diff options
| -rw-r--r-- | mm/damon/sysfs-schemes.c | 46 |
1 files changed, 36 insertions, 10 deletions
diff --git a/mm/damon/sysfs-schemes.c b/mm/damon/sysfs-schemes.c index 65c6091cd8795..e4e36c34ec0e5 100644 --- a/mm/damon/sysfs-schemes.c +++ b/mm/damon/sysfs-schemes.c @@ -309,8 +309,18 @@ static const struct kobj_type damon_sysfs_stats_ktype = { * filter directory */ +/* + * enum damos_sysfs_filter_handle_layer - Layers handling filters of a dir. + */ +enum damos_sysfs_filter_handle_layer { + DAMOS_SYSFS_FILTER_HANDLE_LAYER_CORE, + DAMOS_SYSFS_FILTER_HANDLE_LAYER_OPS, + DAMOS_SYSFS_FILTER_HANDLE_LAYER_BOTH, +}; + struct damon_sysfs_scheme_filter { struct kobject kobj; + enum damos_sysfs_filter_handle_layer handle_layer; enum damos_filter_type type; bool matching; bool allow; @@ -320,9 +330,15 @@ struct damon_sysfs_scheme_filter { int target_idx; }; -static struct damon_sysfs_scheme_filter *damon_sysfs_scheme_filter_alloc(void) +static struct damon_sysfs_scheme_filter *damon_sysfs_scheme_filter_alloc( + enum damos_sysfs_filter_handle_layer layer) { - return kzalloc(sizeof(struct damon_sysfs_scheme_filter), GFP_KERNEL); + struct damon_sysfs_scheme_filter *filter; + + filter = kzalloc(sizeof(struct damon_sysfs_scheme_filter), GFP_KERNEL); + if (filter) + filter->handle_layer = layer; + return filter; } /* Should match with enum damos_filter_type */ @@ -595,14 +611,20 @@ static const struct kobj_type damon_sysfs_scheme_filter_ktype = { struct damon_sysfs_scheme_filters { struct kobject kobj; + enum damos_sysfs_filter_handle_layer handle_layer; struct damon_sysfs_scheme_filter **filters_arr; int nr; }; static struct damon_sysfs_scheme_filters * -damon_sysfs_scheme_filters_alloc(void) +damon_sysfs_scheme_filters_alloc(enum damos_sysfs_filter_handle_layer layer) { - return kzalloc(sizeof(struct damon_sysfs_scheme_filters), GFP_KERNEL); + struct damon_sysfs_scheme_filters *filters; + + filters = kzalloc(sizeof(struct damon_sysfs_scheme_filters), GFP_KERNEL); + if (filters) + filters->handle_layer = layer; + return filters; } static void damon_sysfs_scheme_filters_rm_dirs( @@ -635,7 +657,8 @@ static int damon_sysfs_scheme_filters_add_dirs( filters->filters_arr = filters_arr; for (i = 0; i < nr_filters; i++) { - filter = damon_sysfs_scheme_filter_alloc(); + filter = damon_sysfs_scheme_filter_alloc( + filters->handle_layer); if (!filter) { damon_sysfs_scheme_filters_rm_dirs(filters); return -ENOMEM; @@ -1607,11 +1630,11 @@ static int damon_sysfs_scheme_set_watermarks(struct damon_sysfs_scheme *scheme) } static int damon_sysfs_scheme_set_filters(struct damon_sysfs_scheme *scheme, - const char *name, + enum damos_sysfs_filter_handle_layer layer, const char *name, struct damon_sysfs_scheme_filters **filters_ptr) { struct damon_sysfs_scheme_filters *filters = - damon_sysfs_scheme_filters_alloc(); + damon_sysfs_scheme_filters_alloc(layer); int err; if (!filters) @@ -1630,15 +1653,18 @@ static int damos_sysfs_set_filter_dirs(struct damon_sysfs_scheme *scheme) { int err; - err = damon_sysfs_scheme_set_filters(scheme, "filters", + err = damon_sysfs_scheme_set_filters(scheme, + DAMOS_SYSFS_FILTER_HANDLE_LAYER_BOTH, "filters", &scheme->filters); if (err) return err; - err = damon_sysfs_scheme_set_filters(scheme, "core_filters", + err = damon_sysfs_scheme_set_filters(scheme, + DAMOS_SYSFS_FILTER_HANDLE_LAYER_CORE, "core_filters", &scheme->core_filters); if (err) goto put_filters_out; - err = damon_sysfs_scheme_set_filters(scheme, "ops_filters", + err = damon_sysfs_scheme_set_filters(scheme, + DAMOS_SYSFS_FILTER_HANDLE_LAYER_OPS, "ops_filters", &scheme->ops_filters); if (err) goto put_core_filters_out; |