diff options
| author | SeongJae Park <sj@kernel.org> | 2025-01-06 11:33:52 -0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-01-25 20:22:27 -0800 |
| commit | 60fa9355a6c620f7b727d3fdb433fb6cf714a9b0 (patch) | |
| tree | 24d458f70255f4db05ace63244459a965a42d981 /mm | |
| parent | c0cb9d91bf297fdcd3bd3126d793a22e720e1990 (diff) | |
mm/damon/core: implement per-scheme ops-handled filter-passed bytes stat
Implement a new per-DAMOS scheme statistic field, namely
sz_ops_filter_passed, using the changed damon_operations->apply_scheme()
interface. It counts total bytes of memory that given DAMOS action tried
to be applied, and passed the operations layer handled region-internal
filters of the scheme. DAMON API users can access it using DAMON-internal
safe access features such as damon_call() and/or damos_walk().
Link: https://lkml.kernel.org/r/20250106193401.109161-8-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/damon/core.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/damon/core.c b/mm/damon/core.c index c6ccb4825c57..c4ce72a86d81 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -1362,13 +1362,15 @@ static bool damos_skip_charged_region(struct damon_target *t, } static void damos_update_stat(struct damos *s, - unsigned long sz_tried, unsigned long sz_applied) + unsigned long sz_tried, unsigned long sz_applied, + unsigned long sz_ops_filter_passed) { s->stat.nr_tried++; s->stat.sz_tried += sz_tried; if (sz_applied) s->stat.nr_applied++; s->stat.sz_applied += sz_applied; + s->stat.sz_ops_filter_passed += sz_ops_filter_passed; } static bool __damos_filter_out(struct damon_ctx *ctx, struct damon_target *t, @@ -1586,7 +1588,7 @@ static void damos_apply_scheme(struct damon_ctx *c, struct damon_target *t, r->age = 0; update_stat: - damos_update_stat(s, sz, sz_applied); + damos_update_stat(s, sz, sz_applied, sz_ops_filter_passed); } static void damon_do_apply_schemes(struct damon_ctx *c, |