1What:		/sys/kernel/mm/cma/
2Date:		Feb 2021
3Contact:	Minchan Kim <minchan@kernel.org>
4Description:
5		/sys/kernel/mm/cma/ contains a subdirectory for each CMA
6		heap name (also sometimes called CMA areas).
7
8		Each CMA heap subdirectory (that is, each
9		/sys/kernel/mm/cma/<cma-heap-name> directory) contains the
10		following items:
11
12			alloc_pages_success
13			alloc_pages_fail
14
15What:		/sys/kernel/mm/cma/<cma-heap-name>/alloc_pages_success
16Date:		Feb 2021
17Contact:	Minchan Kim <minchan@kernel.org>
18Description:
19		the number of pages CMA API succeeded to allocate
20
21What:		/sys/kernel/mm/cma/<cma-heap-name>/alloc_pages_fail
22Date:		Feb 2021
23Contact:	Minchan Kim <minchan@kernel.org>
24Description:
25		the number of pages CMA API failed to allocate
26