diff options
| author | SJ Park <sj@kernel.org> | 2026-09-01 06:24:54 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-10-06 17:39:28 -0700 |
| commit | c174156e60f2b234b3370963118db76fa1effd0e (patch) | |
| tree | e512e1ca272f7bc2c2a310dd957408e6cba11be4 /include/linux | |
| parent | 9641c80162a1147493d3a5a7d6ca0ec9f5fc7673 (diff) | |
| download | linux-c174156e60f2b234b3370963118db76fa1effd0e.tar.gz linux-c174156e60f2b234b3370963118db76fa1effd0e.zip | |
mm/damon/core: introduce damon_operations->prep_probes()
damon_prep needs to be executed by the underlying DAMON operation set.
Extend the operation set callback list for the execution of damon_prep
actions. If the underlying operation set implements the callback, DAMON
core executes it in the monitoring preparation time.
Link: https://lore.kernel.org/20260901132506.99243-8-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: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/damon.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/damon.h b/include/linux/damon.h index 1780c14942e6..871d26adf6ae 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. + * @prep_probes: Prepare applying probes for each region. * @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. @@ -657,6 +658,9 @@ 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. + * @prep_probes should execute required &struct damon_prep for next &struct + * damon_probe applications to each region. It should also set + * &damon_region->sampling_addr of each region if ``set_samples`` is true. * @apply_probes should apply the data attribute probes to each region and * accordingly update the probe hits counter of the region. It should also * set &damon_region->sampling_addr of each region if ``set_samples`` is true. @@ -679,6 +683,7 @@ 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 (*prep_probes)(struct damon_ctx *context, bool set_samples); unsigned int (*apply_probes)(struct damon_ctx *context, bool set_samples, bool return_max_wsum); int (*get_scheme_score)(struct damon_ctx *context, |