diff options
| author | David Howells <[email protected]> | 2022-03-22 14:45:26 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2022-03-22 15:57:08 -0700 |
| commit | 4e936ecc013adde12649d572352d6f37655c39b7 (patch) | |
| tree | a506fb238376a06b8ebdad887d3f0f00f7cc6aae | |
| parent | 98bc26ac770fe507b4c23f5ee748f641146fb076 (diff) | |
mm/hugetlb.c: export PageHeadHuge()
Export PageHeadHuge() - it's used by folio_test_hugetlb() and thence by
such as folio_file_page() and folio_contains(). Matthew suggested I use
the first of those instead of doing the same calculation manually - but I
can't call it from a module.
Kirill suggested rearranging things to put it in a header, but that
introduces header dependencies because of where constants are defined.
[[email protected]: s/EXPORT_SYMBOL/EXPORT_SYMBOL_GPL/, per Christoph]
Link: https://lkml.kernel.org/r/[email protected]
Link: https://lore.kernel.org/r/163707085314.3221130.14783857863702203440.stgit@warthog.procyon.org.uk/
Signed-off-by: David Howells <[email protected]>
Cc: Matthew Wilcox (Oracle) <[email protected]>
Cc: Kirill A. Shutemov <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Mike Kravetz <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | mm/hugetlb.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 369ff0791bdd..f425147e4ce3 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1855,6 +1855,7 @@ int PageHeadHuge(struct page *page_head) return page_head[1].compound_dtor == HUGETLB_PAGE_DTOR; } +EXPORT_SYMBOL_GPL(PageHeadHuge); /* * Find and lock address space (mapping) in write mode. |