From nobody Tue Apr 7 23:43:02 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 838A33C73D7 for ; Wed, 11 Mar 2026 10:19:45 +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=1773224386; cv=none; b=unMbL8n/LNMFgKZ4GaiIKqx0GIgtfvQPyRkP2vcZop7ubTNb5GiBn4XDfIj3EyJ8lv3KUbYNBGw71Nljh4KZmcddyfcDeAVL+LX3SfF1I87M99xBJK+2aK/c0u+gIc7+Wavrb5ngEwSltplTs3Ky+YtgNA/SGt51uQFRyDCnVes= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773224386; c=relaxed/simple; bh=lZahW99RTlxb5nSjc6Dzfk6SVjr8wXe8geyfqZrys/g=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=hNgy7CF+7JUe/yen+QzVRjghM2ilp6Rpw4d6rr9hiAcbrpgT9/Y4PrdCWfAbJXtSpC6taFXdhfn2Gs3+JkL+YHf39G+2ZhnuSZ7wvqH0IfrjHFozd3jVMR2k0TTbZrVB87rR/S/TyADJ3ObaS3dc3MwFhsTdtrNW0uUNGRByflU= 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=Ct00CbYK; 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="Ct00CbYK" 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=iXIH1tXdZIJ5fkYaX4jFP9QBJPuyNx5b18M8eLitWko=; b=Ct00CbYKQ4ArbbYHoJFb8srJY6 8uJg9eW8MaHNoZQGgyfvKTr/hxqtJ/MxcLk0/PhLqpS9kmIIcy7DCC4sfKbOtZqmCY+7EkaAeObJt eVrrOBb0DOhVhksSXK4XF7oPQJtpxoG9i6WL19X4oyK9Voz/hauRsuQGJuAcVkaiu96fzSRJncGFw RcLA73jaAMf5WcYYRqY5f+TfMyzCaRRs254uzTZ0AtOrdH6YuymdCP48C/YsAgfk/Pj1m0RSVTOYv LzKYkXpyeZt0CW5ViHic3zV3SuvvzSI9k5DxhqAHX0Hhxj6ZffxvjQW/bcEihYd1vUHTewH6JbwRl T+vS749A==; 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 1w0Ger-003hKV-Gw; Wed, 11 Mar 2026 10:19:17 +0000 From: Breno Leitao Date: Wed, 11 Mar 2026 03:17:47 -0700 Subject: [PATCH v6 1/4] 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: <20260311-thp_logs-v6-1-421e30d881e0@debian.org> References: <20260311-thp_logs-v6-0-421e30d881e0@debian.org> In-Reply-To: <20260311-thp_logs-v6-0-421e30d881e0@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=1398; i=leitao@debian.org; h=from:subject:message-id; bh=lZahW99RTlxb5nSjc6Dzfk6SVjr8wXe8geyfqZrys/g=; b=owEBbQKS/ZANAwAIATWjk5/8eHdtAcsmYgBpsUGYdXYLlTfdS24x4Ijnmy1lzO7mh4g8bO913 JPJ20/U5aaJAjMEAAEIAB0WIQSshTmm6PRnAspKQ5s1o5Of/Hh3bQUCabFBmAAKCRA1o5Of/Hh3 beMxEACJHeqxWGPfoHsKTtYydXn+xUc2IzPH9U0E7Coj9mxC1hXG0bAsEqptbp7IlygxSMfBZs5 cguRNroZvDK2zbBxYlxUmqkzX/dy8AKf1d6WGHB4OnXcam8+AS+TaQu2OfoF4SQuIOrtf9GGFvV 974GdlxU0PhmTTJP/g0ZtxGpq8Fp1Gn+UjVpeEMBT8JOsmh2Ib0uLSstDextCYqMJ28XV/z4Jfr za0Q4IiqGVo/RtiWcmOjJWwViSuFaMreQWTnRUDTUFwGhKfg20x0z4z0kbk0mdJoIdyd7peoUez guRmThRVtWGi6EV0MyufH3/gzObG5/cgbCkUMwpG/gXAnkOy3aScRzxRVFH5Ux8On0Y5fY/M3ns +0CVZtyKZaV4JSFxurxFdEBaG1kih2lSkmFm9td2o0R6iJwZ9Jd7dWve7AaMk2MhY6WUGos2zFW NzxNH0jP4tm7R9rk70/qKfaGuZo7Bj95aVIb3C6o42OEc4Z4PRPaxCwYstlM+52nvL4b6PjuYQV JGDNQIVoL0YBYLQnSRjUfE52VnbRveYlD89Zqm//G0eyS+1Hopj5t9YfLLdGF9vtfj0koR50xqW fngb8dJmcJF0evXumurpgMt4A7yDR2QoJ//AHD8G9CKzAPIFl2F9H4S1dM7tW77d6tmYnHiNDzd xQcXTu8CpjIDwSA== 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 mm/internal.h. This allows callers that change THP settings to recalculate watermarks without going through start_stop_khugepaged(). Suggested-by: Lorenzo Stoakes (Oracle) Reviewed-by: Lorenzo Stoakes (Oracle) Acked-by: David Hildenbrand (Arm) Reviewed-by: Zi Yan Signed-off-by: Breno Leitao --- mm/internal.h | 5 +++++ mm/khugepaged.c | 2 +- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/mm/internal.h b/mm/internal.h index cb0af847d7d99..7bd768e367793 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -623,6 +623,11 @@ int user_proactive_reclaim(char *buf, */ pmd_t *mm_find_pmd(struct mm_struct *mm, unsigned long address); =20 +/* + * in mm/khugepaged.c + */ +void set_recommended_min_free_kbytes(void); + /* * in mm/page_alloc.c */ 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 2.52.0