- 01 Oct, 2020 1 commit
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Michał Mirosław authored
Use regmap accessors directly for register manipulation - removing one layer of abstraction. Signed-off-by:
Michał Mirosław <mirq-linux@rere.qmqm.pl> Link: https://lore.kernel.org/r/e82886d0f8f5131c9fccf2a17e3a15acce507d6f.1601164493.git.mirq-linux@rere.qmqm.plSigned-off-by:
Mark Brown <broonie@kernel.org>
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- 30 Sep, 2020 2 commits
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ChiYuan Huang authored
Add missing regcache cache only before masked as dirty. Signed-off-by:
ChiYuan Huang <cy_huang@richtek.com> Link: https://lore.kernel.org/r/1601461132-15251-1-git-send-email-u0084500@gmail.comSigned-off-by:
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ChiYuan Huang authored
1. Add vendor suffix to all proprietary properties. 2. Fix typo. 3. Change lsw to normal property, not pattern property. 4. Due to item 1, modify source code for property parsing. Signed-off-by:
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- 28 Sep, 2020 6 commits
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Mark Brown authored
Three simple patches to aid in debugging regulators. Michał Mirosław (3): regulator: print state at boot regulator: print symbolic errors in kernel messages regulator: resolve supply after creating regulator drivers/regulator/core.c | 124 ++++++++++++++++++++++----------------- 1 file changed, 69 insertions(+), 55 deletions(-) -- 2.20.1
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ChiYuan Huang authored
Add DT-binding document for Richtek RTMV20 Signed-off-by:
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ChiYuan Huang authored
Add support for Richtek RTMV20 load switch regulator. Signed-off-by:
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Michał Mirosław authored
When creating a new regulator its supply cannot create the sysfs link because the device is not yet published. Remove early supply resolving since it will be done later anyway. This makes the following error disappear and the symlinks get created instead. DCDC_REG1: supplied by VSYS VSYS: could not add device link regulator.3 err -2 Note: It doesn't fix the problem for bypassed regulators, though. Fixes: 45389c47 ("regulator: core: Add early supply resolution for regulators") Signed-off-by:
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Michał Mirosław authored
Change all error-printing messages to include error name via %pe instead of numeric error or nothing. Signed-off-by:
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Michał Mirosław authored
Make the initial state of the regulator shown when debugging. Signed-off-by:
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- 21 Sep, 2020 4 commits
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Krzysztof Kozlowski authored
The driver was using subsys_initcall() because in old times deferred probe was not supported everywhere and specific ordering was needed. Since probe deferral works fine and specific ordering is discouraged (hides dependencies between drivers and couples their boot order), the driver can be converted to regular module_platform_driver. Signed-off-by:
Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200921203616.19623-1-krzk@kernel.orgSigned-off-by:
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Krzysztof Kozlowski authored
Most of Maxim and Samsung PMIC/MUIC regulator drivers can be compile tested to increase build coverage. This allows to build them on configurations without I2C (as I2C is required by dependency - parent MFD driver). Signed-off-by:
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Colin Ian King authored
There is a return statement that is indented with an extra space, fix this by removing it. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20200920142454.33352-1-colin.king@canonical.comSigned-off-by:
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Michał Mirosław authored
regulator_lock/unlock() was used only to guard regulator_notifier_call_chain(). As no users remain, make the functions internal. Signed-off-by:
