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 5E6B7330315; Sat, 20 Jun 2026 17:23:04 +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=1781976189; cv=none; b=LhPf4SsBIJ1wFbpNNkWtDkuGneWRbsK5urrc49m8LpKR9yYvKMsUZWYEzLy7VmWti5wXw9siuOJxquVr9Mk6JyFr3rA1zjOmx0tObe0kv/sFjo6eSlRZan+Wg21FgVkn1XojAiG5mSJAPOXdHGVRPuibVvAgHrMg9OyZfSPWPwI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781976189; c=relaxed/simple; bh=iRVqIdXQ6Xb8mPVE3kyAPizBU3MwK0e2TtIbCVQ9Fus=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=IXqTb5KnVFZmQB5WlQ/kX4KmN53DHoTL6VkeMmsM0Ad7+Y1kWyT6KaPq8OE/XMWLZkp1YZadF8TrKwv5YIJJY8LJLP6qC6VTumPzARFZCeNM7krPeuXTTWuWNej16A9amIXDKBSGMVYRZaloTL8uZbrw7XBbTDvFDAQRbTEt0mw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dJmCwMaY; 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="dJmCwMaY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 869A41F00A3F; Sat, 20 Jun 2026 17:23:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781976184; bh=SYAGsaO01kiQmgR5RMp78XMLHevy+rCRbusd/Bmkavc=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=dJmCwMaYu4CRKg7QWxPIpjdBYvx4AU6uOKZoiMzlEyROhtUlBopFwgPzr3c02XVcT eVoZixq74e1u4fR+Q3Hz6qz0cCkMRuCVaDqEHRuK5gW0XNtpyPv+FOOqJ0uQdITW13 JsTYolmli/dYQ+rO/3jw5M8P2cx1fuep0FvKKMIIX/CCIuWuOVik6nfV5nmQep4jxx Gc3Bm9owJcUc71xB9v0WQEp8/960veQX93mEYxKL/vqeGoWGLgwYyAa9EZtwbjMSxM CMZgdnD5cxtULPztdmjhonngthhxDwgrcxQ/V+hcWiBDmmGgBoHf5kaOwUz03bVn0P 7CdE7Hgd49Qwg== From: SeongJae Park To: Cc: SeongJae Park , Andrew Morton , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v1.1 08/13] mm/damon/core: remove damon_verify_merge_regions_of() Date: Sat, 20 Jun 2026 10:22:38 -0700 Message-ID: <20260620172244.90953-9-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260620172244.90953-1-sj@kernel.org> References: <20260620172244.90953-1-sj@kernel.org> Precedence: bulk X-Mailing-List: damon@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit damon_verify_merge_regions_of() is only for nr_accesses_bp validation. But nr_accesses_bp is no more being used for a real purpose. Remove the validation. Signed-off-by: SeongJae Park --- mm/damon/core.c | 15 --------------- 1 file changed, 15 deletions(-) diff --git a/mm/damon/core.c b/mm/damon/core.c index 84d21d21ed6c9..6db157ee25129 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -3109,20 +3109,6 @@ static void damon_merge_two_regions(struct damon_target *t, damon_destroy_region(r, t); } -#ifdef CONFIG_DAMON_DEBUG_SANITY -static void damon_verify_merge_regions_of(struct damon_region *r) -{ - WARN_ONCE(r->nr_accesses != r->nr_accesses_bp / 10000, - "nr_accesses (%u) != nr_accesses_bp (%u)\n", - r->nr_accesses, r->nr_accesses_bp); -} -#else -static void damon_verify_merge_regions_of(struct damon_region *r) -{ -} -#endif - - /* * Merge adjacent regions having similar access frequencies * @@ -3136,7 +3122,6 @@ static void damon_merge_regions_of(struct damon_target *t, unsigned int thres, struct damon_region *r, *prev = NULL, *next; damon_for_each_region_safe(r, next, t) { - damon_verify_merge_regions_of(r); if (abs(r->nr_accesses - r->last_nr_accesses) > thres) r->age = 0; else if ((r->nr_accesses == 0) != (r->last_nr_accesses == 0)) -- 2.47.3