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2021-08-12docs/zh_CN: add infiniband ipoib translationYanteng Si
Translate Documentation/infiniband/ipoib.rst into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Reviewed-by: Puyu Wang <realpuyuwang@gmail.com> Link: https://lore.kernel.org/r/2d71cfe6b11568d9d9c665e829eaf680c249c94a.1628218477.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-08-12docs/zh_CN: add infiniband core_locking translationYanteng Si
Translate Documentation/infiniband/core_locking.rst into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Reviewed-by: Puyu Wang <realpuyuwang@gmail.com> Link: https://lore.kernel.org/r/d035d79b2936be762bc001b3a53831f34f72cbb7.1628218477.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-08-12docs/zh_CN: add infiniband index translationYanteng Si
Translate Documentation/infiniband/index.rst into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Reviewed-by: Puyu Wang <realpuyuwang@gmail.com> Link: https://lore.kernel.org/r/e3bca9e59f410fe62489e36c5b9a3fab78bc1421.1628218477.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-08-12docs/zh_CN: add virt acrn cpuid translationYanteng Si
Translate Documentation/virt/acrn/cpuid.rst into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Link: https://lore.kernel.org/r/35730828bc65d3912ba27382d5d70ddacee7d8a5.1628212777.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-08-12docs/zh_CN: add virt acrn io-request translationYanteng Si
Translate Documentation/virt/acrn/io-request.rst into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Link: https://lore.kernel.org/r/291079265a8b0555de4d624d7d11fc5ac37a9422.1628212777.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-08-12docs/zh_CN: add virt acrn introduction translationYanteng Si
Translate Documentation/virt/acrn/introduction.rst into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Link: https://lore.kernel.org/r/667a6eb64820d2234d12a0c5dd5b642af16c0d99.1628212777.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-08-12docs/zh_CN: add virt acrn index translationYanteng Si
Translate Documentation/virt/acrn/index.rst into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Link: https://lore.kernel.org/r/17a0dac5ecc5bdcc98160bdb028c6876ca38a6bc.1628212777.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-08-12docs/zh_CN: add virt ne_overview translationYanteng Si
Translate Documentation/virt/ne_overview.rst into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Link: https://lore.kernel.org/r/a6e1a2275a397d77957be30d1acdfeda9dc836f4.1628212777.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-08-12docs/zh_CN: add virt guest-halt-polling translationYanteng Si
Translate Documentation/virt/guest-halt-polling.rst into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Link: https://lore.kernel.org/r/658e255eff55bfdadc1576107bf367a2e80b881a.1628212777.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-08-12docs/zh_CN: add virt paravirt_ops translationYanteng Si
Translate Documentation/virt/paravirt_ops.rst into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Link: https://lore.kernel.org/r/abba361233e2a58999ef5d31c20f24370d7724f2.1628212777.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-08-12docs/zh_CN: add virt index translationYanteng Si
Add virt to .../zh_CN/index and translate it into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Link: https://lore.kernel.org/r/b28d3a530fe0c3635e7be2462fd14a4ae18f0220.1628212777.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-30MAINTAINERS: add entry for traditional Chinese documentationHu Haowen
Add maintainer information for traditional Chinese documentation. Signed-off-by: Hu Haowen <src.res@email.cn> Reviewed-by: Pan Yunwang <panyunwang849@gmail.com> Link: https://lore.kernel.org/r/20210729155627.41744-3-src.res@email.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-30docs/zh_TW: add translations for zh_TW/processHu Haowen
Create new translations for zh_TW/process and link them to index. Signed-off-by: Hu Haowen <src.res@email.cn> Reviewed-by: Pan Yunwang <panyunwang849@gmail.com> Link: https://lore.kernel.org/r/20210729155627.41744-2-src.res@email.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-30docs: add traditional Chinese translation for kernel DocumentationHu Haowen
Add traditional Chinese translation (zh_TW) for the Linux Kernel documentation with a series of translated files. Signed-off-by: Hu Haowen <src.res@email.cn> Reviewed-by: Pan Yunwang <panyunwang849@gmail.com> Link: https://lore.kernel.org/r/20210729155627.41744-1-src.res@email.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-25docs/zh_CN: add a translation for indexHu Haowen
