diff options
| author | SeongJae Park <sj@kernel.org> | 2026-05-18 16:40:54 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-05-28 21:31:11 -0700 |
| commit | 2d343e66871119e3cc79565209f6908853508d77 (patch) | |
| tree | a569ab3f230cfd3881500fae7f0789f20067d485 /include | |
| parent | 23674f219eed7df53d27a7590ee1f48f7345ad3b (diff) | |
| download | linux-next-history-2d343e66871119e3cc79565209f6908853508d77.tar.gz | |
mm/damon/core: introduce damon_ops->apply_probes
Extend damon_operations struct with a new callback, namely apply_probes.
The callback will be invoked for data attributes monitoring. More
specifically, the callback will apply damon_probe objects to each region
and update the per-region per-probe counters for the number of encountered
probe-positive samples.
Link: https://lore.kernel.org/20260518234119.97569-7-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.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: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/damon.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/damon.h b/include/linux/damon.h index 3a30af119ac6e..1fb271a35e98f 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -630,6 +630,7 @@ enum damon_ops_id { * @update: Update operations-related data structures. * @prepare_access_checks: Prepare next access check of target regions. * @check_accesses: Check the accesses to target regions. + * @apply_probes: Apply probes for each region. * @get_scheme_score: Get the score of a region for a scheme. * @apply_scheme: Apply a DAMON-based operation scheme. * @target_valid: Determine if the target is valid. @@ -656,6 +657,8 @@ enum damon_ops_id { * last preparation and update the number of observed accesses of each region. * It should also return max number of observed accesses that made as a result * of its update. The value will be used for regions adjustment threshold. + * @apply_probes should apply the data attribute probes to each region and + * accordingly update the probe hits counter of the region. * @get_scheme_score should return the priority score of a region for a scheme * as an integer in [0, &DAMOS_MAX_SCORE]. * @apply_scheme is called from @kdamond when a region for user provided @@ -673,6 +676,7 @@ struct damon_operations { void (*update)(struct damon_ctx *context); void (*prepare_access_checks)(struct damon_ctx *context); unsigned int (*check_accesses)(struct damon_ctx *context); + void (*apply_probes)(struct damon_ctx *context); int (*get_scheme_score)(struct damon_ctx *context, struct damon_region *r, struct damos *scheme); unsigned long (*apply_scheme)(struct damon_ctx *context, |