From nobody Thu Apr 9 23:26:10 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 0A9B439FCC2 for ; Thu, 5 Mar 2026 14:05:42 +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=1772719544; cv=none; b=FRwslz2G9y11MvodUEk6+6a1qTftfCZAigMcLZnyQz2DkxeycltRCw14gb6/VdbsJmtIOZVp03gwO3hVpz+XAmUMPI89qAKNn+rKhEPbtedM2eQBpei8KuC/ykAHwEVkRj5UVxWpF0imEuH5pPCQ4uwo/+LQgsqnc6X+0cOh8iI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772719544; c=relaxed/simple; bh=EG6CHi+pTEhduAjBnWyYsnqK4E7lPm6jKVUTFHdusKg=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=b/LYChGYPSS9K+4vygTM50w8jxZTaNzABWI65x+u9MM7jMMrKrQSTOuGAnkvBCLq2kDWiOIkl4JBZR0TpfL6l2NcLaKR5pGz+0phyzqO9Ks+bSO/1I/xNzQWqXRx/CNdthlj+XPBWCYSKE3M/6H34e+nqtWPkPou56s+YRbZvOI= 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=QuKWDsVD; 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="QuKWDsVD" 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=OUBy+8sEPr5bdVEJymY5zJ8s1k1i9PEe1Y7EMp5ZRRA=; b=QuKWDsVDQz1shNyQeTGgni08ME 2elu9jXTJamicv8b8VQSFT+5vNVjpBataWcO+4O1ZZKvdZuJf8/1N20rzDu5aTzRXdfj1zmG6KO9Y 741KivVh0/g4zQ8/dNYDBoEIScuk/0mOjZIKFW43tEJL4xbUMmfjXiCgryCMUd2DnvkyuapFuan7i ix7tgnLQp1mb4e+2ThJqwD2DS2EXWhXAEXoKynpwZ2JNlwEnsAcCYoR8SKHwPDS4FaZCBc05YFVfF 1Cee2xFpbg0U8wFXBcJmVwZ9S575VTE0mvQEPRJV49pWdORyi0ukS9CzszSSKvQW/OcvCOsGCZ+zt uMWA0vwg==; 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 1vy9KM-00GmPB-Kq; Thu, 05 Mar 2026 14:05:22 +0000 From: Breno Leitao Date: Thu, 05 Mar 2026 06:04:53 -0800 Subject: [PATCH v2 1/3] mm: khugepaged: export set_recommended_min_free_kbytes() 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: <20260305-thp_logs-v2-1-96b3ad795894@debian.org> References: <20260305-thp_logs-v2-0-96b3ad795894@debian.org> In-Reply-To: <20260305-thp_logs-v2-0-96b3ad795894@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 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=1489; i=leitao@debian.org; h=from:subject:message-id; bh=EG6CHi+pTEhduAjBnWyYsnqK4E7lPm6jKVUTFHdusKg=; b=owEBbQKS/ZANAwAIATWjk5/8eHdtAcsmYgBpqY2VjAIvXSLlnWrKVfNCZo+uzQhZEW+Il7PQ1 UZ7i6s1niWJAjMEAAEIAB0WIQSshTmm6PRnAspKQ5s1o5Of/Hh3bQUCaamNlQAKCRA1o5Of/Hh3 bZFRD/4zhlJBeP5EInd/GLNKjV8cfjlhT8PyECvyRyoA55Wl3Z8luO/HaJrgGVq/Yd2L21ra3TC LNCSCp5SxnkyxIFZ4PEthgv+ZOhXDmBph6yZACSx+OihrFWzEmhQY8O9qaQK9oo9mDtRmnYOHKf NJiGL5H7dGueNVy4vFFBT0hMbmHnHxkBzJwLV66JAZjB1LWPCLE3f/U7mm04C6kFJ/lTtaPlkah TkQ9G1re0o2C45UphPJqFyUpviadH7iG3tkLSW+cWDKkGZziHXzmw/oAoR3LVdZ/mC5SKx1ukH3 xsg7eSGPZVDZYA/WYJuJyDjCj7XESMg2YgMNQJaKUFjj1dvHfOieL6njMb6sDafl+uob2PzgJwV fzhJwXkQvxq5UFUoXhZSkRdmdaGZr+Z4WcLaVLmZqvEtmzhAnqJcdzrmrbLmzPWmU2gWfGAKfku RShrQTdRdLggi5NIWVgtGcd69At/IbA4J1nWLLpGqwpmXGHyfXICh69KNSXaIm/Dzh2psjLp/qa mZRNY5NgFu94NGiaDm1ygHhmDcikvwTPEbr9640ZM4AatLyGceNA1H/lkMW3+PJdsFK52GJ8TjT iAeedAOfEI1NmiwmGLHnwzFNfGvJ6+gqVpOkzkPRiAUdZWWF7aJhrgph3wqcxD6nGuLPJeXY5Rh KqAYJmlFqjgNF1g== X-Developer-Key: i=leitao@debian.org; a=openpgp; fpr=AC8539A6E8F46702CA4A439B35A3939FFC78776D X-Debian-User: leitao Make set_recommended_min_free_kbytes() callable from outside khugepaged.c by removing the static qualifier and adding a declaration in include/linux/khugepaged.h. This allows callers that change THP settings to recalculate watermarks without going through start_stop_khugepaged(). Suggested-by: Lorenzo Stoakes (Oracle) Signed-off-by: Breno Leitao Reviewed-by: Lorenzo Stoakes (Oracle) --- include/linux/khugepaged.h | 1 + mm/khugepaged.c | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/include/linux/khugepaged.h b/include/linux/khugepaged.h index d7a9053ff4fed..76252865fca4b 100644 --- a/include/linux/khugepaged.h +++ b/include/linux/khugepaged.h @@ -16,6 +16,7 @@ extern void __khugepaged_exit(struct mm_struct *mm); extern void khugepaged_enter_vma(struct vm_area_struct *vma, vm_flags_t vm_flags); extern void khugepaged_min_free_kbytes_update(void); +extern void set_recommended_min_free_kbytes(void); extern bool current_is_khugepaged(void); void collapse_pte_mapped_thp(struct mm_struct *mm, unsigned long addr, bool install_pmd); diff --git a/mm/khugepaged.c b/mm/khugepaged.c index 1dd3cfca610db..56a41c21b44c9 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -2630,7 +2630,7 @@ static int khugepaged(void *none) return 0; } =20 -static void set_recommended_min_free_kbytes(void) +void set_recommended_min_free_kbytes(void) { struct zone *zone; int nr_zones =3D 0; --=20 2.47.3