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| author | SJ Park <sj@kernel.org> | 2026-09-11 06:55:04 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-10-08 22:55:09 -0700 |
| commit | 283b3d31ec7a62bf4517fc57d07d8faf2bdbc841 (patch) | |
| tree | 4722bca08222201de9896a50ce9d93c1a895e716 /include | |
| parent | 724468135d75874f14d1f66ab4d330de636170e6 (diff) | |
| download | linux-next-283b3d31ec7a62bf4517fc57d07d8faf2bdbc841.tar.gz linux-next-283b3d31ec7a62bf4517fc57d07d8faf2bdbc841.zip | |
mm/damon/core: extend probe_hits_wsum() for moving sum based calculation
damon_probe_hits_wsum() is being called only in aggregation time. In
future, it could also be used by DAMOS. In this case, since DAMOS uses
its own apply_interval, it could be called in sampling time. Then using
the not yet fully aggregated probe_hits could result in suboptimum
outcomes. Extend damon_probe_hits_wsum() to get the weighted sum based on
moving sum to prepare the DAMOS usage.
Link: https://lore.kernel.org/20260911135510.96914-3-sj@kernel.org
Signed-off-by: SJ Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/damon.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/damon.h b/include/linux/damon.h index e27ed156e765..4be7d1df8e71 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -1075,7 +1075,7 @@ unsigned int damon_nr_accesses_mvsum(struct damon_region *r, struct damon_ctx *ctx); unsigned char damon_probe_hits_mvsum(int probe_idx, struct damon_region *r, struct damon_ctx *ctx); -unsigned int damon_probe_hits_wsum(struct damon_region *r, bool last, +unsigned int damon_probe_hits_wsum(struct damon_region *r, bool last, bool mv, struct damon_ctx *ctx); int damon_set_regions(struct damon_target *t, struct damon_addr_range *ranges, |