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- 17 Sep, 2020 3 commits
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Mark Brown authored
Merge series "Support ROHM BD9576MUF and BD9573MUF PMICs" from Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>: Initial support for ROHM BD9576MUF and BD9573MUF PMICs. These PMICs are primarily intended to be used to power the R-Car family processors. BD9576MUF includes some additional safety features the BD9573MUF does not have. This initial version of drivers does not utilize these features and for now the SW behaviour is identical. Please note that this version of drivers is only tested on BD9576MUF but according to the data-sheets the relevant parts of registers should be same so drivers should also work on BD9573MUF. This patch series includes MFD, watchdog and regulator drivers with basic functionality such as: - Enabling and pinging the watchdog - configuring watchog timeout / window from device-tree - reading regulator states/voltages - enabling/disabling VOUT1 (VD50) when control mode B is used. This patch series does not bring interrupt support. BD9576MUF and BD9573MUF are designed to keep the IRQ line low for whole duration of error condition. IRQ can't be 'acked'. So proper IRQ support would require some IRQ limiter implementation (delayed unmask?) in order to not hog the CPU. --- Matti Vaittinen (6): dt_bindings: mfd: Add ROHM BD9576MUF and BD9573MUF PMICs dt_bindings: regulator: Add ROHM BD9576MUF and BD9573MUF PMICs mfd: Support ROHM BD9576MUF and BD9573MUF wdt: Support wdt on ROHM BD9576MUF and BD9573MUF regulator: Support ROHM BD9576MUF and BD9573MUF MAINTAINERS: Add ROHM BD9576MUF and BD9573MUF drivers .../bindings/mfd/rohm,bd9576-pmic.yaml | 129 +++++++ .../regulator/rohm,bd9576-regulator.yaml | 33 ++ MAINTAINERS | 4 + drivers/mfd/Kconfig | 11 + drivers/mfd/Makefile | 1 + drivers/mfd/rohm-bd9576.c | 130 +++++++ drivers/regulator/Kconfig | 10 + drivers/regulator/Makefile | 1 + drivers/regulator/bd9576-regulator.c | 337 ++++++++++++++++++ drivers/watchdog/Kconfig | 13 + drivers/watchdog/Makefile | 1 + drivers/watchdog/bd9576_wdt.c | 295 +++++++++++++++ include/linux/mfd/rohm-bd957x.h | 61 ++++ include/linux/mfd/rohm-generic.h | 2 + 14 files changed, 1028 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/rohm,bd9576-pmic.yaml create mode 100644 Documentation/devicetree/bindings/regulator/rohm,bd9576-regulator.yaml create mode 100644 drivers/mfd/rohm-bd9576.c create mode 100644 drivers/regulator/bd9576-regulator.c create mode 100644 drivers/watchdog/bd9576_wdt.c create mode 100644 include/linux/mfd/rohm-bd957x.h base-commit: f4d51dff -- 2.21.0 -- Matti Vaittinen, Linux device drivers ROHM Semiconductors, Finland SWDC Kiviharjunlenkki 1E 90220 OULU FINLAND ~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~ Simon says - in Latin please. ~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~ Thanks to Simon Glass for the translation =]
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Matti Vaittinen authored
Add initial support for ROHM BD9576MUF and BD9573MUF PMICs regulators. These PMICs are mainly used to power the R-Car series processors. The BD9576 includes some functional-safety features which are not present on BD9573. Signed-off-by:
Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Link: https://lore.kernel.org/r/78baea1d7922506827ca717e277e4e6b391bbb78.1600329307.git.matti.vaittinen@fi.rohmeurope.comSigned-off-by:
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Matti Vaittinen authored
Add bindings for regulators on ROHM BD9576MUF and BD9573MUF PMICs. Signed-off-by:
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- 14 Sep, 2020 5 commits
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Rikard Falkeborn authored
The only usage of ti_abb_reg_ops is to assign its address to the ops field in the regulator_desc struct, which is a const pointer. Make it const to allow the compiler to put it in read-only memory. Signed-off-by:
Rikard Falkeborn <rikard.falkeborn@gmail.com> Link: https://lore.kernel.org/r/20200913084114.8851-6-rikard.falkeborn@gmail.comSigned-off-by:
