mirror of https://gitee.com/openkylin/linux.git
16750 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Clement Perrochaud
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a1a8b4594f |
NFC: pn544: i2c: Add DTS Documentation
Describe the properties used by the PN544 NFC controller driver. Signed-off-by: Clément Perrochaud <clement.perrochaud@nxp.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> |
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Linus Torvalds
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09c9b61d5d |
LLVMLinux Patches for v3.15
-----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) iEYEABECAAYFAlNFtEkACgkQuseO5dulBZVcPwCdFWY81hKqQaKHaSPFh9m+n1lt yY0An2VZZGrFSkj162POFy1P2sPpGw5p =LRFZ -----END PGP SIGNATURE----- Merge tag 'llvmlinux-for-v3.15' of git://git.linuxfoundation.org/llvmlinux/kernel Pull llvm patches from Behan Webster: "These are some initial updates to support compiling the kernel with clang. These patches have been through the proper reviews to the best of my ability, and have been soaking in linux-next for a few weeks. These patches by themselves still do not completely allow clang to be used with the kernel code, but lay the foundation for other patches which are still under review. Several other of the LLVMLinux patches have been already added via maintainer trees" * tag 'llvmlinux-for-v3.15' of git://git.linuxfoundation.org/llvmlinux/kernel: x86: LLVMLinux: Fix "incomplete type const struct x86cpu_device_id" x86 kbuild: LLVMLinux: More cc-options added for clang x86, acpi: LLVMLinux: Remove nested functions from Thinkpad ACPI LLVMLinux: Add support for clang to compiler.h and new compiler-clang.h LLVMLinux: Remove warning about returning an uninitialized variable kbuild: LLVMLinux: Fix LINUX_COMPILER definition script for compilation with clang Documentation: LLVMLinux: Update Documentation/dontdiff kbuild: LLVMLinux: Adapt warnings for compilation with clang kbuild: LLVMLinux: Add Kbuild support for building kernel with Clang |
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Linus Torvalds
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5166701b36 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs updates from Al Viro:
"The first vfs pile, with deep apologies for being very late in this
window.
Assorted cleanups and fixes, plus a large preparatory part of iov_iter
work. There's a lot more of that, but it'll probably go into the next
merge window - it *does* shape up nicely, removes a lot of
boilerplate, gets rid of locking inconsistencie between aio_write and
splice_write and I hope to get Kent's direct-io rewrite merged into
the same queue, but some of the stuff after this point is having
(mostly trivial) conflicts with the things already merged into
mainline and with some I want more testing.
This one passes LTP and xfstests without regressions, in addition to
usual beating. BTW, readahead02 in ltp syscalls testsuite has started
giving failures since "mm/readahead.c: fix readahead failure for
memoryless NUMA nodes and limit readahead pages" - might be a false
positive, might be a real regression..."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits)
missing bits of "splice: fix racy pipe->buffers uses"
cifs: fix the race in cifs_writev()
ceph_sync_{,direct_}write: fix an oops on ceph_osdc_new_request() failure
kill generic_file_buffered_write()
ocfs2_file_aio_write(): switch to generic_perform_write()
ceph_aio_write(): switch to generic_perform_write()
xfs_file_buffered_aio_write(): switch to generic_perform_write()
export generic_perform_write(), start getting rid of generic_file_buffer_write()
generic_file_direct_write(): get rid of ppos argument
btrfs_file_aio_write(): get rid of ppos
kill the 5th argument of generic_file_buffered_write()
kill the 4th argument of __generic_file_aio_write()
lustre: don't open-code kernel_recvmsg()
ocfs2: don't open-code kernel_recvmsg()
drbd: don't open-code kernel_recvmsg()
constify blk_rq_map_user_iov() and friends
lustre: switch to kernel_sendmsg()
ocfs2: don't open-code kernel_sendmsg()
take iov_iter stuff to mm/iov_iter.c
process_vm_access: tidy up a bit
...
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Linus Torvalds
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79d2d21ee0 |
spi: Fixes for v3.15
A few driver specific fixes, the main one being the fix for handling of complete callbacks that are open coded in individual drivers to allow callers to omit the completion. As we move things into the core that sort of issue should become less and less common. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJTR8jpAAoJELSic+t+oim9R3YQAJ1SjEGkdZ2T41pASsm1otmW o0mS5j+YSPvW+H7XxOFfGed51Mw+TUKgIrxOutHZOKqYbeqikphbGqOAcRlcmNZ2 H7REdmlYT0EFBd+K2mNDqoOL9c56kxldEzJBXXu9keAJcY358Fl9gOpIz55py+CS ftrf1A6Vvwiyvlk9/AkmR1n+PlRrDP881C1DGK+q4yoHlKbJylqTzkdK/DTO4AgU wSPtK9NAciq6gBjInWwZA83GRioCAk5pvHTyXVn9IcS7g2J7AAtObDg5w8LmZ2GD 1/QS47S6IL5ksdQ464RS6tmQamm422C3KWJuYejJt4UVtlL6QCWeM+baj7HgwbHR /DFs+Zgi2tZABtqo5stOCNl75gr8aOY75M0fc0Hm4OeJlKA5DoxT8aC5mrTT2z+j cF1Ro6v9rHSRm0WE+ZoD3ykyWmjHnoXTNa6Fhy4g8712BdWpEiNnfsTaPvvz7I8w BlKdAoCB2BHPMAzbe2FO/RLsi387rmbDdYP5nSj5iCIKkCMhX2E9XuAnJ1tNhQ+y IsY88DPIr10OXOJht5TPMVY+R+6SJj4yJFRVwJOXjlxJhHcjIBSUSH8v2qp3SEfG sUXR8bacFsE5TRnE2vRx7CsjPUxp3If5X/POmAGURwWOGo3RlUICr9pzbAHyP4xt tOHlGZnutsHv/2ZflCBh =rgeq -----END PGP SIGNATURE----- Merge tag 'spi-v3.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi fixes from Mark Brown: "A few driver specific fixes, the main one being the fix for handling of complete callbacks that are open coded in individual drivers to allow callers to omit the completion. As we move things into the core that sort of issue should become less and less common" * tag 'spi-v3.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: qup: Depend on ARCH_QCOM spi: efm32: Update binding document to make "efm32,location" property optional spi: omap2-mcspi: Convert to use devm_kcalloc spi: Always check complete callback before calling it |
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Linus Torvalds
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eeb91e4f9d |
More ACPI and power management fixes and updates for 3.15-rc1
- Fix for a recently introduced CPU hotplug regression in ARM KVM
from Ming Lei.
- Fixes for breakage in the at32ap, loongson2_cpufreq, and unicore32
cpufreq drivers introduced during the 3.14 cycle (-stable material)
from Chen Gang and Viresh Kumar.
- New powernv cpufreq driver from Vaidyanathan Srinivasan, with bits
from Gautham R Shenoy and Srivatsa S Bhat.
- Exynos cpufreq driver fix preventing it from being included into
multiplatform builds that aren't supported by it from Sachin Kamat.
- cpufreq cleanups related to the usage of the driver_data field in
struct cpufreq_frequency_table from Viresh Kumar.
- cpufreq ppc driver cleanup from Sachin Kamat.
- Intel BayTrail support for intel_idle and ACPI idle from Len Brown.
- Intel CPU model 54 (Atom N2000 series) support for intel_idle from
Jan Kiszka.
- intel_idle fix for Intel Ivy Town residency targets from Len Brown.
- turbostat updates (Intel Broadwell support and output cleanups)
from Len Brown.
- New cpuidle sysfs attribute for exporting C-states' target residency
information to user space from Daniel Lezcano.
- New kernel command line argument to prevent power domains enabled
by the bootloader from being turned off even if they are not in use
(for diagnostics purposes) from Tushar Behera.
- Fixes for wakeup sysfs attributes documentation from Geert Uytterhoeven.
- New ACPI video blacklist entry for ThinkPad Helix from Stephen Chandler
Paul.
- Assorted ACPI cleanups and a Kconfig help update from Jonghwan Choi,
Zhihui Zhang, Hanjun Guo.
/
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Merge tag 'pm+acpi-3.15-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI and power management fixes and updates from Rafael Wysocki:
"This is PM and ACPI material that has emerged over the last two weeks
and one fix for a CPU hotplug regression introduced by the recent CPU
hotplug notifiers registration series.
Included are intel_idle and turbostat updates from Len Brown (these
have been in linux-next for quite some time), a new cpufreq driver for
powernv (that might spend some more time in linux-next, but BenH was
asking me so nicely to push it for 3.15 that I couldn't resist), some
cpufreq fixes and cleanups (including fixes for some silly breakage in
a couple of cpufreq drivers introduced during the 3.14 cycle),
assorted ACPI cleanups, wakeup framework documentation fixes, a new
sysfs attribute for cpuidle and a new command line argument for power
domains diagnostics.
Specifics:
- Fix for a recently introduced CPU hotplug regression in ARM KVM
from Ming Lei.
- Fixes for breakage in the at32ap, loongson2_cpufreq, and unicore32
cpufreq drivers introduced during the 3.14 cycle (-stable material)
from Chen Gang and Viresh Kumar.
- New powernv cpufreq driver from Vaidyanathan Srinivasan, with bits
from Gautham R Shenoy and Srivatsa S Bhat.
- Exynos cpufreq driver fix preventing it from being included into
multiplatform builds that aren't supported by it from Sachin Kamat.
- cpufreq cleanups related to the usage of the driver_data field in
struct cpufreq_frequency_table from Viresh Kumar.
- cpufreq ppc driver cleanup from Sachin Kamat.
- Intel BayTrail support for intel_idle and ACPI idle from Len Brown.
- Intel CPU model 54 (Atom N2000 series) support for intel_idle from
Jan Kiszka.
- intel_idle fix for Intel Ivy Town residency targets from Len Brown.
- turbostat updates (Intel Broadwell support and output cleanups)
from Len Brown.
- New cpuidle sysfs attribute for exporting C-states' target
residency information to user space from Daniel Lezcano.
- New kernel command line argument to prevent power domains enabled
by the bootloader from being turned off even if they are not in use
(for diagnostics purposes) from Tushar Behera.