The original file has added a former intro in commit b51208d41c6a4e7fc2f0 ("docs: Tweak the top-level Sphinx page") and hence update the Chinese version for it. Signed-off-by: Hu Haowen <src.res@email.cn> Link: https://lore.kernel.org/r/20210608075207.77812-1-src.res@email.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-25docs: submitting-patches: clarify the role of LKMLHannu Hartikainen
The documentation previously stated that LKML should be used as *last resort*. However, scripts/get_maintainer.pl always suggests it and in a discussion about changing that[0] it turned out that LKML should in fact receive all patches. Update documentation to make it clear that all patches should be sent to LKML by default, in addition to any subsystem-specific lists. [0]: https://lore.kernel.org/lkml/19a701a8d5837088aa7d8ba594c228c0e040e747.camel@perches.com/ Signed-off-by: Hannu Hartikainen <hannu@hrtk.in> Link: https://lore.kernel.org/r/20210707133634.286840-1-hannu@hrtk.in Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-25admin-guide/cputopology.rst: Remove non-existed cpu-hotplug.txtYang Xu
Since kernel commit ff58fa7f556c ("Documentation: Update CPU hotplug and move it to core-api"), cpu_hotplug.txt has been removed. We should update it in here. Signed-off-by: Yang Xu <xuyang2018.jy@fujitsu.com> Link: https://lore.kernel.org/r/1624412269-13155-1-git-send-email-xuyang2018.jy@fujitsu.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-25admin-guide/hw-vuln: Rephrase a section of core-scheduling.rstFabio M. De Francesco
Rephrase the "For MDS" section in core-scheduling.rst for the purpose of making it clearer what is meant by "kernel memory is still considered untrusted". Suggested-by: Vineeth Pillai <Vineeth.Pillai@microsoft.com> Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com> Reviewed-by: Joel Fernandes (Google) <joelaf@google.com> Link: https://lore.kernel.org/r/20210721190250.26095-1-fmdefrancesco@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-25docs: virt: kvm: api.rst: replace some charactersMauro Carvalho Chehab
The conversion tools used during DocBook/LaTeX/html/Markdown->ReST conversion and some cut-and-pasted text contain some characters that aren't easily reachable on standard keyboards and/or could cause troubles when parsed by the documentation build system. Replace the occurences of the following characters: - U+00a0 (' '): NO-BREAK SPACE as it can cause lines being truncated on PDF output Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/ff70cb42d63f3a1da66af1b21b8d038418ed5189.1626947264.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-25docs: firmware-guide: acpi: dsd: graph.rst: replace some charactersMauro Carvalho Chehab
The conversion tools used during DocBook/LaTeX/html/Markdown->ReST conversion and some cut-and-pasted text contain some characters that aren't easily reachable on standard keyboards and/or could cause troubles when parsed by the documentation build system. Replace the occurences of the following characters: - U+00a0 (' '): NO-BREAK SPACE as it can cause lines being truncated on PDF output Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/a65b04a5cf341cff02d4b514dd4889b4fa4f94b8.1626947264.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-25docs: sound: kernel-api: writing-an-alsa-driver.rst: replace some charactersMauro Carvalho Chehab
The conversion tools used during DocBook/LaTeX/html/Markdown->ReST conversion and some cut-and-pasted text contain some characters that aren't easily reachable on standard keyboards and/or could cause troubles when parsed by the documentation build system. Replace the occurences of the following characters: - U+00a0 (' '): NO-BREAK SPACE as it can cause lines being truncated on PDF output Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/21abe5fa495a05ac1f998ed66184a77e19ac89cc.1626947264.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-25docs: networking: dpaa2: fix chapter title formatIoana Ciornei
Fix the DPAA2 DPIO driver chapter title by adding the necessary overline. Without this, the index page of the DPAA2 documentation doesn't display properly. Fixes: d8e516bac73f ("soc: fsl: dpio: Convert DPIO documentation to .rst") Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Link: https://lore.kernel.org/r/20210722100356.635078-5-ciorneiioana@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-25docs: kvm: properly format code blocks and listsIoana Ciornei
