diff options
| author |   SeongJae Park <sj@kernel.org> | 2025-03-04 13:19:08 -0800 |
|---|---|---|
| committer |   Andrew Morton <akpm@linux-foundation.org> | 2025-03-17 00:05:38 -0700 |
| commit | 2a689e4e83bdc90cd00ca21aa28d337d202f4950 (patch) | |
| tree | dd2872578acf137ee48cf01719110b19f8cf2c7c | |
| parent | mm/damon/core: support committing ops_filters (diff) | |
| download | wireguard-linux-2a689e4e83bdc90cd00ca21aa28d337d202f4950.tar.xz wireguard-linux-2a689e4e83bdc90cd00ca21aa28d337d202f4950.zip | |
mm/damon/core: put ops-handled filters to damos->ops_filters
damos->ops_filters has introduced to be used for all operations layer
handled filters. But DAMON kernel API callers can put any type of DAMOS
filters to any of damos->filters and damos->ops_filters. DAMON user-space
ABI users have no way to use ->ops_filters at all. Update
damos_add_filter(), which should be used by API callers to install DAMOS
filters, to add filters to ->filters and ->ops_filters depending on their
handling layer. The change forces both API callers and ABI users to use
proper lists since ABI users use the API internally.
Link: https://lkml.kernel.org/r/20250304211913.53574-5-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>
| -rw-r--r-- | mm/damon/core.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/mm/damon/core.c b/mm/damon/core.c index 1daccccb5d67..3fbc31d17239 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -281,9 +281,24 @@ struct damos_filter *damos_new_filter(enum damos_filter_type type, return filter; } +static bool damos_filter_for_ops(enum damos_filter_type type) +{ + switch (type) { + case DAMOS_FILTER_TYPE_ADDR: + case DAMOS_FILTER_TYPE_TARGET: + return false; + default: + break; + } + return true; +} + void damos_add_filter(struct damos *s, struct damos_filter *f) { - list_add_tail(&f->list, &s->filters); + if (damos_filter_for_ops(f->type)) + list_add_tail(&f->list, &s->ops_filters); + else + list_add_tail(&f->list, &s->filters); } static void damos_del_filter(struct damos_filter *f) |