1 files changed, 25 insertions, 1 deletions
diff --git a/include/uapi/linux/alloc_tag.h b/include/uapi/linux/alloc_tag.h
index ee6a023cbaf4..13e9b5916bf5 100644
--- a/include/uapi/linux/alloc_tag.h
+++ b/include/uapi/linux/alloc_tag.h
@@ -45,8 +45,32 @@ struct allocinfo_tag_data {
 	struct allocinfo_counter counter;
 };
 
+enum {
+	ALLOCINFO_FILTER_MODNAME,
+	ALLOCINFO_FILTER_FUNCTION,
+	ALLOCINFO_FILTER_FILENAME,
+	ALLOCINFO_FILTER_LINENO,
+	__ALLOCINFO_FILTER_LAST = ALLOCINFO_FILTER_LINENO
+};
+
+#define ALLOCINFO_FILTER_MASK_MODNAME		(1 << ALLOCINFO_FILTER_MODNAME)
+#define ALLOCINFO_FILTER_MASK_FUNCTION		(1 << ALLOCINFO_FILTER_FUNCTION)
+#define ALLOCINFO_FILTER_MASK_FILENAME		(1 << ALLOCINFO_FILTER_FILENAME)
+#define ALLOCINFO_FILTER_MASK_LINENO		(1 << ALLOCINFO_FILTER_LINENO)
+
+#define ALLOCINFO_FILTER_MASKS \
+	((1 << (__ALLOCINFO_FILTER_LAST + 1)) - 1)
+
+struct allocinfo_filter {
+	__u64 mask; /* bitmask of the filter fields used */
+	struct allocinfo_tag fields;
+};
+
 struct allocinfo_get_at {
-	__u64 pos;	/* input */
+	/* inputs */
+	__u64 pos;
+	struct allocinfo_filter filter;
+	/* output */
 	struct allocinfo_tag_data data;
 };