Add a '::' so that a code block is interpreted properly and also add a blank line before the start of a list. Fixes: fdc09ddd4064 ("KVM: stats: Add documentation for binary statistics interface") Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Reviewed-by: Jing Zhang <jingzhangos@google.com> Link: https://lore.kernel.org/r/20210722100356.635078-4-ciorneiioana@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-25docs: kvm: fix build warningsIoana Ciornei
Fix some small build warnings. The title underline was too short in some cases and a code block was not indented. Documentation/virt/kvm/api.rst:7216: WARNING: Title underline too short. Fixes: 6dba94035203 ("KVM: x86: Introduce KVM_GET_SREGS2 / KVM_SET_SREGS2") Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Link: https://lore.kernel.org/r/20210722100356.635078-3-ciorneiioana@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-25docs: printk-formats: fix build warningIoana Ciornei
Add an empty line after the '::' starting the code block so that the following lines are properly interpreted. Without this, the following build warnings are visible. Documentation/core-api/printk-formats.rst:136: WARNING: Unexpected indentation. Documentation/core-api/printk-formats.rst:137: WARNING: Block quote ends without a blank line; unexpected unindent. Fixes: 9294523e3768 ("module: add printk formats to add module build ID to stacktraces") Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Acked-by: Petr Mladek <pmladek@suse.com> Link: https://lore.kernel.org/r/20210722100356.635078-2-ciorneiioana@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-25deprecated.rst: Include details on "no_hash_pointers"Kees Cook
Linus decided a debug toggle for %p was tolerable, so update the %p deprecation documentation. Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20210723200526.3424128-1-keescook@chromium.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-25docs/zh_CN: reformat zh_CN/dev-tools/testing-overviewHu Haowen
Reorganise several long lines in order to satisfy the kernel coding style. Signed-off-by: Hu Haowen <src.res@email.cn> Reviewed-by: Yanteng Si <siyanteng@loongson.cn> Link: https://lore.kernel.org/r/20210724130611.4231-1-src.res@email.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-15docs/zh_CN: add core api protection keys translationYanteng Si
Translate Documentation/core-api/protection-keys.rst into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Wu XiangCheng <bobwxc@email.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Link: https://lore.kernel.org/r/abdcd4f157062a529cfc50754689d2df26070592.1625797729.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-15docs/zh_CN: add core api memory_hotplug translationYanteng Si
Translate Documentation/core-api/memory_hotplug.rst into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Wu XiangCheng <bobwxc@email.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Link: https://lore.kernel.org/r/55a74c9fe5627edff36fa01940eae943f0861f8e.1625797729.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-15docs/zh_CN: add core api cpu_hotplug translationYanteng Si
Translate Documentation/core-api/cpu_hotplug.rst into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Wu XiangCheng <bobwxc@email.cn> Link: https://lore.kernel.org/r/5c2273563e64ccbbaf1e7ff043d2ab467879c421.1625798719.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-15docs/core-api: Modify document layoutYanteng Si
Modify the layout of the document and remove unnecessary symbols. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Wu XiangCheng <bobwxc@email.cn> Link: https://lore.kernel.org/r/f151bbc0d1ff6cf24611a698c76b90181f005f8d.1625798719.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-15docs/zh_CN: Remove the Microsoft rhetoricHu Jialun
Update Chinese translation on par with original English coding-style.rst Related commit b7592e5b82db19b72a34b471f3296ad3f651c8b9 Signed-off-by: Hu Jialun <hujialun@comp.nus.edu.sg> Reviewed-by: Hu Haowen <src.res@email.cn> Link: https://lore.kernel.org/r/20210703164834.460447-1-hujialun@comp.nus.edu.sg Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-15Documentation: sysrq: convert to third personCengiz Can
Two parts of the sysrq documentation have sentences written from a first person's point of view. Documentation is generally written from a third person's view in a formal way. Convert those senteces to be less personal and generic. Signed-off-by: Cengiz Can <cengiz@kernel.wtf> Link: https://lore.kernel.org/r/20210629141508.52229-1-cengiz@kernel.wtf Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-15Documentation: arm: marvell: Add few missing models and documentation filesPali Rohár