- Fixes for wakeup sysfs attributes documentation from Geert
Uytterhoeven.
- New ACPI video blacklist entry for ThinkPad Helix from Stephen
Chandler Paul.
- Assorted ACPI cleanups and a Kconfig help update from Jonghwan
Choi, Zhihui Zhang, Hanjun Guo"
* tag 'pm+acpi-3.15-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (28 commits)
ACPI: Update the ACPI spec information in Kconfig
arm, kvm: fix double lock on cpu_add_remove_lock
cpuidle: sysfs: Export target residency information
cpufreq: ppc: Remove duplicate inclusion of fsl_soc.h
cpufreq: create another field .flags in cpufreq_frequency_table
cpufreq: use kzalloc() to allocate memory for cpufreq_frequency_table
cpufreq: don't print value of .driver_data from core
cpufreq: ia64: don't set .driver_data to index
cpufreq: powernv: Select CPUFreq related Kconfig options for powernv
cpufreq: powernv: Use cpufreq_frequency_table.driver_data to store pstate ids
cpufreq: powernv: cpufreq driver for powernv platform
cpufreq: at32ap: don't declare local variable as static
cpufreq: loongson2_cpufreq: don't declare local variable as static
cpufreq: unicore32: fix typo issue for 'clk'
cpufreq: exynos: Disable on multiplatform build
PM / wakeup: Correct presence vs. emptiness of wakeup_* attributes
PM / domains: Add pd_ignore_unused to keep power domains enabled
ACPI / dock: Drop dock_device_ids[] table
ACPI / video: Favor native backlight interface for ThinkPad Helix
ACPI / thermal: Fix wrong variable usage in debug statement
...
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Linus Torvalds
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e7990d45bb |
sound fixes for 3.15-rc1
Here is a bunch of small fixes that have been collected since the previous pull request. In addition to various misc fixes, the following are included: - HD-audio quirks for Dell, HP, Chromebook, and ALC28x codecs - HD-audio AMD HDMI regression fix - Continued PM support/fixes for ice1712 driver - Multiplatform fixes for ASoC samsung drivers - Addition of device id tables to a few ASoC drivers - Bit clock polarity config and error flag fixes in ASoC fsl_sai -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAABAgAGBQJTRra6AAoJEGwxgFQ9KSmkovkP/RCDZfQO733wAJGAtbUeRrrp OaSeM2FJTajttUehTYK3uyCbrM7gOTJasf9icQSGOv+17x0O/EIVc+iBEO6cJc8I sbEQLk3Uq8cO1+geaC9MX6tbdaXu1GtSVL61Eqo2Gm2pDHb95C+6vAEU4tE+CNaj HcznS6uyZ/Sd7RMpw58jstcVt6OOZRw1fabEN6a9RmmbcRjaZ5BT4xUScrRnr3t7 hR9e3mMCGwDmufrso6yhd2uYVqjcVGO8NTdj6fbt4aPRkBS8HxYC0lhvTz6CO1oN VZ75poc6DQgtdVvpi95sBI3DDnkFrV2FwjdZtSQdm4ykF56h51eDDHF9EWbYdomw 7fldHc3iRzg+0OGX2Askl3b4KfePDncWRt0/9XklftBHktyUvVpwLKlZ3nqq6VA5 U2FfKZPuREQUhiKp8s1SXlnXhQ/hQVUMEAwOD1MhcZnIcvKQSCVvYGwdy8rKdt/A GaZofubIP9FYJ0Cu99A5IDoR85h0lNzYuxa2c0lOi+u1w3egHSS7KRsE07XxKsVM HgWUZZ7NAsROletcc6E3Zkmq/kwccCVfWyhRPLLoLEEPuaLwz/XoE+ZhtB0XhKZm PiEiMv2E3OaBMus5sHeXfxjkbnmysvK/3X8fuxkZD5nP9uzex8qPSDlcjC8pWmvW H6x3WSKbn+5Pm0HtSAun =7zfG -----END PGP SIGNATURE----- Merge tag 'sound-fix-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "Here is a bunch of small fixes that have been collected since the previous pull request. In addition to various misc fixes, the following are included: - HD-audio quirks for Dell, HP, Chromebook, and ALC28x codecs - HD-audio AMD HDMI regression fix - Continued PM support/fixes for ice1712 driver - Multiplatform fixes for ASoC samsung drivers - Addition of device id tables to a few ASoC drivers - Bit clock polarity config and error flag fixes in ASoC fsl_sai" * tag 'sound-fix-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (32 commits) ALSA: usb-audio: Suppress repetitive debug messages from retire_playback_urb() ALSA: hda - Make full_reset boolean ALSA: hda - add headset mic detect quirk for a Dell laptop sound: dmasound: use module_platform_driver_probe() ALSA: au1x00: use module_platform_driver() ALSA: hda - Use runtime helper to check active state. ALSA: ice1712: Fix boundary checks in PCM pointer ops ASoC: davinci-mcasp: Fix bit clock polarity settings ASoC: samsung: Fix build on multiplatform ASoC: fsl_sai: Fix Bit Clock Polarity configurations ALSA: hda - Do not assign streams in reverse order ALSA: hda/realtek - Add eapd shutup to ALC283 ALSA: hda/realtek - Change model name alias for ChromeOS ASoC: da732x: Print correct major id ALSA: hda/realtek - Improve HP depop when system change power state on Chromebook ASoC: cs42l52: Fix mask for REVID sound/oss: Remove uncompilable DBG macro use ALSA: ice1712: Save/restore routing and rate registers ALSA: ice1712: restore AK4xxx volumes on resume ASoC: alc56(23|32): fix undefined return value of probing code ... |
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Linus Torvalds
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4162877d3f |
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
Pull LED updates from Bryan Wu: "This cycle we got: - new driver for leds-mc13783 - bug fixes - code cleanup" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds: leds: make sure we unregister a trigger only once leds: leds-pwm: properly clean up after probe failure leds: clevo-mail: Make probe function __init leds-ot200: Fix dependencies leds-gpio: of: introduce MODULE_DEVICE_TABLE for module autoloading leds: clevo-mail: remove __initdata marker leds: leds-ss4200: remove __initdata marker leds: blinkm: remove unnecessary spaces leds: lp5562: remove unnecessary parentheses leds: leds-ss4200: remove DEFINE_PCI_DEVICE_TABLE macro leds: leds-s3c24xx: Trivial cleanup in header file drivers/leds: delete non-required instances of include <linux/init.h> leds: leds-gpio: add retain-state-suspended property leds: leds-mc13783: Add devicetree support leds: leds-mc13783: Remove unnecessary cleaning of registers on exit leds: leds-mc13783: Use proper "max_brightness" value fo LEDs leds: leds-mc13783: Use LED core PM functions leds: leds-mc13783: Add MC34708 LED support leds: Turn off led if blinking is disabled ledtrig-cpu: Handle CPU hot(un)plugging |
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Linus Torvalds
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6c61403a44 |
Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine updates from Vinod Koul: - New driver for Qcom bam dma - New driver for RCAR peri-peri - New driver for FSL eDMA - Various odd fixes and updates thru the subsystem * 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (29 commits) dmaengine: add Qualcomm BAM dma driver shdma: add R-Car Audio DMAC peri peri driver dmaengine: sirf: enable generic dt binding for dma channels dma: omap-dma: Implement device_slave_caps callback dmaengine: qcom_bam_dma: Add device tree binding dma: dw: Add suspend and resume handling for PCI mode DW_DMAC. dma: dw: allocate memory in two stages in probe Add new line to test result strings produced in verbose mode dmaengine: pch_dma: use tasklet_kill in teardown dmaengine: at_hdmac: use tasklet_kill in teardown dma: cppi41: start tear down only if channel is busy usb: musb: musb_cppi41: Dont reprogram DMA if tear down is initiated dmaengine: s3c24xx-dma: make phy->irq signed for error handling dma: imx-dma: Add missing module owner field dma: imx-dma: Replace printk with dev_* dma: fsl-edma: fix static checker warning of NULL dereference dma: Remove comment about embedding dma_slave_config into custom structs dma: mmp_tdma: move to generic device tree binding dma: mmp_pdma: add IRQF_SHARED when request irq dma: edma: Fix memory leak in edma_prep_dma_cyclic() ... |
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Linus Torvalds
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edf2377c47 |
- Call put_device() instead of kfree() - core
- Add DT support - gpio-backlight - Use managed resources - lm3639_bl -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) iQIcBAABAgAGBQJTRTU4AAoJEFGvii+H/HdhAe8QAK9E9DwDMItv0HNCtbEe/FUd SU4cXvZXaBe+Zr0xc7qA4Z71PCdrf7R9UfGay7DikuO47BzQ5idwGSjcSyyg7IJL QHjkjGIRea1JuYMCXcFjBUsnsXBcb4E5masYijcOwuKMewnlwwTteDN8czEkAKN7 aKTEHcTWcJkVl7HcFiKn+QoqXvnPb7EXGCB//dug3jbo/F9xQ3Zn6zpNbc1fm9Ge rgsy0mg4idxqWj0hcnmIvKBFbmzpwwSJHGZfQcpwCB/T4fCf+bHm07DUhub54biA n8/EwFaGkFZ58QjwRcnkcKw2zzTd2OnyB9CtuZY3ByEysknQMEvazZcqaRyoXZIa 09qiFanYD4WblUJtK9ArCc8iiYTstYYzVf42G7Hb4Zb313vJgeisYTPh5PBB5Y1x 9LdF4YCFnGyqbtAHG7P600l++2ogjqpbU/NugqYaSPgugPEjit5zePxepHVehDvY CNkEgfkq0WlkmcTI1CgKqsJphslGkY3KsWgcSadCpf21tLOhtu7r1bNzartVrbR9 THr+I60c4++z0/r/BYEvdnviLUX+nBd1zeH4KQ6aFTJYQ9S/tv/OTGTU2cirDSL6 mq37nd1Ky4tjXGJBZOjJLJAGB5S645YCOlgCQ7lBvMnN2jCawgCrY16FN3JadpOm dizYOK7hDq0WDpmMioKY =qva8 -----END PGP SIGNATURE----- Merge tag 'backlight-for-linus-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight Pull backlight changes from Lee Jones: - core: call put_device() instead of kfree() - gpio-backlight: add DT support - lm3639_bl driver: use managed resources * tag 'backlight-for-linus-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: backlight: lm3639: Use devm_backlight_device_register() backlight: gpio-backlight: Add DT support backlight: core: Replace kfree with put_device |
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Jan-Simon Möller
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8a260796a1 |
Documentation: LLVMLinux: Update Documentation/dontdiff
