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2020-04-10Merge branch 'akpm' (patches from Andrew)Linus Torvalds3-4/+33
Merge yet more updates from Andrew Morton: - Almost all of the rest of MM (memcg, slab-generic, slab, pagealloc, gup, hugetlb, pagemap, memremap) - Various other things (hfs, ocfs2, kmod, misc, seqfile) * akpm: (34 commits) ipc/util.c: sysvipc_find_ipc() should increase position index kernel/gcov/fs.c: gcov_seq_next() should increase position index fs/seq_file.c: seq_read(): add info message about buggy .next functions drivers/dma/tegra20-apb-dma.c: fix platform_get_irq.cocci warnings change email address for Pali Rohár selftests: kmod: test disabling module autoloading selftests: kmod: fix handling test numbers above 9 docs: admin-guide: document the kernel.modprobe sysctl fs/filesystems.c: downgrade user-reachable WARN_ONCE() to pr_warn_once() kmod: make request_module() return an error when autoloading is disabled mm/memremap: set caching mode for PCI P2PDMA memory to WC mm/memory_hotplug: add pgprot_t to mhp_params powerpc/mm: thread pgprot_t through create_section_mapping() x86/mm: introduce __set_memory_prot() x86/mm: thread pgprot_t through init_memory_mapping() mm/memory_hotplug: rename mhp_restrictions to mhp_params mm/memory_hotplug: drop the flags field from struct mhp_restrictions mm/special: create generic fallbacks for pte_special() and pte_mkspecial() mm/vma: introduce VM_ACCESS_FLAGS mm/vma: define a default value for VM_DATA_DEFAULT_FLAGS ...
2020-04-10Merge tag 'docs-5.7-2' of git://git.lwn.net/linuxLinus Torvalds6-24/+22
Pull Documentation fixes from Jonathan Corbet: "A handful of late-arriving fixes for the documentation tree" * tag 'docs-5.7-2' of git://git.lwn.net/linux: Documentation: android: binderfs: add 'stats' mount option Documentation: driver-api/usb/writing_usb_driver.rst Updates documentation links docs: driver-api: address duplicate label warning Documentation: sysrq: fix RST formatting docs: kernel-parameters.txt: Fix broken references docs: kernel-parameters.txt: Remove nompx docs: filesystems: fix typo in qnx6.rst
2020-04-10Merge tag 'for-linus-5.7-ofs1' of ↵Linus Torvalds1-15/+19
git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux Pull orangefs updates from Mike Marshall: "A fix and two cleanups. Fix: - Christoph Hellwig noticed that some logic I added to orangefs_file_read_iter introduced a race condition, so he sent a reversion patch. I had to modify his patch since reverting at this point broke Orangefs. Cleanups: - Christoph Hellwig noticed that we were doing some unnecessary work in orangefs_flush, so he sent in a patch that removed the un-needed code. - Al Viro told me he had trouble building Orangefs. Orangefs should be easy to build, even for Al :-). I looked back at the test server build notes in orangefs.txt, just in case that's where the trouble really is, and found a couple of typos and made a couple of clarifications" * tag 'for-linus-5.7-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux: orangefs: clarify build steps for test server in orangefs.txt orangefs: don't mess with I_DIRTY_TIMES in orangefs_flush orangefs: get rid of knob code...
2020-04-10change email address for Pali RohárPali Rohár1-4/+4
For security reasons I stopped using gmail account and kernel address is now up-to-date alias to my personal address. People periodically send me emails to address which they found in source code of drivers, so this change reflects state where people can contact me. [ Added .mailmap entry as per Joe Perches - Linus ] Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Joe Perches <joe@perches.com> Link: http://lkml.kernel.org/r/20200307104237.8199-1-pali@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-10docs: admin-guide: document the kernel.modprobe sysctlEric Biggers1-0/+21
Document the kernel.modprobe sysctl in the same place that all the other kernel.* sysctls are documented. Make sure to mention how to use this sysctl to completely disable module autoloading, and how this sysctl relates to CONFIG_STATIC_USERMODEHELPER. [ebiggers@google.com: v5] Link: http://lkml.kernel.org/r/20200318230515.171692-4-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jeff Vander Stoep <jeffv@google.com> Cc: Jessica Yu <jeyu@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: NeilBrown <neilb@suse.com> Link: http://lkml.kernel.org/r/20200312202552.241885-4-ebiggers@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-10mm: hugetlb: optionally allocate gigantic hugepages using cmaRoman Gushchin1-0/+8
Commit 944d9fec8d7a ("hugetlb: add support for gigantic page allocation at runtime") has added the run-time allocation of gigantic pages. However it actually works only at early stages of the system loading, when the majority of memory is free. After some time the memory gets fragmented by non-movable pages, so the chances to find a contiguous 1GB block are getting close to zero. Even dropping caches manually doesn't help a lot. At large scale rebooting servers in order to allocate gigantic hugepages is quite expensive and complex. At the same time keeping some constant percentage of memory in reserved hugepages even if the workload isn't using it is a big waste: not all workloads can benefit from using 1 GB pages. The following solution can solve the problem: 1) On boot time a dedicated cma area* is reserved. The size is passed as a kernel argument. 2) Run-time allocations of gigantic hugepages are performed using the cma allocator and the dedicated cma area In this case gigantic hugepages can be allocated successfully with a high probability, however the memory isn't completely wasted if nobody is using 1GB hugepages: it can be used for pagecache, anon memory, THPs, etc. * On a multi-node machine a per-node cma area is allocated on each node. Following gigantic hugetlb allocation are using the first available numa node if the mask isn't specified by a user. Usage: 1) configure the kernel to allocate a cma area for hugetlb allocations: pass hugetlb_cma=10G as a kernel argument 2) allocate hugetlb pages as usual, e.g. echo 10 > /sys/kernel/mm/hugepages/hugepages-1048576kB/nr_hugepages If the option isn't enabled or the allocation of the cma area failed, the current behavior of the system is preserved. x86 and arm-64 are covered by this patch, other architectures can be trivially added later. The patch contains clean-ups and fixes proposed and implemented by Aslan Bakirov and Randy Dunlap. It also contains ideas and suggestions proposed by Rik van Riel, Michal Hocko and Mike Kravetz. Thanks! Signed-off-by: Roman Gushchin <guro@fb.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Andreas Schaufler <andreas.schaufler@gmx.de> Acked-by: Mike Kravetz <mike.kravetz@oracle.com> Acked-by: Michal Hocko <mhocko@kernel.org> Cc: Aslan Bakirov <aslan@fb.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Rik van Riel <riel@surriel.com> Cc: Joonsoo Kim <js1304@gmail.com> Link: http://lkml.kernel.org/r/20200407163840.92263-3-guro@fb.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-10Merge tag 'pwm/for-5.7-rc1' of ↵Linus Torvalds3-23/+41
git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm Pull pwm updates from Thierry Reding: "There's quite a few changes this time around. Most of these are fixes and cleanups, but there's also new chip support for some drivers and a bit of rework" * tag 'pwm/for-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (33 commits) pwm: pca9685: Fix PWM/GPIO inter-operation pwm: Make pwm_apply_state_debug() static pwm: meson: Remove redundant assignment to variable fin_freq pwm: jz4740: Allow selection of PWM channels 0 and 1 pwm: jz4740: Obtain regmap from parent node pwm: jz4740: Improve algorithm of clock calculation pwm: jz4740: Use clocks from TCU driver pwm: sun4i: Remove redundant needs_delay pwm: omap-dmtimer: Implement .apply callback pwm: omap-dmtimer: Do not disable PWM before changing period/duty_cycle pwm: omap-dmtimer: Fix PWM enabling sequence pwm: omap-dmtimer: Update description for PWM OMAP DM timer pwm: omap-dmtimer: Drop unused header file pwm: renesas-tpu: Drop confusing registered message pwm: renesas-tpu: Fix late Runtime PM enablement pwm: rcar: Fix late Runtime PM enablement dt-bindings: pwm: renesas-tpu: Document more R-Car Gen2 support pwm: meson: Fix confusing indentation pwm: pca9685: Use gpio core provided macro GPIO_LINE_DIRECTION_OUT pwm: pca9685: Replace CONFIG_PM with __maybe_unused ...
