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b=I0hmnbHBPEHzGx8A+oPtTkkPBrTG39LRjcnvRUfEvoczdjBCHtnSxb/6R9S5LQH6+ 9JXrO1XzAr2ACSM5XaiQ2gc9bJej1WSruLpboI6WKxsA63rxIaMrkX7xyHIOkQLP39 ga7bwUHEfnbiIfQTfNUCEJ5hKEE7kkBVi9Mu6+Uab/zsQsOG+lbMQU/ZUKPVhZhgYB aPSpFp/vLdAM8RI0oAVWcyzGWTlggcpe3VSzFeAs9QQQq30OpiOfIAkNDyvHDj2h5T V1JwxwdGEKZ+SHw0LyDiH2OMa3aGhFr2x58orb5NSnh7cM9ZYsq6xQ9yVJJnciiLsU vWiauJWMjCRGg== 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 06/19] mm/damon/paddr: respect return_max_wsum Date: Thu, 9 Jul 2026 17:23:32 -0700 Message-ID: <20260710002349.111414-7-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: rspam05 X-Rspamd-Queue-Id: 6A79FA0002 X-Stat-Signature: dy4418e58sz9ngw3k11a41c5osciki9a X-HE-Tag: 1783643041-103186 X-HE-Meta: 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 vMWUOBVp h/VIMuDPvVI4eTSsJS0zPOmCJ5YtEH/al7CJ7xb1hDggU7ev5lDHDe01PRsb1oYm7x4ck0qTuWNtLehwB18TZsKMimNYS1KudQHpSLQLZ1UpDFSqIX/6NO1wTlEj0p4nReDTlQTShfC4MZbqLZkFda/1UzuVbqFqCMv+9XG0/hOtVBENpONeJQLc4wN/t4k3PFK0J5tbEY8aIIa7Fo57tiD1z9imdqBGLOVIIF/x3tjwc9E5vx8qEUV007qPEGAdlzk5IBlAN9Ai+nkn8IfD8ofB9tw== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: apply_probes() ops implementation in DAMON_PADDR is ignoring return_max_wsum. Respect it. Signed-off-by: SJ Park --- mm/damon/paddr.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c index 3eba3564a31fc..b85f88a7a38f4 100644 --- a/mm/damon/paddr.c +++ b/mm/damon/paddr.c @@ -172,6 +172,7 @@ static unsigned int damon_pa_apply_probes(struct damon_ctx *ctx, struct damon_target *t; struct damon_region *r; struct damon_probe *p; + unsigned int max_wsum = 0; damon_for_each_target(t, ctx) { damon_for_each_region(r, t) { @@ -182,7 +183,6 @@ static unsigned int damon_pa_apply_probes(struct damon_ctx *ctx, if (set_samples) r->sampling_addr = damon_rand(ctx, r->ar.start, r->ar.end); - pa = damon_pa_phys_addr(r->sampling_addr, ctx->addr_unit); folio = damon_get_folio(PHYS_PFN(pa)); @@ -193,9 +193,12 @@ static unsigned int damon_pa_apply_probes(struct damon_ctx *ctx, } if (folio) folio_put(folio); + if (return_max_wsum) + max_wsum = max(damon_probe_hits_wsum(r, false, + ctx), max_wsum); } } - return 0; + return max_wsum; } /* -- 2.47.3