Clang has a few other kinds of derived files which shouldn't be added to a patch. Add them to the Documentation/dontdiff file to prevent this. Signed-off-by: Jan-Simon Möller <dl9pf@gmx.de> Signed-off-by: Behan Webster <behanw@converseincode.com> Cc: PaX Team <pageexec@freemail.hu> |
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Takashi Iwai
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50487c3a4a |
ASoC: Fixes for v3.15
A smattering of device specific fixes, nothing stands out here except for the multiplatform fixes for Samsung and the device IDs being added by Stephen Warren - there's no real code changes from those and they give better robustness to the enumeration with DT. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJTRVqxAAoJELSic+t+oim9Sy8P/06CSOkwoY0ofxkRiusqFUCY S5lKwRCQrVkMKL7Begjv7L5Dr7xDdjGGl8P36BqysCUUm/hiRHIOwcUtEYdWwmon XgUt+vdjz9qVoVilqfPjF7PDGqqDwspOJljaC/9dIylx6mXYKcpdkFzloiTlBC+x hZb34YEc+BdYB0BHH7jYvkUV3U4UOeJbOYbmXY940y6aFngnP9dIRwEDlyw2QFbO Rpcc+7qmMezALJcKAHBYwv45/08EMZ3OwaZ+4LhUXeeBdP54ZQMJNZiSii4gCAcr hRe6ox9ixDxLQ4x09Gv8XfTRL5BozrjtiK+9hxMi1tAtfej5W0YJ9bccmka1yXWw /z3LmqARGJPUoAfhVA/ip5l3rWJT1QJzL008yBgsPNZIbm7Fo3meCYwvrI9igOW9 qpovx4YZoo2edIxMHZAySBnS0WfOJYfwPmZ1wWbS1e+JBu/rIOk8AMQRzNphQ2W+ YJvIIjajX52vvDoXynaZCAfYfivBYzcuoZllgjyhxNWRj+HC8Wer1Prmv9g5bgHU mWW8g2HnkbYh+TP0oFUANLQrGXRbaVok3kQe2oSoUbFkqovhllI7d9za4+xUjEXo qZkFaTcn/VjH1Gi2uzZiCWQpy41bLXda0JvRUF9UhWPeKG8OEMN5Lc/aistIiCuh Z0crLkK3DmM7Ih0dxm3l =Z3Yl -----END PGP SIGNATURE----- Merge tag 'asoc-v3.15-5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Fixes for v3.15 A smattering of device specific fixes, nothing stands out here except for the multiplatform fixes for Samsung and the device IDs being added by Stephen Warren - there's no real code changes from those and they give better robustness to the enumeration with DT. |
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Linus Torvalds
|
39de65aa2c |
Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
"Here is the pull request from the i2c subsystem. It got a little
delayed because I needed to wait for a dependency to be included
(commit b424080a9e08: "reset: Add optional resets and stubs"). Plus,
I had some email problems. All done now, the highlights are:
- drivers can now deprecate their use of i2c classes. That shouldn't
be used on embedded platforms anyhow and was often blindly
copy&pasted. This mechanism gives users time to switch away and
ultimately boot faster once the use of classes for those drivers is
gone for good.
- new drivers for QUP, Cadence, efm32
- tracepoint support for I2C and SMBus
- bigger cleanups for the mv64xxx, nomadik, and designware drivers
And the usual bugfixes, cleanups, feature additions. Most stuff has
been in linux-next for a while. Just some hot fixes and new drivers
were added a bit more recently."
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (63 commits)
i2c: cadence: fix Kconfig dependency
i2c: Add driver for Cadence I2C controller
i2c: cadence: Document device tree bindings
Documentation: i2c: improve section about flags mangling the protocol
i2c: qup: use proper type fro clk_freq
i2c: qup: off by ones in qup_i2c_probe()
i2c: efm32: fix binding doc
MAINTAINERS: update I2C web resources
i2c: qup: New bus driver for the Qualcomm QUP I2C controller
i2c: qup: Add device tree bindings information
i2c: i2c-xiic: deprecate class based instantiation
i2c: i2c-sirf: deprecate class based instantiation
i2c: i2c-mv64xxx: deprecate class based instantiation
i2c: i2c-designware-platdrv: deprecate class based instantiation
i2c: i2c-davinci: deprecate class based instantiation
i2c: i2c-bcm2835: deprecate class based instantiation
i2c: mv64xxx: Fix reset controller handling
i2c: omap: fix usage of IS_ERR_VALUE with pm_runtime_get_sync
i2c: efm32: new bus driver
i2c: exynos5: remove unnecessary cast of void pointer
...
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Linus Torvalds
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97e18dc007 |
MMC highlights for 3.15:
Core: - CONFIG_MMC_UNSAFE_RESUME=y is now default behavior. - DT bindings for SDHCI UHS, eMMC HS200, high-speed DDR, at 1.8/1.2V. - Add GPIO descriptor based slot-gpio card detect API. Drivers: - dw_mmc: Refactor SOCFPGA support as a variant inside dw_mmc-pltfm.c. - mmci: Support HW busy detection on ux500. - omap: Support MMC_ERASE. - omap_hsmmc: Support MMC_PM_KEEP_POWER, MMC_PM_WAKE_SDIO_IRQ, (a)cmd23. - rtsx: Support pre-req/post-req async. - sdhci: Add support for Realtek RTS5250 controllers. - sdhci-acpi: Add support for 80860F16, fix 80860F14/SDIO card detect. - sdhci-msm: Add new driver for Qualcomm SDHCI chipset support. - sdhci-pxav3: Add support for Marvell Armada 380 and 385 SoCs. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) iQIcBAABAgAGBQJTRLHLAAoJEHNBYZ7TNxYMoqEQAOULXl1SHt0aHn5I0cfdVnRm J3i56MqarwXQOse/qJrg8/uKsggAu0ivTlQ7x1h6bpXmzHqvOtZhSoO9BqGEvxOU WNeA9ouaKMx3gCpIAwl9Odox+d2E+91nRfxU3fZTDITy554fREXmIpWiidjFPR7n 2oHT0yvGuLjunTC8MhxSB0OsggoIDXDTVPxrcf2k+AcAZAMlCMDNirN9+JbhiVM9 PNESapMyQAbFy18BGzCt5lO2o6aRileaSdX4BFTW4lx2LSPryUVV3cnfIH4zlytW joVDWyU5kAtQgfhoEhTsWJld+cwHsMUrl/FOfhMvBWbPMxLJnbFx8b459nKJDM5j NUo29KQxxHgWblGYx+F5SYuTloqWtX5iQWsez9g38Z/3UtjHR++o3+auwTFsZFRe 7EusZqsXdKggx1iiW/5afgb+tFOiCe5WOOQv29YdqWurPhaSK2Nr1aprD4RRiMeT IG9qBLhHFLl8Pv0nTdEGbJHhAhihja6w2ul+i/8JSaDOYAGFbEn47MC8JfrKAnpw WovxkSqMroMhjI+51cwJnVtdczQWx5kpjqDY0VaJlKvOfcwyOuyTU+s2vrHVDMZS a0HgaXeVxr5IcDTz2zo1f6UbM4k2z/Ka0LOOSPqyOYOpFuT6VkXhgOVq6fsRpnaN /9CUirULwF5ej0oz38hk =6S8w -----END PGP SIGNATURE----- Merge tag 'mmc-updates-for-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc Pull MMC updates from Chris Ball: "MMC highlights for 3.15: Core: - CONFIG_MMC_UNSAFE_RESUME=y is now default behavior - DT bindings for SDHCI UHS, eMMC HS200, high-speed DDR, at 1.8/1.2V - Add GPIO descriptor based slot-gpio card detect API Drivers: - dw_mmc: Refactor SOCFPGA support as a variant inside dw_mmc-pltfm.c - mmci: Support HW busy detection on ux500 - omap: Support MMC_ERASE - omap_hsmmc: Support MMC_PM_KEEP_POWER, MMC_PM_WAKE_SDIO_IRQ, (a)cmd23 - rtsx: Support pre-req/post-req async - sdhci: Add support for Realtek RTS5250 controllers - sdhci-acpi: Add support for 80860F16, fix 80860F14/SDIO card detect - sdhci-msm: Add new driver for Qualcomm SDHCI chipset support - sdhci-pxav3: Add support for Marvell Armada 380 and 385 SoCs" * tag 'mmc-updates-for-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (102 commits) mmc: sdhci-acpi: Intel SDIO has broken card detect mmc: sdhci-pxav3: add support for the Armada 38x SDHCI controller mmc: sdhci-msm: Add platform_execute_tuning implementation mmc: sdhci-msm: Initial support for Qualcomm chipsets mmc: sdhci-msm: Qualcomm SDHCI binding documentation sdhci: only reprogram retuning timer when flag is set mmc: rename ARCH_BCM to ARCH_BCM_MOBILE mmc: sdhci: Allow for irq being shared mmc: sdhci-acpi: Add device id 80860F16 mmc: sdhci-acpi: Fix broken card detect for ACPI HID 80860F14 mmc: slot-gpio: Add GPIO descriptor based CD GPIO API mmc: slot-gpio: Split out CD IRQ request into a separate function mmc: slot-gpio: Record GPIO descriptors instead of GPIO numbers Revert "dts: socfpga: Add support for SD/MMC on the SOCFPGA platform" mmc: sdhci-spear: use generic card detection gpio support mmc: sdhci-spear: remove support for power gpio mmc: sdhci-spear: simplify resource handling mmc: sdhci-spear: fix platform_data usage mmc: sdhci-spear: fix error handling paths for DT mmc: sdhci-bcm-kona: fix build errors when built-in ... |
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Linus Torvalds
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e4f30545a2 |
- Documentation clarification on CPU topology and booting requirements
- Additional cache flushing during boot (needed in the presence of
external caches or under virtualisation)
- DMA range invalidation fix for non cache line aligned buffers
- Build failure fix with !COMPAT
- Kconfig update for STRICT_DEVMEM
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull second set of arm64 updates from Catalin Marinas:
"A second pull request for this merging window, mainly with fixes and
docs clarification:
- Documentation clarification on CPU topology and booting
requirements
- Additional cache flushing during boot (needed in the presence of
external caches or under virtualisation)
- DMA range invalidation fix for non cache line aligned buffers
- Build failure fix with !COMPAT
- Kconfig update for STRICT_DEVMEM"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Fix DMA range invalidation for cache line unaligned buffers
arm64: Add missing Kconfig for CONFIG_STRICT_DEVMEM
arm64: fix !CONFIG_COMPAT build failures
Revert "arm64: virt: ensure visibility of __boot_cpu_mode"
arm64: Relax the kernel cache requirements for boot
arm64: Update the TCR_EL1 translation granule definitions for 16K pages
ARM: topology: Make it clear that all CPUs need to be described
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Linus Torvalds
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e9f37d3a8d |
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie:
"Highlights:
- drm:
Generic display port aux features, primary plane support, drm
master management fixes, logging cleanups, enforced locking checks
(instead of docs), documentation improvements, minor number
handling cleanup, pseudofs for shared inodes.
