[PATCH 02/12] mm/damon/core: Add number of each enum type values
From: SeongJae Park <sj@kernel.org>
Date: 2022-02-23 15:21:31
Also in:
linux-kselftest, linux-mm, lkml
Subsystem:
damon, the rest · Maintainers:
SeongJae Park, Linus Torvalds
This commit declares the number of legal values for each DAMON enum types to make traversals of such DAMON enum types easy and safe. Signed-off-by: SeongJae Park <sj@kernel.org> --- include/linux/damon.h | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/include/linux/damon.h b/include/linux/damon.h
index f8e99e47d747..f23cbfa4248d 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h@@ -87,6 +87,7 @@ struct damon_target { * @DAMOS_HUGEPAGE: Call ``madvise()`` for the region with MADV_HUGEPAGE. * @DAMOS_NOHUGEPAGE: Call ``madvise()`` for the region with MADV_NOHUGEPAGE. * @DAMOS_STAT: Do nothing but count the stat. + * @NR_DAMOS_ACTIONS: Total number of DAMOS actions */ enum damos_action { DAMOS_WILLNEED,
@@ -95,6 +96,7 @@ enum damos_action { DAMOS_HUGEPAGE, DAMOS_NOHUGEPAGE, DAMOS_STAT, /* Do nothing but only record the stat */ + NR_DAMOS_ACTIONS, }; /**
@@ -157,10 +159,12 @@ struct damos_quota { * * @DAMOS_WMARK_NONE: Ignore the watermarks of the given scheme. * @DAMOS_WMARK_FREE_MEM_RATE: Free memory rate of the system in [0,1000]. + * @NR_DAMOS_WMARK_METRICS: Total number of DAMOS watermark metrics */ enum damos_wmark_metric { DAMOS_WMARK_NONE, DAMOS_WMARK_FREE_MEM_RATE, + NR_DAMOS_WMARK_METRICS, }; /**
--
2.17.1