diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2023-03-27 18:10:50 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-04-19 02:29:46 +0300 |
| commit | 957ebbdf434013ee01f29f6c9174eced995ebbe7 (patch) | |
| tree | e6944d52b3630757fbb42ceafdb18bf214c88052 /mm/hugetlb.c | |
| parent | 4519a254e0170c5d9d0b1054f045ec1f436c6336 (diff) | |
| download | linux-957ebbdf434013ee01f29f6c9174eced995ebbe7.tar.xz | |
hugetlb: remove PageHeadHuge()
Sidhartha Kumar removed the last caller of PageHeadHuge(), so we can now
remove it and make folio_test_hugetlb() the real implementation. Add
kernel-doc for folio_test_hugetlb().
Link: https://lkml.kernel.org/r/20230327151050.1787744-1-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/hugetlb.c')
| -rw-r--r-- | mm/hugetlb.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index a58b3739ed4b..7e4a80769c9e 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -2050,19 +2050,23 @@ int PageHuge(struct page *page) } EXPORT_SYMBOL_GPL(PageHuge); -/* - * PageHeadHuge() only returns true for hugetlbfs head page, but not for - * normal or transparent huge pages. +/** + * folio_test_hugetlb - Determine if the folio belongs to hugetlbfs + * @folio: The folio to test. + * + * Context: Any context. Caller should have a reference on the folio to + * prevent it from being turned into a tail page. + * Return: True for hugetlbfs folios, false for anon folios or folios + * belonging to other filesystems. */ -int PageHeadHuge(struct page *page_head) +bool folio_test_hugetlb(struct folio *folio) { - struct folio *folio = (struct folio *)page_head; if (!folio_test_large(folio)) - return 0; + return false; return folio->_folio_dtor == HUGETLB_PAGE_DTOR; } -EXPORT_SYMBOL_GPL(PageHeadHuge); +EXPORT_SYMBOL_GPL(folio_test_hugetlb); /* * Find and lock address space (mapping) in write mode. |