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bh=YPnSi5M7u97aTRieMiHi7Bu1nhCZ+HHUKBFpBBpeqKc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bwtpk9Vd4vrAjXdu+Ctd4td0gpjFcxyLgrazZzrenIIZvhJn+IUMrfbqM012cAkPK 4VyOKWJtp1gDHMdQ+i+MyhhJ9tz0oclTNl3ruANfwuKzTKbjbMp2uGqePbWHoHvztQ 9ghRHb7AHRZZAzH7iYKqlNrPAZuYtfgfBcdH2H3O6fZDYHfpA3bAQeGokqZ2OQ1dCs t9bkI/OOqV/F5+nKVCawY9qS0EMKXsyDlervg5viMH36AAOUy0zD54FEcU6VMZwRo4 Mv6ak+y8CjbpLzR5hpINFvZFct2LEgTwreIMdv27mspWLjTQY1JJM9FHFUlEmrMoGK TJgbSfE0dwdPw== From: SeongJae Park To: Cc: SeongJae Park , Andrew Morton , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v3 16/37] mm/damon/core: implement damon_sample_filter manipulations Date: Sun, 7 Dec 2025 22:29:20 -0800 Message-ID: <20251208062943.68824-17-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20251208062943.68824-1-sj@kernel.org> References: <20251208062943.68824-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 24EBD8000F X-Rspam-User: X-Rspamd-Server: rspam12 X-Stat-Signature: rdg1p3bprq7nwu44m8cry3m54kzxs8co X-HE-Tag: 1765175413-938240 X-HE-Meta: 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 LDTZT+ni oX55UjNLsL2sRUNNOrKEyMmRs1Y2RLrrnKSsVxJDHgOxyqLDGj2dih1sXqLw2/JdDlpCBdrlp9ea8PInMJUj994pfdUVlQ08BsTdep9KyQh4mWiK1id0uOizR9HTLYC0H3n9OoXX/Y6pa0SJ0korphG2KZmcdyJja5yFYY2uTJK3g8e5racztSpDmQXHYiZjpdb+IAW4QVHJn8XHvtnWvekh4bB2lUZVAzlP09OloMsj8eZLOAX9vUx8maBR5qCGN4VcUoGS2HYpVlDjVq1h5T7+XrBrZB7noyyjRFcyMDEEZXiNUqoTF4eSCoN/viJtBRO63 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Add basic manipulation helper functions for damon_sample_filter data structure. Signed-off-by: SeongJae Park --- include/linux/damon.h | 15 +++++++++++++++ mm/damon/core.c | 45 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 60 insertions(+) diff --git a/include/linux/damon.h b/include/linux/damon.h index 78be584ce5dd..aff34dce7c7c 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -947,6 +947,12 @@ static inline unsigned long damon_sz_region(struct damon_region *r) #define damon_for_each_target_safe(t, next, ctx) \ list_for_each_entry_safe(t, next, &(ctx)->adaptive_targets, list) +#define damon_for_each_sample_filter(f, control) \ + list_for_each_entry(f, &(control)->sample_filters, list) + +#define damon_for_each_sample_filter_safe(f, next, control) \ + list_for_each_entry_safe(f, next, &(control)->sample_filters, list) + #define damon_for_each_scheme(s, ctx) \ list_for_each_entry(s, &(ctx)->schemes, list) @@ -1022,6 +1028,15 @@ void damon_free_target(struct damon_target *t); void damon_destroy_target(struct damon_target *t, struct damon_ctx *ctx); unsigned int damon_nr_regions(struct damon_target *t); +struct damon_sample_filter *damon_new_sample_filter( + enum damon_sample_filter_type filter_type, bool matching, + bool allow); +void damon_add_sample_filter(struct damon_sample_control *ctrl, + struct damon_sample_filter *filter); +void damon_free_sample_filter(struct damon_sample_filter *filter); +void damon_destroy_sample_filter(struct damon_sample_filter *filter, + struct damon_sample_control *ctrl); + struct damon_ctx *damon_new_ctx(void); void damon_destroy_ctx(struct damon_ctx *ctx); int damon_set_attrs(struct damon_ctx *ctx, struct damon_attrs *attrs); diff --git a/mm/damon/core.c b/mm/damon/core.c index d2f842d8afd2..4b98473eef84 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -533,6 +533,46 @@ unsigned int damon_nr_regions(struct damon_target *t) return t->nr_regions; } +struct damon_sample_filter *damon_new_sample_filter( + enum damon_sample_filter_type filter_type, bool matching, + bool allow) +{ + struct damon_sample_filter *filter; + + filter = kmalloc(sizeof(*filter), GFP_KERNEL); + if (!filter) + return NULL; + filter->type = filter_type; + filter->matching = matching; + filter->allow = allow; + INIT_LIST_HEAD(&filter->list); + return filter; +} + +void damon_add_sample_filter(struct damon_sample_control *ctrl, + struct damon_sample_filter *filter) +{ + list_add_tail(&filter->list, &ctrl->sample_filters); +} + +static void damon_del_sample_filter(struct damon_sample_filter *f, + struct damon_sample_control *ctrl) +{ + list_del(&f->list); +} + +void damon_free_sample_filter(struct damon_sample_filter *f) +{ + kfree(f); +} + +void damon_destroy_sample_filter(struct damon_sample_filter *f, + struct damon_sample_control *ctrl) +{ + damon_del_sample_filter(f, ctrl); + damon_free_sample_filter(f); +} + struct damon_ctx *damon_new_ctx(void) { struct damon_ctx *ctx; @@ -561,6 +601,7 @@ struct damon_ctx *damon_new_ctx(void) ctx->attrs.max_nr_regions = 1000; ctx->sample_control.primitives_enabled.page_table = true; + INIT_LIST_HEAD(&ctx->sample_control.sample_filters); ctx->addr_unit = 1; ctx->min_sz_region = DAMON_MIN_REGION; @@ -582,12 +623,16 @@ static void damon_destroy_targets(struct damon_ctx *ctx) void damon_destroy_ctx(struct damon_ctx *ctx) { struct damos *s, *next_s; + struct damon_sample_filter *f, *next_f; damon_destroy_targets(ctx); damon_for_each_scheme_safe(s, next_s, ctx) damon_destroy_scheme(s); + damon_for_each_sample_filter_safe(f, next_f, &ctx->sample_control) + damon_destroy_sample_filter(f, &ctx->sample_control); + kfree(ctx); } -- 2.47.3