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Rikard Falkeborn authored
The only usages of these is to assign their address to the ops field in the regulator_desc struct, which is a const pointer. Make them const to allow the compiler to put them in read-only memory. Signed-off-by:
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Rikard Falkeborn authored
The only usage of stw481x_vmmc_ops is to assign its address to the ops field in the regulator_desc struct which is a const pointer. The only usage of vmmc_regulator is to pass its address to of_get_regulator_init_data() and devm_regulator_register(), both which take const pointers. Make both of them const to allow the compiler to put them in read-only memory. Signed-off-by:
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Rikard Falkeborn authored
The only usage of fixed_voltage_ops and fixed_voltage_clkenabled_ops is to assign their address the ops field in the regulator_desc struct, which is a const pointer. Make them const to allow the compiler to put them in read-only memory. make them const to allow the compiler to put them in read-only memory. Signed-off-by:
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Rikard Falkeborn authored
The only usage of dummy_initdata is to assign its address to the init_data field of the regulator_config struct and the only usage dummy_ops is to assign its address to the ops field in the regulator_desc struct, both which are const pointers. Make them const to allow the compiler to put them in read-only memory. Signed-off-by:
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- 10 Sep, 2020 2 commits
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Jisheng Zhang authored
Convert the mp886x binding to DT schema format using json-schema. Signed-off-by:
Jisheng Zhang <Jisheng.Zhang@synaptics.com> Reviewed-by:
Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200827150640.267f6edc@xhacker.debianSigned-off-by:
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YueHaibing authored
Fix sparse warnings: drivers/regulator/bd718x7-regulator.c:576:28: warning: symbol 'bd71847_swcontrol_ops' was not declared. Should it be static? drivers/regulator/bd718x7-regulator.c:585:28: warning: symbol 'bd71847_hwcontrol_ops' was not declared. Should it be static? drivers/regulator/bd718x7-regulator.c:902:28: warning: symbol 'bd71837_swcontrol_ops' was not declared. Should it be static? drivers/regulator/bd718x7-regulator.c:913:28: warning: symbol 'bd71837_hwcontrol_ops' was not declared. Should it be static? Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
YueHaibing <yuehaibing@huawei.com> Acked-By:
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- 07 Sep, 2020 5 commits
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Mark Brown authored
Merge series "regulator: unexport regulator_lock/unlock()" from Michał Mirosław <mirq-linux@rere.qmqm.pl>: This removes regulator_lock/unlock() calls around regulator_notifier_call_chain() as they are redundant - drivers already have to guarantee regulator_dev's existence during the call. This should make reasoing about the lock easier, as this was the only use outside regulator core code. The only client that needed recursive locking from the notifier chain was drivers/usb/host/ohci-da8xx.c, which responds to over-current notification by calling regulator_disable(). Michał Mirosław (3): regulator: don't require mutex for regulator_notifier_call_chain() regulator: remove locking around regulator_notifier_call_chain() regulator: unexport regulator_lock/unlock() drivers/regulator/core.c | 11 +++-------- drivers/regulator/da9055-regulator.c | 2 -- drivers/regulator/da9062-regulator.c | 2 -- drivers/regulator/da9063-regulator.c | 2 -- drivers/regulator/da9210-regulator.c | 4 ---- drivers/regulator/da9211-regulator.c | 4 ---- drivers/regulator/lp8755.c | 6 ------ drivers/regulator/ltc3589.c | 10 ++-------- drivers/regulator/ltc3676.c | 10 ++-------- drivers/regulator/pv88060-regulator.c | 10 ++-------- drivers/regulator/pv88080-regulator.c | 10 ++-------- drivers/regulator/pv88090-regulator.c | 10 ++-------- drivers/regulator/slg51000-regulator.c | 4 ---- drivers/regulator/stpmic1_regulator.c | 4 ---- drivers/regulator/wm831x-dcdc.c | 4 ---- drivers/regulator/wm831x-isink.c | 2 -- drivers/regulator/wm831x-ldo.c | 2 -- drivers/regulator/wm8350-regulator.c | 2 -- include/linux/regulator/driver.h | 3 --- 19 files changed, 13 insertions(+), 89 deletions(-) -- 2.20.1
