. Such calls are made when the X server is started or when the display settings dialog is opened in an already running X server. Signed-off-by: Carsten Emde <C.Emde@osadl.org> Signed-off-by: Dave Airlie <airlied@redhat.com> |
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Carsten Emde
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4dca20efb1 |
drm/i915: panel: invert brightness via quirk
A machine may need to invert the panel backlight brightness value. This patch adds the infrastructure for a quirk to do so. Signed-off-by: Carsten Emde <C.Emde@osadl.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> |
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Carsten Emde
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7bd90909bb |
drm/i915: panel: invert brightness via parameter
Following the documentation of the Legacy Backlight Brightness (LBB) Register in the configuration space of some Intel PCI graphics adapters, setting the LBB register with the value 0x0 causes the backlight to be turned off, and 0xFF causes the backlight to be set to 100% intensity (http://download.intel.com/embedded/processors/Whitepaper/324567.pdf). The Acer Aspire 5734Z, however, turns the backlight off at 0xFF and sets it to maximum intensity at 0. In consequence, the screen of this systems becomes dark at an early boot stage which makes it unusable. The same inversion applies to the BLC_PWM_CTL I915 register. This problem was introduced in kernel version 2.6.38 when the PCI device of this system was first supported by the i915 KMS module. This patch adds a parameter to the i915 module to enable inversion of the brightness variable (i915.invert_brightness). Signed-off-by: Carsten Emde <C.Emde@osadl.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> |
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Matthew Garrett
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c22ab33290 |
kmsg_dump: don't run on non-error paths by default
Since commit
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Weston Andros Adamson
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db8ac8ba87 |
NFSv4: Send implementation id with exchange_id
Send the nfs implementation id in EXCHANGE_ID requests unless the module parameter nfs.send_implementation_id is 0. This adds a CONFIG variable for the nii_domain that defaults to "kernel.org". Signed-off-by: Weston Andros Adamson <dros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> |
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Rafael J. Wysocki
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6748dcc269 |
PCI / PCIe: Introduce command line option to disable ARI
There are PCIe devices on the market that report ARI support but then fail to initialize correctly when ARI is actually used. This leads to situations in which kernels 2.6.34 and newer fail to handle systems where the previous kernels worked without any apparent problems. Unfortunately, it is currently unknown how many such devices are there. For this reason, introduce a new kernel command line option, pci=noari, allowing users to disable PCIe ARI altogether if they see problems with PCIe device initialization. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> |
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Yinghai Lu
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b55438fdd5 |
PCI: prepare pci=realloc for multiple options
Let the user could enable and disable with pci=realloc=on or pci=realloc=off
Also
1. move variable and functions near the place they are used.
2. change macro to function
3. change related functions and variable to static and _init
4. update parameter description accordingly.
This will let us add a config option to control default behavior, and
still allow the user to turn off automatic reallocation if it fails on
their platform until a permanent solution is found.
-v2: still honor pci=realloc, and treat it as pci=realloc=on
also use enum instead of ...
-v3: update kernel-paramenters.txt according to Jesse.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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MUNEDA Takahiro
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7570a333d8 |
PCI: Add pcie_hp=nomsi to disable MSI/MSI-X for pciehp driver
