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b=XDSeZlvP5bHHzrY9RsxTybFnEaDxTHC2K1IKsQ/7vcQQpkoUc6BnaJQHNbkgzY78/ 0AbJMjuSIaECN3qkL/eaCvjuNboRYhwkwXi6AVQkANWnyL4ugoRDSPo6INRETzYrU/ BE0SLuuRm/320dBmKR96epkQzR8KIbGI7ng8kZabv+3JXkdcz1BPZS06ONfCQ2dsHi A2/TdtftgL0Bk1+q2bue37otzDiQjoxhquRlkbxa13/RHyQWvGZ4BUNtf0Lzoc7js1 U08rdf+6nbZ92uvPnv6L2r0Tu3qYXJUkptYzBHibZaU8NXpvKCm7h2h7gMSukEX1QA OiHtoKz1khxVw== 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 v1.3 01/19] mm/damon/core: introduce damon_probe->weight Date: Thu, 9 Jul 2026 17:23:27 -0700 Message-ID: <20260710002349.111414-2-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260710002349.111414-1-sj@kernel.org> References: <20260710002349.111414-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 507FB40004 X-Stat-Signature: axaswkjfo3nc3wt6bt7cw6bdjbg87c3i X-HE-Tag: 1783643039-159715 X-HE-Meta: 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 j+0BqPuo 5ar5XYvGqsCa0TD3hw/rKBKQuPeLErB/e2ftKFPHzM3ZVLZBDLoE1OtQvGrSc6AqLWzhsMgXJAwsgaGbLZsyz2YQcEEEseTg5wM+RFHokwlws+T79au/6c22ie5si5BXut1P2jrCKOlYWy2klzoy/d8t05bO0QvpUVh31qUyL2cN6yOL/lLRAfO2/3X4Z0WauzBxQ5g3wCOubd5x00CbX62joC0olKJHWyAwr9x+8jZfmFG9MXRO27h6ILD0nwjAbDjFU8FpcgJY2NSp8SYQHlgJrBA== 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 63f596957c1f1..d8251c83e6e55 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 11473aa1f70f4..327398fa4ee56 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; @@ -1658,6 +1659,7 @@ 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; @@ -1674,6 +1676,7 @@ 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