- ttm:
add ability to allocate from both ends
- i915:
broadwell features, power domain and runtime pm, per-process
address space infrastructure (not enabled)
- msm:
power management, hdmi audio support
- nouveau:
ongoing GPU fault recovery, initial maxwell support, random fixes
- exynos:
refactored driver to clean up a lot of abstraction, DP support
moved into drm, LVDS bridge support added, parallel panel support
- gma500:
SGX MMU support, SGX irq handling, asle irq work fixes
- radeon:
video engine bringup, ring handling fixes, use dp aux helpers
- vmwgfx:
add rendernode support"
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (849 commits)
DRM: armada: fix corruption while loading cursors
drm/dp_helper: don't return EPROTO for defers (v2)
drm/bridge: export ptn3460_init function
drm/exynos: remove MODULE_DEVICE_TABLE definitions
ARM: dts: exynos4412-trats2: enable exynos/fimd node
ARM: dts: exynos4210-trats: enable exynos/fimd node
ARM: dts: exynos4412-trats2: add panel node
ARM: dts: exynos4210-trats: add panel node
ARM: dts: exynos4: add MIPI DSI Master node
drm/panel: add S6E8AA0 driver
ARM: dts: exynos4210-universal_c210: add proper panel node
drm/panel: add ld9040 driver
panel/ld9040: add DT bindings
panel/s6e8aa0: add DT bindings
drm/exynos: add DSIM driver
exynos/dsim: add DT bindings
drm/exynos: disallow fbdev initialization if no device is connected
drm/mipi_dsi: create dsi devices only for nodes with reg property
drm/mipi_dsi: add flags to DSI messages
Skip intel_crt_init for Dell XPS 8700
...
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Denis Carikli
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9a6adb339e |
backlight: gpio-backlight: Add DT support
Signed-off-by: Denis Carikli <denis@eukrea.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> |
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Rafael J. Wysocki
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62d6f06cd5 |
Merge branches 'pm-wakeup' and 'pm-domains'
* pm-wakeup: PM / wakeup: Correct presence vs. emptiness of wakeup_* attributes * pm-domains: PM / domains: Add pd_ignore_unused to keep power domains enabled |
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Linus Torvalds
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b003d7706a |
Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull kbuild changes from Michal Marek: - cleanups in the main Makefiles and Documentation/DocBook/Makefile - make O=... directory is automatically created if needed - mrproper/distclean removes the old include/linux/version.h to make life easier when bisecting across the commit that moved the version.h file * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: kbuild: docbook: fix the include error when executing "make help" kbuild: create a build directory automatically for out-of-tree build kbuild: remove redundant '.*.cmd' pattern from make distclean kbuild: move "quote" to Kbuild.include to be consistent kbuild: docbook: use $(obj) and $(src) rather than specific path kbuild: unconditionally clobber include/linux/version.h on distclean kbuild: docbook: specify KERNELDOC dependency correctly kbuild: docbook: include cmd files more simply kbuild: specify build_docproc as a phony target |
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Linus Torvalds
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26c12d9334 |
Merge branch 'akpm' (incoming from Andrew)
Merge second patch-bomb from Andrew Morton: - the rest of MM - zram updates - zswap updates - exit - procfs - exec - wait - crash dump - lib/idr - rapidio - adfs, affs, bfs, ufs - cris - Kconfig things - initramfs - small amount of IPC material - percpu enhancements - early ioremap support - various other misc things * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (156 commits) MAINTAINERS: update Intel C600 SAS driver maintainers fs/ufs: remove unused ufs_super_block_third pointer fs/ufs: remove unused ufs_super_block_second pointer fs/ufs: remove unused ufs_super_block_first pointer fs/ufs/super.c: add __init to init_inodecache() doc/kernel-parameters.txt: add early_ioremap_debug arm64: add early_ioremap support arm64: initialize pgprot info earlier in boot x86: use generic early_ioremap mm: create generic early_ioremap() support x86/mm: sparse warning fix for early_memremap lglock: map to spinlock when !CONFIG_SMP percpu: add preemption checks to __this_cpu ops vmstat: use raw_cpu_ops to avoid false positives on preemption checks slub: use raw_cpu_inc for incrementing statistics net: replace __this_cpu_inc in route.c with raw_cpu_inc modules: use raw_cpu_write for initialization of per cpu refcount. mm: use raw_cpu ops for determining current NUMA node percpu: add raw_cpu_ops slub: fix leak of 'name' in sysfs_slab_add ... |
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Mark Salter
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56aeeba8c1 |
doc/kernel-parameters.txt: add early_ioremap_debug
Add description of early_ioremap_debug kernel parameter. Signed-off-by: Mark Salter <msalter@redhat.com> Cc: Borislav Petkov <borislav.petkov@amd.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dave Young <dyoung@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mark Salter
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bf4b558eba |
arm64: add early_ioremap support
Add support for early IO or memory mappings which are needed before the normal ioremap() is usable. This also adds fixmap support for permanent fixed mappings such as that used by the earlyprintk device register region. Signed-off-by: Mark Salter <msalter@redhat.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Borislav Petkov <borislav.petkov@amd.com> Cc: Dave Young <dyoung@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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David Howells
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9566328578 |
asm/system.h: clean asm/system.h from docs
Clean asm/system.h from docs as nothing should refer to that header anymore. Signed-off-by: David Howells <dhowells@redhat.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Josh Triplett
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5d2acfc7b9 |
kconfig: make allnoconfig disable options behind EMBEDDED and EXPERT
"make allnoconfig" exists to ease testing of minimal configurations. Documentation/SubmitChecklist includes a note to test with allnoconfig. This helps catch missing dependencies on common-but-not-required functionality, which might otherwise go unnoticed. However, allnoconfig still leaves many symbols enabled, because they're hidden behind CONFIG_EMBEDDED or CONFIG_EXPERT. For instance, allnoconfig still has CONFIG_PRINTK and CONFIG_BLOCK enabled, so drivers don't typically get build-tested with those disabled. To address this, introduce a new Kconfig option "allnoconfig_y", used on symbols which only exist to hide other symbols. Set it on CONFIG_EMBEDDED (which then selects CONFIG_EXPERT). allnoconfig will then disable all the symbols hidden behind those. Signed-off-by: Josh Triplett <josh@joshtriplett.org> Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Fabian Frederick
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8ca577223f |
affs: add mount option to avoid filename truncates
Normal behavior for filenames exceeding specific filesystem limits is to refuse operation. AFFS standard name length being only 30 characters against 255 for usual Linux filesystems, original implementation does filename truncate by default with a define value AFFS_NO_TRUNCATE which can be enabled but needs module compilation. This patch adds 'nofilenametruncate' mount option so that user can easily activate that feature and avoid a lot of problems (eg overwrite files ...) Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Liu Hua
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80df284765 |
hung_task: check the value of "sysctl_hung_task_timeout_sec"
As sysctl_hung_task_timeout_sec is unsigned long, when this value is larger then LONG_MAX/HZ, the function schedule_timeout_interruptible in watchdog will return immediately without sleep and with print : schedule_timeout: wrong timeout value ffffffffffffff83 and then the funtion watchdog will call schedule_timeout_interruptible again and again. The screen will be filled with "schedule_timeout: wrong timeout value ffffffffffffff83" This patch does some check and correction in sysctl, to let the function schedule_timeout_interruptible allways get the valid parameter. Signed-off-by: Liu Hua <sdu.liu@huawei.com> Tested-by: Satoru Takeuchi <satoru.takeuchi@gmail.com> Cc: <stable@vger.kernel.org> [3.4+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Alexandre Bounine
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2aaf308b95 |
rapidio: rework device hierarchy and introduce mport class of devices
