0001 What: /sys/kernel/mm/cma/
0002 Date: Feb 2021
0003 Contact: Minchan Kim <minchan@kernel.org>
0004 Description:
0005 /sys/kernel/mm/cma/ contains a subdirectory for each CMA
0006 heap name (also sometimes called CMA areas).
0007
0008 Each CMA heap subdirectory (that is, each
0009 /sys/kernel/mm/cma/<cma-heap-name> directory) contains the
0010 following items:
0011
0012 alloc_pages_success
0013 alloc_pages_fail
0014
0015 What: /sys/kernel/mm/cma/<cma-heap-name>/alloc_pages_success
0016 Date: Feb 2021
0017 Contact: Minchan Kim <minchan@kernel.org>
0018 Description:
0019 the number of pages CMA API succeeded to allocate
0020
0021 What: /sys/kernel/mm/cma/<cma-heap-name>/alloc_pages_fail
0022 Date: Feb 2021
0023 Contact: Minchan Kim <minchan@kernel.org>
0024 Description:
0025 the number of pages CMA API failed to allocate
