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* Merge tag 'docs-5.3' of git://git.lwn.net/linuxLinus Torvalds2019-07-092-27/+27
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull Documentation updates from Jonathan Corbet: "It's been a relatively busy cycle for docs: - A fair pile of RST conversions, many from Mauro. These create more than the usual number of simple but annoying merge conflicts with other trees, unfortunately. He has a lot more of these waiting on the wings that, I think, will go to you directly later on. - A new document on how to use merges and rebases in kernel repos, and one on Spectre vulnerabilities. - Various improvements to the build system, including automatic markup of function() references because some people, for reasons I will never understand, were of the opinion that :c:func:``function()`` is unattractive and not fun to type. - We now recommend using sphinx 1.7, but still support back to 1.4. - Lots of smaller improvements, warning fixes, typo fixes, etc" * tag 'docs-5.3' of git://git.lwn.net/linux: (129 commits) docs: automarkup.py: ignore exceptions when seeking for xrefs docs: Move binderfs to admin-guide Disable Sphinx SmartyPants in HTML output doc: RCU callback locks need only _bh, not necessarily _irq docs: format kernel-parameters -- as code Doc : doc-guide : Fix a typo platform: x86: get rid of a non-existent document Add the RCU docs to the core-api manual Documentation: RCU: Add TOC tree hooks Documentation: RCU: Rename txt files to rst Documentation: RCU: Convert RCU UP systems to reST Documentation: RCU: Convert RCU linked list to reST Documentation: RCU: Convert RCU basic concepts to reST docs: filesystems: Remove uneeded .rst extension on toctables scripts/sphinx-pre-install: fix out-of-tree build docs: zh_CN: submitting-drivers.rst: Remove a duplicated Documentation/ Documentation: PGP: update for newer HW devices Documentation: Add section about CPU vulnerabilities for Spectre Documentation: platform: Delete x86-laptop-drivers.txt docs: Note that :c:func: should no longer be used ...
| * docs/vm: hwpoison.rst: Fix quote formattingValentin Schneider2019-06-201-26/+26
| | | | | | | | | | | | | | | | | | | | | | The asterisks prepended to the quoted text currently get translated to bullet points, which gets increasingly confusing the smaller your screen is (when viewing the sphinx output, that is). Convert the whole quote to a literal block. Signed-off-by: Valentin Schneider <valentin.schneider@arm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| * docs: scheduler: convert docs to ReST and rename to *.rstMauro Carvalho Chehab2019-06-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to prepare to add them to the Kernel API book, convert the files to ReST format. The conversion is actually: - add blank lines and identation in order to identify paragraphs; - fix tables markups; - add some lists markups; - mark literal blocks; - adjust title markups. At its new index.rst, let's add a :orphan: while this is not linked to the main index.rst file, in order to avoid build warnings. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* | Merge branch 'for-5.3' of ↵Linus Torvalds2019-07-083-4/+4
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup updates from Tejun Heo: "Documentation updates and the addition of cgroup_parse_float() which will be used by new controllers including blk-iocost" * 'for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: docs: cgroup-v1: convert docs to ReST and rename to *.rst cgroup: Move cgroup_parse_float() implementation out of CONFIG_SYSFS cgroup: add cgroup_parse_float()
| * docs: cgroup-v1: convert docs to ReST and rename to *.rstMauro Carvalho Chehab2019-06-143-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the cgroup-v1 files to ReST format, in order to allow a later addition to the admin-guide. The conversion is actually: - add blank lines and identation in order to identify paragraphs; - fix tables markups; - add some lists markups; - mark literal blocks; - adjust title markups. At its new index.rst, let's add a :orphan: while this is not linked to the main index.rst file, in order to avoid build warnings. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Tejun Heo <tj@kernel.org>
* | mm: fix Documentation/vm/hmm.rst Sphinx warningsRandy Dunlap2019-06-011-3/+5
|/ | | | | | | | | | | | | | | | Fix Sphinx warnings in Documentation/vm/hmm.rst by using "::" notation and inserting a blank line. Also add a missing ';'. Documentation/vm/hmm.rst:292: WARNING: Unexpected indentation. Documentation/vm/hmm.rst:300: WARNING: Unexpected indentation. Link: http://lkml.kernel.org/r/c5995359-7c82-4e47-c7be-b58a4dda0953@infradead.org Fixes: 023a019a9b4e ("mm/hmm: add default fault flags to avoid the need to pre-fill pfns arrays") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Jérôme Glisse <jglisse@redhat.com> Reviewed-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mm/hmm: add default fault flags to avoid the need to pre-fill pfns arraysJérôme Glisse2019-05-141-0/+35
