diff options
| author | SeongJae Park <sj@kernel.org> | 2026-05-18 16:40:51 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-05-28 21:31:10 -0700 |
| commit | 4c84070cc169a4107e3139035d8a66cd1e814435 (patch) | |
| tree | 076c2220c701d8564e5549a5f37f5c255efb1ff6 /mm | |
| parent | c6d8cd503a31cb301e5ef9edfcb80c486921ceb7 (diff) | |
| download | linux-next-history-4c84070cc169a4107e3139035d8a66cd1e814435.tar.gz | |
mm/damon/core: introduce damon_filter
Define a data structure for constructing damon_probe's attributes check,
namely damon_filter. It is very similar to damos_filter but works only
for monitoring purposes. Also embed that into damon_probe, implement
essential handling of the link, with fundamental helpers.
Link: https://lore.kernel.org/20260518234119.97569-4-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 'mm')
| -rw-r--r-- | mm/damon/core.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/mm/damon/core.c b/mm/damon/core.c index 8a55cc61d2972..d01417955a3b4 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -113,6 +113,31 @@ int damon_select_ops(struct damon_ctx *ctx, enum damon_ops_id id) return err; } +struct damon_filter *damon_new_filter(enum damon_filter_type type, + bool matching, bool allow) +{ + struct damon_filter *filter; + + filter = kmalloc_obj(*filter); + if (!filter) + return NULL; + filter->type = type; + filter->matching = matching; + filter->allow = allow; + INIT_LIST_HEAD(&filter->list); + return filter; +} + +void damon_add_filter(struct damon_probe *p, struct damon_filter *f) +{ + list_add_tail(&f->list, &p->filters); +} + +static void damon_free_filter(struct damon_filter *f) +{ + kfree(f); +} + struct damon_probe *damon_new_probe(void) { struct damon_probe *p; @@ -120,6 +145,7 @@ struct damon_probe *damon_new_probe(void) p = kmalloc_obj(*p); if (!p) return NULL; + INIT_LIST_HEAD(&p->filters); INIT_LIST_HEAD(&p->list); return p; } @@ -136,6 +162,10 @@ static void damon_del_probe(struct damon_probe *p) static void damon_free_probe(struct damon_probe *p) { + struct damon_filter *f, *next; + + damon_for_each_filter_safe(f, next, p) + damon_free_filter(f); kfree(p); } |