From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1A44FC43334 for ; Thu, 16 Jun 2022 18:23:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235271AbiFPSXa (ORCPT ); Thu, 16 Jun 2022 14:23:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53768 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1377540AbiFPSXX (ORCPT ); Thu, 16 Jun 2022 14:23:23 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DD73043396 for ; Thu, 16 Jun 2022 11:23:22 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 609D0B82276 for ; Thu, 16 Jun 2022 18:23:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DD87EC34114; Thu, 16 Jun 2022 18:23:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1655403800; bh=g2ZOcIXO9HLJNCUvjTuMA+diuFCS7wyYiR7CbFCBdlQ=; h=Date:To:From:Subject:From; b=z55pZkUVkzwhEdxBf2KWyVD4d7qKn5b7uCO/TLoPQn6G1lvKRTlwhLnHqzitYGy+q 5McfY5sUnpKeZBqalWut7XRyBeNwdQwivlRu5V2lXuAipYpLQyH40G0nOCLX76iDdQ 2Gn6XBF2Fzwxep1SOtD4eqfhCKiL3FO1r/5tK/YI= Date: Thu, 16 Jun 2022 11:23:19 -0700 To: mm-commits@vger.kernel.org, zokeefe@google.com, willy@infradead.org, vbabka@suse.cz, linmiaohe@huawei.com, kirill.shutemov@linux.intel.com, shy828301@gmail.com, akpm@linux-foundation.org From: Andrew Morton Subject: + doc-proc-fix-the-description-to-thpeligible.patch added to mm-unstable branch Message-Id: <20220616182319.DD87EC34114@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: doc: proc: fix the description to THPeligible has been added to the -mm mm-unstable branch. Its filename is doc-proc-fix-the-description-to-thpeligible.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/doc-proc-fix-the-description-to-thpeligible.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 the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Yang Shi Subject: doc: proc: fix the description to THPeligible Date: Thu, 16 Jun 2022 10:48:40 -0700 The THPeligible bit shows 1 if and only if the VMA is eligible for allocating THP and the THP is also PMD mappable. Some misaligned file VMAs may be eligible for allocating THP but the THP can't be mapped by PMD. Make this more explictly to avoid ambiguity. Link: https://lkml.kernel.org/r/20220616174840.1202070-8-shy828301@gmail.com Signed-off-by: Yang Shi Reviewed-by: Zach O'Keefe Cc: Kirill A. Shutemov Cc: Matthew Wilcox Cc: Miaohe Lin Cc: Vlastimil Babka Signed-off-by: Andrew Morton --- Documentation/filesystems/proc.rst | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/Documentation/filesystems/proc.rst~doc-proc-fix-the-description-to-thpeligible +++ a/Documentation/filesystems/proc.rst @@ -514,8 +514,10 @@ replaced by copy-on-write) part of the u "SwapPss" shows proportional swap share of this mapping. Unlike "Swap", this does not take into account swapped out page of underlying shmem objects. "Locked" indicates whether the mapping is locked in memory or not. + "THPeligible" indicates whether the mapping is eligible for allocating THP -pages - 1 if true, 0 otherwise. It just shows the current status. +pages as well as the THP is PMD mappable or not - 1 if true, 0 otherwise. +It just shows the current status. "VmFlags" field deserves a separate description. This member represents the kernel flags associated with the particular virtual memory area in two letter _ Patches currently in -mm which might be from shy828301@gmail.com are mm-rmap-use-the-correct-parameter-name-for-define_page_vma_walk.patch mm-pvmw-check-possible-huge-pmd-map-by-transhuge_vma_suitable.patch mm-khugepaged-check-thp-flag-in-hugepage_vma_check.patch mm-thp-consolidate-vma-size-check-to-transhuge_vma_suitable.patch mm-khugepaged-better-comments-for-anon-vma-check-in-hugepage_vma_revalidate.patch mm-thp-kill-transparent_hugepage_active.patch mm-thp-kill-__transhuge_page_enabled.patch mm-khugepaged-reorg-some-khugepaged-helpers.patch doc-proc-fix-the-description-to-thpeligible.patch