| | | | | | | | | | | | | | | | | | | | | | | | | The HMM mirror API can be use in two fashions. The first one where the HMM user coalesce multiple page faults into one request and set flags per pfns for of those faults. The second one where the HMM user want to pre-fault a range with specific flags. For the latter one it is a waste to have the user pre-fill the pfn arrays with a default flags value. This patch adds a default flags value allowing user to set them for a range without having to pre-fill the pfn array. Link: http://lkml.kernel.org/r/20190403193318.16478-8-jglisse@redhat.com Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Reviewed-by: Ralph Campbell <rcampbell@nvidia.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Balbir Singh <bsingharora@gmail.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Souptick Joarder <jrdr.linux@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mm/hmm: improve driver API to work and wait over a rangeJérôme Glisse2019-05-141-4/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | A common use case for HMM mirror is user trying to mirror a range and before they could program the hardware it get invalidated by some core mm event. Instead of having user re-try right away to mirror the range provide a completion mechanism for them to wait for any active invalidation affecting the range. This also changes how hmm_range_snapshot() and hmm_range_fault() works by not relying on vma so that we can drop the mmap_sem when waiting and lookup the vma again on retry. Link: http://lkml.kernel.org/r/20190403193318.16478-7-jglisse@redhat.com Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Reviewed-by: Ralph Campbell <rcampbell@nvidia.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Balbir Singh <bsingharora@gmail.com> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Souptick Joarder <jrdr.linux@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mm/hmm: improve and rename hmm_vma_fault() to hmm_range_fault()Jérôme Glisse2019-05-141-7/+1
| | | | | | | | | | | | | | | | | | | | | Minor optimization around hmm_pte_need_fault(). Rename for consistency between code, comments and documentation. Also improves the comments on all the possible returns values. Improve the function by returning the number of populated entries in pfns array. Link: http://lkml.kernel.org/r/20190403193318.16478-6-jglisse@redhat.com Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Reviewed-by: Ralph Campbell <rcampbell@nvidia.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Balbir Singh <bsingharora@gmail.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Souptick Joarder <jrdr.linux@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mm/hmm: improve and rename hmm_vma_get_pfns() to hmm_range_snapshot()Jérôme Glisse2019-05-141-8/+18
| | | | | | | | | | | | | | | | | | | | Rename for consistency between code, comments and documentation. Also improves the comments on all the possible returns values. Improve the function by returning the number of populated entries in pfns array. Link: http://lkml.kernel.org/r/20190403193318.16478-5-jglisse@redhat.com Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Reviewed-by: Ralph Campbell <rcampbell@nvidia.com> Reviewed-by: John Hubbard <jhubbard@nvidia.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Balbir Singh <bsingharora@gmail.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Souptick Joarder <jrdr.linux@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* docs/vm: Minor editorial changes in the THP and hugetlbfsRalph Campbell2019-04-302-44/+46
| | | | | | | | | | Some minor wording changes and typo corrections. Signed-off-by: Ralph Campbell <rcampbell@nvidia.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Mike Kravetz <mike.kravetz@oracle.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs/vm: add documentation of memory modelsMike Rapoport2019-04-302-0/+184
| | | | | | | | | Describe what {FLAT,DISCONTIG,SPARSE}MEM are and how they manage to maintain pfn <-> struct page correspondence. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* doc: mm: migration doesn't use FOLL_SPLIT anymoreYang Shi2019-04-191-7/+1
| | | | | | | | | | | | | | | | When demonstrating FOLL_SPLIT in transhuge document, migration is used as an example. But, since commit 94723aafb9e7 ("mm: unclutter THP migration"), the way of THP migration is totally changed. FOLL_SPLIT is not used by migration anymore due to the change. Remove the obsolete example to avoid confusion. Cc: Michal Hocko <mhocko@suse.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Yang Shi <yang.shi@linux.alibaba.com> Reviewed-by: Zi Yan <ziy@nvidia.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs: Use reference to link to rst fileTobin C. Harding2019-04-091-2/+2
| | | | | | | | | | | Current document includes the path to an RST doc file. Since this is an RST file we can make this a link. Keeps the path as the link title since that what the original author wrote. Use reference to link to rst file. Signed-off-by: Tobin C. Harding <tobin@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs: Use underscore not hyphen in labelTobin C. Harding2019-02-011-1/+1
