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| author | SeongJae Park <sj@kernel.org> | 2026-05-18 16:41:14 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-05-28 21:31:16 -0700 |
| commit | e4ff990155310aab05d120581a8ade7f7928e44c (patch) | |
| tree | 45d26b767830f5ca64b612623734a2f7d8c0c4ac /mm | |
| parent | 1eb838708cbd64ff9141780da617b0f1d6bd72f6 (diff) | |
| download | linux-next-history-e4ff990155310aab05d120581a8ade7f7928e44c.tar.gz | |
mm/damon/sysfs: setup damon_filter->memcg_id from path
Find and set the memcg_id for damon_filter from the user-passed memory
cgroup path when updating the DAMON input parameters.
Link: https://lore.kernel.org/20260518234119.97569-27-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 | 2 | ||||
| -rw-r--r-- | mm/damon/sysfs.c | 11 |
2 files changed, 12 insertions, 1 deletions
diff --git a/mm/damon/core.c b/mm/damon/core.c index 9a5a835a4d3f7..4e223857a0f99 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -143,7 +143,7 @@ static void damon_free_filter(struct damon_filter *f) kfree(f); } -static void damon_destroy_filter(struct damon_filter *f) +void damon_destroy_filter(struct damon_filter *f) { damon_del_filter(f); damon_free_filter(f); diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c index 0f6379caf4816..2e95e3bac774d 100644 --- a/mm/damon/sysfs.c +++ b/mm/damon/sysfs.c @@ -1927,6 +1927,17 @@ static int damon_sysfs_set_probes(struct damon_ctx *ctx, sys_filter->allow); if (!filter) return -ENOMEM; + if (filter->type == DAMON_FILTER_TYPE_MEMCG) { + int err; + + err = damon_sysfs_memcg_path_to_id( + sys_filter->path, + &filter->memcg_id); + if (err) { + damon_destroy_filter(filter); + return err; + } + } damon_add_filter(c, filter); } } |