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-rw-r--r--include/linux/damon.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/damon.h b/include/linux/damon.h
index b4d37d9b9221..5e7ae7bca5dc 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -36,6 +36,16 @@ struct damon_addr_range {
};
/**
+ * struct damon_size_range - Represents size for filter to operate on [@min, @max].
+ * @min: Min size (inclusive).
+ * @max: Max size (inclusive).
+ */
+struct damon_size_range {
+ unsigned long min;
+ unsigned long max;
+};
+
+/**
* struct damon_region - Represents a monitoring target region.
* @ar: The address range of the region.
* @sampling_addr: Address of the sample for the next access check.
@@ -326,6 +336,7 @@ struct damos_stat {
* @DAMOS_FILTER_TYPE_ANON: Anonymous pages.
* @DAMOS_FILTER_TYPE_MEMCG: Specific memcg's pages.
* @DAMOS_FILTER_TYPE_YOUNG: Recently accessed pages.
+ * @DAMOS_FILTER_TYPE_HUGEPAGE_SIZE: Page is part of a hugepage.
* @DAMOS_FILTER_TYPE_ADDR: Address range.
* @DAMOS_FILTER_TYPE_TARGET: Data Access Monitoring target.
* @NR_DAMOS_FILTER_TYPES: Number of filter types.
@@ -345,6 +356,7 @@ enum damos_filter_type {
DAMOS_FILTER_TYPE_ANON,
DAMOS_FILTER_TYPE_MEMCG,
DAMOS_FILTER_TYPE_YOUNG,
+ DAMOS_FILTER_TYPE_HUGEPAGE_SIZE,
DAMOS_FILTER_TYPE_ADDR,
DAMOS_FILTER_TYPE_TARGET,
NR_DAMOS_FILTER_TYPES,
@@ -360,6 +372,7 @@ enum damos_filter_type {
* @target_idx: Index of the &struct damon_target of
* &damon_ctx->adaptive_targets if @type is
* DAMOS_FILTER_TYPE_TARGET.
+ * @sz_range: Size range if @type is DAMOS_FILTER_TYPE_HUGEPAGE_SIZE.
* @list: List head for siblings.
*
* Before applying the &damos->action to a memory region, DAMOS checks if each
@@ -376,6 +389,7 @@ struct damos_filter {
unsigned short memcg_id;
struct damon_addr_range addr_range;
int target_idx;
+ struct damon_size_range sz_range;
};
struct list_head list;
};