2020-04-10Merge tag 'for-linus-5.7-1' of git://github.com/cminyard/linux-ipmiLinus Torvalds1-6/+14
Pull IPMI updates from Corey Minyard: "Bug fixes for main IPMI driver, kcs updates A couple of bug fixes for the main IPMI driver, one functional and two annotations. The kcs driver has some significant updates that have been pending for a while, but I forgot to include in next until a week ago. But this code is only used by the people who are sending it to me, really, so it's not a big deal. I did want it to sit in next for at least a week, and it did result in a fix" * tag 'for-linus-5.7-1' of git://github.com/cminyard/linux-ipmi: ipmi: kcs: Fix aspeed_kcs_probe_of_v1() ipmi: Add missing annotation for ipmi_ssif_lock_cond() and ipmi_ssif_unlock_cond() ipmi: kcs: aspeed: Implement v2 bindings ipmi: kcs: Finish configuring ASPEED KCS device before enable dt-bindings: ipmi: aspeed: Introduce a v2 binding for KCS ipmi: fix hung processes in __get_guid() drivers: char: ipmi: ipmi_msghandler: Pass lockdep expression to RCU lists
2020-04-10Merge tag 'sound-fix-5.7-rc1' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "A collection of small fixes gathered since the previous update. ALSA core: - Regression fix for OSS PCM emulation ASoC: - Trivial fixes in reg bit mask ops, DAPM, DPCM and topology - Lots of fixes for Intel-based devices - Minor fixes for AMD, STM32, Qualcomm, Realtek Others: - Fixes for the bugs in mixer handling in HD-audio and ice1724 drivers that were caught by the recent kctl validator - New quirks for HD-audio and USB-audio Also this contains a fix for EDD firmware fix, which slipped from anyone's hands" * tag 'sound-fix-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (35 commits) ALSA: hda: Add driver blacklist ALSA: usb-audio: Add mixer workaround for TRX40 and co ALSA: hda/realtek - Add quirk for MSI GL63 ALSA: ice1724: Fix invalid access for enumerated ctl items ALSA: hda: Fix potential access overflow in beep helper ASoC: cs4270: pull reset GPIO low then high ALSA: hda/realtek - Add HP new mute led supported for ALC236 ALSA: hda/realtek - Add supported new mute Led for HP ASoC: rt5645: Add platform-data for Medion E1239T ASoC: Intel: bytcr_rt5640: Add quirk for MPMAN MPWIN895CL tablet ASoC: stm32: sai: Add missing cleanup ALSA: usb-audio: Add registration quirk for Kingston HyperX Cloud Alpha S ASoC: Intel: atom: Fix uninitialized variable compiler warning ASoC: Intel: atom: Check drv->lock is locked in sst_fill_and_send_cmd_unlocked ASoC: Intel: atom: Take the drv->lock mutex before calling sst_send_slot_map() ASoC: SOF: Turn "firmware boot complete" message into a dbg message ALSA: usb-audio: Add Pioneer DJ DJM-250MK2 quirk ALSA: pcm: oss: Fix regression by buffer overflow fix (again) ALSA: pcm: oss: Fix regression by buffer overflow fix edd: Use scnprintf() for avoiding potential buffer overflow ...
2020-04-10Merge tag 'acpi-5.7-rc1-3' of ↵Linus Torvalds1-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more ACPI updates from Rafael Wysocki: "These prevent a false-positive static checker warning from triggering in the ACPI EC driver (Rafael Wysocki), fix white space in an ACPI document (Vilhelm Prytz) and add static annotation to one variable (Jason Yan)" * tag 'acpi-5.7-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI, x86/boot: make acpi_nobgrt static Documentation: firmware-guide: ACPI: fix table alignment in namespace.rst ACPI: EC: Fix up fast path check in acpi_ec_add()
2020-04-10Documentation: android: binderfs: add 'stats' mount optionRandy Dunlap1-0/+6
Add documentation of the binderfs 'stats' mount option. Description taken from the commit message. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Link: https://lore.kernel.org/r/baa0aa81-007d-af46-16a5-91fead0bd1b9@infradead.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-04-08Merge tag '9p-for-5.7-2' of git://github.com/martinetd/linuxLinus Torvalds1-0/+10
Pull 9p documentation update from Dominique Martinet: "Document the new O_NONBLOCK short read behavior" * tag '9p-for-5.7-2' of git://github.com/martinetd/linux: 9p: document short read behaviour with O_NONBLOCK
2020-04-08Merge tag 'ceph-for-5.7-rc1' of git://github.com/ceph/ceph-clientLinus Torvalds1-3/+3
Pull ceph updates from Ilya Dryomov: "The main items are: - support for asynchronous create and unlink (Jeff Layton). Creates and unlinks are satisfied locally, without waiting for a reply from the MDS, provided the client has been granted appropriate caps (new in v15.y.z ("Octopus") release). This can be a big help for metadata heavy workloads such as tar and rsync. Opt-in with the new nowsync mount option. - multiple blk-mq queues for rbd (Hannes Reinecke and myself). When the driver was converted to blk-mq, we settled on a single blk-mq queue because of a global lock in libceph and some other technical debt. These have since been addressed, so allocate a queue per CPU to enhance parallelism. - don't hold onto caps that aren't actually needed (Zheng Yan). This has been our long-standing behavior, but it causes issues with some active/standby applications (synchronous I/O, stalls if the standby goes down, etc). - .snap directory timestamps consistent with ceph-fuse (Luis Henriques)" * tag 'ceph-for-5.7-rc1' of git://github.com/ceph/ceph-client: (49 commits) ceph: fix snapshot directory timestamps ceph: wait for async creating inode before requesting new max size ceph: don't skip updating wanted caps when cap is stale ceph: request new max size only when there is auth cap ceph: cleanup return error of try_get_cap_refs() ceph: return ceph_mdsc_do_request() errors from __get_parent() ceph: check all mds' caps after page writeback ceph: update i_requested_max_size only when sending cap msg to auth mds ceph: simplify calling of ceph_get_fmode() ceph: remove delay check logic from ceph_check_caps() ceph: consider inode's last read/write when calculating wanted caps ceph: always renew caps if mds_wanted is insufficient ceph: update dentry lease for async create ceph: attempt to do async create when possible ceph: cache layout in parent dir on first sync create ceph: add new MDS req field to hold delegated inode number ceph: decode interval_sets for delegated inos ceph: make ceph_fill_inode non-static ceph: perform asynchronous unlink if we have sufficient caps ceph: don't take refs to want mask unless we have all bits ...
2020-04-08Merge tag 'ovl-update-5.7' of ↵Linus Torvalds1-2/+80
git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs Pull overlayfs update from Miklos Szeredi: - Fix failure to copy-up files from certain NFSv4 mounts - Sort out inconsistencies between st_ino and i_ino (used in /proc/locks) - Allow consistent (POSIX-y) inode numbering in more cases - Allow virtiofs to be used as upper layer - Miscellaneous cleanups and fixes * tag 'ovl-update-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: ovl: document xino expected behavior ovl: enable xino automatically in more cases ovl: avoid possible inode number collisions with xino=on ovl: use a private non-persistent ino pool ovl: fix WARN_ON nlink drop to zero ovl: fix a typo in comment ovl: replace zero-length array with flexible-array member ovl: ovl_obtain_alias(): don't call d_instantiate_anon() for old ovl: strict upper fs requirements for remote upper fs ovl: check if upper fs supports RENAME_WHITEOUT ovl: allow remote upper ovl: decide if revalidate needed on a per-dentry basis ovl: separate detection of remote upper layer from stacked overlay ovl: restructure dentry revalidation ovl: ignore failure to copy up unknown xattrs ovl: document permission model ovl: simplify i_ino initialization ovl: factor out helper ovl_get_root() ovl: fix out of date comment and unreachable code ovl: fix value of i_ino for lower hardlink corner case
2020-04-08Merge tag 'linux-watchdog-5.7-rc1' of ↵Linus Torvalds1-0/+65
git://www.linux-watchdog.org/linux-watchdog Pull watchdog updates from Wim Van Sebroeck: - add TI K3 RTI watchdog - add stop_on_reboot parameter to control reboot policy - wm831x_wdt: Remove GPIO handling - several small fixes, improvements and clean-ups * tag 'linux-watchdog-5.7-rc1' of git://www.linux-watchdog.org/linux-watchdog: watchdog: Add K3 RTI watchdog support dt-bindings: watchdog: Add support for TI K3 RTI watchdog watchdog: ziirave_wdt: change name to be more specific watchdog: orion: use 0 for unset heartbeat watchdog: npcm: remove whitespaces watchdog: reset last_hw_keepalive time at start watchdog: imx2_wdt: Drop .remove callback watchdog: Add stop_on_reboot parameter to control reboot policy watchdog: wm831x_wdt: Remove GPIO handling watchdog: imx7ulp: Remove unused include of init.h watchdog: imx_sc_wdt: Remove unused includes watchdog: qcom: Use irq flags from firmware watchdog: pm8916_wdt: Add system sleep callbacks watchdog: qcom-wdt: disable pretimeout on timer platform
2020-04-08orangefs: clarify build steps for test server in orangefs.txtMike Marshall1-15/+19
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2020-04-08Merge tag 'asoc-fix-v5.7' of ↵Takashi Iwai1-1/+1
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Fixes for v5.7 A collection of fixes that have been accumilated since the merge window, mainly relating to x86 platform support.