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Charles Keepax authored
In the case of an unrecognised mini-card the Lochnagar will not initialise the VDDCORE voltage register leading to a value outside of the current range. Add an additional range to cover these values, initially this wasn't done since they are duplicates of the existing minimum value. Signed-off-by:
Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://lore.kernel.org/r/20200904122506.28017-1-ckeepax@opensource.cirrus.comSigned-off-by:
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Michał Mirosław authored
regulator_notifier_call_chain() doesn't need rdev lock and rdev's existence is assumed in the code anyway. Remove the locks from drivers. Signed-off-by:
Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Reviewed-by:
Dmitry Osipenko <digetx@gmail.com> Link: https://lore.kernel.org/r/42393f66dcc4d80dcd9797be45216b4035aa96cb.1597032945.git.mirq-linux@rere.qmqm.plSigned-off-by:
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Michał Mirosław authored
Since 3801b86a ("regulator: Refactor supply implementation to work as regular consumers") we no longer cascade notifications and so notifier head's built-in rwsem is enough to protect the notifier chain. Remove the requirement to fix one case where rdev->mutex might be forced to be taken recursively. Signed-off-by:
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Linus Torvalds authored
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- 06 Sep, 2020 4 commits
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull more io_uring fixes from Jens Axboe: "Two followup fixes. One is fixing a regression from this merge window, the other is two commits fixing cancelation of deferred requests. Both have gone through full testing, and both spawned a few new regression test additions to liburing. - Don't play games with const, properly store the output iovec and assign it as needed. - Deferred request cancelation fix (Pavel)" * tag 'io_uring-5.9-2020-09-06' of git://git.kernel.dk/linux-block: io_uring: fix linked deferred ->files cancellation io_uring: fix cancel of deferred reqs with ->files io_uring: fix explicit async read/write mapping for large segments -
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommuLinus Torvalds authored
Pull iommu fixes from Joerg Roedel: - three Intel VT-d fixes to fix address handling on 32bit, fix a NULL pointer dereference bug and serialize a hardware register access as required by the VT-d spec. - two patches for AMD IOMMU to force AMD GPUs into translation mode when memory encryption is active and disallow using IOMMUv2 functionality. This makes the AMDGPU driver work when memory encryption is active. - two more fixes for AMD IOMMU to fix updating the Interrupt Remapping Table Entries. - MAINTAINERS file update for the Qualcom IOMMU driver. * tag 'iommu-fixes-v5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/vt-d: Handle 36bit addressing for x86-32 iommu/amd: Do not use IOMMUv2 functionality when SME is active iommu/amd: Do not force direct mapping when SME is active iommu/amd: Use cmpxchg_double() when updating 128-bit IRTE iommu/amd: Restore IRTE.RemapEn bit after programming IRTE iommu/vt-d: Fix NULL pointer dereference in dev_iommu_priv_set() iommu/vt-d: Serialize IOMMU GCMD register modifications MAINTAINERS: Update QUALCOMM IOMMU after Arm SMMU drivers move
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Ingo Molnar: - more generic entry code ABI fallout - debug register handling bugfixes - fix vmalloc mappings on 32-bit kernels - kprobes instrumentation output fix on 32-bit kernels - fix over-eager WARN_ON_ONCE() on !SMAP hardware - NUMA debugging fix - fix Clang related crash on !RETPOLINE kernels * tag 'x86-urgent-2020-09-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/entry: Unbreak 32bit fast syscall x86/debug: Allow a single level of #DB recursion x86/entry: Fix AC assertion tracing/kprobes, x86/ptrace: Fix regs argument order for i386 x86, fakenuma: Fix invalid starting node ID x86/mm/32: Bring back vmalloc faulting on x86_32 x86/cmdline: Disable jump tables for cmdline.c