This patch removes an artificial RapidIO bus root device and establishes actual device hierarchy by providing reference to real parent devices. It also introduces device class for RapidIO controller devices (on-chip or an eternal bridge, known as "mport"). Existing implementation was sufficient for SoC-based platforms that have a single RapidIO controller. With introduction of devices using multiple RapidIO controllers and PCIe-to-RapidIO bridges the old scheme is very limiting or does not work at all. The implemented changes allow to properly reference platform's local RapidIO mport devices and provide device details needed for upper layers. This change to RapidIO device hierarchy does not break any known existing kernel or user space interfaces. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com> Cc: Stef van Os <stef.van.os@prodrive-technologies.com> Cc: Jerry Jacobs <jerry.jacobs@prodrive-technologies.com> Cc: Arno Tiemersma <arno.tiemersma@prodrive-technologies.com> Cc: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Andrey Vagin
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49d063cb35 |
proc: show mnt_id in /proc/pid/fdinfo
Currently we don't have a way how to determing from which mount point file has been opened. This information is required for proper dumping and restoring file descriptos due to presence of mount namespaces. It's possible, that two file descriptors are opened using the same paths, but one fd references mount point from one namespace while the other fd -- from other namespace. $ ls -l /proc/1/fd/1 lrwx------ 1 root root 64 Mar 19 23:54 /proc/1/fd/1 -> /dev/null $ cat /proc/1/fdinfo/1 pos: 0 flags: 0100002 mnt_id: 16 $ cat /proc/1/mountinfo | grep ^16 16 32 0:4 / /dev rw,nosuid shared:2 - devtmpfs devtmpfs rw,size=1013356k,nr_inodes=253339,mode=755 Signed-off-by: Andrey Vagin <avagin@openvz.org> Acked-by: Pavel Emelyanov <xemul@parallels.com> Acked-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Rob Landley <rob@landley.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Oleg Nesterov <oleg@redhat.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Minchan Kim
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60a726e333 |
zram: propagate error to user
When we initialized zcomp with single, we couldn't change max_comp_streams without zram reset but current interface doesn't show any error to user and even it changes max_comp_streams's value without any effect so it would make user very confusing. This patch prevents max_comp_streams's change when zcomp was initialized as single zcomp and emit the error to user(ex, echo). [akpm@linux-foundation.org: don't return with the lock held, per Sergey] [fengguang.wu@intel.com: fix coccinelle warnings] Signed-off-by: Minchan Kim <minchan@kernel.org> Cc: Nitin Gupta <ngupta@vflare.org> Cc: Jerome Marchand <jmarchan@redhat.com> Acked-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Sergey Senozhatsky
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e46b8a030d |
zram: make compression algorithm selection possible
Add and document `comp_algorithm' device attribute. This attribute allows to show supported compression and currently selected compression algorithms: cat /sys/block/zram0/comp_algorithm [lzo] lz4 and change selected compression algorithm: echo lzo > /sys/block/zram0/comp_algorithm Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Acked-by: Minchan Kim <minchan@kernel.org> Cc: Jerome Marchand <jmarchan@redhat.com> Cc: Nitin Gupta <ngupta@vflare.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Sergey Senozhatsky
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beca3ec71f |
zram: add multi stream functionality
Existing zram (zcomp) implementation has only one compression stream (buffer and algorithm private part), so in order to prevent data corruption only one write (compress operation) can use this compression stream, forcing all concurrent write operations to wait for stream lock to be released. This patch changes zcomp to keep a compression streams list of user-defined size (via sysfs device attr). Each write operation still exclusively holds compression stream, the difference is that we can have N write operations (depending on size of streams list) executing in parallel. See TEST section later in commit message for performance data. Introduce struct zcomp_strm_multi and a set of functions to manage zcomp_strm stream access. zcomp_strm_multi has a list of idle zcomp_strm structs, spinlock to protect idle list and wait queue, making it possible to perform parallel compressions. The following set of functions added: - zcomp_strm_multi_find()/zcomp_strm_multi_release() find and release a compression stream, implement required locking - zcomp_strm_multi_create()/zcomp_strm_multi_destroy() create and destroy zcomp_strm_multi zcomp ->strm_find() and ->strm_release() callbacks are set during initialisation to zcomp_strm_multi_find()/zcomp_strm_multi_release() correspondingly. Each time zcomp issues a zcomp_strm_multi_find() call, the following set of operations performed: - spin lock strm_lock - if idle list is not empty, remove zcomp_strm from idle list, spin unlock and return zcomp stream pointer to caller - if idle list is empty, current adds itself to wait queue. it will be awaken by zcomp_strm_multi_release() caller. zcomp_strm_multi_release(): - spin lock strm_lock - add zcomp stream to idle list - spin unlock, wake up sleeper Minchan Kim reported that spinlock-based locking scheme has demonstrated a severe perfomance regression for single compression stream case, comparing to mutex-based (see https://lkml.org/lkml/2014/2/18/16) base spinlock mutex ==Initial write ==Initial write ==Initial write records: 5 records: 5 records: 5 avg: 1642424.35 avg: 699610.40 avg: 1655583.71 std: 39890.95(2.43%) std: 232014.19(33.16%) std: 52293.96 max: 1690170.94 max: 1163473.45 max: 1697164.75 min: 1568669.52 min: 573429.88 min: 1553410.23 ==Rewrite ==Rewrite ==Rewrite records: 5 records: 5 records: 5 avg: 1611775.39 avg: 501406.64 avg: 1684419.11 std: 17144.58(1.06%) std: 15354.41(3.06%) std: 18367.42 max: 1641800.95 max: 531356.78 max: 1706445.84 min: 1593515.27 min: 488817.78 min: 1655335.73 When only one compression stream available, mutex with spin on owner tends to perform much better than frequent wait_event()/wake_up(). This is why single stream implemented as a special case with mutex locking. Introduce and document zram device attribute max_comp_streams. This attr shows and stores current zcomp's max number of zcomp streams (max_strm). Extend zcomp's zcomp_create() with `max_strm' parameter. `max_strm' limits the number of zcomp_strm structs in compression backend's idle list (max_comp_streams). max_comp_streams used during initialisation as follows: -- passing to zcomp_create() max_strm equals to 1 will initialise zcomp using single compression stream zcomp_strm_single (mutex-based locking). -- passing to zcomp_create() max_strm greater than 1 will initialise zcomp using multi compression stream zcomp_strm_multi (spinlock-based locking). default max_comp_streams value is 1, meaning that zram with single stream will be initialised. Later patch will introduce configuration knob to change max_comp_streams on already initialised and used zcomp. TEST iozone -t 3 -R -r 16K -s 60M -I +Z test base 1 strm (mutex) 3 strm (spinlock) ----------------------------------------------------------------------- Initial write 589286.78 583518.39 718011.05 Rewrite 604837.97 596776.38 1515125.72 Random write 584120.11 595714.58 1388850.25 Pwrite 535731.17 541117.38 739295.27 Fwrite 1418083.88 1478612.72 1484927.06 Usage example: set max_comp_streams to 4 echo 4 > /sys/block/zram0/max_comp_streams show current max_comp_streams (default value is 1). cat /sys/block/zram0/max_comp_streams Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Acked-by: Minchan Kim <minchan@kernel.org> Cc: Jerome Marchand <jmarchan@redhat.com> Cc: Nitin Gupta <ngupta@vflare.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Sergey Senozhatsky
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8dd1d3247e |
zram: document failed_reads, failed_writes stats
Document `failed_reads' and `failed_writes' device attributes. Remove info about `discard' - there is no such zram attr. Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Jerome Marchand <jmarchan@redhat.com> Cc: Nitin Gupta <ngupta@vflare.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Sergey Senozhatsky
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e64cd51d2f |
zram: move zram size warning to documentation
Move zram warning about disksize and size of memory correlation to zram documentation. Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Acked-by: Minchan Kim <minchan@kernel.org> Cc: Jerome Marchand <jmarchan@redhat.com> Cc: Nitin Gupta <ngupta@vflare.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Michal Hocko
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d715ae08f2 |
memcg: rename high level charging functions
mem_cgroup_newpage_charge is used only for charging anonymous memory so it is better to rename it to mem_cgroup_charge_anon. mem_cgroup_cache_charge is used for file backed memory so rename it to mem_cgroup_charge_file. Signed-off-by: Michal Hocko <mhocko@suse.cz> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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David Rientjes
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539a13b47e |
res_counter: remove interface for locked charging and uncharging
The res_counter_{charge,uncharge}_locked() variants are not used in the
kernel outside of the resource counter code itself, so remove the
interface.
