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Subject[PATCH v2 44/79] docs: cma/debugfs.txt: convert docs to ReST and rename to *.rst
The debugfs interface for CMA should be there together with other
mm-related documents.

Convert this small file to ReST and move it to its rightful place.

The conversion is actually quite simple: just add a title for the
document. In order to make it to look better for the audience,
also mark the "echo" command as a literal block.

While this is not part of any book, mark it as :orphan:,
in order to avoid build warnings.

Signed-off-by: Mauro Carvalho Chehab <>
Documentation/cma/{debugfs.txt => debugfs.rst} | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
rename Documentation/cma/{debugfs.txt => debugfs.rst} (91%)

diff --git a/Documentation/cma/debugfs.txt b/Documentation/cma/debugfs.rst
similarity index 91%
rename from Documentation/cma/debugfs.txt
rename to Documentation/cma/debugfs.rst
index 6cef20a8cedc..518fe401b5ee 100644
--- a/Documentation/cma/debugfs.txt
+++ b/Documentation/cma/debugfs.rst
@@ -1,3 +1,9 @@
+CMA Debugfs Interface
The CMA debugfs interface is useful to retrieve basic information out of the
different CMA areas and to test allocation/release in each of the areas.

@@ -12,7 +18,7 @@ The structure of the files created under that directory is as follows:
- [RO] count: Amount of memory in the CMA area.
- [RO] order_per_bit: Order of pages represented by one bit.
- [RO] bitmap: The bitmap of page states in the zone.
- - [WO] alloc: Allocate N pages from that CMA area. For example:
+ - [WO] alloc: Allocate N pages from that CMA area. For example::

echo 5 > <debugfs>/cma/cma-2/alloc

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