[PATCH v4 2/2] ext4: cleanup unused CONVERT_INLINE_DATA flag

[Aditya Srivastava <aditya.ansh182@gmail.com>]

From: Aditya Prakash Srivastava <aditya.ansh182@gmail.com>

After implementing bitwise flags for tracking the inline data write
state in the address space fsdata parameter, the CONVERT_INLINE_DATA
state flag is left unused and can be removed.

Perform this clean-up by:
1) Deleting the CONVERT_INLINE_DATA definition from ext4.h.
2) Removing the void **fsdata argument from both the forward
   declaration and the definition of the internal helper
   ext4_da_convert_inline_data_to_extent().
3) Removing the void **fsdata argument from the declaration and
   definition of ext4_generic_write_inline_data() and updating
   the caller ext4_try_to_write_inline_data() and the internal
   re-alloc retry logic accordingly.
4) Updating ext4_da_write_begin() to call
   ext4_generic_write_inline_data() without the fsdata parameter.

Suggested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Aditya Prakash Srivastava <aditya.ansh182@gmail.com>
---
Changes in v4:
- Resent as Patch 2/2 of the v4 series, as suggested by Jan Kara.

Changes in v3:
- Initial version of the cleanup patch.

 fs/ext4/ext4.h   |  5 ++---
 fs/ext4/inline.c | 13 +++++--------
 fs/ext4/inode.c  |  2 +-
 3 files changed, 8 insertions(+), 12 deletions(-)

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 9e6f6467bdeb..c2e4262406a7 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -3137,8 +3137,7 @@ int do_journal_get_write_access(handle_t *handle, struct inode *inode,
 				struct buffer_head *bh);
 void ext4_set_inode_mapping_order(struct inode *inode);
 #define FALL_BACK_TO_NONDELALLOC 1
-#define CONVERT_INLINE_DATA	 2
-#define EXT4_WRITE_DATA_INLINE	 4
+#define EXT4_WRITE_DATA_INLINE	 2
 
 typedef enum {
 	EXT4_IGET_NORMAL =	0,
@@ -3749,7 +3748,7 @@ extern int ext4_generic_write_inline_data(struct address_space *mapping,
 					  struct inode *inode,
 					  loff_t pos, unsigned len,
 					  struct folio **foliop,
-					  void **fsdata, bool da);
+					  bool da);
 extern int ext4_try_add_inline_entry(handle_t *handle,
 				     struct ext4_filename *fname,
 				     struct inode *dir, struct inode *inode);
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index cfd591dc1d9c..0cb2dc195d23 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -22,8 +22,7 @@
 
 
 static int ext4_da_convert_inline_data_to_extent(struct address_space *mapping,
-						 struct inode *inode,
-						 void **fsdata);
+						 struct inode *inode);
 
 static int ext4_get_inline_size(struct inode *inode)
 {
@@ -697,7 +696,7 @@ int ext4_generic_write_inline_data(struct address_space *mapping,
 					  struct inode *inode,
 					  loff_t pos, unsigned len,
 					  struct folio **foliop,
-					  void **fsdata, bool da)
+					  bool da)
 {
 	int ret;
 	handle_t *handle;
@@ -728,7 +727,7 @@ int ext4_generic_write_inline_data(struct address_space *mapping,
 			return ext4_convert_inline_data_to_extent(mapping, inode);
 		}
 
-		ret = ext4_da_convert_inline_data_to_extent(mapping, inode, fsdata);
+		ret = ext4_da_convert_inline_data_to_extent(mapping, inode);
 		if (ret == -ENOSPC &&
 		    ext4_should_retry_alloc(inode->i_sb, &retries))
 			goto retry_journal;
@@ -788,7 +787,7 @@ int ext4_try_to_write_inline_data(struct address_space *mapping,
 	if (pos + len > ext4_get_max_inline_size(inode))
 		return ext4_convert_inline_data_to_extent(mapping, inode);
 	return ext4_generic_write_inline_data(mapping, inode, pos, len,
-					      foliop, NULL, false);
+					      foliop, false);
 }
 
 int ext4_write_inline_data_end(struct inode *inode, loff_t pos, unsigned len,
@@ -895,8 +894,7 @@ int ext4_write_inline_data_end(struct inode *inode, loff_t pos, unsigned len,
  *    need to start the journal since the file's metadata isn't changed now.
  */
 static int ext4_da_convert_inline_data_to_extent(struct address_space *mapping,
-						 struct inode *inode,
-						 void **fsdata)
+						 struct inode *inode)
 {
 	int ret = 0, inline_size;
 	struct folio *folio;
@@ -934,7 +932,6 @@ static int ext4_da_convert_inline_data_to_extent(struct address_space *mapping,
 	folio_mark_dirty(folio);
 	folio_mark_uptodate(folio);
 	ext4_clear_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA);
-	*fsdata = (void *)CONVERT_INLINE_DATA;
 
 out:
 	up_read(&EXT4_I(inode)->xattr_sem);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 4e1bf54e511d..9a0fbaf73ce2 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3160,7 +3160,7 @@ static int ext4_da_write_begin(const struct kiocb *iocb,
 
 	if (ext4_test_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA)) {
 		ret = ext4_generic_write_inline_data(mapping, inode, pos, len,
-						     foliop, fsdata, true);
+						     foliop, true);
 		if (ret < 0)
 			return ret;
 		if (ret == 1) {
-- 
2.47.3