Signed-off-by: David Rientjes <rientjes@google.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Jianguo Wu <wujianguo@huawei.com>
Cc: Tim Hockin <thockin@google.com>
Cc: Christoph Lameter <cl@linux.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Kirill A. Shutemov
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8c6e50b029 |
mm: introduce vm_ops->map_pages()
Here's new version of faultaround patchset. It took a while to tune it and collect performance data. First patch adds new callback ->map_pages to vm_operations_struct. ->map_pages() is called when VM asks to map easy accessible pages. Filesystem should find and map pages associated with offsets from "pgoff" till "max_pgoff". ->map_pages() is called with page table locked and must not block. If it's not possible to reach a page without blocking, filesystem should skip it. Filesystem should use do_set_pte() to setup page table entry. Pointer to entry associated with offset "pgoff" is passed in "pte" field in vm_fault structure. Pointers to entries for other offsets should be calculated relative to "pte". Currently VM use ->map_pages only on read page fault path. We try to map FAULT_AROUND_PAGES a time. FAULT_AROUND_PAGES is 16 for now. Performance data for different FAULT_AROUND_ORDER is below. TODO: - implement ->map_pages() for shmem/tmpfs; - modify get_user_pages() to be able to use ->map_pages() and implement mmap(MAP_POPULATE|MAP_NONBLOCK) on top. ========================================================================= Tested on 4-socket machine (120 threads) with 128GiB of RAM. Few real-world workloads. The sweet spot for FAULT_AROUND_ORDER here is somewhere between 3 and 5. Let's say 4 :) Linux build (make -j60) FAULT_AROUND_ORDER Baseline 1 3 4 5 7 9 minor-faults 283,301,572 247,151,987 212,215,789 204,772,882 199,568,944 194,703,779 193,381,485 time, seconds 151.227629483 153.920996480 151.356125472 150.863792049 150.879207877 151.150764954 151.450962358 Linux rebuild (make -j60) FAULT_AROUND_ORDER Baseline 1 3 4 5 7 9 minor-faults 5,396,854 4,148,444 2,855,286 2,577,282 2,361,957 2,169,573 2,112,643 time, seconds 27.404543757 27.559725591 27.030057426 26.855045126 26.678618635 26.974523490 26.761320095 Git test suite (make -j60 test) FAULT_AROUND_ORDER Baseline 1 3 4 5 7 9 minor-faults 129,591,823 99,200,751 66,106,718 57,606,410 51,510,808 45,776,813 44,085,515 time, seconds 66.087215026 64.784546905 64.401156567 65.282708668 66.034016829 66.793780811 67.237810413 Two synthetic tests: access every word in file in sequential/random order. It doesn't improve much after FAULT_AROUND_ORDER == 4. Sequential access 16GiB file FAULT_AROUND_ORDER Baseline 1 3 4 5 7 9 1 thread minor-faults 4,195,437 2,098,275 525,068 262,251 131,170 32,856 8,282 time, seconds 7.250461742 6.461711074 5.493859139 5.488488147 5.707213983 5.898510832 5.109232856 8 threads minor-faults 33,557,540 16,892,728 4,515,848 2,366,999 1,423,382 442,732 142,339 time, seconds 16.649304881 9.312555263 6.612490639 6.394316732 6.669827501 6.75078944 6.371900528 32 threads minor-faults 134,228,222 67,526,810 17,725,386 9,716,537 4,763,731 1,668,921 537,200 time, seconds 49.164430543 29.712060103 12.938649729 10.175151004 11.840094583 9.594081325 9.928461797 60 threads minor-faults 251,687,988 126,146,952 32,919,406 18,208,804 10,458,947 2,733,907 928,217 time, seconds 86.260656897 49.626551828 22.335007632 17.608243696 16.523119035 16.339489186 16.326390902 120 threads minor-faults 503,352,863 252,939,677 67,039,168 35,191,827 19,170,091 4,688,357 1,471,862 time, seconds 124.589206333 79.757867787 39.508707872 32.167281632 29.972989292 28.729834575 28.042251622 Random access 1GiB file 1 thread minor-faults 262,636 132,743 34,369 17,299 8,527 3,451 1,222 time, seconds 15.351890914 16.613802482 16.569227308 15.179220992 16.557356122 16.578247824 15.365266994 8 threads minor-faults 2,098,948 1,061,871 273,690 154,501 87,110 25,663 7,384 time, seconds 15.040026343 15.096933500 14.474757288 14.289129964 14.411537468 14.296316837 14.395635804 32 threads minor-faults 8,390,734 4,231,023 1,054,432 528,847 269,242 97,746 26,881 time, seconds 20.430433109 21.585235358 22.115062928 14.872878951 14.880856305 14.883370649 14.821261690 60 threads minor-faults 15,733,258 7,892,809 1,973,393 988,266 594,789 164,994 51,691 time, seconds 26.577302548 25.692397770 18.728863715 20.153026398 21.619101933 17.745086260 17.613215273 120 threads minor-faults 31,471,111 15,816,616 3,959,209 1,978,685 1,008,299 264,635 96,010 time, seconds 41.835322703 40.459786095 36.085306105 35.313894834 35.814445675 36.552633793 34.289210594 Touch only one page in page table in 16GiB file FAULT_AROUND_ORDER Baseline 1 3 4 5 7 9 1 thread minor-faults 8,372 8,324 8,270 8,260 8,249 8,239 8,237 time, seconds 0.039892712 0.045369149 0.051846126 0.063681685 0.079095975 0.17652406 0.541213386 8 threads minor-faults 65,731 65,681 65,628 65,620 65,608 65,599 65,596 time, seconds 0.124159196 0.488600638 0.156854426 0.191901957 0.242631486 0.543569456 1.677303984 32 threads minor-faults 262,388 262,341 262,285 262,276 262,266 262,257 263,183 time, seconds 0.452421421 0.488600638 0.565020946 0.648229739 0.789850823 1.651584361 5.000361559 60 threads minor-faults 491,822 491,792 491,723 491,711 491,701 491,691 491,825 time, seconds 0.763288616 0.869620515 0.980727360 1.161732354 1.466915814 3.04041448 9.308612938 120 threads minor-faults 983,466 983,655 983,366 983,372 983,363 984,083 984,164 time, seconds 1.595846553 1.667902182 2.008959376 2.425380942 2.941368804 5.977807890 18.401846125 This patch (of 2): Introduce new vm_ops callback ->map_pages() and uses it for mapping easy accessible pages around fault address. On read page fault, if filesystem provides ->map_pages(), we try to map up to FAULT_AROUND_PAGES pages around page fault address in hope to reduce number of minor page faults. We call ->map_pages first and use ->fault() as fallback if page by the offset is not ready to be mapped (cold page cache or something). Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mel Gorman <mgorman@suse.de> Cc: Rik van Riel <riel@redhat.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Matthew Wilcox <matthew.r.wilcox@intel.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Dave Chinner <david@fromorbit.com> Cc: Ning Qu <quning@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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467a9e1633 |
CPU hotplug notifiers registration fixes for 3.15-rc1
The purpose of this single series of commits from Srivatsa S Bhat (with a small piece from Gautham R Shenoy) touching multiple subsystems that use CPU hotplug notifiers is to provide a way to register them that will not lead to deadlocks with CPU online/offline operations as described in the changelog of commit |
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Arnd Bergmann
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b8780c363d |
sched: remove sleep_on() and friends
This is the final piece in the puzzle, as all patches to remove the last users of \(interruptible_\|\)sleep_on\(_timeout\|\) have made it into the 3.15 merge window. The work was long overdue, and this interface in particular should not have survived the BKL removal that was done a couple of years ago. Citing Jon Corbet from http://lwn.net/2001/0201/kernel.php3": "[...] it was suggested that the janitors look for and fix all code that calls sleep_on() [...] since (1) almost all such code is incorrect, and (2) Linus has agreed that those functions should be removed in the 2.5 development series". We haven't quite made it for 2.5, but maybe we can merge this for 3.15. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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3021112598 |
f2fs updates for v3.15
This patch-set includes the following major enhancement patches.
o introduce large directory support
o introduce f2fs_issue_flush to merge redundant flush commands
o merge write IOs as much as possible aligned to the segment
o add sysfs entries to tune the f2fs configuration
o use radix_tree for the free_nid_list to reduce in-memory operations
o remove costly bit operations in f2fs_find_entry
o enhance the readahead flow for CP/NAT/SIT/SSA blocks
The other bug fixes are as follows.
o recover xattr node blocks correctly after sudden-power-cut
o fix to calculate the maximum number of node ids
o enhance to handle many error cases
And, there are a bunch of cleanups.
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Merge tag 'for-f2fs-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"This patch-set includes the following major enhancement patches.
- introduce large directory support
- introduce f2fs_issue_flush to merge redundant flush commands
- merge write IOs as much as possible aligned to the segment
- add sysfs entries to tune the f2fs configuration
- use radix_tree for the free_nid_list to reduce in-memory operations
- remove costly bit operations in f2fs_find_entry
- enhance the readahead flow for CP/NAT/SIT/SSA blocks
The other bug fixes are as follows:
- recover xattr node blocks correctly after sudden-power-cut
- fix to calculate the maximum number of node ids
- enhance to handle many error cases
And, there are a bunch of cleanups"
* tag 'for-f2fs-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (62 commits)
f2fs: fix wrong statistics of inline data
f2fs: check the acl's validity before setting
f2fs: introduce f2fs_issue_flush to avoid redundant flush issue
f2fs: fix to cover io->bio with io_rwsem
f2fs: fix error path when fail to read inline data
f2fs: use list_for_each_entry{_safe} for simplyfying code
f2fs: avoid free slab cache under spinlock
f2fs: avoid unneeded lookup when xattr name length is too long
f2fs: avoid unnecessary bio submit when wait page writeback
f2fs: return -EIO when node id is not matched
f2fs: avoid RECLAIM_FS-ON-W warning
f2fs: skip unnecessary node writes during fsync
f2fs: introduce fi->i_sem to protect fi's info
f2fs: change reclaim rate in percentage
f2fs: add missing documentation for dir_level
f2fs: remove unnecessary threshold
f2fs: throttle the memory footprint with a sysfs entry
f2fs: avoid to drop nat entries due to the negative nr_shrink
f2fs: call f2fs_wait_on_page_writeback instead of native function
f2fs: introduce nr_pages_to_write for segment alignment
...
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Linus Torvalds
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0af9fb6391 |
fbdev changes for 3.15 (OMAP)
This contains OMAP related fbdev changes for 3.15. The bulk of the patches are
for adding Device Tree support for OMAP Display Subsystem:
* SoCs: OMAP2/3/4
* Boards: OMAP4 Panda, OMAP4 SDP, OMAP3 Beagle, OMAP3 Beagle-xM, OMAP3
IGEP0020, OMAP3 N900
* Devices: TFP410 Encoder, tpd12s015 HDMI companion chip, Sony acx565akm panel,
MIPI DSI Command mode panel and HDMI, DVI and Analog TV connectors
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Merge tag 'fbdev-omap-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux
Pull OMAP fbdev changes from Tomi Valkeinen:
"This is based on the already pulled fbdev-main changes, and this also
merges .dts branch from Tony Lindgren (which has also been pulled), so
that I was able to add the display related .dts changes.
This contains OMAP related fbdev changes for 3.15. The bulk of the
patches are for adding Device Tree support for OMAP Display Subsystem:
- SoCs: OMAP2/3/4
- Boards: OMAP4 Panda, OMAP4 SDP, OMAP3 Beagle, OMAP3 Beagle-xM,
OMAP3 IGEP0020, OMAP3 N900
- Devices: TFP410 Encoder, tpd12s015 HDMI companion chip, Sony
acx565akm panel, MIPI DSI Command mode panel and HDMI, DVI and
Analog TV connectors"
* tag 'fbdev-omap-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (45 commits)
OMAPDSS: HDMI: fix interlace output
OMAPDSS: add missing __init for dss_init_ports
ARM: OMAP2+: remove pdata quirks for displays
OMAPDSS: remove DT hacks for regulators
Doc/DT: Add DT binding documentation for tpd12s015 encoder
Doc/DT: Add DT binding documentation for TFP410 encoder
Doc/DT: Add DT binding documentation for Sony acx565akm panel
Doc/DT: Add DT binding documentation for MIPI DSI CM Panel
Doc/DT: Add DT binding documentation for HDMI Connector
Doc/DT: Add DT binding documentation for DVI Connector
Doc/DT: Add DT binding documentation for Analog TV Connector
ARM: omap3-n900.dts: add display information
ARM: omap3-igep0020.dts: add display information
ARM: omap3-beagle-xm.dts: add display information
ARM: omap3-beagle.dts: add display information
ARM: omap4-sdp.dts: add display information
Doc/DT: Add DT binding documentation for OMAP DSS
OMAPDSS: acx565akm: Add DT support
OMAPDSS: connector-analog-tv: Add DT support
OMAPDSS: hdmi-connector: Add DT support
...
