f2fs: Add F2FS_F_SB()

Matthew Wilcox (Oracle) · Jaegeuk Kim · commit 1cf746007005 · 2024-12-16T16:12:10.000Z
This is the folio equivalent of F2FS_P_SB().  Removes a call to
page_file_mapping() as we know folios seen by f2fs are never part of
the swap cache.

Signed-off-by: Matthew Wilcox (Oracle) &lt;willy@infradead.org&gt;
Reviewed-by: Chao Yu &lt;chao@kernel.org&gt;
Signed-off-by: Jaegeuk Kim &lt;jaegeuk@kernel.org&gt;
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
@@ -2003,9 +2003,14 @@ static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
 	return F2FS_I_SB(mapping->host);
 }
 
+static inline struct f2fs_sb_info *F2FS_F_SB(struct folio *folio)
+{
+	return F2FS_M_SB(folio->mapping);
+}
+
 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
 {
-	return F2FS_M_SB(page_file_mapping(page));
+	return F2FS_F_SB(page_folio(page));
 }
 
 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)

Original file line number	Diff line number	Diff line change
`@@ -2003,9 +2003,14 @@ static inline struct f2fs_sb_info F2FS_M_SB(struct address_space mapping)`
`2003`	`2003`	`return F2FS_I_SB(mapping->host);`
`2004`	`2004`	`}`
`2005`	`2005`
	`2006`	`+static inline struct f2fs_sb_info F2FS_F_SB(struct folio folio)`
	`2007`	`+{`
	`2008`	`+ return F2FS_M_SB(folio->mapping);`
	`2009`	`+}`
	`2010`	`+`
`2006`	`2011`	`static inline struct f2fs_sb_info F2FS_P_SB(struct page page)`
`2007`	`2012`	`{`
`2008`		`- return F2FS_M_SB(page_file_mapping(page));`
	`2013`	`+ return F2FS_F_SB(page_folio(page));`
`2009`	`2014`	`}`
`2010`	`2015`
`2011`	`2016`	`static inline struct f2fs_super_block F2FS_RAW_SUPER(struct f2fs_sb_info sbi)`