From nobody Wed Apr 8 04:46:31 2026 Received: from stravinsky.debian.org (stravinsky.debian.org [82.195.75.108]) (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 DE0173D812A for ; Tue, 10 Mar 2026 17:58:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=82.195.75.108 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773165512; cv=none; b=TK9yIEwqd7ZSnN1fOR59DbHwXkndxBMDX9EkdnWgpYWZ6orxSFJnAvh557Vpj+9pALlDFGmzVbErcJUc8AWWdwZ4aXx1f0GZjr1usWTS9FvhnFnUUTu6qHxDX8BGfi8EcgaGu55PoomcHmhmxJrc+CDgTKTB2b6+EmtgBWyDDbc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773165512; c=relaxed/simple; bh=sxlnEBDqD6VQeD4cL31JhJmkqEbifkft9mLh3RNg8k0=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=g491OYdp41BeXNB4nwPmF+XvUkKiaYjOnpVk/0V8V5l9UkUJJSuqHJjSwlRq+0UpgY+BezCgRnXRqh5aZQvju7CUBNICvqATWJWQzlidjhso50PAmwxokj/Ng+x4y0NelbhG+CMLpWlhXMlU9Qd9qMqHwSjuFXxRdZyW/5MKGvQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=debian.org; spf=none smtp.mailfrom=debian.org; dkim=pass (2048-bit key) header.d=debian.org header.i=@debian.org header.b=SypbMMah; arc=none smtp.client-ip=82.195.75.108 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=debian.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=debian.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=debian.org header.i=@debian.org header.b="SypbMMah" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=debian.org; s=smtpauto.stravinsky; h=X-Debian-User:Cc:To:In-Reply-To:References: Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description; bh=JH1sSMbaLUKQaR2U26oi38QcPA7kc27iYlwkovTchi0=; b=SypbMMahWgaPD75kxHLjIX8ci7 d2LjiyIDOJ+6eCWDEaECO5Jb7xdW1PAMwU1p/2TfrYW/UBcNCbJC03H7pG6BNDHc23zsLtYI5fOJz CCWKFUmG9AfT18DmZJREXZZ90voyrAGWZ3bNqoInvNGSv3+jmlLHl86NiQM4lZfWb4UBJGZzGfSgK KZNba0dAXYzRWQgwcXvvc6scv856hV4qt8+Q8J2bO9ojclbbKgIwXMGX7jIBl8godrSljZ2kmMjvB ZSwoH1LNRL5TGdDLLsGsl14UV6NW4GnBPEjce+2bZ7N6PKbWidLgouStNagzSRln3zwslCJffbahB fKJq+PwQ==; Received: from authenticated user by stravinsky.debian.org with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.94.2) (envelope-from ) id 1w01LV-003AaG-Oa; Tue, 10 Mar 2026 17:58:18 +0000 From: Breno Leitao Date: Tue, 10 Mar 2026 10:57:10 -0700 Subject: [PATCH v5 4/4] mm: ratelimit min_free_kbytes adjustment messages Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260310-thp_logs-v5-4-686099175bf6@debian.org> References: <20260310-thp_logs-v5-0-686099175bf6@debian.org> In-Reply-To: <20260310-thp_logs-v5-0-686099175bf6@debian.org> To: Andrew Morton , David Hildenbrand , Lorenzo Stoakes , Zi Yan , Baolin Wang , "Liam R. Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Vlastimil Babka , Suren Baghdasaryan , Michal Hocko , Brendan Jackman , Johannes Weiner , Mike Rapoport Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, usamaarif642@gmail.com, kas@kernel.org, kernel-team@meta.com, "Lorenzo Stoakes (Oracle)" , Breno Leitao X-Mailer: b4 0.15-dev-363b9 X-Developer-Signature: v=1; a=openpgp-sha256; l=2011; i=leitao@debian.org; h=from:subject:message-id; bh=sxlnEBDqD6VQeD4cL31JhJmkqEbifkft9mLh3RNg8k0=; b=owEBbQKS/ZANAwAIATWjk5/8eHdtAcsmYgBpsFubDKOpPMxvzzpIp0J36faXVRPCTVU9M4var adKffMbgAKJAjMEAAEIAB0WIQSshTmm6PRnAspKQ5s1o5Of/Hh3bQUCabBbmwAKCRA1o5Of/Hh3 bXV3D/9nAY2XOL03ruLBHgzp6klnCndqIoao42Xif994eIwg43qlkJbkAW+lIg2NzU4e2+EWyit wip+POZAZbWl3ABecbIgGYcwL6MPOhwOwaSWfKgAy+Vn5tOPs8CwiFt1WFTtuNA63/tLIu5uRM7 1kOevZZ5LyJM7thCB3mvjxPm/Qc83sBJzpGx0AJk/l7Fncs6p5xwiughbE9LqUo339vkF1MUnHu 1wlScHaOvYtKmLH3Oj+9uj3/YeTNsBBSbj5RVqNURmvpHHcAfpdFoVMksoOOUDFzkEPz5kDQdOI LtAjgkPJh8oN9MTkrqkywjxkBVQNBUrQo9SH/q3bmyzW64TS+9ty1GSsxov9sVdAsUn8guMRrDy hU7L9PT7woGTR0/GuH/Ugg+ZP6AHM+4r0D5HEhkMj4nE+He2pbYOK1yRpLu7ZYNexnFT3zCRE4d NU00Oi2ajRjvzXCZ94Wa6ZDTrcKWNKluIuLiFTntc/nuahW/lu53D7SwPNM3JCZAruMBV3KCo2D /XAwrnr2rpILc7Udr+hV7xmGwol4DS6dm6hMpB3CgQOITomUzZ+wA59oDO7kRjLTEYLjypiwbza mLHfNTh9goK7a1Ot2ui2LOAreDqFctxaesxEtnbyfP32uYPF70lKKVXgjwVIkJYJNZ4/Vc/Od9g SFd1PZcWpkjmfNQ== X-Developer-Key: i=leitao@debian.org; a=openpgp; fpr=AC8539A6E8F46702CA4A439B35A3939FFC78776D X-Debian-User: leitao The "raising min_free_kbytes" pr_info message in set_recommended_min_free_kbytes() and the "min_free_kbytes is not updated to" pr_warn in calculate_min_free_kbytes() can spam the kernel log when called repeatedly. Switch the pr_info in set_recommended_min_free_kbytes() and the pr_warn in calculate_min_free_kbytes() to their _ratelimited variants to prevent the log spam for this message. Reviewed-by: Lorenzo Stoakes (Oracle) Acked-by: David Hildenbrand (Arm) Reviewed-by: Baolin Wang Signed-off-by: Breno Leitao Acked-by: Zi Yan min_free_kbytes) { if (user_min_free_kbytes >=3D 0) - pr_info("raising min_free_kbytes from %d to %lu to help transparent hug= epage allocations\n", - min_free_kbytes, recommended_min); + pr_info_ratelimited("raising min_free_kbytes from %d to %lu to help tra= nsparent hugepage allocations\n", + min_free_kbytes, recommended_min); =20 min_free_kbytes =3D recommended_min; } diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 2d4b6f1a554ed..c840c886807bf 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -6553,8 +6553,8 @@ void calculate_min_free_kbytes(void) if (new_min_free_kbytes > user_min_free_kbytes) min_free_kbytes =3D clamp(new_min_free_kbytes, 128, 262144); else - pr_warn("min_free_kbytes is not updated to %d because user defined value= %d is preferred\n", - new_min_free_kbytes, user_min_free_kbytes); + pr_warn_ratelimited("min_free_kbytes is not updated to %d because user d= efined value %d is preferred\n", + new_min_free_kbytes, user_min_free_kbytes); =20 } =20 --=20 2.52.0