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Subject[PATCH v3 7/7] docs/core-api: mm-api: add section about GFP flags
Date
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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