diff options
| author | David Hildenbrand (Arm) <david@kernel.org> | 2026-07-16 16:51:03 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-08-04 19:18:41 -0700 |
| commit | f4436442e5999bf63315a67803819c48a886d132 (patch) | |
| tree | ebfabeffe4dda905e675b0cc5271d502d985e688 /include/linux | |
| parent | cbbd561893f65e2b31cf9c18634405cb8d8bf6f0 (diff) | |
mm/bootmem_info: allow calling free_bootmem_page() on pages without a bootmem_type
As preparation for further changes, let's temporarily allow freeing pages
that were not previously registered.
This will allow freeing unregistered vmemmap pages allocated during boot
through free_bootmem_page() from hugetlb code, until we fully rip all of
that out.
Link: https://lore.kernel.org/20260716-bootmem_info_part2-v2-4-4afc76c73d61@kernel.org
Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Muchun Song <muchun.song@linux.dev>
Acked-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: "Borislav Petkov (AMD)" <bp@alien8.de>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Brendan Jackman <brendan.jackman@linux.dev>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/bootmem_info.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/include/linux/bootmem_info.h b/include/linux/bootmem_info.h index f724340755e5..486acc612703 100644 --- a/include/linux/bootmem_info.h +++ b/include/linux/bootmem_info.h @@ -44,12 +44,12 @@ static inline void free_bootmem_page(struct page *page) { enum bootmem_type type = bootmem_type(page); - VM_BUG_ON_PAGE(page_ref_count(page) != 2, page); - - if (type == SECTION_INFO || type == MIX_SECTION_INFO) + if (type == SECTION_INFO || type == MIX_SECTION_INFO) { + VM_WARN_ON_PAGE(page_ref_count(page) != 2, page); put_page_bootmem(page); - else - VM_BUG_ON_PAGE(1, page); + } else { + free_reserved_page(page); + } } #else static inline void register_page_bootmem_info_node(struct pglist_data *pgdat) |