[PATCH v3 3/4] fs: change write_begin/write_end interface to take struct kiocb *

[Matthew Wilcox]

On Fri, Jun 27, 2025 at 11:03:11AM +0000, 陈涛涛 Taotao Chen wrote:
> @@ -1399,13 +1400,10 @@ static int write_end_fn(handle_t *handle, struct inode *inode,
>  }
>  
>  /*
> - * We need to pick up the new inode size which generic_commit_write gave us
> - * `file' can be NULL - eg, when called from page_symlink().
> - *

Why delete this?  It seems still true to me, other than s/file/iocb/

>   * ext4 never places buffers on inode->i_mapping->i_private_list.  metadata
>   * buffers are managed internally.
>   */
> -static int ext4_write_end(struct file *file,
> +static int ext4_write_end(const struct kiocb *iocb,
>  			  struct address_space *mapping,
>  			  loff_t pos, unsigned len, unsigned copied,
>  			  struct folio *folio, void *fsdata)