Hi,

Looks good though if you call ntfs_truncate() rather than ntfs_truncate_vfs() 
you can use it to return an error code in the case that ntfs_truncate() fails.  
That could be done as a separate patch of course.

You can add my Reviewed-by: or Signed-off-by: to this patch.

Best regards,

        Anton

On 31 Aug 2012, at 15:02, Marco Stornelli <marco.storne...@gmail.com> wrote:

> Removed vmtruncate.
> 
> Signed-off-by: Marco Stornelli <marco.storne...@gmail.com>
> ---
> fs/ntfs/file.c  |    8 +++++---
> fs/ntfs/inode.c |   11 +++++++++--
> fs/ntfs/inode.h |    4 ++++
> 3 files changed, 18 insertions(+), 5 deletions(-)
> 
> diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
> index 1ecf464..5332e90 100644
> --- a/fs/ntfs/file.c
> +++ b/fs/ntfs/file.c
> @@ -2022,8 +2022,11 @@ static ssize_t ntfs_file_buffered_write(struct kiocb 
> *iocb,
>                                * allocated space, which is not a disaster.
>                                */
>                               i_size = i_size_read(vi);
> -                             if (pos + bytes > i_size)
> -                                     vmtruncate(vi, i_size);
> +                             if ((pos + bytes > i_size) &&
> +                                     inode_newsize_ok(vi, i_size) == 0) {
> +                                     truncate_setsize(vi, i_size);
> +                                     ntfs_truncate_vfs(vi);
> +                             }
>                               break;
>                       }
>               }
> @@ -2227,7 +2230,6 @@ const struct file_operations ntfs_file_ops = {
> 
> const struct inode_operations ntfs_file_inode_ops = {
> #ifdef NTFS_RW
> -     .truncate       = ntfs_truncate_vfs,
>       .setattr        = ntfs_setattr,
> #endif /* NTFS_RW */
> };
> diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c
> index c6dbd3d..fe05a92 100644
> --- a/fs/ntfs/inode.c
> +++ b/fs/ntfs/inode.c
> @@ -2865,9 +2865,11 @@ conv_err_out:
>  *
>  * See ntfs_truncate() description above for details.
>  */
> +#ifdef NTFS_RW
> void ntfs_truncate_vfs(struct inode *vi) {
>       ntfs_truncate(vi);
> }
> +#endif
> 
> /**
>  * ntfs_setattr - called from notify_change() when an attribute is being 
> changed
> @@ -2913,8 +2915,13 @@ int ntfs_setattr(struct dentry *dentry, struct iattr 
> *attr)
>                                               NInoCompressed(ni) ?
>                                               "compressed" : "encrypted");
>                               err = -EOPNOTSUPP;
> -                     } else
> -                             err = vmtruncate(vi, attr->ia_size);
> +                     } else {
> +                             err = inode_newsize_ok(vi, attr->ia_size);
> +                             if (!err) {
> +                                     truncate_setsize(vi, attr->ia_size);
> +                                     ntfs_truncate_vfs(vi);
> +                             }
> +                     }
>                       if (err || ia_valid == ATTR_SIZE)
>                               goto out;
>               } else {
> diff --git a/fs/ntfs/inode.h b/fs/ntfs/inode.h
> index db29695..76b6cfb 100644
> --- a/fs/ntfs/inode.h
> +++ b/fs/ntfs/inode.h
> @@ -316,6 +316,10 @@ static inline void ntfs_commit_inode(struct inode *vi)
>       return;
> }
> 
> +#else
> +
> +static inline void ntfs_truncate_vfs(struct inode *vi) {}
> +
> #endif /* NTFS_RW */
> 
> #endif /* _LINUX_NTFS_INODE_H */
> -- 
> 1.7.3.4

Best regards,

        Anton
-- 
Anton Altaparmakov <aia21 at cam.ac.uk> (replace at with @)
Unix Support, Computing Service, University of Cambridge, CB2 3QH, UK
Linux NTFS maintainer, http://www.linux-ntfs.org/

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