[f2fs-dev] [PATCH 11/11] f2fs: Remove calls to folio_file_mapping()

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

All folios that f2fs sees belong to f2fs and not to the swapcache
so it can dereference folio->mapping directly like all other
filesystems do.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
 fs/f2fs/data.c              | 2 +-
 fs/f2fs/inline.c            | 2 +-
 include/trace/events/f2fs.h | 9 ++++-----
 3 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index e68a4dd9bc17..0657f731d4b7 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -2455,7 +2455,7 @@ static int f2fs_mpage_readpages(struct inode *inode,
 
 static int f2fs_read_data_folio(struct file *file, struct folio *folio)
 {
-	struct inode *inode = folio_file_mapping(folio)->host;
+	struct inode *inode = folio->mapping->host;
 	int ret = -EAGAIN;
 
 	trace_f2fs_readpage(folio, DATA);
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index 005babf1bed1..cbd2a0d34804 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -81,7 +81,7 @@ bool f2fs_may_inline_dentry(struct inode *inode)
 
 void f2fs_do_read_inline_data(struct folio *folio, struct page *ipage)
 {
-	struct inode *inode = folio_file_mapping(folio)->host;
+	struct inode *inode = folio->mapping->host;
 
 	if (folio_test_uptodate(folio))
 		return;
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 3253f45508e8..eb3b2f1326b1 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -1322,12 +1322,11 @@ DECLARE_EVENT_CLASS(f2fs__folio,
 	),
 
 	TP_fast_assign(
-		__entry->dev	= folio_file_mapping(folio)->host->i_sb->s_dev;
-		__entry->ino	= folio_file_mapping(folio)->host->i_ino;
+		__entry->dev	= folio->mapping->host->i_sb->s_dev;
+		__entry->ino	= folio->mapping->host->i_ino;
 		__entry->type	= type;
-		__entry->dir	=
-			S_ISDIR(folio_file_mapping(folio)->host->i_mode);
-		__entry->index	= folio_index(folio);
+		__entry->dir	= S_ISDIR(folio->mapping->host->i_mode);
+		__entry->index	= folio->index;
 		__entry->dirty	= folio_test_dirty(folio);
 		__entry->uptodate = folio_test_uptodate(folio);
 	),
-- 
2.45.2



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