Add a parameter to avoid using MSI/MSI-X for PCIe native hotplug; it's known to be buggy on some platforms. In my environment, while shutting down, following stack trace is shown sometimes. irq 16: nobody cared (try booting with the "irqpoll" option) Pid: 1081, comm: reboot Not tainted 3.2.0 #1 Call Trace: <IRQ> [<ffffffff810cec1d>] __report_bad_irq+0x3d/0xe0 [<ffffffff810cee1c>] note_interrupt+0x15c/0x210 [<ffffffff810cc485>] handle_irq_event_percpu+0xb5/0x210 [<ffffffff810cc621>] handle_irq_event+0x41/0x70 [<ffffffff810cf675>] handle_fasteoi_irq+0x55/0xc0 [<ffffffff81015356>] handle_irq+0x46/0xb0 [<ffffffff814fbe9d>] do_IRQ+0x5d/0xe0 [<ffffffff814f146e>] common_interrupt+0x6e/0x6e [<ffffffff8106b040>] ? __do_softirq+0x60/0x210 [<ffffffff8108aeb1>] ? hrtimer_interrupt+0x151/0x240 [<ffffffff814fb5ec>] call_softirq+0x1c/0x30 [<ffffffff810152d5>] do_softirq+0x65/0xa0 [<ffffffff8106ae9d>] irq_exit+0xbd/0xe0 [<ffffffff814fbf8e>] smp_apic_timer_interrupt+0x6e/0x99 [<ffffffff814f9e5e>] apic_timer_interrupt+0x6e/0x80 <EOI> [<ffffffff814f0fb1>] ? _raw_spin_unlock_irqrestore+0x11/0x20 [<ffffffff812629fc>] pci_bus_write_config_word+0x6c/0x80 [<ffffffff81266fc2>] pci_intx+0x52/0xa0 [<ffffffff8127de3d>] pci_intx_for_msi+0x1d/0x30 [<ffffffff8127e4fb>] pci_msi_shutdown+0x7b/0x110 [<ffffffff81269d34>] pci_device_shutdown+0x34/0x50 [<ffffffff81326c4f>] device_shutdown+0x2f/0x140 [<ffffffff8107b981>] kernel_restart_prepare+0x31/0x40 [<ffffffff8107b9e6>] kernel_restart+0x16/0x60 [<ffffffff8107bbfd>] sys_reboot+0x1ad/0x220 [<ffffffff814f4b90>] ? do_page_fault+0x1e0/0x460 [<ffffffff811942d0>] ? __sync_filesystem+0x90/0x90 [<ffffffff8105c9aa>] ? __cond_resched+0x2a/0x40 [<ffffffff814ef090>] ? _cond_resched+0x30/0x40 [<ffffffff81169e17>] ? iterate_supers+0xb7/0xd0 [<ffffffff814f9382>] system_call_fastpath+0x16/0x1b handlers: [<ffffffff8138a0f0>] usb_hcd_irq [<ffffffff8138a0f0>] usb_hcd_irq [<ffffffff8138a0f0>] usb_hcd_irq Disabling IRQ #16 An un-wanted interrupt is generated when PCI driver switches from MSI/MSI-X to INTx while shutting down the device. The interrupt does not happen if MSI/MSI-X is not used on the device. I confirmed that this problem does not happen if pcie_hp=nomsi was specified and hotplug operation worked fine as usual. v2: Automatically disable MSI/MSI-X against following device: PCI bridge: Integrated Device Technology, Inc. Device 807f (rev 02) v3: Based on the review comment, combile the if statements. v4: Removed module parameter. Move some code to build pciehp as a module. Move device specific code to driver/pci/quirks.c. v5: Drop a device specific code until getting a vendor statement. Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: MUNEDA Takahiro <muneda.takahiro@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> |
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Masanari Iida
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24775d652b |
Documentation: Fix typo in kernel-parameters.txt
Correct spelling "mininum" to "minimum", "conroller" to "controller" and "explicitely" to "explicitly" in Documentation/kernel-parameters.txt Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz> |
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Trond Myklebust
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ef159e9177 |
NFSv4.1: Add a module parameter to set the number of session slots
Add the module parameter 'max_session_slots' to set the initial number of slots that the NFSv4.1 client will attempt to negotiate with the server. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> |
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Linus Torvalds
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507a03c1cb |
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
This includes initial support for the recently published ACPI 5.0 spec. In particular, support for the "hardware-reduced" bit that eliminates the dependency on legacy hardware. APEI has patches resulting from testing on real hardware. Plus other random fixes. * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (52 commits) acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi spec intel_idle: Split up and provide per CPU initialization func ACPI processor: Remove unneeded variable passed by acpi_processor_hotadd_init V2 ACPI processor: Remove unneeded cpuidle_unregister_driver call intel idle: Make idle driver more robust intel_idle: Fix a cast to pointer from integer of different size warning in intel_idle ACPI: kernel-parameters.txt : Add intel_idle.max_cstate intel_idle: remove redundant local_irq_disable() call ACPI processor: Fix error path, also remove sysdev link ACPI: processor: fix acpi_get_cpuid for UP processor intel_idle: fix API misuse ACPI APEI: Convert atomicio routines ACPI: Export interfaces for ioremapping/iounmapping ACPI registers ACPI: Fix possible alignment issues with GAS 'address' references ACPI, ia64: Use SRAT table rev to use 8bit or 16/32bit PXM fields (ia64) ACPI, x86: Use SRAT table rev to use 8bit or 32bit PXM fields (x86/x86-64) ACPI: Store SRAT table revision ACPI, APEI, Resolve false conflict between ACPI NVS and APEI ACPI, Record ACPI NVS regions ACPI, APEI, EINJ, Refine the fix of resource conflict ... |
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Masanari Iida
