f2fs: Use a folio in f2fs_is_cp_guaranteed()

Convert the passed page to a folio and use it throughout.  Removes
a use of fscrypt_is_bounce_page(), which we're trying to remove.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

1 files changed, 6 insertions, 4 deletions

diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h
index 56fad33043d5..8d9127a0fdb3 100644
--- a/include/linux/fscrypt.h
+++ b/include/linux/fscrypt.h
@@ -332,12 +332,13 @@ static inline struct page *fscrypt_pagecache_page(struct page *bounce_page)
 	return (struct page *)page_private(bounce_page);
 }
 
-static inline bool fscrypt_is_bounce_folio(struct folio *folio)
+static inline bool fscrypt_is_bounce_folio(const struct folio *folio)
 {
 	return folio->mapping == NULL;
 }
 
-static inline struct folio *fscrypt_pagecache_folio(struct folio *bounce_folio)
+static inline
+struct folio *fscrypt_pagecache_folio(const struct folio *bounce_folio)
 {
 	return bounce_folio->private;
 }
@@ -518,12 +519,13 @@ static inline struct page *fscrypt_pagecache_page(struct page *bounce_page)
 	return ERR_PTR(-EINVAL);
 }
 
-static inline bool fscrypt_is_bounce_folio(struct folio *folio)
+static inline bool fscrypt_is_bounce_folio(const struct folio *folio)
 {
 	return false;
 }
 
-static inline struct folio *fscrypt_pagecache_folio(struct folio *bounce_folio)
+static inline
+struct folio *fscrypt_pagecache_folio(const struct folio *bounce_folio)
 {
 	WARN_ON_ONCE(1);
 	return ERR_PTR(-EINVAL);