| | | | | | | | | | | | | | | sphinx emits warning WARNING: undefined label: memory-allocation ... This seems to be caused by the use of a hyphen in the label name instead of an underscore. Using an underscore for the label name and the reference clears the warning. Use underscore not hyphen in label and reference. Signed-off-by: Tobin C. Harding <tobin@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs: Add missing colonTobin C. Harding2019-02-011-1/+1
| | | | | | | | | | | | | | sphinx emits warning WARNING: Inline emphasis start-string without end-string. This is caused by a missing colon. Add missing colon, clearing shpinx build warning. Signed-off-by: Tobin C. Harding <tobin@kernel.org> Acked-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs: Fix SLUB docs typoTobin C. Harding2019-02-011-1/+1
| | | | | | | | | | There is a minor typo in SLUB documentation. Fix typo. Signed-off-by: Tobin C. Harding <tobin@kernel.org> Acked-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Merge tag 'docs-5.0' of git://git.lwn.net/linuxLinus Torvalds2018-12-291-1/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull documentation update from Jonathan Corbet: "A fairly normal cycle for documentation stuff. We have a new document on perf security, more Italian translations, more improvements to the memory-management docs, improvements to the pathname lookup documentation, and the usual array of smaller fixes. As is often the case, there are a few reaches outside of Documentation/ to adjust kerneldoc comments" * tag 'docs-5.0' of git://git.lwn.net/linux: (38 commits) docs: improve pathname-lookup document structure configfs: fix wrong name of struct in documentation docs/mm-api: link slab_common.c to "The Slab Cache" section slab: make kmem_cache_create{_usercopy} description proper kernel-doc doc:process: add links where missing docs/core-api: make mm-api.rst more structured x86, boot: documentation whitespace fixup Documentation: devres: note checking needs when converting doc:it: add some process/* translations doc:it: fixes in process/1.Intro Documentation: convert path-lookup from markdown to resturctured text Documentation/admin-guide: update admin-guide index.rst Documentation/admin-guide: introduce perf-security.rst file scripts/kernel-doc: Fix struct and struct field attribute processing Documentation: dev-tools: Fix typos in index.rst Correct gen_init_cpio tool's documentation Document /proc/pid PID reuse behavior Documentation: update path-lookup.md for parallel lookups Documentation: Use "while" instead of "whilst" dmaengine: Add mailing list address to the documentation ...
| * Link the memory allocation guide from the MM docsMatthew Wilcox2018-11-201-1/+3
| | | | | | | | | | | | | | | | | | | | I just went looking for the memory allocation guide in the MM docs instead of in the core API. For the benefit of the next person who makes that mistake, link to it from the MM docs. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* | Merge drm/drm-next into drm-intel-next-queuedJani Nikula2018-11-203-60/+16
|\| | | | | | | | | | | Pull in v4.20-rc3 via drm-next. Signed-off-by: Jani Nikula <jani.nikula@intel.com>
| * slub: extend slub debug to handle multiple slabsAaron Tomlin2018-10-261-3/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Extend the slub_debug syntax to "slub_debug=<flags>[,<slub>]*", where <slub> may contain an asterisk at the end. For example, the following would poison all kmalloc slabs: slub_debug=P,kmalloc* and the following would apply the default flags to all kmalloc and all block IO slabs: slub_debug=,bio*,kmalloc* Please note that a similar patch was posted by Iliyan Malchev some time ago but was never merged: https://marc.info/?l=linux-mm&m=131283905330474&w=2 Link: http://lkml.kernel.org/r/20180928111139.27962-1-atomlin@redhat.com Signed-off-by: Aaron Tomlin <atomlin@redhat.com> Acked-by: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Iliyan Malchev <malchev@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * Drop all 00-INDEX files from Documentation/Henrik Austad2018-09-091-50/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a respin with a wider audience (all that get_maintainer returned) and I know this spams a *lot* of people. Not sure what would be the correct way, so my apologies for ruining your inbox. The 00-INDEX files are supposed to give a summary of all files present in a directory, but these files are horribly out of date and their usefulness is brought into question. Often a simple "ls" would reveal the same information as the filenames are generally quite descriptive as a short introduction to what the file covers (it should not surprise anyone what Documentation/sched/sched-design-CFS.txt covers) A few years back it was mentioned that these files were no longer really needed, and they have since then grown further out of date, so perhaps it is time to just throw them out. A short status yields the following _outdated_ 00-INDEX files, first counter is files listed in 00-INDEX but missing in the directory, last is files present but not listed in 00-INDEX. List of outdated 