Signed-off-by: Pali Rohár <pali@kernel.org> Link: https://lore.kernel.org/r/20210625215437.2156-1-pali@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-15docs/zh_CN: add core api genericirq translationYanteng Si
translate Documentation/core-api/genericirq.rst into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Wu XiangCheng <bobwxc@email.cn> Link: https://lore.kernel.org/r/20210709030143.548940-1-siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-15docs/zh_CN: create new translations for zh_CN/dev-tools/testing-overviewHu Haowen
Create new translations for dev-tools/testing-overview.rst and link it to dev-tools/index.rst with TODOList modifications. Signed-off-by: Hu Haowen <src.res@email.cn> Reviewed-by: Wu XiangCheng <bobwxc@email.cn> Reviewed-by: Yanteng Si <siyanteng@loongson.cn> Signed-off-by: Wu XiangCheng <bobwxc@email.cn> Link: https://lore.kernel.org/r/20210620052841.GA22083@bobwxc.top Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-15docs/zh_CN: add a missing space characterHu Haowen
"LinusTorvalds" is not pretty. Replace it with "Linus Torvalds". Signed-off-by: Hu Haowen <src.res@email.cn> Link: https://lore.kernel.org/r/20210620010444.24813-1-src.res@email.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-15Documentation/features: Add THREAD_INFO_IN_TASK feature matrixIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/YN2nhV5F0hBVNPuX@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-15Documentation/features: Update the ARCH_HAS_TICK_BROADCAST entryIngo Molnar
Risc-V gained support recently. Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/YN2nqOVHgGDt4Iid@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-15LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes"Nishanth Menon
A couple of exotic quote characters came in with this license text; they can confuse software that is not expecting non-ASCII text. Switch to normal quotes here, with no changes to the actual license text. Reported-by: Rahul T R <r-ravikumar@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Thorsten Leemhuis <linux@leemhuis.info> Acked-by: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/r/20210703012931.30604-1-nm@ti.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-12scripts/spdxcheck.py: Strictly read license files in utf-8Nishanth Menon
Commit bc41a7f36469 ("LICENSES: Add the CC-BY-4.0 license") unfortunately introduced LICENSES/dual/CC-BY-4.0 in UTF-8 Unicode text While python will barf at it with: FAIL: 'ascii' codec can't decode byte 0xe2 in position 2109: ordinal not in range(128) Traceback (most recent call last): File "scripts/spdxcheck.py", line 244, in <module> spdx = read_spdxdata(repo) File "scripts/spdxcheck.py", line 47, in read_spdxdata for l in open(el.path).readlines(): File "/usr/lib/python3.6/encodings/ascii.py", line 26, in decode return codecs.ascii_decode(input, self.errors)[0] UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 2109: ordinal not in range(128) While it is indeed debatable if 'Licensor.' used in the license file needs unicode quotes, instead, force spdxcheck to read utf-8. Reported-by: Rahul T R <r-ravikumar@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20210707204840.30891-1-nm@ti.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-07-11Linux 5.14-rc1v5.14-rc1Linus Torvalds
2021-07-11mm/rmap: try_to_migrate() skip zone_device !device_privateHugh Dickins
I know nothing about zone_device pages and !device_private pages; but if try_to_migrate_one() will do nothing for them, then it's better that try_to_migrate() filter them first, than trawl through all their vmas. Signed-off-by: Hugh Dickins <hughd@google.com> Reviewed-by: Shakeel Butt <shakeelb@google.com> Reviewed-by: Alistair Popple <apopple@nvidia.com> Link: https://lore.kernel.org/lkml/1241d356-8ec9-f47b-a5ec-9b2bf66d242@google.com/ Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Yang Shi <shy828301@gmail.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-07-11mm/rmap: fix new bug: premature return from page_mlock_one()Hugh Dickins
In the unlikely race case that page_mlock_one() finds VM_LOCKED has been cleared by the time it got page table lock, page_vma_mapped_walk_done() must be called before returning, either explicitly, or by a final call to page_vma_mapped_walk() - otherwise the page table remains locked. Fixes: cd62734ca60d ("mm/rmap: split try_to_munlock from try_to_unmap") Signed-off-by: Hugh Dickins <hughd@google.com> Reviewed-by: Alistair Popple <apopple@nvidia.com> Reviewed-by: Shakeel Butt <shakeelb@google.com> Reported-by: kernel test robot <oliver.sang@intel.com> Link: https://lore.kernel.org/lkml/20210711151446.GB4070@xsang-OptiPlex-9020/ Link: https://lore.kernel.org/lkml/f71f8523-cba7-3342-40a7-114abc5d1f51@google.com/ Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Yang Shi <shy828301@gmail.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-07-11mm/rmap: fix old bug: munlocking THP missed other mlocksHugh Dickins
