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b=M2sUUfq0G7lu48A89v/C5h4pW3ee3Phxf40ZnZ2L4mSF1bR9j5witgW4MHnbMTlME 8XwGfeZHD88nz6OFMtrnTLbFC/BMfpOziO11doGr+FLSt0+Il9v5newdhiiSpR+jfH DOzRqW2OVt8hNQK+ZbyvbccaPMMjIqBnvvgJSiroNWORk58GG57sVb54Agu88kXamb LlC/qUuTiBuvvFXpdcpfuABBx1loprpGY1hDiqiNRiIXOUx1/iRXw4IrQ26htunVD3 1k6uYjkOljbUzBWYfK/icxxebvbNr1wlLrQ1NSJwV47P0WeyFqQ1rJsyLmZwffyvsl eaqwwSNXsG5bg== 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 v1.2 01/19] mm/damon/core: introduce damon_probe->weight Date: Thu, 9 Jul 2026 07:05:39 -0700 Message-ID: <20260709140600.90950-2-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260709140600.90950-1-sj@kernel.org> References: <20260709140600.90950-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 6F37D18000D X-Stat-Signature: 7sa18tfwhsbeuco7wobnwc4jmc6atken X-HE-Tag: 1783605965-772255 X-HE-Meta: U2FsdGVkX1+k9oQme2eUXlb8WR8Rz+4akFQiAvSaQGuoHRSiXujtC0MitxiFYHD5I/11xJBJ5I/BJndZdcINy9vXzFAzbbli+tqU0ZeY2E3QeUaY2bJ5lsRFx1n2ftDrwAoIUp3sA3eMXOUArYmGsyezqV2vx0pzAzGvz2Cli+4n/Qht4M/DVyFu4cCmtJSHuWKPSW2ch0MIedq6sHPWQluyYBaUFyOQapnRZSVg6porGGAhNOHburC+87oX3PKs1d0dnTUjrzvAJloEUqLhjLTSXhusSQh3LcJi7qcLCxj7+jT0XzEB0tDewLNXJUxtZtCeoYSxETVeJZdak2lpYp4KIuQOs+8rD2Sdin6ylvxYSthz74nQ4dFg1pfL8MolAIkpnoNyI4ZVgYm+KGiENZu01U0NzTxg6h3CSG9xI0ArLREAzMdpvhenZBJtywu5ik0l/p443IgUkBr8SIWeq3JRul62znVXjGEQo5iXaUcNsxhEZSQqdQvr5M2WbDtWkUd5F4pRdYROb8Nc9icMbQxhCXPzcXCaNOVNSL+80F4bGDcpzReMkfLkfdW6g9PrS1WaypgIP0STNEXYCb8wge2E1f7Sfmsea7tPSgUtHf2hYSoEnFZHNrOgckQpf8w6jzSZdQpbYrVTkKMmNl+tftNHeo7odUaDxCixL4i5hEebjpcrHb5CcNcUAmnOKYNp3XMrpe3vPbQ1hzqm+HUJ3texvxMTn5p8LfMRwFdVTu2NNEM+i0WHH21ngcl59mrfhrExBIeq0A/qzfiRE2BmnLqhpNPXHuzFb47M7N/iSfA+BEVtaMIAUZIV+gV5SkFeEvNOCM4yL8SLh5BFhMVyO7cEGLxxs4GdnFO8jfdgoPqITWAaqsHw6PDBHtPMk96otH/loN3UxKtzG/Z+RKcHPHIsN3ovQCZPplvXcz6yD183b6V2YVC+V2AEV1PxgKVMCrsiCPN7U076y5G3FH9 9y02/Wzz FHsD2coUXb60RLOaYU7kejUf6niXHeig3E/yDCUKHWKNAlw5WKtAwVo6LHukTqcBX0fwxDv8LQuAKrx0staFZ/Sm7Spc5nbtGEaTWcg0jDb52opWPIvBEylBdbFTiy/BQWkNXJvCFo64FBC1O2iNCkp5eiyOyan8hv0BVyh0suMdz42XT1lyeGWoGCXv+e60n+oRVnSIaXJhNK7aNtnpmcRQIkJduryAkUmoOKV7NzQUTm4eTLeClt8phU+ww4cUB1BnSSErYNCHqdN6O32U6xQ2e6A== 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