Messages in this thread Patch in this message | | | From | Mike Rapoport <> | Subject | [PATCH v3 7/7] docs/core-api: mm-api: add section about GFP flags | Date | Thu, 26 Jul 2018 20:32:40 +0300 |
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Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> --- Documentation/core-api/mm-api.rst | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+)
diff --git a/Documentation/core-api/mm-api.rst b/Documentation/core-api/mm-api.rst index b5913aa..46ae353 100644 --- a/Documentation/core-api/mm-api.rst +++ b/Documentation/core-api/mm-api.rst @@ -14,6 +14,27 @@ User Space Memory Access .. kernel-doc:: mm/util.c :functions: get_user_pages_fast +Memory Allocation Controls +========================== + +Functions which need to allocate memory often use GFP flags to express +how that memory should be allocated. The GFP acronym stands for "get +free pages", the underlying memory allocation function. Not every GFP +flag is allowed to every function which may allocate memory. Most +users will want to use a plain ``GFP_KERNEL``. + +.. kernel-doc:: include/linux/gfp.h + :doc: Page mobility and placement hints + +.. kernel-doc:: include/linux/gfp.h + :doc: Watermark modifiers + +.. kernel-doc:: include/linux/gfp.h + :doc: Reclaim modifiers + +.. kernel-doc:: include/linux/gfp.h + :doc: Common combinations + The Slab Cache ============== -- 2.7.4
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