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Linus Torvalds
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e5744abb2f |
== Changes to existing drivers ==
- Use of managed resources - omap, twl4030, ti_am335x_tscadc
- Advanced error handling - omap
- Rework clk management - omap
- Device Tree (re-)work - tc3589x, pm8921, da9055, sec
- IRC management overhaul and !BROKEN - pm8921
- Convert to regmap - ssbi, pm8921
- Use simple power-management ops - ucb1x00
- Include file clean-up - adp5520, cs5535, janz, lpc_ich,
- lpc_sch, max14577, mcp-sa11x0, pcf50633-adc, rc5t583,
rdc321x-southbridge, retu, smsc-ece1099, ti-ssp, ti_am335x_tscadc,
tps65912, vexpress-config, wm8350, ywm8350
- Various bug fixes across the subsystem
- NULL/invalid pointer dereference prevention
- Resource leak mitigation,
- Variable used initialised
- Staticise various containers
- Enforce return value checks
== New drivers/supported devices ==
- Add support for s2mps14 and s2mpa01 to sec
- Add support for da9063 (v5) to da9063
- Add support for atom-c2000 to gpio-ich
- Add support for come-{mbt10,cbt6,chl6} to kempld
- Add support for da9053 to da9052
- Add support for itco-wdt (v3) and baytrail to lpc_ich
- Add new drivers for tps65218, rtsx_usb, bcm590xx
== (Re-)moved drivers ==
- twl4030 ==> drivers/iio
- ti-ssp ==> /dev/null
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Merge tag 'mfd-for-linus-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"Changes to existing drivers:
- Use of managed resources - omap, twl4030, ti_am335x_tscadc
- Advanced error handling - omap
- Rework clk management - omap
- Device Tree (re-)work - tc3589x, pm8921, da9055, sec
- IRC management overhaul and !BROKEN - pm8921
- Convert to regmap - ssbi, pm8921
- Use simple power-management ops - ucb1x00
- Include file clean-up - adp5520, cs5535, janz, lpc_ich,
- lpc_sch, max14577, mcp-sa11x0, pcf50633-adc, rc5t583,
rdc321x-southbridge, retu, smsc-ece1099, ti-ssp, ti_am335x_tscadc,
tps65912, vexpress-config, wm8350, ywm8350
- Various bug fixes across the subsystem
- NULL/invalid pointer dereference prevention
- Resource leak mitigation,
- Variable used initialised
- Staticise various containers
- Enforce return value checks
New drivers/supported devices:
- Add support for s2mps14 and s2mpa01 to sec
- Add support for da9063 (v5) to da9063
- Add support for atom-c2000 to gpio-ich
- Add support for come-{mbt10,cbt6,chl6} to kempld
- Add support for da9053 to da9052
- Add support for itco-wdt (v3) and baytrail to lpc_ich
- Add new drivers for tps65218, rtsx_usb, bcm590xx
(Re-)moved drivers:
- twl4030 ==> drivers/iio
- ti-ssp ==> /dev/null"
* tag 'mfd-for-linus-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (103 commits)
mfd: wm5110: Correct default for HEADPHONE_DETECT_1
mfd: arizona: Correct small errors in the DT binding documentation
mfd: arizona: Mark DSP clocking register as volatile
mfd: devicetree: bindings: Add pm8xxx RTC description
mfd: kempld-core: Fix potential hang-up during boot
mfd: sec-core: Fix uninitialized 'regmap_rtc' on S2MPA01
mfd: tps65910: Fix regmap_irq_chip_data leak on mfd_add_devices fail
mfd: tps65910: Fix possible invalid pointer dereference on regmap_add_irq_chip fail
mfd: sec-core: Fix I2C dummy device resource leak on probe failure
mfd: sec-core: Add of_compatible strings for clock MFD cells
mfd: Remove obsolete ti-ssp driver
Documentation: mfd: s2mps11: Describe S5M8767 and S2MPS14 clocks
mfd: bcm590xx: Fix type argument for module device table
mfd: lpc_ich: Add support for Intel Bay Trail SoC
mfd: lpc_ich: Add support for NM10 GPIO
mfd: lpc_ich: Change Avoton to iTCO v3
watchdog: iTCO_wdt: Add support for v3 silicon
mfd: lpc_ich: Add support for iTCO v3
mfd: lpc_ich: Remove lpc_ich_cfg struct use
mfd: lpc_ich: Only configure watchdog or GPIO when present
...
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Linus Torvalds
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c29aa153ef |
MTD updates for 3.15:
- A few SPI NOR ID definitions - Kill the NAND "max pagesize" restriction - Fix some x16 bus-width NAND support - Add NAND JEDEC parameter page support - DT bindings for NAND ECC - GPMI NAND updates (subpage reads) - More OMAP NAND refactoring - New STMicro SPI NOR driver (now in 40 patches!) - A few other random bugfixes -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) iQIcBAABAgAGBQJTP6x+AAoJEFySrpd9RFgtit0P/jLWsjMK8G2ldPC4bMZsXmDF n3c71GcCRlUq4Qzb4rtZx9DANLAh+JyRrMOKCPg6dAMegFdmUqDOpZpNp0vF57KG myFjqTk+n5y0tfSkWLMUFt0tQ8ArDp3IBkQCUWkD5LgG50EWmjveIQGH0kFnkE39 Kytqvw17RV7f81tIs+WvKt8++YWD2X1VTpTi0S4fx2bJ99bJDBf/GgdoQpj2oirt igXmloUFEsob9JHZ3qumcUm9vaHwv2TiouZTvRyGdJCCoPdpJEZO4Ka6e4uAVarT 6kMKXBk3lj2GsilOSFFCNetXfy5Bf0TkJkv4rDjh3R1Y4J/hSgraVCbWXdKhb6tj RmwesdFMjsyS4f/Rhk5PXwJgGL9uK2mi6bk/SmXU0AMgCDSa5zjshY8Wq6C6uXwk LqlnK8l3h8Txotbc/XJIL+QGMbMkYQI8gxWTHFaqzDtkMe36mnGs9Zec3oso/s2d CNRpq5+dMZ6qF0z3zpOQHmFbaOekivMy7kCKMXer6ONsrQBNwTdmkwy+SdqnWsLF YdJttwV/RRcE0SRvK6GrhvzkGlV83Z8RPny6hC1kbrgQ0ffoy2CmIqyWNObK1RXf sYqoF8TCtR6Y8rHHi5dzZ1lria+nm8pb4+UfQLRI0mK8og7YW+fIfHXxqRrZZIrt No8NCPBKWzyew2UE0AiQ =CKih -----END PGP SIGNATURE----- Merge tag 'for-linus-20140405' of git://git.infradead.org/linux-mtd Pull MTD updates from Brian Norris: - A few SPI NOR ID definitions - Kill the NAND "max pagesize" restriction - Fix some x16 bus-width NAND support - Add NAND JEDEC parameter page support - DT bindings for NAND ECC - GPMI NAND updates (subpage reads) - More OMAP NAND refactoring - New STMicro SPI NOR driver (now in 40 patches!) - A few other random bugfixes * tag 'for-linus-20140405' of git://git.infradead.org/linux-mtd: (120 commits) Fix index regression in nand_read_subpage mtd: diskonchip: mem resource name is not optional mtd: nand: fix mention to CONFIG_MTD_NAND_ECC_BCH mtd: nand: fix GET/SET_FEATURES address on 16-bit devices mtd: omap2: Use devm_ioremap_resource() mtd: denali_dt: Use devm_ioremap_resource() mtd: devices: elm: update DRIVER_NAME as "omap-elm" mtd: devices: elm: configure parallel channels based on ecc_steps mtd: devices: elm: clean elm_load_syndrome mtd: devices: elm: check for hardware engine's design constraints mtd: st_spi_fsm: Succinctly reorganise .remove() mtd: st_spi_fsm: Allow loop to run at least once before giving up CPU mtd: st_spi_fsm: Correct vendor name spelling issue - missing "M" mtd: st_spi_fsm: Avoid duplicating MTD core code mtd: st_spi_fsm: Remove useless consts from function arguments mtd: st_spi_fsm: Convert ST SPI FSM (NOR) Flash driver to new DT partitions mtd: st_spi_fsm: Move runtime configurable msg sequences into device's struct mtd: st_spi_fsm: Supply the W25Qxxx chip specific configuration call-back mtd: st_spi_fsm: Supply the S25FLxxx chip specific configuration call-back mtd: st_spi_fsm: Supply the MX25xxx chip specific configuration call-back ... |
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Geert Uytterhoeven
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d054980165 |
PM / wakeup: Correct presence vs. emptiness of wakeup_* attributes
According to the documentation, the various wakeup_* attributes in sysfs are not present if the device is not enabled to wake up the system. This is not correct: the attributes are not present if the device is not capable to wake up the system. They are empty if the device is not enabled to wake up the system. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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Tushar Behera
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39ac5ba51b |
PM / domains: Add pd_ignore_unused to keep power domains enabled
Keep all power-domains already enabled by bootloader on, even if no driver has claimed them. This is useful for debug and development, but should not be needed on a platform with proper driver support. Signed-off-by: Tushar Behera <tushar.behera@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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Axel Lin
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e2872090ca |
spi: efm32: Update binding document to make "efm32,location" property optional
If "efm32,location" property is not provided, keeping what is already configured in the hardware, so its either the reset default 0 or whatever the bootloader did. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Mark Brown <broonie@linaro.org> |
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Jaegeuk Kim
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6b4afdd794 |
f2fs: introduce f2fs_issue_flush to avoid redundant flush issue
Some storage devices show relatively high latencies to complete cache_flush commands, even though their normal IO speed is prettry much high. In such the case, it needs to merge cache_flush commands as much as possible to avoid issuing them redundantly. So, this patch introduces a mount option, "-o flush_merge", to mitigate such the overhead. If this option is enabled by user, F2FS merges the cache_flush commands and then issues just one cache_flush on behalf of them. Once the single command is finished, F2FS sends a completion signal to all the pending threads. Note that, this option can be used under a workload consisting of very intensive concurrent fsync calls, while the storage handles cache_flush commands slowly. Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com> |
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Linus Torvalds
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6f4c98e1c2 |
Nothing major: the stricter permissions checking for sysfs broke