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tipLinus Torvalds authored
Pull xen updates from Juergen Gross: "A small series for fixing a problem with Xen PVH guests when running as backends (e.g. as dom0). Mapping other guests' memory is now working via ZONE_DEVICE, thus not requiring to abuse the memory hotplug functionality for that purpose" * tag 'for-linus-5.9-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen: add helpers to allocate unpopulated memory memremap: rename MEMORY_DEVICE_DEVDAX to MEMORY_DEVICE_GENERIC xen/balloon: add header guard
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- 05 Sep, 2020 8 commits
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Pavel Begunkov authored
While looking for ->files in ->defer_list, consider that requests there may actually be links. Signed-off-by:
Pavel Begunkov <asml.silence@gmail.com> Signed-off-by:
Jens Axboe <axboe@kernel.dk>
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Pavel Begunkov authored
While trying to cancel requests with ->files, it also should look for requests in ->defer_list, otherwise it might end up hanging a thread. Cancel all requests in ->defer_list up to the last request there with matching ->files, that's needed to follow drain ordering semantics. Signed-off-by:
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Linus Torvalds authored
Merge tags 'auxdisplay-for-linus-v5.9-rc4', 'clang-format-for-linus-v5.9-rc4' and 'compiler-attributes-for-linus-v5.9-rc4' of git://github.com/ojeda/linux Pull misc fixes from Miguel Ojeda: "A trivial patch for auxdisplay: - Replace HTTP links with HTTPS ones (Alexander A. Klimov) The usual clang-format trivial update: - Update with the latest for_each macro list (Miguel Ojeda) And Luc requested me to pick a sparse fix on my queue, so here it goes along with other two trivial Compiler Attributes ones (also from Luc). - sparse: use static inline for __chk_{user,io}_ptr() (Luc Van Oostenryck) - Compiler Attributes: fix comment concerning GCC 4.6 (Luc Van Oostenryck) - Compiler Attributes: remove comment about sparse not supporting __has_attribute (Luc Van Oostenryck)" * tag 'auxdisplay-for-linus-v5.9-rc4' of git://github.com/ojeda/linux: auxdisplay: Replace HTTP links with HTTPS ones * tag 'clang-format-for-linus-v5.9-rc4' of git://github.com/ojeda/linux: clang-format: Update with the latest for_each macro list * tag 'compiler-attributes-for-linus-v5.9-rc4' of git://github.com/ojeda/linux: sparse: use static inline for __chk_{user,io}_ptr() Compiler Attributes: fix comment concerning GCC 4.6 Compiler Attributes: remove comment about sparse not supporting __has_attribute
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git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arcLinus Torvalds authored
Pull ARC fixes from Vineet Gupta: - HSDK-4xd Dev system: perf driver updates for sampling interrupt - HSDK* Dev System: Ethernet broken [Evgeniy Didin] - HIGHMEM broken (2 memory banks) [Mike Rapoport] - show_regs() rewrite once and for all - Other minor fixes * tag 'arc-5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: ARC: [plat-hsdk]: Switch ethernet phy-mode to rgmii-id arc: fix memory initialization for systems with two memory banks irqchip/eznps: Fix build error for !ARC700 builds ARC: show_regs: fix r12 printing and simplify ARC: HSDK: wireup perf irq ARC: perf: don't bail setup if pct irq missing in device-tree ARC: pgalloc.h: delete a duplicated word + other fixes
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Linus Torvalds authored