2020-04-089p: document short read behaviour with O_NONBLOCKDominique Martinet1-0/+10
Regular files opened with O_NONBLOCK allow read to return after a single round-trip with the server instead of trying to fill buffer. Add a few lines in 9p documentation to describe that. Link: http://lkml.kernel.org/r/1586193572-1375-1-git-send-email-asmadeus@codewreck.org Signed-off-by: Dominique Martinet <dominique.martinet@cea.fr>
2020-04-08Documentation: firmware-guide: ACPI: fix table alignment in namespace.rstVilhelm Prytz1-3/+3
Fixe the alignment in the ACPI block diagram (RST table) by adding missing spaces Signed-off-by: Vilhelm Prytz <vilhelm@prytznet.se> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-04-07Merge tag 'drm-next-2020-04-08' of git://anongit.freedesktop.org/drm/drmLinus Torvalds4-16/+6
Pull drm fixes from Dave Airlie: "This is a set of fixes that have queued up, I think I might have another pull with some more before rc1 but I'd like to dequeue what I have now just in case Easter is more eggciting that expected. The main thing in here is a fix for a longstanding nouveau power management issues on certain laptops, it should help runtime suspend/resume for a lot of people. There is also a reverted patch for some drm_mm behaviour in atomic contexts. Summary: core: - revert drm_mm atomic patch - dt binding fixes fbcon: - null ptr error fix i915: - GVT fixes nouveau: - runpm fix - svm fixes amdgpu: - HDCP fixes - gfx10 fix - Misc display fixes - BACO fixes amdkfd: - Fix memory leak vboxvideo: - remove conflicting fbs vc4: - mode validation fix xen: - fix PTR_ERR usage" * tag 'drm-next-2020-04-08' of git://anongit.freedesktop.org/drm/drm: (41 commits) drm/nouveau/kms/nv50-: wait for FIFO space on PIO channels drm/nouveau/nvif: protect waits against GPU falling off the bus drm/nouveau/nvif: access PTIMER through usermode class, if available drm/nouveau/gr/gp107,gp108: implement workaround for HW hanging during init drm/nouveau: workaround runpm fail by disabling PCI power management on certain intel bridges drm/nouveau/svm: remove useless SVM range check drm/nouveau/svm: check for SVM initialized before migrating drm/nouveau/svm: fix vma range check for migration drm/nouveau: remove checks for return value of debugfs functions drm/nouveau/ttm: evict other IO mappings when running out of BAR1 space drm/amdkfd: kfree the wrong pointer drm/amd/display: increase HDCP authentication delay drm/amd/display: Correctly cancel future watchdog and callback events drm/amd/display: Don't try hdcp1.4 when content_type is set to type1 drm/amd/powerplay: move the ASIC specific nbio operation out of smu_v11_0.c drm/amd/powerplay: drop redundant BIF doorbell interrupt operations drm/amd/display: Fix dcn21 num_states drm/amd/display: Enable BT2020 in COLOR_ENCODING property drm/amd/display: LFC not working on 2.0x range monitors (v2) drm/amd/display: Support plane level CTM ...
2020-04-07Merge branch 'for-linus' of ↵Linus Torvalds3-77/+127
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: "An update to the Goodix touchscreen driver to enable it work properly on various Bay Trail and Cherry Trail devices, and a few other assorted changes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (26 commits) Input: update SPDX tag for input-event-codes.h Input: i8042 - add Acer Aspire 5738z to nomux list Input: goodix - fix compilation when ACPI support is disabled dt-bindings: touchscreen: Convert edt-ft5x06 to json-schema Input: of_touchscreen - explicitly choose axis Input: goodix - support gt9147 touchpanel dt-bindings: touchscreen: goodix: support of gt9147 Input: goodix - add support for Goodix GT917S Input: goodix - use string-based chip ID dt-bindings: input: touchscreen: add compatible string for Goodix GT917S Input: goodix - add support for more then one touch-key Input: goodix - fix spurious key release events Input: goodix - try to reset the controller if the i2c-test fails Input: goodix - restore config on resume if necessary Input: goodix - make goodix_send_cfg() take a raw buffer as argument Input: goodix - add minimum firmware size check Input: goodix - save a copy of the config from goodix_read_config() Input: goodix - move defines to above struct goodix_ts_data declaration Input: goodix - add support for controlling the IRQ pin through ACPI methods Input: goodix - add support for getting IRQ + reset GPIOs on Bay Trail devices ...
2020-04-07Merge tag 'thermal-v5.7-rc1' of ↵Linus Torvalds7-4/+143
git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux Pull thermal updates from Daniel Lezcano: - Convert tsens configuration DT binding to yaml (Rajeshwari) - Add interrupt support on the rcar sensor (Niklas Söderlund) - Add a new Spreadtrum thermal driver (Baolin Wang) - Add thermal binding for the fsl scu board, a new API to retrieve the sensor id bound to the thermal zone and i.MX system controller sensor (Anson Huang)) - Remove warning log when a deferred probe is requested on Exynos (Marek Szyprowski) - Add the thermal monitoring unit support for imx8mm with its DT bindings (Anson Huang) - Rephrase the Kconfig text for clarity (Linus Walleij) - Use the gpio descriptor for the ti-soc-thermal (Linus Walleij) - Align msg structure to 4 bytes for i.MX SC, fix the Kconfig dependency, add the __may_be unused annotation for PM functions and the COMPILE_TEST option for imx8mm (Anson Huang) - Fix a dependency on regmap in Kconfig for qoriq (Yuantian Tang) - Add DT binding and support for the rcar gen3 r8a77961 and improve the error path on the rcar init function (Niklas Söderlund) - Cleanup and improvements for the tsens Qcom sensor (Amit Kucheria) - Improve code by removing lock and caching values in the rcar thermal sensor (Niklas Söderlund) - Cleanup in the qoriq drivers and add a call to imx_thermal_unregister_legacy_cooling in the removal function (Anson Huang) - Remove redundant 'maxItems' in tsens and sprd DT bindings (Rob Herring) - Change the thermal DT bindings by making the cooling-maps optional (Yuantian Tang) - Add Tiger Lake support (Sumeet Pawnikar) - Use scnprintf() for avoiding potential buffer overflow (Takashi Iwai) - Make pkg_temp_lock a raw_spinlock_t(Clark Williams) - Fix incorrect data types by changing them to signed on i.MX SC (Anson Huang) - Replace zero-length array with flexible-array member (Gustavo A. R. Silva) - Add support for i.MX8MP in the driver and in the DT bindings (Anson Huang) - Fix return value of the cpufreq_set_cur_state() function (Willy Wolff) - Remove abusing and scary WARN_ON in the cpufreq cooling device (Daniel Lezcano) - Fix build warning of incorrect argument type reported by sparse on imx8mm (Anson Huang) - Fix stub for the devfreq cooling device (Martin Blumenstingl) - Fix cpu idle cooling documentation (Sergey Vidishev) * tag 'thermal-v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (52 commits) Documentation: cpu-idle-cooling: Fix diagram for 33% duty cycle thermal: devfreq_cooling: inline all stubs for CONFIG_DEVFREQ_THERMAL=n thermal: imx8mm: Fix build warning of incorrect argument type thermal/drivers/cpufreq_cooling: Remove abusing WARN_ON thermal/drivers/cpufreq_cooling: Fix return of cpufreq_set_cur_state thermal: imx8mm: Add i.MX8MP support dt-bindings: thermal: imx8mm-thermal: Add support for i.MX8MP thermal: qcom: tsens.h: Replace zero-length array with flexible-array member thermal: imx_sc_thermal: Fix incorrect data type thermal: int340x_thermal: Use scnprintf() for avoiding potential buffer overflow thermal: int340x: processor_thermal: Add Tiger Lake support thermal/x86_pkg_temp: Make pkg_temp_lock a raw_spinlock_t dt-bindings: thermal: make cooling-maps property optional dt-bindings: thermal: qcom-tsens: Remove redundant 'maxItems' dt-bindings: thermal: sprd: Remove redundant 'maxItems' thermal: imx: Calling imx_thermal_unregister_legacy_cooling() in .remove thermal: qoriq: Sort includes alphabetically thermal: qoriq: Use devm_add_action_or_reset() to handle all cleanups thermal: rcar_thermal: Remove lock in rcar_thermal_get_current_temp() thermal: rcar_thermal: Do not store ctemp in rcar_thermal_priv ...
