diff options
| author | Quanmin Yan <yanquanmin1@huawei.com> | 2025-08-28 20:12:42 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-09-14 02:55:24 +0300 |
| commit | d8f867fa0825fb3e358457566d7326d8aab2406a (patch) | |
| tree | b68eb0799b9762b8721223c4bd85f766afd908c8 /include | |
| parent | 56cd19404abae2c17d1e6d1e3c7d23dd79b75039 (diff) | |
| download | linux-d8f867fa0825fb3e358457566d7326d8aab2406a.tar.xz | |
mm/damon: add damon_ctx->min_sz_region
Adopting addr_unit would make DAMON_MINREGION 'addr_unit * 4096' bytes and
cause data alignment issues[1].
Add damon_ctx->min_sz_region to change DAMON_MIN_REGION from a global
macro value to per-context variable.
Link: https://lkml.kernel.org/r/20250828171242.59810-12-sj@kernel.org
Link: https://lore.kernel.org/all/527714dd-0e33-43ab-bbbd-d89670ba79e7@huawei.com [1]
Signed-off-by: Quanmin Yan <yanquanmin1@huawei.com>
Signed-off-by: SeongJae Park <sj@kernel.org>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: ze zuo <zuoze1@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/damon.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/damon.h b/include/linux/damon.h index 6fa52f7495d9..ec8716292c09 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -747,6 +747,7 @@ struct damon_attrs { * * @ops: Set of monitoring operations for given use cases. * @addr_unit: Scale factor for core to ops address conversion. + * @min_sz_region: Minimum region size. * @adaptive_targets: Head of monitoring targets (&damon_target) list. * @schemes: Head of schemes (&damos) list. */ @@ -789,6 +790,7 @@ struct damon_ctx { struct damon_operations ops; unsigned long addr_unit; + unsigned long min_sz_region; struct list_head adaptive_targets; struct list_head schemes; @@ -877,7 +879,7 @@ static inline void damon_insert_region(struct damon_region *r, void damon_add_region(struct damon_region *r, struct damon_target *t); void damon_destroy_region(struct damon_region *r, struct damon_target *t); int damon_set_regions(struct damon_target *t, struct damon_addr_range *ranges, - unsigned int nr_ranges); + unsigned int nr_ranges, unsigned long min_sz_region); void damon_update_region_access_rate(struct damon_region *r, bool accessed, struct damon_attrs *attrs); |