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Nico Pache (Red Hat)
cc044178ed
Fix comment in collapse_scan_pmd() that still described the old folio_mapcount() > folio_ref_count() check and a "512" false-positive scenario. The code now uses folio_expected_ref_count() != folio_ref_count() which doesn't suffer from the same limitation. Fix comment in collapse_huge_page() that referenced ptep_clear_flush, when the code actually uses pmdp_collapse_flush. Fix comment in __collapse_huge_page_swapin() that referenced the old function name khugepaged_scan_pmd, now collapse_scan_pmd. Also clean up some simple typos and stale terminology (mmap_sem -> mmap_lock, PG_lock -> folio lock, page -> folio, grammar). We also clarify a comment regarding where the max_ptes_none check is deferred to in mthp_collapse() from the original collapse_scan_pmd check. Update all comments that references a function to include parentheses. [nico.pache@linux.dev: fix outdated comments] Link: https://lore.kernel.org/1c96e2f3-802f-472b-81e6-4af17a721a3c@linux.dev Link: https://lore.kernel.org/20260811-khugepaged_pte_refactor-v4-4-ddac39d61c4a@linux.dev Signed-off-by: Nico Pache (Red Hat) <nico.pache@linux.dev> Acked-by: Usama Arif <usama.arif@linux.dev> Assisted-by: Cursor(claude-sonnet-4):4.6 Acked-by: David Hildenbrand (Arm) <david@kernel.org> Reviewed-by: Zi Yan <ziy@nvidia.com> Acked-by: Pedro Falcato <pfalcato@suse.de> Reviewed-by: Lorenzo Stoakes (ARM) <ljs@kernel.org> Reviewed-by: Lance Yang <lance.yang@linux.dev> Cc: Baolin Wang <baolin.wang@linux.alibaba.com> Cc: Barry Song <baohua@kernel.org> Cc: Dev Jain <dev.jain@arm.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Liam R. Howlett <liam@infradead.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Rapoport <rppt@kernel.org> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Vlastimil Babka <vbabka@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>