37  * discontiguous regions which cover every mapped areas.  However, the three
38  * regions should not include the two biggest unmapped areas in the original
40  * heap and the mmap()-ed regions, and 2) the mmap()-ed regions and stack.
47  * three regions and returns.  For more detail, refer to the comment of
53  * mapped.  To cover every mappings, the three regions should start with 10,
56  * unmapped areas, and thus it should be converted to three regions of 10-25,
62 	struct damon_addr_range regions[3] = {0,};  in damon_test_three_regions_in_vmas()  local
76 	__damon_va_three_regions(&mm, regions);  in damon_test_three_regions_in_vmas()
78 	KUNIT_EXPECT_EQ(test, 10ul, regions[0].start);  in damon_test_three_regions_in_vmas()
79 	KUNIT_EXPECT_EQ(test, 25ul, regions[0].end);  in damon_test_three_regions_in_vmas()
80 	KUNIT_EXPECT_EQ(test, 200ul, regions[1].start);  in damon_test_three_regions_in_vmas()
81 	KUNIT_EXPECT_EQ(test, 220ul, regions[1].end);  in damon_test_three_regions_in_vmas()
82 	KUNIT_EXPECT_EQ(test, 300ul, regions[2].start);  in damon_test_three_regions_in_vmas()
83 	KUNIT_EXPECT_EQ(test, 330ul, regions[2].end);  in damon_test_three_regions_in_vmas()
103  * regions		an array containing start/end addresses of current
104  *			monitoring target regions
105  * nr_regions		the number of the addresses in 'regions'
106  * three_regions	The three regions that need to be applied now
107  * expected		start/end addresses of monitoring target regions that
113  * three regions, and updates the monitoring target regions to fit in the three
114  * regions.  The update of current target regions is the role of
117  * This test passes the given target regions and the new three regions that
118  * need to be applied to the function and check whether it updates the regions
122 				unsigned long *regions, int nr_regions,  in damon_do_test_apply_three_regions()  argument
132 		r = damon_new_region(regions[i * 2], regions[i * 2 + 1]);  in damon_do_test_apply_three_regions()
146  * This function test most common case where the three big regions are only
147  * slightly changed.  Target regions should adjust their boundary (10-20-30,
148  * 50-55, 70-80, 90-100) to fit with the new big regions or remove target
149  * regions (57-79) that now out of the three regions.
154 	unsigned long regions[] = {10, 20, 20, 30, 50, 55, 55, 57, 57, 59,  in damon_test_apply_three_regions1()  local
165 	damon_do_test_apply_three_regions(test, regions, ARRAY_SIZE(regions),  in damon_test_apply_three_regions1()
171  * now require two target regions (50-55, 57-59) to be removed.
176 	unsigned long regions[] = {10, 20, 20, 30, 50, 55, 55, 57, 57, 59,  in damon_test_apply_three_regions2()  local
187 	damon_do_test_apply_three_regions(test, regions, ARRAY_SIZE(regions),  in damon_test_apply_three_regions2()
193  * different area (50-59 -> 61-63).  The target regions which were in the old
200 	unsigned long regions[] = {10, 20, 20, 30, 50, 55, 55, 57, 57, 59,  in damon_test_apply_three_regions3()  local
211 	damon_do_test_apply_three_regions(test, regions, ARRAY_SIZE(regions),  in damon_test_apply_three_regions3()
216  * Test another big change.  Both of the second and third big regions (50-59
218  * 65-68).  The target regions which were in the old second and third big
219  * regions should now be removed and new target regions covering the new second
220  * and third big regions should be created.
225 	unsigned long regions[] = {10, 20, 20, 30, 50, 55, 55, 57, 57, 59,  in damon_test_apply_three_regions4()  local
235 	damon_do_test_apply_three_regions(test, regions, ARRAY_SIZE(regions),  in damon_test_apply_three_regions4()