diff options
| -rw-r--r-- | mm/damon/core.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/mm/damon/core.c b/mm/damon/core.c index 68b3b4bbc8fc..8360cb4c506e 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -356,6 +356,19 @@ int damon_set_regions(struct damon_target *t, struct damon_addr_range *ranges, damon_destroy_region(r, t); } + if (!damon_nr_regions(t)) { + for (i = 0; i < nr_ranges; i++) { + r = damon_new_region( + ALIGN_DOWN(ranges[i].start, + min_region_sz), + ALIGN(ranges[i].end, min_region_sz)); + if (!r) + return -ENOMEM; + damon_add_region(r, t); + } + return 0; + } + r = damon_first_region(t); /* Add new regions or resize existing regions to fit in the ranges */ for (i = 0; i < nr_ranges; i++) { |