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 9A4283A1E80; Sun, 5 Jul 2026 20:57:55 +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=1783285076; cv=none; b=mtlF75YevFljtFytywABnau1OGaOkYr/FPyR0iBIlE/M9JRAVoW2d1vV1PqXlGbphpOY09/4K0p3ZdkymeFpGPWhcyo4kFCkRnsMsaINjIzv9H2WEx7GTPOQPasnINFnxP441IGLGSUFUOlPEHwE2mg3t5ANmgCo6mgDEtiTrvc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783285076; c=relaxed/simple; bh=cOO8k05qs8K2ptOfg1ImvOrODYynHhEQW31RNZPhIV8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=NNeBeNEGkhNVzrr3Q7Y47VrFWDVcET7s1tG03HlWyS3h3vTauD1O54i2AHUZm0HeEujrF5BU/q/hQLds9u8q2PtAE3bfDBKy4jo3/1iw6vt/nGeqZsr8QdPKXvuiC9fQS2n6WhJheWjnNOe3WNkvBI5AViRc7V74ovT8V+8NiA0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=d5ZpNRl6; 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="d5ZpNRl6" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4819D1F00A3D; Sun, 5 Jul 2026 20:57:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783285075; bh=HWM9ulbAfG9bosKr1Xo0BbZMoQtsvPUcnEqaGbAY52s=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=d5ZpNRl6fvmW83KKSXyUuTyE87rA/bXRA4wLjovZyHCnAYMuO8wFQksZ25hz4kabW JH434phDAKXBga/SdAIN8rSmdTThwWYr3eLBKC7sef82/z3T50sE+puhGzbSemQwHx sp4drReeE2DtOSUY3i5tDnSg79rzuD9TQyFiVJo0tmFzUWYs/OB4Z02B5ZujzRfT3P jaz+8RZNTa80vqKB29hhVyF0wB8CYT/x9b81s+ZHtWOWB+lOt5B4GZMsng6ueqker/ wdg9HMPBBJC0es0q0Cl8cSxwt9+7nSjRgH2+znPUByyINF+3gPCFpp+w3kjZww82An dpdymwrCpN1cg== 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 06/16] mm/damon/paddr: respect return_max_wsum Date: Sun, 5 Jul 2026 13:57:28 -0700 Message-ID: <20260705205743.98656-7-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260705205743.98656-1-sj@kernel.org> References: <20260705205743.98656-1-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