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Add an admin guide. Link: https://lkml.kernel.org/r/20220918080010.2920238-14-yuzhao@google.com Change-Id: Ia4dba47e8231eda4f0e76fb8969df7291a9bfe7c Signed-off-by: Yu Zhao <yuzhao@google.com> Acked-by: Brian Geffon <bgeffon@google.com> Acked-by: Jan Alexander Steffens (heftig) <heftig@archlinux.org> Acked-by: Oleksandr Natalenko <oleksandr@natalenko.name> Acked-by: Steven Barrett <steven@liquorix.net> Acked-by: Suleiman Souhlal <suleiman@google.com> Acked-by: Mike Rapoport <rppt@linux.ibm.com> Tested-by: Daniel Byrne <djbyrne@mtu.edu> Tested-by: Donald Carr <d@chaos-reins.com> Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com> Tested-by: Konstantin Kharlamov <Hi-Angel@yandex.ru> Tested-by: Shuang Zhai <szhai2@cs.rochester.edu> Tested-by: Sofia Trinh <sofia.trinh@edi.works> Tested-by: Vaibhav Jain <vaibhav@linux.ibm.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Barry Song <baohua@kernel.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Hillf Danton <hdanton@sina.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Mel Gorman <mgorman@suse.de> Cc: Miaohe Lin <linmiaohe@huawei.com> Cc: Michael Larabel <Michael@MichaelLarabel.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Mike Rapoport <rppt@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Qi Zheng <zhengqi.arch@bytedance.com> Cc: Tejun Heo <tj@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> (cherry picked from commit 07017acb06012d250fb68930e809257e6694d324) Bug: 249601646 Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
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=================
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Memory Management
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=================
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Linux memory management subsystem is responsible, as the name implies,
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for managing the memory in the system. This includes implementation of
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virtual memory and demand paging, memory allocation both for kernel
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internal structures and user space programs, mapping of files into
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processes address space and many other cool things.
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Linux memory management is a complex system with many configurable
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settings. Most of these settings are available via ``/proc``
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filesystem and can be quired and adjusted using ``sysctl``. These APIs
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are described in Documentation/admin-guide/sysctl/vm.rst and in `man 5 proc`_.
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.. _man 5 proc: http://man7.org/linux/man-pages/man5/proc.5.html
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Linux memory management has its own jargon and if you are not yet
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familiar with it, consider reading
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:ref:`Documentation/admin-guide/mm/concepts.rst <mm_concepts>`.
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Here we document in detail how to interact with various mechanisms in
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the Linux memory management.
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.. toctree::
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:maxdepth: 1
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concepts
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cma_debugfs
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damon/index
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hugetlbpage
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idle_page_tracking
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ksm
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memory-hotplug
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multigen_lru
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nommu-mmap
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numa_memory_policy
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numaperf
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pagemap
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soft-dirty
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transhuge
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userfaultfd
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