mm: vmstat: add cma statistics
Since CMA is used more widely, it's worth to have CMA allocation
statistics into vmstat. With it, we could know how agressively system
uses cma allocation and how often it fails.
Link: https://lkml.kernel.org/r/20210302183346.3707237-1-minchan@kernel.org
Signed-off-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Cc: John Dias <joaodias@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 74b2c37..49a8456e 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1313,6 +1313,10 @@ const char * const vmstat_text[] = {
"htlb_buddy_alloc_success",
"htlb_buddy_alloc_fail",
#endif
+#ifdef CONFIG_CMA
+ "cma_alloc_success",
+ "cma_alloc_fail",
+#endif
"unevictable_pgs_culled",
"unevictable_pgs_scanned",
"unevictable_pgs_rescued",
