diff options
Diffstat (limited to 'mm/damon/vaddr.c')
| -rw-r--r-- | mm/damon/vaddr.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c index 53371bbec605..02ab448d9b1e 100644 --- a/mm/damon/vaddr.c +++ b/mm/damon/vaddr.c @@ -564,6 +564,11 @@ static void __damon_va_check_access(struct mm_struct *mm, static unsigned long last_folio_sz = PAGE_SIZE; static bool last_accessed; + if (!mm) { + damon_update_region_access_rate(r, false); + return; + } + /* If the region is in the last checked page, reuse the result */ if (same_target && (ALIGN_DOWN(last_addr, last_folio_sz) == ALIGN_DOWN(r->sampling_addr, last_folio_sz))) { @@ -587,15 +592,14 @@ static unsigned int damon_va_check_accesses(struct damon_ctx *ctx) damon_for_each_target(t, ctx) { mm = damon_get_mm(t); - if (!mm) - continue; same_target = false; damon_for_each_region(r, t) { __damon_va_check_access(mm, r, same_target); max_nr_accesses = max(r->nr_accesses, max_nr_accesses); same_target = true; } - mmput(mm); + if (mm) + mmput(mm); } return max_nr_accesses; |