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b=GOzn+ND9YBjb6bLwwltmgdYGJIebzuoGqSANOwAAPWczWJzio769cUd6gzWaLkYRn Tv9pInA4WNSBzAck/t8eNKChZ+5sfPHe10R4yK04537wtBB69PqtAqOZiv3Smpyguw zm+vGIOhhKWf9Djx7mZcQL7loz9Orv4AmNXlWIMdAyzdgaf+OSS8jlwmVuRy1EOP7n nYDGa2kLggB2KkeLRNt6VHj5HfzeJ+QIvfkm7L6kmUoZI5j9/kaGl7ISlA2IRNv35i JNBmjbBxHepBUzk5elZ2YJ2QgVsDhLksoa3Sg4t+KoqauP8vr7blBWchXHPLdVzJrr IkEmE790OaRxw== From: SJ Park To: Cc: SJ Park , Andrew Morton , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v1.1 01/16] mm/damon/core: introduce damon_probe->weight Date: Mon, 6 Jul 2026 07:18:55 -0700 Message-ID: <20260706141912.88445-2-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260706141912.88445-1-sj@kernel.org> References: <20260706141912.88445-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 7F6B21C0008 X-Stat-Signature: 6rd1a4keug9pwqz6sxru7ee4zt87aztj X-HE-Tag: 1783347561-960214 X-HE-Meta: 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 fx/ajW9b 0u/s88ypvkW/Hcj1tDlsbML47VGjAe7m0bRjdtXbvlOMQyfky2WSMzkokVqav/0xFOKtCEIBCs3qDlA6oC4eu91fv+nDzS2FF8/CaD7IARwKj1kVMK2WJ+B+Gfnm62fueAk1rp+QjnZHC3toAZ458yylZWeXglNyzuG7odmfaALeshMhp3h3nj0vKgZZ5kd6vXob+kaPpXdl1uioNy92uYi/ME5kjH8UGgPh6hbqZdjJLWYDO8LZfwBVU8+aQy5Aj72+9RNolvuZ09Ouknz15D3A+sg== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Add a new field, weight to damon_probe struct. The field is used to specify the degree of the API caller's interest to the data attribute of the probe. Signed-off-by: SJ Park --- include/linux/damon.h | 2 ++ mm/damon/core.c | 3 +++ 2 files changed, 5 insertions(+) diff --git a/include/linux/damon.h b/include/linux/damon.h index 19b7e839bde0b..7d0a920fe4b83 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -760,10 +760,12 @@ struct damon_filter { /** * struct damon_probe - Data region attribute probe. * + * @weight: Relative priority of the attribute for this probe. * @filters: Filters for assessing if a given region is for this probe. * @list: Siblings list. */ struct damon_probe { + unsigned int weight; struct list_head filters; struct list_head list; }; diff --git a/mm/damon/core.c b/mm/damon/core.c index 390e00b3685ef..ca5c3f3e45fc6 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -166,6 +166,7 @@ struct damon_probe *damon_new_probe(void) p = kmalloc_obj(*p); if (!p) return NULL; + p->weight = 0; INIT_LIST_HEAD(&p->filters); INIT_LIST_HEAD(&p->list); return p; @@ -1641,6 +1642,7 @@ static int damon_commit_probes(struct damon_ctx *dst, struct damon_ctx *src) damon_for_each_probe_safe(dst_probe, next, dst) { src_probe = damon_nth_probe(i++, src); if (src_probe) { + dst_probe->weight = src_probe->weight; err = damon_commit_filters(dst_probe, src_probe); if (err) return err; @@ -1657,6 +1659,7 @@ static int damon_commit_probes(struct damon_ctx *dst, struct damon_ctx *src) if (!new_probe) return -ENOMEM; damon_add_probe(dst, new_probe); + new_probe->weight = src_probe->weight; err = damon_commit_filters(new_probe, src_probe); if (err) return err; -- 2.47.3