a staging driver; fix included. Greg KH said he'd take the patch but hadn't as the merge window opened, so it's included here to avoid breaking build. Cheers, Rusty. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) iQIcBAABAgAGBQJTQMH9AAoJENkgDmzRrbjxo4UP/jwlenP44v+RFpo/dn8Z8E2n SREQscU5ZZKvuyFD6kUdvOz8YC/nTrJvXoVkMUF05GVbuvb8/8UPtT9ECVemd0rW xNy4aFfv9rbrqRLBLpLK9LAgTuhwlbTgGxgL78zRn3hWmf1hBZWCY+cEvKM8l/+9 oEQdORL0sUpZh7iryAeGqbOrXT4gqJEvSLOFwiYTSo6ryzWIilmdXSUAh6s8MIEX PR1+oH9J8B6J29lcXKMf8/sDI1EBUeSLdBmMCuN5Y7xpYxsQLroVx94kPbdBY+XK ZRoYuUGSUJfGRZY46cFKApIGeF07z1DGoyXghbSWEQrI+23TMUmrKUg47LSukE4Y yCUf8HAtqIA3gVc9GKDdSp/2UpkAhTTv5ogKgnIzs1InWtOIBdDRSVUQXDosFEXw 6ZZe1pQs2zfXyXxO4j0Wq36K4RgI0aqOVw+dcC+w5BidjVylgnYRV0PSDd72tid7 bIfnjDbUBo+o4LanPNGYK474KyO7AslgTE50w6zwbJzgdwCQ36hCpKqScBZzm60a 42LrgTVoIHHWAL1tDzWL/LzWflZGdJAezzNje0/f2Q3bGMiNHWoljAvUphkTZ7qt E8+jWqmM+riH3e8Y5wKpO1BKt7NGHISEy//bUlnqTwisjIzVILZ6VjfugQ1AI+0x llTXPBotFvfvXqxunBg7 =yzUO -----END PGP SIGNATURE----- Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull module updates from Rusty Russell: "Nothing major: the stricter permissions checking for sysfs broke a staging driver; fix included. Greg KH said he'd take the patch but hadn't as the merge window opened, so it's included here to avoid breaking build" * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: staging: fix up speakup kobject mode Use 'E' instead of 'X' for unsigned module taint flag. VERIFY_OCTAL_PERMISSIONS: stricter checking for sysfs perms. kallsyms: fix percpu vars on x86-64 with relocation. kallsyms: generalize address range checking module: LLVMLinux: Remove unused function warning from __param_check macro Fix: module signature vs tracepoints: add new TAINT_UNSIGNED_MODULE module: remove MODULE_GENERIC_TABLE module: allow multiple calls to MODULE_DEVICE_TABLE() per module module: use pr_cont |
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Soren Brinkmann
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893f067772 |
i2c: cadence: Document device tree bindings
Add device tree binding documentation for the Cadence I2C controller. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> |
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Wolfram Sang
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9f02fba84b |
Documentation: i2c: improve section about flags mangling the protocol
Sort the entries alphabetically. Make the introductory paragraph more precise. Skip useless 'Flag' introduction from the entries. Remove trailing white spaces from the file. Add missing I2C_M_STOP entry. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> |
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Linus Torvalds
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04535d273e |
. Fix dm-cache corruption caused by discard_block_size >
cache_block_size . Fix a lock-inversion detected by LOCKDEP in dm-cache . Fix a dangling bio bug in the dm-thinp target's process_deferred_bios error path . Fix corruption due to non-atomic transaction commit which allowed a metadata superblock to be written before all other metadata was successfully written -- this is common to all targets that use the persistent-data library's transaction manager (dm-thinp, dm-cache and dm-era). . Various small cleanups in the DM core . Add the dm-era target which is useful for keeping track of which blocks were written within a user defined period of time called an 'era'. Use cases include tracking changed blocks for backup software, and partially invalidating the contents of a cache to restore cache coherency after rolling back a vendor snapshot. . Improve the on-disk layout of multithreaded writes to the dm-thin-pool by splitting the pool's deferred bio list to be a per-thin device list and then sorting that list using an rb_tree. The subsequent read throughput of the data written via multiple threads improved by ~70%. . Simplify the multipath target's handling of queuing IO by pushing requests back to the request queue rather than queueing the IO internally. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAABAgAGBQJTPv/6AAoJEMUj8QotnQNagQYH/3EkB2f66TRfjRQpVAZuchw/ U0IbVWcMJKMdhj3uaSNzIkAbTgF+QsZUOLHP/7Q6zLq0M2J3WGrJn2ELqq53MenF E0+rJ8duKnJ5oLhhVT62ukBDh3XHWT0JyijXPWNa2gUoYwJqM9BAlXbC/OTfUNaZ mBCxvUWGME8k3ht310GhwvzBQjYuxIXhw8XlbGvakb9S83SZwNpCh231iumOEzPe Vzfx/xTto0fH3R5/knNV/H9xt0Dv4vt4Aqbqqys9UbQvPzj9qN/mxUZIFg+LZh/w WuvHHw6HcAiNNrQGFcm6i1AK2jJ+F61K3afMlYsiamTxMNM+0q/B9HemkX/0ieU= =lY8m -----END PGP SIGNATURE----- Merge tag 'dm-3.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper changes from Mike Snitzer: - Fix dm-cache corruption caused by discard_block_size > cache_block_size - Fix a lock-inversion detected by LOCKDEP in dm-cache - Fix a dangling bio bug in the dm-thinp target's process_deferred_bios error path - Fix corruption due to non-atomic transaction commit which allowed a metadata superblock to be written before all other metadata was successfully written -- this is common to all targets that use the persistent-data library's transaction manager (dm-thinp, dm-cache and dm-era). - Various small cleanups in the DM core - Add the dm-era target which is useful for keeping track of which blocks were written within a user defined period of time called an 'era'. Use cases include tracking changed blocks for backup software, and partially invalidating the contents of a cache to restore cache coherency after rolling back a vendor snapshot. - Improve the on-disk layout of multithreaded writes to the dm-thin-pool by splitting the pool's deferred bio list to be a per-thin device list and then sorting that list using an rb_tree. The subsequent read throughput of the data written via multiple threads improved by ~70%. - Simplify the multipath target's handling of queuing IO by pushing requests back to the request queue rather than queueing the IO internally. * tag 'dm-3.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (24 commits) dm cache: fix a lock-inversion dm thin: sort the per thin deferred bios using an rb_tree dm thin: use per thin device deferred bio lists dm thin: simplify pool_is_congested dm thin: fix dangling bio in process_deferred_bios error path dm mpath: print more useful warnings in multipath_message() dm-mpath: do not activate failed paths dm mpath: remove extra nesting in map function dm mpath: remove map_io() dm mpath: reduce memory pressure when requeuing dm mpath: remove process_queued_ios() dm mpath: push back requests instead of queueing dm table: add dm_table_run_md_queue_async dm mpath: do not call pg_init when it is already running dm: use RCU_INIT_POINTER instead of rcu_assign_pointer in __unbind dm: stop using bi_private dm: remove dm_get_mapinfo dm: make dm_table_alloc_md_mempools static dm: take care to copy the space map roots before locking the superblock dm transaction manager: fix corruption due to non-atomic transaction commit ... |
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Linus Torvalds
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3f583bc219 |
IOMMU Upates for Linux v3.15
This time a few more updates queued up.
* Rework VT-d code to support ACPI devices
* Improvements for memory and PCI hotplug support
in the VT-d driver
* Device-tree support for OMAP IOMMU
* Convert OMAP IOMMU to use devm_* interfaces
* Fixed PASID support for AMD IOMMU
* Other random cleanups and fixes for OMAP, ARM-SMMU
and SHMOBILE IOMMU
Most of the changes are in the VT-d driver because some rework was
necessary for better hotplug and ACPI device support.
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Merge tag 'iommu-updates-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU upates from Joerg Roedel:
"This time a few more updates queued up.
- Rework VT-d code to support ACPI devices
- Improvements for memory and PCI hotplug support in the VT-d driver
- Device-tree support for OMAP IOMMU
- Convert OMAP IOMMU to use devm_* interfaces
- Fixed PASID support for AMD IOMMU
- Other random cleanups and fixes for OMAP, ARM-SMMU and SHMOBILE
IOMMU
Most of the changes are in the VT-d driver because some rework was
necessary for better hotplug and ACPI device support"
* tag 'iommu-updates-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (75 commits)
iommu/vt-d: Fix error handling in ANDD processing
iommu/vt-d: returning free pointer in get_domain_for_dev()
iommu/vt-d: Only call dmar_acpi_dev_scope_init() if DRHD units present
iommu/vt-d: Check for NULL pointer in dmar_acpi_dev_scope_init()
iommu/amd: Fix logic to determine and checking max PASID
iommu/vt-d: Include ACPI devices in iommu=pt
iommu/vt-d: Finally enable translation for non-PCI devices
iommu/vt-d: Remove to_pci_dev() in intel_map_page()
iommu/vt-d: Remove pdev from intel_iommu_attach_device()
iommu/vt-d: Remove pdev from iommu_no_mapping()
iommu/vt-d: Make domain_add_dev_info() take struct device
iommu/vt-d: Make domain_remove_one_dev_info() take struct device
iommu/vt-d: Rename 'hwdev' variables to 'dev' now that that's the norm
iommu/vt-d: Remove some pointless to_pci_dev() calls
iommu/vt-d: Make get_valid_domain_for_dev() take struct device
iommu/vt-d: Make iommu_should_identity_map() take struct device
iommu/vt-d: Handle RMRRs for non-PCI devices
iommu/vt-d: Make get_domain_for_dev() take struct device
iommu/vt-d: Make domain_context_mapp{ed,ing}() take struct device
iommu/vt-d: Make device_to_iommu() cope with non-PCI devices
...
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