2020-04-07Merge tag 'mfd-next-5.7' of ↵Linus Torvalds11-252/+1021
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull mfd updates from Lee Jones: "New Drivers: - Add support for IQS620A/621/622/624/625 Azoteq IQS62X Sensors New Device Support: - Add support for ADC, IRQ, Regulator, RTC and WDT to Ricoh RN5T618 PMIC - Add support for Comet Lake to Intel LPSS New Functionality: - Add support for Charger Detection to Spreadtrum SC27xx PMICs - Add support for Interrupt Polarity to Dialog Semi DA9062/61 PMIC - Add ACPI enumeration support to Diolan DLN2 USB Adaptor Fix-ups: - Device Tree; iqs62x, rn5t618, cros_ec_dev, stm32-lptimer, rohm,bd71837, rohm,bd71847 - I2C registration; rn5t618 - Kconfig; MFD_CPCAP, AB8500_CORE, MFD_WM8994, MFD_WM97xx, MFD_STPMIC1 - Use flexible-array members; omap-usb-tll, qcom-pm8xxx - Remove unnecessary casts; omap-usb-host, omap-usb-tll - Power (suspend/resume/poweroff) enhancements; rk808 - Improve error/sanity checking; dln2 - Use snprintf(); aat2870-core Bug Fixes: - Fix PCI IDs in intel-lpss-pci" * tag 'mfd-next-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (33 commits) mfd: intel-lpss: Fix Intel Elkhart Lake LPSS I2C input clock mfd: aat2870: Use scnprintf() for avoiding potential buffer overflow mfd: dln2: Allow to be enumerated via ACPI mfd: da9062: Add support for interrupt polarity defined in device tree dt-bindings: bd718x7: Yamlify and add BD71850 mfd: dln2: Fix sanity checking for endpoints mfd: intel-lpss: Add Intel Comet Lake PCH-V PCI IDs mfd: sc27xx: Add USB charger type detection support dt-bindings: mfd: Document STM32 low power timer bindings mfd: rk808: Convert RK805 to shutdown/suspend hooks mfd: rk808: Reduce shutdown duplication mfd: rk808: Stop using syscore ops mfd: rk808: Ensure suspend/resume hooks always work mfd: rk808: Always use poweroff when requested mfd: omap: Remove useless cast for driver.name mfd: Kconfig: Fix some misspelling of the word functionality mfd: pm8xxx: Replace zero-length array with flexible-array member mfd: omap-usb-tll: Replace zero-length array with flexible-array member mfd: cpcap: Fix compile if MFD_CORE is not selected mfd: cros_ec: Check DT node for usbpd-notify add ...
2020-04-08Merge tag 'drm-misc-next-fixes-2020-04-04' of ↵Dave Airlie4-16/+6
git://anongit.freedesktop.org/drm/drm-misc into drm-next A bunch of fixes to avoid null pointer dereference in fbcon, fix a return in xen, some DT bindings fixes, a vc4 issue with 1920x1200 mode validation, and a conflicting framebuffer in vboxvideo. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20200404090057.a3m7uw6tavwtcyon@gilmour.lan
2020-04-07Merge branch 'akpm' (patches from Andrew)Linus Torvalds5-10/+128
Merge more updates from Andrew Morton: - a lot more of MM, quite a bit more yet to come: (memcg, pagemap, vmalloc, pagealloc, migration, thp, ksm, madvise, virtio, userfaultfd, memory-hotplug, shmem, rmap, zswap, zsmalloc, cleanups) - various other subsystems (procfs, misc, MAINTAINERS, bitops, lib, checkpatch, epoll, binfmt, kallsyms, reiserfs, kmod, gcov, kconfig, ubsan, fault-injection, ipc) * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (158 commits) ipc/shm.c: make compat_ksys_shmctl() static ipc/mqueue.c: fix a brace coding style issue lib/Kconfig.debug: fix a typo "capabilitiy" -> "capability" ubsan: include bug type in report header kasan: unset panic_on_warn before calling panic() ubsan: check panic_on_warn drivers/misc/lkdtm/bugs.c: add arithmetic overflow and array bounds checks ubsan: split "bounds" checker from other options ubsan: add trap instrumentation option init/Kconfig: clean up ANON_INODES and old IO schedulers options kernel/gcov/fs.c: replace zero-length array with flexible-array member gcov: gcc_3_4: replace zero-length array with flexible-array member gcov: gcc_4_7: replace zero-length array with flexible-array member kernel/kmod.c: fix a typo "assuems" -> "assumes" reiserfs: clean up several indentation issues kallsyms: unexport kallsyms_lookup_name() and kallsyms_on_each_symbol() samples/hw_breakpoint: drop use of kallsyms_lookup_name() samples/hw_breakpoint: drop HW_BREAKPOINT_R when reporting writes fs/binfmt_elf.c: don't free interpreter's ELF pheaders on common path fs/binfmt_elf.c: allocate less for static executable ...
2020-04-07Merge tag 'f2fs-for-5.7-rc1' of ↵Linus Torvalds2-2/+7
git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs Pull f2fs updates from Jaegeuk Kim: "In this round, we've mainly focused on fixing bugs and addressing issues in recently introduced compression support. Enhancement: - add zstd support, and set LZ4 by default - add ioctl() to show # of compressed blocks - show mount time in debugfs - replace rwsem with spinlock - avoid lock contention in DIO reads Some major bug fixes wrt compression: - compressed block count - memory access and leak - remove obsolete fields - flag controls Other bug fixes and clean ups: - fix overflow when handling .flags in inode_info - fix SPO issue during resize FS flow - fix compression with fsverity enabled - potential deadlock when writing compressed pages - show missing mount options" * tag 'f2fs-for-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (66 commits) f2fs: keep inline_data when compression conversion f2fs: fix to disable compression on directory f2fs: add missing CONFIG_F2FS_FS_COMPRESSION f2fs: switch discard_policy.timeout to bool type f2fs: fix to verify tpage before releasing in f2fs_free_dic() f2fs: show compression in statx f2fs: clean up dic->tpages assignment f2fs: compress: support zstd compress algorithm f2fs: compress: add .{init,destroy}_decompress_ctx callback f2fs: compress: fix to call missing destroy_compress_ctx() f2fs: change default compression algorithm f2fs: clean up {cic,dic}.ref handling f2fs: fix to use f2fs_readpage_limit() in f2fs_read_multi_pages() f2fs: xattr.h: Make stub helpers inline f2fs: fix to avoid double unlock f2fs: fix potential .flags overflow on 32bit architecture f2fs: fix NULL pointer dereference in f2fs_verity_work() f2fs: fix to clear PG_error if fsverity failed f2fs: don't call fscrypt_get_encryption_info() explicitly in f2fs_tmpfile() f2fs: don't trigger data flush in foreground operation ...