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2e92c7ad8f |
ACPI: kernel-parameters.txt : Add intel_idle.max_cstate
Add missing intel_idle.max_cstate in kernel-parameters.txt Signed-off-by Masanari Iida <standby24x7@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com> |
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Linus Torvalds
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83c2f912b4 |
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (39 commits) perf tools: Fix compile error on x86_64 Ubuntu perf report: Fix --stdio output alignment when --showcpuutilization used perf annotate: Get rid of field_sep check perf annotate: Fix usage string perf kmem: Fix a memory leak perf kmem: Add missing closedir() calls perf top: Add error message for EMFILE perf test: Change type of '-v' option to INCR perf script: Add missing closedir() calls tracing: Fix compile error when static ftrace is enabled recordmcount: Fix handling of elf64 big-endian objects. perf tools: Add const.h to MANIFEST to make perf-tar-src-pkg work again perf tools: Add support for guest/host-only profiling perf kvm: Do guest-only counting by default perf top: Don't update total_period on process_sample perf hists: Stop using 'self' for struct hist_entry perf hists: Rename total_session to total_period x86: Add counter when debug stack is used with interrupts enabled x86: Allow NMIs to hit breakpoints in i386 x86: Keep current stack in NMI breakpoints ... |
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Linus Torvalds
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541048a1d3 |
Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, reboot: Fix typo in nmi reboot path x86, NMI: Add to_cpumask() to silence compile warning x86, NMI: NMI selftest depends on the local apic x86: Add stack top margin for stack overflow checking x86, NMI: NMI-selftest should handle the UP case properly x86: Fix the 32-bit stackoverflow-debug build x86, NMI: Add knob to disable using NMI IPIs to stop cpus x86, NMI: Add NMI IPI selftest x86, reboot: Use NMI instead of REBOOT_VECTOR to stop cpus x86: Clean up the range of stack overflow checking x86: Panic on detection of stack overflow x86: Check stack overflow in detail |
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Linus Torvalds
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6296e5d3c0 |
Merge branch 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux
* 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux: slub: disallow changing cpu_partial from userspace for debug caches slub: add missed accounting slub: Extract get_freelist from __slab_alloc slub: Switch per cpu partial page support off for debugging slub: fix a possible memleak in __slab_alloc() slub: fix slub_max_order Documentation slub: add missed accounting slab: add taint flag outputting to debug paths. slub: add taint flag outputting to debug paths slab: introduce slab_max_order kernel parameter slab: rename slab_break_gfp_order to slab_max_order |
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Pekka Enberg
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5878cf431c | Merge branch 'slab/urgent' into slab/for-linus | |
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Linus Torvalds
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40ba587923 |
Merge branch 'akpm' (aka "Andrew's patch-bomb")
Andrew elucidates: - First installmeant of MM. We have a HUGE number of MM patches this time. It's crazy. - MAINTAINERS updates - backlight updates - leds - checkpatch updates - misc ELF stuff - rtc updates - reiserfs - procfs - some misc other bits * akpm: (124 commits) user namespace: make signal.c respect user namespaces workqueue: make alloc_workqueue() take printf fmt and args for name procfs: add hidepid= and gid= mount options procfs: parse mount options procfs: introduce the /proc/<pid>/map_files/ directory procfs: make proc_get_link to use dentry instead of inode signal: add block_sigmask() for adding sigmask to current->blocked sparc: make SA_NOMASK a synonym of SA_NODEFER reiserfs: don't lock root inode searching reiserfs: don't lock journal_init() reiserfs: delay reiserfs lock until journal initialization reiserfs: delete comments referring to the BKL drivers/rtc/interface.c: fix alarm rollover when day or month is out-of-range drivers/rtc/rtc-twl.c: add DT support for RTC inside twl4030/twl6030 drivers/rtc/: remove redundant spi driver bus initialization drivers/rtc/rtc-jz4740.c: make jz4740_rtc_driver static drivers/rtc/rtc-mc13xxx.c: make mc13xxx_rtc_idtable static rtc: convert drivers/rtc/* to use module_platform_driver() drivers/rtc/rtc-wm831x.c: convert to devm_kzalloc() drivers/rtc/rtc-wm831x.c: remove unused period IRQ handler ... |