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filemap: remove find_subpage()

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All users of this function now call folio_file_page() instead.  Delete it.

Link: https://lkml.kernel.org/r/20250402210612.2444135-6-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle)
2025-04-02 22:06:07 +01:00
committed by Andrew Morton
parent 70d1be00b4
commit 9c532d7908
1 changed files with 0 additions and 13 deletions
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13
include/linux/pagemap.h
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@@ -945,19 +945,6 @@ static inline bool folio_contains(struct folio *folio, pgoff_t index)
return index - folio_index(folio) < folio_nr_pages(folio);
}
/*
* Given the page we found in the page cache, return the page corresponding
* to this index in the file
*/
static inline struct page *find_subpage(struct page *head, pgoff_t index)
{
/* HugeTLBfs wants the head page regardless */
if (PageHuge(head))
return head;
return head + (index & (thp_nr_pages(head) - 1));
}
unsigned filemap_get_folios(struct address_space *mapping, pgoff_t *start,
pgoff_t end, struct folio_batch *fbatch);
unsigned filemap_get_folios_contig(struct address_space *mapping,