00-INDEX: Documentation: (4/10) Documentation/sysctl: (0/1) Documentation/timers: (1/0) Documentation/blockdev: (3/1) Documentation/w1/slaves: (0/1) Documentation/locking: (0/1) Documentation/devicetree: (0/5) Documentation/power: (1/1) Documentation/powerpc: (0/5) Documentation/arm: (1/0) Documentation/x86: (0/9) Documentation/x86/x86_64: (1/1) Documentation/scsi: (4/4) Documentation/filesystems: (2/9) Documentation/filesystems/nfs: (0/2) Documentation/cgroup-v1: (0/2) Documentation/kbuild: (0/4) Documentation/spi: (1/0) Documentation/virtual/kvm: (1/0) Documentation/scheduler: (0/2) Documentation/fb: (0/1) Documentation/block: (0/1) Documentation/networking: (6/37) Documentation/vm: (1/3) Then there are 364 subdirectories in Documentation/ with several files that are missing 00-INDEX alltogether (and another 120 with a single file and no 00-INDEX). I don't really have an opinion to whether or not we /should/ have 00-INDEX, but the above 00-INDEX should either be removed or be kept up to date. If we should keep the files, I can try to keep them updated, but I rather not if we just want to delete them anyway. As a starting point, remove all index-files and references to 00-INDEX and see where the discussion is going. Signed-off-by: Henrik Austad <henrik@austad.us> Acked-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Just-do-it-by: Steven Rostedt <rostedt@goodmis.org> Reviewed-by: Jens Axboe <axboe@kernel.dk> Acked-by: Paul Moore <paul@paul-moore.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: [Almost everybody else] Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| * docs/vm/hmm.rst: Add missed spaceBaoquan He2018-08-311-7/+7
| | | | | | | | | | | | | | | | | | This space missing caused the colour scheme in vim editor messy after that line. Add it to fix. Signed-off-by: Baoquan He <bhe@redhat.com> [ jc: fixed alignment after the changed line ] Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* | mm, drm/i915: mark pinned shmemfs pages as unevictableKuo-Hsin Yang2018-11-071-1/+5
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The i915 driver uses shmemfs to allocate backing storage for gem objects. These shmemfs pages can be pinned (increased ref count) by shmem_read_mapping_page_gfp(). When a lot of pages are pinned, vmscan wastes a lot of time scanning these pinned pages. In some extreme case, all pages in the inactive anon lru are pinned, and only the inactive anon lru is scanned due to inactive_ratio, the system cannot swap and invokes the oom-killer. Mark these pinned pages as unevictable to speed up vmscan. Export pagevec API check_move_unevictable_pages(). This patch was inspired by Chris Wilson's change [1]. [1]: https://patchwork.kernel.org/patch/9768741/ Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Dave Hansen <dave.hansen@intel.com> Signed-off-by: Kuo-Hsin Yang <vovoy@chromium.org> Acked-by: Michal Hocko <mhocko@suse.com> # mm part Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Dave Hansen <dave.hansen@intel.com> Acked-by: Andrew Morton <akpm@linux-foundation.org> Link: https://patchwork.freedesktop.org/patch/msgid/20181106132324.17390-1-chris@chris-wilson.co.uk Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
* docs/vm: move ksm and transhuge from "user" to "internals" section.Mike Rapoport2018-05-291-2/+2
| | | | | | | | | After the userspace interface description for KSM and THP was split to Documentation/admin-guide/mm, the remaining parts belong to the section describing MM internals. Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs/vm: transhuge: split userspace bits to admin-guide/mm/transhugeMike Rapoport2018-05-211-412/+2
| | | | | | | | Now that the administrative information for transparent huge pages is nicely separated, move it to its own page under the admin guide. Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs/vm: transhuge: minor updatesMike Rapoport2018-05-211-11/+36
| | | | | | | Some formatting changes and addition of a sentence introducing khugepaged Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs/vm: transhuge: change sections orderMike Rapoport2018-05-211-41/+41
| | | | | | | | so that userspace interface and implementation description will be grouped together Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* mm, THP, doc: Add document for thp_swpout/thp_swpout_fallbackHuang Ying2018-05-101-0/+9
| | | | | | | | | | | Add document for newly added thp_swpout, thp_swpout_fallback fields in /proc/vmstat. Signed-off-by: "Huang, Ying" <ying.huang@intel.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs/vm: move numa_memory_policy.rst to Documentation/admin-guide/mmMike Rapoport2018-05-084-499/+1
| | | | | | | | The document describes userspace API and as such it belongs to Documentation/admin-guide/mm Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs/vm: numa_memory_policy: s/Linux memory policy/NUMA memory policy/Mike Rapoport2018-05-081-7/+7