The kernel recovers in due course from missing Mlocked pages: but there was no point in calling page_mlock() (formerly known as try_to_munlock()) on a THP, because nothing got done even when it was found to be mapped in another VM_LOCKED vma. It's true that we need to be careful: Mlocked accounting of pte-mapped THPs is too difficult (so consistently avoided); but Mlocked accounting of only-pmd-mapped THPs is supposed to work, even when multiple mappings are mlocked and munlocked or munmapped. Refine the tests. There is already a VM_BUG_ON_PAGE(PageDoubleMap) in page_mlock(), so page_mlock_one() does not even have to worry about that complication. (I said the kernel recovers: but would page reclaim be likely to split THP before rediscovering that it's VM_LOCKED? I've not followed that up) Fixes: 9a73f61bdb8a ("thp, mlock: do not mlock PTE-mapped file huge pages") Signed-off-by: Hugh Dickins <hughd@google.com> Reviewed-by: Shakeel Butt <shakeelb@google.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Link: https://lore.kernel.org/lkml/cfa154c-d595-406-eb7d-eb9df730f944@google.com/ Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Alistair Popple <apopple@nvidia.com> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Yang Shi <shy828301@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-07-11mm/rmap: fix comments left over from recent changesHugh Dickins
Parallel developments in mm/rmap.c have left behind some out-of-date comments: try_to_migrate_one() also accepts TTU_SYNC (already commented in try_to_migrate() itself), and try_to_migrate() returns nothing at all. TTU_SPLIT_FREEZE has just been deleted, so reword the comment about it in mm/huge_memory.c; and TTU_IGNORE_ACCESS was removed in 5.11, so delete the "recently referenced" comment from try_to_unmap_one() (once upon a time the comment was near the removed codeblock, but they drifted apart). Signed-off-by: Hugh Dickins <hughd@google.com> Reviewed-by: Shakeel Butt <shakeelb@google.com> Reviewed-by: Alistair Popple <apopple@nvidia.com> Link: https://lore.kernel.org/lkml/563ce5b2-7a44-5b4d-1dfd-59a0e65932a9@google.com/ Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Yang Shi <shy828301@gmail.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-07-11Merge tag 'irq-urgent-2021-07-11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Ingo Molnar: "Two fixes: - Fix a MIPS IRQ handling RCU bug - Remove a DocBook annotation for a parameter that doesn't exist anymore" * tag 'irq-urgent-2021-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/mips: Fix RCU violation when using irqdomain lookup on interrupt entry genirq/irqdesc: Drop excess kernel-doc entry @lookup
2021-07-11Merge tag 'sched-urgent-2021-07-11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fixes from Ingo Molnar: "Three fixes: - Fix load tracking bug/inconsistency - Fix a sporadic CFS bandwidth constraints enforcement bug - Fix a uclamp utilization tracking bug for newly woken tasks" * tag 'sched-urgent-2021-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/uclamp: Ignore max aggregation if rq is idle sched/fair: Fix CFS bandwidth hrtimer expiry type sched/fair: Sync load_sum with load_avg after dequeue
2021-07-11Merge tag 'perf-urgent-2021-07-11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "A fix and a hardware-enablement addition: - Robustify uncore_snbep's skx_iio_set_mapping()'s error cleanup - Add cstate event support for Intel ICELAKE_X and ICELAKE_D" * tag 'perf-urgent-2021-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel/uncore: Clean up error handling path of iio mapping perf/x86/cstate: Add ICELAKE_X and ICELAKE_D support
2021-07-11Merge tag 'locking-urgent-2021-07-11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking fixes from Ingo Molnar: - Fix a Sparc crash - Fix a number of objtool warnings - Fix /proc/lockdep output on certain configs - Restore a kprobes fail-safe * tag 'locking-urgent-2021-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: locking/atomic: sparc: Fix arch_cmpxchg64_local() kprobe/static_call: Restore missing static_call_text_reserved() static_call: Fix static_call_text_reserved() vs __init jump_label: Fix jump_label_text_reserved() vs __init locking/lockdep: Fix meaningless /proc/lockdep output of lock classes on !CONFIG_PROVE_LOCKING
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