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 4FCFE4BD7A9 for ; Wed, 16 Sep 2026 22:49:01 +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=1789598946; cv=none; b=uCvY4OpVSQ0ygLI8nteZRGRUASCqFPiT0vELJZxuXBYK/t0u3tKfC557z2a1njurbHYlEWvFGUT4jkU4F7OKLPt6KeI7PX1Gt1Qd2wWZroGMIQ5BfoOaqAInDo5s3iUqnJ293u7EQfkfm7z/whCqY05JEcVGeipcF+n8hpISu4s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789598946; c=relaxed/simple; bh=UIBR1MZP84YaTi6eZBtRLr0Yz2eIErfP188O1Xf32xk=; h=Date:To:From:Subject:Message-Id; b=UTBGAbs8DQkUbHthrq4Hj/4MFCpy/g84kpmX1/PoQlVoERKbUQdQ+OoJAW77JSq1O2jigzWycCKuPGEzDQUGdtFE473PJWETNQjZKz/p6V/0i47O8O0GNsHRWX5gutS4y1eTXS50BhnSwHS0Tt3R+hFRlfOnPSwMFceTwnAGHhc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=1/2Pizxn; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="1/2Pizxn" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3BACB1F00893; Wed, 16 Sep 2026 22:48:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1789598939; bh=hU1yKmoSf7orYvLa/RwnPqqi0I47WW8YGsOdINgFlVQ=; h=Date:To:From:Subject; b=1/2PizxngTa4JIN7cLvyiVXC1OT79oemgTvaMGeVbHKEweajU4LzKDzvjetCRbzSf A8aBnHuiyDDSTCIoc0TIfFBE0tFH0PaDlU7+cVlnd2Xg063R5Hi3Vt/MKtAQQYx8vR Mln6uz4LgesTxNVlRzyphMLV3MN7s3E2vDyVvhuc= Date: Wed, 16 Sep 2026 15:48:58 -0700 To: mm-commits@vger.kernel.org,kas@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-collapse-name-the-per-table-scan-reset-for-what-it-resets.patch added to mm-unstable branch Message-Id: <20260916224859.3BACB1F00893@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: mm/collapse: name the per-table scan reset for what it resets has been added to the -mm mm-unstable branch. Its filename is mm-collapse-name-the-per-table-scan-reset-for-what-it-resets.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-collapse-name-the-per-table-scan-reset-for-what-it-resets.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via various branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there most days ------------------------------------------------------ From: "Kiryl Shutsemau (Meta)" Subject: mm/collapse: name the per-table scan reset for what it resets Date: Wed, 16 Sep 2026 10:31:34 +0100 collapse_control_init_scan() resets what one scan accumulates: the node load, the allocation nodemask and the eligible-PTE bitmap. It runs before every PTE table a scan is given, not once per control, so its name points at the wrong thing. Call it collapse_scan_reset(). Preparation for giving a control a real init and release, run once each for a whole series of scans. Two names a word apart would then stand for two different jobs. No functional change. Assisted-by: LLM Link: https://lore.kernel.org/20260916093145.4022188-8-kirill@shutemov.name Signed-off-by: Kiryl Shutsemau (Meta) Signed-off-by: Andrew Morton Reviewed-by: Zi Yan Reviewed-by: Baolin Wang Cc: Barry Song Cc: David Hildenbrand Cc: Dev Jain Cc: Jann Horn Cc: Lance Yang Cc: Liam R. Howlett Cc: Lorenzo Stoakes Cc: Ryan Roberts Cc: Vlastimil Babka --- mm/khugepaged.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/mm/khugepaged.c~mm-collapse-name-the-per-table-scan-reset-for-what-it-resets +++ a/mm/khugepaged.c @@ -550,7 +550,7 @@ void __khugepaged_exit(struct mm_struct } } -static void collapse_control_init_scan(struct collapse_control *cc) +static void collapse_scan_reset(struct collapse_control *cc) { memset(cc->node_load, 0, sizeof(cc->node_load)); nodes_clear(cc->alloc_nmask); @@ -1579,7 +1579,7 @@ static enum scan_result collapse_scan_pm goto out; } - collapse_control_init_scan(cc); + collapse_scan_reset(cc); enabled_orders = collapse_possible_orders(vma, vma->vm_flags, tva_flags); @@ -2650,7 +2650,7 @@ static enum scan_result collapse_scan_fi present = 0; swap = 0; - collapse_control_init_scan(cc); + collapse_scan_reset(cc); rcu_read_lock(); xas_for_each(&xas, folio, start + HPAGE_PMD_NR - 1) { if (xas_retry(&xas, folio)) _ Patches currently in -mm which might be from kas@kernel.org are mm-huge_memory-do-not-touch-frozen-folios-in-deferred_split_isolate.patch mm-huge_memory-dequeue-the-deferred-split-after-the-split-freeze.patch mm-huge_memory-add-folio_reset_partially_mapped.patch mm-khugepaged-drop-redundant-mm_struct-pin-in-madvise_collapse.patch mm-khugepaged-count-collapses-where-khugepaged-makes-them.patch mm-khugepaged-rename-mthp_present_ptes-bitmap-to-eligible_ptes.patch mm-collapse-add-collapseh-for-the-collapse-interface.patch mm-collapse-state-what-a-collapse-may-do-in-the-policy.patch mm-collapse-drop-the-collapse_possible-wrapper.patch mm-collapse-name-the-per-table-scan-reset-for-what-it-resets.patch mm-collapse-separate-scanning-a-pte-table-from-collapsing-it.patch mm-collapse-open-code-collapse_single_pmd-in-its-two-callers.patch mm-collapse-work-out-the-orders-a-vma-allows-once-per-vma.patch mm-collapse-declare-the-collapse-interface-in-collapseh.patch mm-collapse-implement-madv_collapse-in-madvisec.patch