1 What: /sys/kernel/mm/cma/ 1 What: /sys/kernel/mm/cma/
2 Date: Feb 2021 2 Date: Feb 2021
3 Contact: Minchan Kim <minchan@kernel.org 3 Contact: Minchan Kim <minchan@kernel.org>
4 Description: 4 Description:
5 /sys/kernel/mm/cma/ contains a 5 /sys/kernel/mm/cma/ contains a subdirectory for each CMA
6 heap name (also sometimes call 6 heap name (also sometimes called CMA areas).
7 7
8 Each CMA heap subdirectory (th 8 Each CMA heap subdirectory (that is, each
9 /sys/kernel/mm/cma/<cma-heap-n 9 /sys/kernel/mm/cma/<cma-heap-name> directory) contains the
10 following items: 10 following items:
11 11
12 alloc_pages_success 12 alloc_pages_success
13 alloc_pages_fail 13 alloc_pages_fail
14 14
15 What: /sys/kernel/mm/cma/<cma-heap-n 15 What: /sys/kernel/mm/cma/<cma-heap-name>/alloc_pages_success
16 Date: Feb 2021 16 Date: Feb 2021
17 Contact: Minchan Kim <minchan@kernel.org 17 Contact: Minchan Kim <minchan@kernel.org>
18 Description: 18 Description:
19 the number of pages CMA API su 19 the number of pages CMA API succeeded to allocate
20 20
21 What: /sys/kernel/mm/cma/<cma-heap-n 21 What: /sys/kernel/mm/cma/<cma-heap-name>/alloc_pages_fail
22 Date: Feb 2021 22 Date: Feb 2021
23 Contact: Minchan Kim <minchan@kernel.org 23 Contact: Minchan Kim <minchan@kernel.org>
24 Description: 24 Description:
25 the number of pages CMA API fa 25 the number of pages CMA API failed to allocate
26 26
27 What: /sys/kernel/mm/cma/<cma-heap-n 27 What: /sys/kernel/mm/cma/<cma-heap-name>/release_pages_success
28 Date: Feb 2024 28 Date: Feb 2024
29 Contact: Anshuman Khandual <anshuman.kha 29 Contact: Anshuman Khandual <anshuman.khandual@arm.com>
30 Description: 30 Description:
31 the number of pages CMA API su 31 the number of pages CMA API succeeded to release
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