linux-kernel - [PATCH V2 0/5] mm/khugepaged: cleanups and scan limit fix

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Message-ID: <20251224111351.41042-4-shivankg@amd.com>
Date: Wed, 24 Dec 2025 11:13:49 +0000
From: Shivank Garg <shivankg@....com>
To: Andrew Morton <akpm@...ux-foundation.org>, David Hildenbrand
	<david@...nel.org>, Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
CC: Zi Yan <ziy@...dia.com>, Baolin Wang <baolin.wang@...ux.alibaba.com>,
	"Liam R . Howlett" <Liam.Howlett@...cle.com>, Nico Pache <npache@...hat.com>,
	Ryan Roberts <ryan.roberts@....com>, Dev Jain <dev.jain@....com>, Barry Song
	<baohua@...nel.org>, Lance Yang <lance.yang@...ux.dev>, <linux-mm@...ck.org>,
	<linux-kernel@...r.kernel.org>, <shivankg@....com>
Subject: [PATCH V2 0/5] mm/khugepaged: cleanups and scan limit fix 

This series contains several cleanups for mm/khugepaged.c to improve code
readability and type safety, and one functional fix to ensure
khugepaged_scan_mm_slot() correctly accounts for small VMAs towards
scan limit.

Thanks,

v2:
- Added a fix for small VMAs not being counted in the scan limit (Wei)
- Updated 'progress' to 'unsigned int' to match types
- Update return types of internal functions to use enum scan_result (Zi)
- Add void wrapper collapse_pte_mapped_thp() for external callers to avoid
  exposing internal enum (David)

v1:
https://lore.kernel.org/linux-mm/20251216111139.95438-2-shivankg@amd.com

Shivank Garg (5):
  mm/khugepaged: remove unnecessary goto 'skip' label
  mm/khugepaged: count small VMAs towards scan limit
  mm/khugepaged: change collapse_pte_mapped_thp() to return void
  mm/khugepaged: use enum scan_result for result variables and return
    types
  mm/khugepaged: make khugepaged_collapse_control static

 include/linux/khugepaged.h |   9 +--
 mm/khugepaged.c            | 158 ++++++++++++++++++++-----------------
 2 files changed, 88 insertions(+), 79 deletions(-)


base-commit: cd119c65a615bd7bfe8cda715a77132c8e3da067
-- 
2.43.0