2020-04-07Documentation: driver-api/usb/writing_usb_driver.rst Updates documentation linksJoakim Lönnegren1-5/+2
In writing_usb_driver.rst: Remove link to https://www.qbik.ch/usb/devices/ since it seems to be inactive since 2013 Update link to linux-usb mailing list archive Signed-off-by: Joakim Lönnegren <joakimlonnegren@gmail.com> Link: https://lore.kernel.org/r/20200312201354.285839-1-joakimlonnegren@gmail.om Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-04-07docs: driver-api: address duplicate label warningLukas Bulwahn1-3/+0
Delete identically named subsection to fix Documentation warning: Documentation/driver-api/w1.rst:11: \ WARNING: duplicate label driver-api/w1:w1 api internal to the kernel, \ other instance in Documentation/driver-api/w1.rst Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Link: https://lore.kernel.org/r/20200330060132.7773-1-lukas.bulwahn@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-04-07Merge tag 'for-linus' of git://github.com/openrisc/linuxLinus Torvalds1-2/+2
Pull OpenRISC updates from Stafford Horne: "A few cleanups all over the place, things of note: - Enable the clone3 syscall - Remove CONFIG_CROSS_COMPILE from Krzysztof Kozlowski - Update to use mmgrab from Julia Lawall" * tag 'for-linus' of git://github.com/openrisc/linux: openrisc: Remove obsolete show_trace_task function openrisc: Cleanup copy_thread_tls docs and comments openrisc: Enable the clone3 syscall openrisc: Convert copy_thread to copy_thread_tls openrisc: use mmgrab openrisc: configs: Cleanup CONFIG_CROSS_COMPILE
2020-04-07Documentation: sysrq: fix RST formattingAlyssa Ross1-9/+11
"On x86" and "On SPARC" are now definition list terms, like "On PowerPC", "On other", and "On all". The Credits list is now a bulleted list, like lots of Credits lists in other files. This prevents the list from becoming a single long, unpunctuated sentence in the generated documentation. I also did a couple of other tiny readability improvements to the "How do I use the magic SysRq key?" section while I was there. Signed-off-by: Alyssa Ross <hi@alyssa.is> Link: https://lore.kernel.org/r/20200403170701.10852-1-hi@alyssa.is Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-04-07docs: kernel-parameters.txt: Fix broken referencesJimmy Assarsson1-2/+2
Fix remaining broken references in kernel-parameters.txt. Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Jimmy Assarsson <jimmyassarsson@gmail.com> Link: https://lore.kernel.org/r/20200402172614.3020-2-jimmyassarsson@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-04-07docs: kernel-parameters.txt: Remove nompxJimmy Assarsson1-4/+0
x86/mpx was removed in commit 45fc24e89b7c ("x86/mpx: remove MPX from arch/x86"), this removes the documentation of parameter nompx. Fixes: 45fc24e89b7c ("x86/mpx: remove MPX from arch/x86") Signed-off-by: Jimmy Assarsson <jimmyassarsson@gmail.com> Acked-by: Dave Hansen <dave.hansen@linux.intel.com> Link: https://lore.kernel.org/r/20200402172614.3020-1-jimmyassarsson@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-04-07docs: filesystems: fix typo in qnx6.rstVilhelm Prytz1-1/+1
- 'structer' replaced with 'structure' Signed-off-by: Vilhelm Prytz <vilhelm@prytznet.se> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-04-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds1-15/+14
Pull networking fixes from David Miller: 1) Slave bond and team devices should not be assigned ipv6 link local addresses, from Jarod Wilson. 2) Fix clock sink config on some at803x PHY devices, from Oleksij Rempel. 3) Uninitialized stack space transmitted in slcan frames, fix from Richard Palethorpe. 4) Guard HW VLAN ops properly in stmmac driver, from Jose Abreu. 5) "=" --> "|=" fix in aquantia driver, from Colin Ian King. 6) Fix TCP fallback in mptcp, from Florian Westphal. (accessing a plain tcp_sk as if it were an mptcp socket). 7) Fix cavium driver in some configurations wrt. PTP, from Yue Haibing. 8) Make ipv6 and ipv4 consistent in the lower bound allowed for neighbour entry retrans_time, from Hangbin Liu. 9) Don't use private workqueue in pegasus usb driver, from Petko Manolov. 10) Fix integer overflow in mlxsw, from Colin Ian King. 11) Missing refcnt init in cls_tcindex, from Cong Wang. 12) One too many loop iterations when processing cmpri entries in ipv6 rpl code, from Alexander Aring. 13) Disable SG and TSO by default in r8169, from Heiner Kallweit. 14) NULL deref in macsec, from Davide Caratti. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (42 commits) macsec: fix NULL dereference in macsec_upd_offload() skbuff.h: Improve the checksum related comments net: dsa: bcm_sf2: Ensure correct sub-node is parsed qed: remove redundant assignment to variable 'rc' wimax: remove some redundant assignments to variable result mlxsw: spectrum_flower: Do not stop at FLOW_ACTION_VLAN_MANGLE mlxsw: spectrum_flower: Do not stop at FLOW_ACTION_PRIORITY r8169: change back SG and TSO to be disabled by default net: dsa: bcm_sf2: Do not register slave MDIO bus with OF ipv6: rpl: fix loop iteration tun: Don't put_page() for all negative return values from XDP program net: dsa: mt7530: fix null pointer dereferencing in port5 setup mptcp: add some missing pr_fmt defines net: phy: micrel: kszphy_resume(): add delay after genphy_resume() before accessing PHY registers net_sched: fix a missing refcnt in tcindex_init() net: stmmac: dwmac1000: fix out-of-bounds mac address reg setting mlxsw: spectrum_trap: fix unintention integer overflow on left shift pegasus: Remove pegasus' own workqueue neigh: support smaller retrans_time settting net: openvswitch: use hlist_for_each_entry_rcu instead of hlist_for_each_entry ...
2020-04-07mm/zswap: allow setting default status, compressor and allocator in KconfigMaciej S. Szmigiero1-8/+12
The compressed cache for swap pages (zswap) currently needs from 1 to 3 extra kernel command line parameters in order to make it work: it has to be enabled by adding a "zswap.enabled=1" command line parameter and if one wants a different compressor or pool allocator than the default lzo / zbud combination then these choices also need to be specified on the kernel command line in additional parameters. Using a different compressor and allocator for zswap is actually pretty common as guides often recommend using the lz4 / z3fold pair instead of the default one. In such case it is also necessary to remember to enable the appropriate compression algorithm and pool allocator in the kernel config manually. Let's avoid the need for adding these kernel command line parameters and automatically pull in the dependencies for the selected compressor algorithm and pool allocator by adding an appropriate default switches to Kconfig. The default values for these options match what the code was using previously as its defaults. Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Vitaly Wool <vitaly.wool@konsulko.com> Link: http://lkml.kernel.org/r/20200202000112.456103-1-mail@maciej.szmigiero.name Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-07mm/memory_hotplug.c: only respect mem= parameter during boot stageBaoquan He1-2/+11
In commit 357b4da50a62 ("x86: respect memory size limiting via mem= parameter") a global varialbe max_mem_size is added to store the value parsed from 'mem= ', then checked when memory region is added. This truly stops those DIMMs from being added into system memory during boot-time. However, it also limits the later memory hotplug functionality. Any DIMM can't be hotplugged any more if its region is beyond the max_mem_size. We will get errors like: [ 216.387164] acpi PNP0C80:02: add_memory failed [ 216.389301] acpi PNP0C80:02: acpi_memory_enable_device() error [ 216.392187] acpi PNP0C80:02: Enumeration failure This will cause issue in a known use case where 'mem=' is added to the hypervisor. The memory that lies after 'mem=' boundary will be assigned to KVM guests. After commit 357b4da50a62 merged, memory can't be extended dynamically if system memory on hypervisor is not sufficient. So fix it by also checking if it's during boot-time restricting to add memory. Otherwise, skip the restriction. And also add this use case to document of 'mem=' kernel parameter. Fixes: 357b4da50a62 ("x86: respect memory size limiting via mem= parameter") Signed-off-by: Baoquan He <bhe@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Juergen Gross <jgross@suse.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: William Kucharski <william.kucharski@oracle.com> Cc: David Hildenbrand <david@redhat.com> Cc: Balbir Singh <bsingharora@gmail.com> Link: http://lkml.kernel.org/r/20200204050643.20925-1-bhe@redhat.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-07userfaultfd: wp: UFFDIO_REGISTER_MODE_WP documentation updateMartin Cracauer1-0/+51
