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mm/damon/core: expose damos_filter_for_ops() to DAMON kernel API callers

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damos_filter_for_ops() can be useful to avoid putting wrong type of
filters in wrong place.  Make it be exposed to DAMON kernel API callers.

Link: https://lkml.kernel.org/r/20250305222733.59089-5-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park 2025-03-05 14:27:29 -08:00 committed by Andrew Morton
parent 968cbea1bb
commit f7f0d88b7d
2 changed files with 9 additions and 1 deletions
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1
include/linux/damon.h
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@ -894,6 +894,7 @@ void damon_update_region_access_rate(struct damon_region *r, bool accessed,
struct damos_filter *damos_new_filter(enum damos_filter_type type,
bool matching, bool allow);
void damos_add_filter(struct damos *s, struct damos_filter *f);
bool damos_filter_for_ops(enum damos_filter_type type);
void damos_destroy_filter(struct damos_filter *f);
struct damos_quota_goal *damos_new_quota_goal(

9
mm/damon/core.c
View File

@ -281,7 +281,14 @@ struct damos_filter *damos_new_filter(enum damos_filter_type type,
return filter;
}
static bool damos_filter_for_ops(enum damos_filter_type type)
/**
* damos_filter_for_ops() - Return if the filter is ops-hndled one.
* @type: type of the filter.
*
* Return: true if the filter of @type needs to be handled by ops layer, false
* otherwise.
*/
bool damos_filter_for_ops(enum damos_filter_type type)
{
switch (type) {
case DAMOS_FILTER_TYPE_ADDR: