From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CBEED1DA60D; Fri, 10 Jul 2026 00:24:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783643041; cv=none; b=gKMQOOMFFu8xEM3FdrJkZEXMjUOwFes+UdngmFnWzDS34n4U0bQF9JELzD5HZygz4lOWgR+BNSS0qczJInUz4EurhYA8VmlOyGtCV9K6zxRAEbURq1nlby96ng2FlcprH0E+q3xlDsRIgCf9px9wdEpK6Qc6YlSoMtw7PaMkK1E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783643041; c=relaxed/simple; bh=cOO8k05qs8K2ptOfg1ImvOrODYynHhEQW31RNZPhIV8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=YLBlk+0507pO1piuR4Doo5LqAAvA+79RJP2Ps9ZMDP3fDVtMOCjYumDSPZR0OSulROrS6C+rvtWzZ3iDXATpjHjxWMeIItcvbBOaDZLf5qLHTJatCfzXnWgvq+Hol+n2fF4+ilIv76nzXoNU9fv/iqd7ORwhiL/XIycYjDzcaWs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=I0hmnbHB; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="I0hmnbHB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 872A71F00A3F; Fri, 10 Jul 2026 00:24:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783643040; bh=HWM9ulbAfG9bosKr1Xo0BbZMoQtsvPUcnEqaGbAY52s=; h=From:To:Cc:Subject:Date:In-Reply-To:References; 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> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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