[PATCH 4/4] mm: Remove FGP_HEAD

["Matthew Wilcox (Oracle)" <willy@infradead.org>]

This is no longer used; all callers have been converted to use folios
instead.  Somehow this manages to save 11 bytes of text.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
 include/linux/pagemap.h | 5 ++---
 mm/folio-compat.c       | 2 +-
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index bbccb4044222..f690c979913d 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -504,9 +504,8 @@ pgoff_t page_cache_prev_miss(struct address_space *mapping,
 #define FGP_NOFS		0x00000010
 #define FGP_NOWAIT		0x00000020
 #define FGP_FOR_MMAP		0x00000040
-#define FGP_HEAD		0x00000080
-#define FGP_ENTRY		0x00000100
-#define FGP_STABLE		0x00000200
+#define FGP_ENTRY		0x00000080
+#define FGP_STABLE		0x00000100
 
 struct folio *__filemap_get_folio(struct address_space *mapping, pgoff_t index,
 		int fgp_flags, gfp_t gfp);
diff --git a/mm/folio-compat.c b/mm/folio-compat.c
index e1e23b4947d7..4eab4e505e85 100644
--- a/mm/folio-compat.c
+++ b/mm/folio-compat.c
@@ -108,7 +108,7 @@ struct page *pagecache_get_page(struct address_space *mapping, pgoff_t index,
 	struct folio *folio;
 
 	folio = __filemap_get_folio(mapping, index, fgp_flags, gfp);
-	if ((fgp_flags & FGP_HEAD) || !folio || xa_is_value(folio))
+	if (!folio || xa_is_value(folio))
 		return &folio->page;
 	return folio_file_page(folio, index);
 }
-- 
2.35.1