fs: change write_begin/write_end interface to take struct kiocb *

Change the address_space_operations callbacks write_begin() and
write_end() to take struct kiocb * as the first argument instead of
struct file *.

Update all affected function prototypes, implementations, call sites,
and related documentation across VFS, filesystems, and block layer.

Part of a series refactoring address_space_operations write_begin and
write_end callbacks to use struct kiocb for passing write context and
flags.

Signed-off-by: Taotao Chen <chentaotao@didiglobal.com>
Link: https://lore.kernel.org/20250716093559.217344-4-chentaotao@didiglobal.com
Signed-off-by: Christian Brauner <brauner@kernel.org>

3 files changed, 12 insertions, 9 deletions

diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c
index 1e99a35691cd..1590c2a3c48f 100644
--- a/fs/ntfs3/file.c
+++ b/fs/ntfs3/file.c
@@ -154,13 +154,13 @@ static int ntfs_extend_initialized_size(struct file *file,
 		if (pos + len > new_valid)
 			len = new_valid - pos;
 
-		err = ntfs_write_begin(file, mapping, pos, len, &folio, NULL);
+		err = ntfs_write_begin(NULL, mapping, pos, len, &folio, NULL);
 		if (err)
 			goto out;
 
 		folio_zero_range(folio, zerofrom, folio_size(folio) - zerofrom);
 
-		err = ntfs_write_end(file, mapping, pos, len, len, folio, NULL);
+		err = ntfs_write_end(NULL, mapping, pos, len, len, folio, NULL);
 		if (err < 0)
 			goto out;
 		pos += len;
diff --git a/fs/ntfs3/inode.c b/fs/ntfs3/inode.c
index 0f0d27d4644a..dad088e64b3c 100644
--- a/fs/ntfs3/inode.c
+++ b/fs/ntfs3/inode.c
@@ -912,7 +912,7 @@ static int ntfs_get_block_write_begin(struct inode *inode, sector_t vbn,
 				  bh_result, create, GET_BLOCK_WRITE_BEGIN);
 }
 
-int ntfs_write_begin(struct file *file, struct address_space *mapping,
+int ntfs_write_begin(const struct kiocb *iocb, struct address_space *mapping,
 		     loff_t pos, u32 len, struct folio **foliop, void **fsdata)
 {
 	int err;
@@ -957,7 +957,8 @@ out:
 /*
  * ntfs_write_end - Address_space_operations::write_end.
  */
-int ntfs_write_end(struct file *file, struct address_space *mapping, loff_t pos,
+int ntfs_write_end(const struct kiocb *iocb,
+		   struct address_space *mapping, loff_t pos,
 		   u32 len, u32 copied, struct folio *folio, void *fsdata)
 {
 	struct inode *inode = mapping->host;
@@ -989,7 +990,7 @@ int ntfs_write_end(struct file *file, struct address_space *mapping, loff_t pos,
 		folio_unlock(folio);
 		folio_put(folio);
 	} else {
-		err = generic_write_end(file, mapping, pos, len, copied, folio,
+		err = generic_write_end(iocb, mapping, pos, len, copied, folio,
 					fsdata);
 	}
 
diff --git a/fs/ntfs3/ntfs_fs.h b/fs/ntfs3/ntfs_fs.h
index 36b8052660d5..921257773eec 100644
--- a/fs/ntfs3/ntfs_fs.h
+++ b/fs/ntfs3/ntfs_fs.h
@@ -702,10 +702,12 @@ struct inode *ntfs_iget5(struct super_block *sb, const struct MFT_REF *ref,
 int ntfs_set_size(struct inode *inode, u64 new_size);
 int ntfs_get_block(struct inode *inode, sector_t vbn,
 		   struct buffer_head *bh_result, int create);
-int ntfs_write_begin(struct file *file, struct address_space *mapping,
-		     loff_t pos, u32 len, struct folio **foliop, void **fsdata);
-int ntfs_write_end(struct file *file, struct address_space *mapping, loff_t pos,
-		   u32 len, u32 copied, struct folio *folio, void *fsdata);
+int ntfs_write_begin(const struct kiocb *iocb, struct address_space *mapping,
+		     loff_t pos, u32 len, struct folio **foliop,
+		     void **fsdata);
+int ntfs_write_end(const struct kiocb *iocb, struct address_space *mapping,
+		   loff_t pos, u32 len, u32 copied, struct folio *folio,
+		   void *fsdata);
 int ntfs3_write_inode(struct inode *inode, struct writeback_control *wbc);
 int ntfs_sync_inode(struct inode *inode);
 int inode_read_data(struct inode *inode, void *data, size_t bytes);