Merge misc fixes from Andrew Morton: "19 patches. Subsystems affected by this patch series: MAINTAINERS, ipc, fork, checkpatch, lib, and mm (memcg, slub, pagemap, madvise, migration, hugetlb)" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: include/linux/log2.h: add missing () around n in roundup_pow_of_two() mm/khugepaged.c: fix khugepaged's request size in collapse_file mm/hugetlb: fix a race between hugetlb sysctl handlers mm/hugetlb: try preferred node first when alloc gigantic page from cma mm/migrate: preserve soft dirty in remove_migration_pte() mm/migrate: remove unnecessary is_zone_device_page() check mm/rmap: fixup copying of soft dirty and uffd ptes mm/migrate: fixup setting UFFD_WP flag mm: madvise: fix vma user-after-free checkpatch: fix the usage of capture group ( ... ) fork: adjust sysctl_max_threads definition to match prototype ipc: adjust proc_ipc_sem_dointvec definition to match prototype mm: track page table modifications in __apply_to_page_range() MAINTAINERS: IA64: mark Status as Odd Fixes only MAINTAINERS: add LLVM maintainers MAINTAINERS: update Cavium/Marvell entries mm: slub: fix conversion of freelist_corrupted() mm: memcg: fix memcg reclaim soft lockup memcg: fix use-after-free in uncharge_batch
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Jason Gunthorpe authored
Otherwise gcc generates warnings if the expression is complicated. Fixes: 312a0c17 ("[PATCH] LOG2: Alter roundup_pow_of_two() so that it can use a ilog2() on a constant") Signed-off-by:
Jason Gunthorpe <jgg@nvidia.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Link: https://lkml.kernel.org/r/0-v1-8a2697e3c003+41165-log_brackets_jgg@nvidia.comSigned-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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David Howells authored
collapse_file() in khugepaged passes PAGE_SIZE as the number of pages to be read to page_cache_sync_readahead(). The intent was probably to read a single page. Fix it to use the number of pages to the end of the window instead. Fixes: 99cb0dbd ("mm,thp: add read-only THP support for (non-shmem) FS") Signed-off-by:
David Howells <dhowells@redhat.com> Signed-off-by:
Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by:
Song Liu <songliubraving@fb.com> Acked-by:
Yang Shi <shy828301@gmail.com> Acked-by:
Pankaj Gupta <pankaj.gupta.linux@gmail.com> Cc: Eric Biggers <ebiggers@google.com> Link: https://lkml.kernel.org/r/20200903140844.14194-2-willy@infradead.orgSigned-off-by:
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Muchun Song authored
There is a race between the assignment of `table->data` and write value to the pointer of `table->data` in the __do_proc_doulongvec_minmax() on the other thread. CPU0: CPU1: proc_sys_write hugetlb_sysctl_handler proc_sys_call_handler hugetlb_sysctl_handler_common hugetlb_sysctl_handler table->data = &tmp; hugetlb_sysctl_handler_common table->data = &tmp; proc_doulongvec_minmax do_proc_doulongvec_minmax sysctl_head_finish __do_proc_doulongvec_minmax unuse_table i = table->data; *i = val; // corrupt CPU1's stack Fix this by duplicating the `table`, and only update the duplicate of it. And introduce a helper of proc_hugetlb_doulongvec_minmax() to simplify the code. The following oops was seen: BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor instruction fetch in kernel mode #PF: error_code(0x0010) - not-present page Code: Bad RIP value. ... Call Trace: ? set_max_huge_pages+0x3da/0x4f0 ? alloc_pool_huge_page+0x150/0x150 ? proc_doulongvec_minmax+0x46/0x60 ? hugetlb_sysctl_handler_common+0x1c7/0x200 ? nr_hugepages_store+0x20/0x20 ? copy_fd_bitmaps+0x170/0x170 ? hugetlb_sysctl_handler+0x1e/0x20 ? proc_sys_call_handler+0x2f1/0x300 ? unregister_sysctl_table+0xb0/0xb0 ? __fd_install+0x78/0x100 ? proc_sys_write+0x14/0x20 ? __vfs_write+0x4d/0x90 ? vfs_write+0xef/0x240 ? ksys_write+0xc0/0x160 ? __ia32_sys_read+0x50/0x50 ? __close_fd+0x129/0x150 ? __x64_sys_write+0x43/0x50 ? do_syscall_64+0x6c/0x200 ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 Fixes: e5ff2159 ("hugetlb: multiple hstates for multiple page sizes") Signed-off-by:Muchun Song <songmuchun@bytedance.com> Signed-off-by:
Mike Kravetz <mike.kravetz@oracle.com> Cc: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/20200828031146.43035-1-songmuchun@bytedance.comSigned-off-by:
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