Add documentation about the write protection support. [peterx@redhat.com: rewrite in rst format; fixups here and there] Signed-off-by: Martin Cracauer <cracauer@cons.org> Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Jerome Glisse <jglisse@redhat.com> Reviewed-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Bobby Powers <bobbypowers@gmail.com> Cc: Brian Geffon <bgeffon@google.com> Cc: David Hildenbrand <david@redhat.com> Cc: Denis Plotnikov <dplotnikov@virtuozzo.com> Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: "Kirill A . Shutemov" <kirill@shutemov.name> Cc: Marty McFadden <mcfadden8@llnl.gov> Cc: Maya Gokhale <gokhale2@llnl.gov> Cc: Mel Gorman <mgorman@suse.de> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Pavel Emelyanov <xemul@openvz.org> Cc: Rik van Riel <riel@redhat.com> Cc: Shaohua Li <shli@fb.com> Link: http://lkml.kernel.org/r/20200220163112.11409-17-peterx@redhat.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-07mm/page_reporting: add free page reporting documentationAlexander Duyck1-0/+40
Add documentation for free page reporting. Currently the only consumer is virtio-balloon, however it is possible that other drivers might make use of this so it is best to add a bit of documetation explaining at a high level how to use the API. Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: David Hildenbrand <david@redhat.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Luiz Capitulino <lcapitulino@redhat.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Nitesh Narayan Lal <nitesh@redhat.com> Cc: Oscar Salvador <osalvador@suse.de> Cc: Pankaj Gupta <pagupta@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Rik van Riel <riel@surriel.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Wei Wang <wei.w.wang@intel.com> Cc: Yang Zhang <yang.zhang.wz@gmail.com> Cc: wei qi <weiqi4@huawei.com> Link: http://lkml.kernel.org/r/20200211224730.29318.43815.stgit@localhost.localdomain Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-07mm, thp: track fallbacks due to failed memcg charges separatelyDavid Rientjes1-0/+10
The thp_fault_fallback and thp_file_fallback vmstats are incremented if either the hugepage allocation fails through the page allocator or the hugepage charge fails through mem cgroup. This patch leaves this field untouched but adds two new fields, thp_{fault,file}_fallback_charge, which is incremented only when the mem cgroup charge fails. This distinguishes between attempted hugepage allocations that fail due to fragmentation (or low memory conditions) and those that fail due to mem cgroup limits. That can be used to determine the impact of fragmentation on the system by excluding faults that failed due to memcg usage. Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Yang Shi <yang.shi@linux.alibaba.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Jeremy Cline <jcline@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Link: http://lkml.kernel.org/r/alpine.DEB.2.21.2003061422070.7412@chino.kir.corp.google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-07mm, shmem: add vmstat for hugepage fallbackDavid Rientjes1-0/+4
The existing thp_fault_fallback indicates when thp attempts to allocate a hugepage but fails, or if the hugepage cannot be charged to the mem cgroup hierarchy. Extend this to shmem as well. Adds a new thp_file_fallback to complement thp_file_alloc that gets incremented when a hugepage is attempted to be allocated but fails, or if it cannot be charged to the mem cgroup hierarchy. Additionally, remove the check for CONFIG_TRANSPARENT_HUGE_PAGECACHE from shmem_alloc_hugepage() since it is only called with this configuration option. Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Yang Shi <yang.shi@linux.alibaba.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Jeremy Cline <jcline@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Link: http://lkml.kernel.org/r/alpine.DEB.2.21.2003061421240.7412@chino.kir.corp.google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-07Documentation: cpu-idle-cooling: Fix diagram for 33% duty cycleSergey Vidishev1-2/+2
Signed-off-by: Sergey Vidishev <sergeyv@yandex-team.ru> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/2374188.AZIXMmL6Zy@sergeyv-box
2020-04-06Merge branch 'next' into for-linusDmitry Torokhov3-77/+127
Prepare input updates for 5.7 merge window.
2020-04-06Merge tag 'acpi-5.7-rc1-2' of ↵Linus Torvalds1-3/+5
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more ACPI updates from Rafael Wysocki: "Additional ACPI updates. These update the ACPICA code in the kernel to the 20200326 upstream revision, fix an ACPI-related CPU hotplug deadlock on x86, update Intel Tiger Lake device IDs in some places, add a new ACPI backlight blacklist entry, update the "acpi_backlight" kernel command line switch documentation and clean up a CPPC library routine. Specifics: - Update the ACPICA code in the kernel to upstream revision 20200326 including: * Fix for a typo in a comment field (Bob Moore) * acpiExec namespace init file fixes (Bob Moore) * Addition of NHLT to the known tables list (Cezary Rojewski) * Conversion of PlatformCommChannel ASL keyword to PCC (Erik Kaneda) * acpiexec cleanup (Erik Kaneda) * WSMT-related typo fix (Erik Kaneda) * sprintf() utility function fix (John Levon) * IVRS IVHD type 11h parsing implementation (Michał Żygowski) * IVRS IVHD type 10h reserved field name fix (Michał Żygowski) - Fix ACPI-related CPU hotplug deadlock on x86 (Qian Cai) - Fix Intel Tiger Lake ACPI device IDs in several places (Gayatri Kammela) - Add ACPI backlight blacklist entry for Acer Aspire 5783z (Hans de Goede) - Fix documentation of the "acpi_backlight" kernel command line switch (Randy Dunlap) - Clean up the acpi_get_psd_map() CPPC library routine (Liguang Zhang)" * tag 'acpi-5.7-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: x86: ACPI: fix CPU hotplug deadlock thermal: int340x_thermal: fix: Update Tiger Lake ACPI device IDs platform/x86: intel-hid: fix: Update Tiger Lake ACPI device ID ACPI: Update Tiger Lake ACPI device IDs ACPI: video: Use native backlight on Acer Aspire 5783z ACPI: video: Docs update for "acpi_backlight" kernel parameter options ACPICA: Update version 20200326 ACPICA: Fixes for acpiExec namespace init file ACPICA: Add NHLT table signature ACPICA: WSMT: Fix typo, no functional change ACPICA: utilities: fix sprintf() ACPICA: acpiexec: remove redeclaration of acpi_gbl_db_opt_no_region_support ACPICA: Change PlatformCommChannel ASL keyword to PCC ACPICA: Fix IVRS IVHD type 10h reserved field name ACPICA: Implement IVRS IVHD type 11h parsing ACPICA: Fix a typo in a comment field ACPI: CPPC: clean up acpi_get_psd_map()
2020-04-06Merge tag 'pm-5.7-rc1-2' of ↵Linus Torvalds3-0/+274
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more power management updates from Rafael Wysocki: "Additional power management updates. These fix a corner-case suspend-to-idle wakeup issue on systems where the ACPI SCI is shared with another wakeup source, add a kernel command line option to set pm_debug_messages via the kernel command line, add a document desctibing system-wide suspend and resume code flows, modify cpufreq Kconfig to choose schedutil as the preferred governor by default in a couple of cases and do some assorted cleanups. Specifics: - Fix corner-case suspend-to-idle wakeup issue on systems where the ACPI SCI is shared with another wakeup source (Hans de Goede). - Add document describing system-wide suspend and resume code flows to the admin guide (Rafael Wysocki). - Add kernel command line option to set pm_debug_messages (Chen Yu). - Choose schedutil as the preferred scaling governor by default on ARM big.LITTLE systems and on x86 systems using the intel_pstate driver in the passive mode (Linus Walleij, Rafael Wysocki). - Drop racy and redundant checks from the PM core's device_prepare() routine (Rafael Wysocki). - Make resume from hibernation take the hibernation_restore() return value into account (Dexuan Cui)" * tag 'pm-5.7-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: platform/x86: intel_int0002_vgpio: Use acpi_register_wakeup_handler() ACPI: PM: Add acpi_[un]register_wakeup_handler() Documentation: PM: sleep: Document system-wide suspend code flows cpufreq: Select schedutil when using big.LITTLE PM: sleep: Add pm_debug_messages kernel command line option PM: sleep: core: Drop racy and redundant checks from device_prepare() PM: hibernate: Propagate the return value of hibernation_restore() cpufreq: intel_pstate: Select schedutil as the default governor
