diff options
| author | SeongJae Park <sj@kernel.org> | 2025-03-04 13:19:10 -0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-03-17 00:05:39 -0700 |
| commit | dd038b728c8a2a0e1a632b767a50f09f076dab79 (patch) | |
| tree | 3c0aad53c48082b0f629e467292ad5e7f0b7996e | |
| parent | 627983a55221d429db4fe9ecb75c4ef2f04acd15 (diff) | |
mm/damon: add default allow/reject behavior fields to struct damos
Current default allow/reject behavior of filters handling stage has made
before introduction of the allow behavior. For allow-filters usage, it is
confusing and inefficient.
It is more intuitive to decide the default filtering stage allow/reject
behavior as opposite to the last filter's behavior. The decision should
be made separately for core and operations layers' filtering stages, since
last core layer-handled filter is not really a last filter if there are
operations layer handling filters.
Keeping separate decisions for the two categories can make the logic
simpler. Add fields for storing the two decisions.
Link: https://lkml.kernel.org/r/20250304211913.53574-7-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-- | include/linux/damon.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/damon.h b/include/linux/damon.h index 7f76e2e99f37..52559475dbe7 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -502,6 +502,9 @@ struct damos { * layer-handled filters. If true, operations layer allows it, too. */ bool core_filters_allowed; + /* whether to reject core/ops filters umatched regions */ + bool core_filters_default_reject; + bool ops_filters_default_reject; /* public: */ struct damos_quota quota; struct damos_watermarks wmarks; |