| | | | | | | | | | The document describes NUMA memory policy and as it is a part of the Linux documentation it's obvious that this is Linux memory policy. Besides, "Linux memory policy" may refer to other policies, e.g. memory hotplug policy, and using term NUMA makes the documentation less ambiguous. Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs/vm: numa_memory_policy: formatting and spelling updatesMike Rapoport2018-05-081-7/+17
| | | | | Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs/vm: ksm: split userspace interface to admin-guide/mm/ksm.rstMike Rapoport2018-04-271-175/+1
| | | | | Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs/vm: ksm: udpate description of stable_node_{dups,chains}Mike Rapoport2018-04-271-11/+10
| | | | | | | | | Remove implementation details from sysfs parameter descriptions. Also move the paragraph discussing fragmentation issues and their possible solution to the "Design" section. Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs/vm: ksm: update stable_node_chains_prune_millisecs descriptionMike Rapoport2018-04-271-8/+11
| | | | | | | | | Make the description of stable_node_chains_prune_millisecs sysfs parameter less implementation aware and add a few words about this parameter in the "Design" section. Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs/vm: ksm: reshuffle text between "sysfs" and "design" sectionsMike Rapoport2018-04-271-21/+30
| | | | | | | | | The description of "max_page_sharing" sysfs attribute includes lots of implementation details that more naturally belong in the "Design" section. Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs/vm: ksm: add "Design" sectionMike Rapoport2018-04-271-0/+39
| | | | | | | | | Include the KSM description from the source code comment, add a subsection about reverse mapping and include kernel-doc references for KSM data structures. Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs/vm: ksm: (mostly) formatting updatesMike Rapoport2018-04-271-41/+69
| | | | | | | | | | Aside from the formatting: * fixed typos * added section and sub-section headers * moved ksmd overview after the description of KSM origins Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs/admin-guide/mm: start moving here files from Documentation/vmMike Rapoport2018-04-278-997/+1
| | | | | | | | | | Several documents in Documentation/vm fit quite well into the "admin/user guide" category. The documents that don't overload the reader with lots of implementation details and provide coherent description of certain feature can be moved to Documentation/admin-guide/mm. Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs/vm: pagemap: change document titleMike Rapoport2018-04-271-3/+3
| | | | | | | | | "pagemap from the Userspace Perspective" is not very descriptive for unaware readers. Since the document describes how to examine a process page tables, let's title it "Examining Process Page Tables" Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs/vm: pagemap: formatting and spelling updatesMike Rapoport2018-04-271-8/+8
| | | | | Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs/vm: hugetlbpage: move section about kernel development to hugetlbfs_reservMike Rapoport2018-04-272-8/+8
| | | | | | | | | The hugetlbpage describes hugetlbfs from the user perspective and newer hugetlbfs_reserv document targets kernel developers. Hence the section about hugetlbfs kernel development naturally belongs there. Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs/vm: hugetlbpage: minor improvementsMike Rapoport2018-04-271-7/+10
| | | | | | | | * fixed mistypes * added internal cross-references for sections Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Merge branch 'mm-rst' into docs-nextJonathan Corbet2018-04-1639-2159/+2557
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mike Rapoport says: These patches convert files in Documentation/vm to ReST format, add an initial index and link it to the top level documentation. There are no contents changes in the documentation, except few spelling fixes. The relatively large diffstat stems from the indentation and paragraph wrapping changes. I've tried to keep the formatting as consistent as possible, but I could miss some places that needed markup and add some markup where it was not necessary. [jc: significant conflicts in vm/hmm.rst]
| * docs/vm: add index.rst and link MM documentation to top level indexMike Rapoport2018-04-162-0/+66
| | | | | | | | | | Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| * docs/vm: rename documentation files to .rstMike Rapoport2018-04-1631-36/+36
| | | | | | | | | | Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| * docs/vm: zswap.txt: convert to ReST formatMike Rapoport2018-04-161-29/+42
| | | | | | | | | | Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| * docs/vm: zsmalloc.txt: convert to ReST formatMike Rapoport2018-04-161-24/+36
| | | | | | | | | | Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| * docs/vm: z3fold.txt: convert to ReST formatMike Rapoport2018-04-161-1/+5
| | | | | | | | | | Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| * docs/vm: userfaultfd.txt: convert to ReST formatMike Rapoport2018-04-161-27/+39
| | | | | | | | | | Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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