2020-04-05Merge tag 'powerpc-5.7-1' of ↵Linus Torvalds7-6/+125
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: "Slightly late as I had to rebase mid-week to insert a bug fix: - A large series from Nick for 64-bit to further rework our exception vectors, and rewrite portions of the syscall entry/exit and interrupt return in C. The result is much easier to follow code that is also faster in general. - Cleanup of our ptrace code to split various parts out that had become badly intertwined with #ifdefs over the years. - Changes to our NUMA setup under the PowerVM hypervisor which should hopefully avoid non-sensical topologies which can lead to warnings from the workqueue code and other problems. - MAINTAINERS updates to remove some of our old orphan entries and update the status of others. - Quite a few other small changes and fixes all over the map. Thanks to: Abdul Haleem, afzal mohammed, Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V, Balamuruhan S, Cédric Le Goater, Chen Zhou, Christophe JAILLET, Christophe Leroy, Christoph Hellwig, Clement Courbet, Daniel Axtens, David Gibson, Douglas Miller, Fabiano Rosas, Fangrui Song, Ganesh Goudar, Gautham R. Shenoy, Greg Kroah-Hartman, Greg Kurz, Gustavo Luiz Duarte, Hari Bathini, Ilie Halip, Jan Kara, Joe Lawrence, Joe Perches, Kajol Jain, Larry Finger, Laurentiu Tudor, Leonardo Bras, Libor Pechacek, Madhavan Srinivasan, Mahesh Salgaonkar, Masahiro Yamada, Masami Hiramatsu, Mauricio Faria de Oliveira, Michael Neuling, Michal Suchanek, Mike Rapoport, Nageswara R Sastry, Nathan Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Nick Desaulniers, Oliver O'Halloran, Po-Hsu Lin, Pratik Rajesh Sampat, Rasmus Villemoes, Ravi Bangoria, Roman Bolshakov, Sam Bobroff, Sandipan Das, Santosh S, Sedat Dilek, Segher Boessenkool, Shilpasri G Bhat, Sourabh Jain, Srikar Dronamraju, Stephen Rothwell, Tyrel Datwyler, Vaibhav Jain, YueHaibing" * tag 'powerpc-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (158 commits) powerpc: Make setjmp/longjmp signature standard powerpc/cputable: Remove unnecessary copy of cpu_spec->oprofile_type powerpc: Suppress .eh_frame generation powerpc: Drop -fno-dwarf2-cfi-asm powerpc/32: drop unused ISA_DMA_THRESHOLD powerpc/powernv: Add documentation for the opal sensor_groups sysfs interfaces selftests/powerpc: Fix try-run when source tree is not writable powerpc/vmlinux.lds: Explicitly retain .gnu.hash powerpc/ptrace: move ptrace_triggered() into hw_breakpoint.c powerpc/ptrace: create ppc_gethwdinfo() powerpc/ptrace: create ptrace_get_debugreg() powerpc/ptrace: split out ADV_DEBUG_REGS related functions. powerpc/ptrace: move register viewing functions out of ptrace.c powerpc/ptrace: split out TRANSACTIONAL_MEM related functions. powerpc/ptrace: split out SPE related functions. powerpc/ptrace: split out ALTIVEC related functions. powerpc/ptrace: split out VSX related functions. powerpc/ptrace: drop PARAMETER_SAVE_AREA_OFFSET powerpc/ptrace: drop unnecessary #ifdefs CONFIG_PPC64 powerpc/ptrace: remove unused header includes ...
2020-04-05Merge tag 'ext4_for_linus' of ↵Linus Torvalds1-2/+4
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 updates from Ted Ts'o: - Replace ext4's bmap and iopoll implementations to use iomap. - Clean up extent tree handling. - Other cleanups and miscellaneous bug fixes * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (31 commits) ext4: save all error info in save_error_info() and drop ext4_set_errno() ext4: fix incorrect group count in ext4_fill_super error message ext4: fix incorrect inodes per group in error message ext4: don't set dioread_nolock by default for blocksize < pagesize ext4: disable dioread_nolock whenever delayed allocation is disabled ext4: do not commit super on read-only bdev ext4: avoid ENOSPC when avoiding to reuse recently deleted inodes ext4: unregister sysfs path before destroying jbd2 journal ext4: check for non-zero journal inum in ext4_calculate_overhead ext4: remove map_from_cluster from ext4_ext_map_blocks ext4: clean up ext4_ext_insert_extent() call in ext4_ext_map_blocks() ext4: mark block bitmap corrupted when found instead of BUGON ext4: use flexible-array member for xattr structs ext4: use flexible-array member in struct fname Documentation: correct the description of FIEMAP_EXTENT_LAST ext4: move ext4_fiemap to use iomap framework ext4: make ext4_ind_map_blocks work with fiemap ext4: move ext4 bmap to use iomap infrastructure ext4: optimize ext4_ext_precache for 0 depth ext4: add IOMAP_F_MERGED for non-extent based mapping ...
2020-04-05Merge tag 'clk-for-linus' of ↵Linus Torvalds20-324/+720
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk updates from Stephen Boyd: "There's not much to see in the core framework this time around. Instead the majority of the diff is the normal collection of driver additions for new SoCs and non-critical clk data fixes and updates. The framework must be middle aged. The two biggest directories in the diffstat show that the Qualcomm and Unisoc support added a handful of big drivers for new SoCs but that's not really the whole story because those new drivers tend to add large numbers of lines of clk data. There's a handful of AT91 clk drivers added this time around too and a bunch of improvements to drivers like the i.MX driver. All around lots of updates and fixes in various clk drivers which is good to see. The core framework has only one real major change which has been baking in next for the past couple months. It fixes the framework so that it stops caching a clk's phase when the phase clk_op returns an error. Before this change we would consider some negative errno as a phase and that just doesn't make sense. Core: - Don't show clk phase when it is invalid New Drivers: - Add support for Unisoc SC9863A clks - Qualcomm SM8250 RPMh and MSM8976 RPM clks - Qualcomm SM8250 Global Clock Controller (GCC) support - Qualcomm SC7180 Modem Clock Controller (MSS CC) support - EHRPWM's TimeBase clock(TBCLK) for TI AM654 SoCs - Support PMC clks on at91sam9n12, at91rm9200, sama5d3, and at91sam9g45 SoCs Updates: - GPU GX GDSC support on Qualcomm sc7180 - Fixes and improvements for the Marvell MMP2/MMP3 SoC clk drivers - A series from Anson to convert i.MX8 clock bindings to json-schema - Update i.MX pll14xx driver to include new frequency entries for pll1443x table, and return error for invalid PLL type - Add missing of_node_put() call for a number of i.MX clock drivers - Drop flag CLK_IS_CRITICAL from 'A53_CORE' mux clock, as we already have the flag on its child cpu clock - Fix a53 cpu clock for i.MX8 drivers to get it source from ARM PLL via CORE_SEL slice, and source from A53 CCM clk root when we need to change ARM PLL frequency. Thus, we can support core running above 1GHz safely - Update i.MX pfdv2 driver to check zero rate and use determine_rate for getting the best rate - Add CLKO2 for imx8mm, SNVS clock for imx8mn, and PXP clock for imx7d - Remove PMC clks from Tegra clk driver - Improved clock/reset handling for the Renesas R-Car USB2 Clock Selector - Conversion to json-schema of the Renesas CPG/MSSR DT bindings - Add Crypto clocks on Renesas R-Car M3-W/W+, M3-N, E3, and D3 - Add RPC (QSPI/HyperFLASH) clocks on Renesas R-Car H3, M3-W/W+, and M3-N - Update Amlogic audio clock gate hierarchy for meson8 and gxbb - Update Amlogic g12a spicc clock sources - Support for Ingenic X1000 TCU clks" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (146 commits) clk: sprd: fix to get a correct ibias of pll dt-bindings: imx8mm-clock: Fix the file path dt-bindings: imx8mq-clock: Fix the file path clk: qcom: rpmh: Drop unnecessary semicolons clk: qcom: rpmh: Simplify clk_rpmh_bcm_send_cmd() clk: tegra: Use NULL for pointer initialization clk: sprd: add clocks support for SC9863A clk: sprd: support to get regmap from parent node clk: sprd: Add macros for referencing parents without strings clk: sprd: Add dt-bindings include file for SC9863A dt-bindings: clk: sprd: add bindings for sc9863a clock controller dt-bindings: clk: sprd: rename the common file name sprd.txt to SoC specific clk: sprd: add gate for pll clocks MAINTAINERS: dt: update reference for arm-integrator.txt clk: mmp2: Fix bit masks for LCDC I/O and pixel clocks clk: mmp2: Add clock for fifth SD HCI on MMP3 dt-bindings: marvell,mmp2: Add clock id for the fifth SD HCI on MMP3 clk: mmp2: Add clocks for the thermal sensors dt-bindings: marvell,mmp2: Add clock ids for the thermal sensors clk: mmp2: add the GPU clocks ...
2020-04-05Merge tag 'trace-v5.7' of ↵Linus Torvalds1-16/+66
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: "New tracing features: - The ring buffer is no longer disabled when reading the trace file. The trace_pipe file was made to be used for live tracing and reading as it acted like the normal producer/consumer. As the trace file would not consume the data, the easy way of handling it was to just disable writes to the ring buffer. This came to a surprise to the BPF folks who complained about lost events due to reading. This is no longer an issue. If someone wants to keep the old disabling there's a new option "pause-on-trace" that can be set. - New set_ftrace_notrace_pid file. PIDs in this file will not be traced by the function tracer. Similar to set_ftrace_pid, which makes the function tracer only trace those tasks with PIDs in the file, the set_ftrace_notrace_pid does the reverse. - New set_event_notrace_pid file. PIDs in this file will cause events not to be traced if triggered by a task with a matching PID. Similar to the set_event_pid file but will not be traced. Note, sched_waking and sched_switch events may still be traced if one of the tasks referenced by those events contains a PID that is allowed to be traced. Tracing related features: - New bootconfig option, that is attached to the initrd file. If bootconfig is on the command line, then the initrd file is searched looking for a bootconfig appended at the end. - New GPU tracepoint infrastructure to help the gfx drivers to get off debugfs (acked by Greg Kroah-Hartman) And other minor updates and fixes" * tag 'trace-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (27 commits) tracing: Do not allocate buffer in trace_find_next_entry() in atomic tracing: Add documentation on set_ftrace_notrace_pid and set_event_notrace_pid selftests/ftrace: Add test to test new set_event_notrace_pid file selftests/ftrace: Add test to test new set_ftrace_notrace_pid file tracing: Create set_event_notrace_pid to not trace tasks ftrace: Create set_ftrace_notrace_pid to not trace tasks ftrace: Make function trace pid filtering a bit more exact ftrace/kprobe: Show the maxactive number on kprobe_events tracing: Have the document reflect that the trace file keeps tracing enabled ring-buffer/tracing: Have iterator acknowledge dropped events tracing: Do not disable tracing when reading the trace file ring-buffer: Do not disable recording when there is an iterator ring-buffer: Make resize disable per cpu buffer instead of total buffer ring-buffer: Optimize rb_iter_head_event() ring-buffer: Do not die if rb_iter_peek() fails more than thrice ring-buffer: Have rb_iter_head_event() handle concurrent writer ring-buffer: Add page_stamp to iterator for synchronization ring-buffer: Rename ring_buffer_read() to read_buffer_iter_advance() ring-buffer: Have ring_buffer_empty() not depend on tracing stopped tracing: Save off entry when peeking at next entry ...
2020-04-04Merge tag 'rtc-5.7' of ↵Linus Torvalds3-37/+97
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "More cleanup this cycle, with the final goal of removing the rtc_time_to_tm and rtc_tm_to_time wrappers. All the drivers that have been modified for this now are ready for the end of times (whether it happens in 2033, 2038, 2106, 2127 or even 4052). There is also a single new driver and the usual fixes and features. Summary: Subsystem: - The rtc_time_to_tm and rtc_tm_to_time wrappers have finally been removed and only the 64bit version remain. - hctosys now works with drivers compiled as modules New driver: - MediaTek MT2712 SoC based RTC Drivers: - set range for 88pm860x, au1xxx, cpcap, da9052, davinci, ds1305, ds1374, mcp5121, pl030, pl031, pm8xxx, puv3, sa1100, sirfsoc, starfire, sun6i - ds1307: DS1388 oscillator failure detection and watchdog support - jz4740: JZ4760 support - pcf85063: clock out pin support - sun6i: external 32k oscillator is now optional, the range is now handled by the core, providing a solution for 2034" * tag 'rtc-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (87 commits) rtc: ds1307: check for failed memory allocation on wdt rtc: class: remove redundant assignment to variable err rtc: remove rtc_time_to_tm and rtc_tm_to_time rtc: sun6i: let the core handle rtc range rtc: sun6i: switch to rtc_time64_to_tm/rtc_tm_to_time64 rtc: ds1307: add support for watchdog timer on ds1388 rtc: da9052: switch to rtc_time64_to_tm/rtc_tm_to_time64 rtc: da9052: set range rtc: da9052: convert to devm_rtc_allocate_device rtc: imx-sc: Align imx sc msg structs to 4 rtc: fsl-ftm-alarm: report alarm to core rtc: pcf85063: Add pcf85063 clkout control to common clock framework rtc: make definitions in include/uapi/linux/rtc.h actually useful for user space rtc: class: avoid unnecessary lookup in hctosys dt-bindings: rtc: Convert and update jz4740-rtc doc to YAML rtc: jz4740: Rename vendor-specific DT properties rtc: jz4740: Add support for JZ4760 SoC rtc: class: support hctosys from modular RTC drivers rtc: pm8xxx: clear alarm register when alarm is not enabled rtc: omap: drop unused dt-bindings header ...
2020-04-04Merge tag 'gpio-v5.7-1' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO updates from Linus Walleij: "This is the bulk of GPIO development for the v5.7 kernel cycle. Core and userspace API: - The userspace API KFIFOs have been imoproved with locks that do not block interrupts. This makes us better at getting events to userspace without blocking or disturbing new events arriving in the same time. This was reviewed by the KFIFO maintainer Stefani. This is a generic improvement which paves the road for similar improvements in other subsystems. - We provide a new ioctl() for monitoring changes in the line information, such as when multiple clients are taking lines and giving them back, possibly reconfiguring them in the process: we can now monitor that and not get stuck with stale static information. - An example tool 'gpio-watch' is provided to showcase this functionality. - Timestamps for events are switched to ktime_get_ns() which is monotonic. We previously had a 'realtime' stamp which could move forward and *backward* in time, which probably would just cause silent bugs and weird behaviour. In the long run we see two relevant timestamps: ktime_get_ns() or the timestamp sometimes provided by the GPIO hardware itself, if that exists. - Device Tree overlay support for GPIO hogs. On systems that load overlays, these overlays can now contain hogs, and will then be respected. - Handle pin control interaction with nonexisting pin ranges in the GPIO library core instead of in the individual drivers. New drivers: - New driver for the Mellanox BlueField 2 GPIO controller. Driver improvements: - Introduce the BGPIOF_NO_SET_ON_INPUT flag to the generic MMIO GPIO library and use this flag in the MT7621 driver. - Texas Instruments OMAP CPU power management improvements, such as blocking of idle on pending GPIO interrupts" * tag 'gpio-v5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (59 commits) Revert "gpio: eic-sprd: Use devm_platform_ioremap_resource()" pinctrl: Unconditionally assign .request()/.free() gpio: Unconditionally assign .request()/.free() gpio: export of_pinctrl_get to modules pinctrl: Define of_pinctrl_get() dummy for !PINCTRL gpio: Rename variable in core APIs gpio: Avoid using pin ranges with !PINCTRL gpiolib: Remove unused gpio_chip parameter from gpio_set_bias() gpiolib: Pass gpio_desc to gpio_set_config() gpiolib: Introduce gpiod_set_config() tools: gpio: Fix out-of-tree build regression gpio: gpiolib: fix a doc warning gpio: tegra186: Add Tegra194 pin ranges for GG.0 and GG.1 gpio: tegra186: Add support for pin ranges gpio: Support GPIO controllers without pin-ranges ARM: integrator: impd1: Use GPIO_LOOKUP() helper macro gpio: brcmstb: support gpio-line-names property tools: gpio: Fix typo in gpio-utils tools: gpio-hammer: Apply scripts/Lindent and retain good changes gpiolib: gpio_name_to_desc: factor out !name check ...
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