diff mbox series

[09/29] xfs: turn xfs_da_args.value into a void pointer

Message ID 20200114081051.297488-10-hch@lst.de (mailing list archive)
State Superseded
Headers show
Series [01/29] xfs: remove the ATTR_INCOMPLETE flag | expand

Commit Message

Christoph Hellwig Jan. 14, 2020, 8:10 a.m. UTC
The xattr values are blobs and should not be typed.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 fs/xfs/libxfs/xfs_types.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Darrick J. Wong Jan. 21, 2020, 6:07 p.m. UTC | #1
On Tue, Jan 14, 2020 at 09:10:31AM +0100, Christoph Hellwig wrote:
> The xattr values are blobs and should not be typed.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

/me wonders if it's worth using a union for filetype vs. value/valuelen
to save a few padding bytes, but that's another patch...

Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>

--D

> ---
>  fs/xfs/libxfs/xfs_types.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/xfs/libxfs/xfs_types.h b/fs/xfs/libxfs/xfs_types.h
> index e2711d119665..634814dd1d10 100644
> --- a/fs/xfs/libxfs/xfs_types.h
> +++ b/fs/xfs/libxfs/xfs_types.h
> @@ -192,7 +192,7 @@ typedef struct xfs_da_args {
>  	const uint8_t	*name;		/* string (maybe not NULL terminated) */
>  	int		namelen;	/* length of string (maybe no NULL) */
>  	uint8_t		filetype;	/* filetype of inode for directories */
> -	uint8_t		*value;		/* set of bytes (maybe contain NULLs) */
> +	void		*value;		/* set of bytes (maybe contain NULLs) */
>  	int		valuelen;	/* length of value */
>  	int		flags;		/* argument flags (eg: ATTR_NOCREATE) */
>  	xfs_dahash_t	hashval;	/* hash value of name */
> -- 
> 2.24.1
>
Christoph Hellwig Jan. 23, 2020, 10:36 p.m. UTC | #2
On Tue, Jan 21, 2020 at 10:07:42AM -0800, Darrick J. Wong wrote:
> On Tue, Jan 14, 2020 at 09:10:31AM +0100, Christoph Hellwig wrote:
> > The xattr values are blobs and should not be typed.
> > 
> > Signed-off-by: Christoph Hellwig <hch@lst.de>
> 
> /me wonders if it's worth using a union for filetype vs. value/valuelen
> to save a few padding bytes, but that's another patch...

If we want to go down that route it might make sense to have an
xfs_attr_args and xfs_dir2_args, which both embedd the da_args.  But not
for now..
diff mbox series

Patch

diff --git a/fs/xfs/libxfs/xfs_types.h b/fs/xfs/libxfs/xfs_types.h
index e2711d119665..634814dd1d10 100644
--- a/fs/xfs/libxfs/xfs_types.h
+++ b/fs/xfs/libxfs/xfs_types.h
@@ -192,7 +192,7 @@  typedef struct xfs_da_args {
 	const uint8_t	*name;		/* string (maybe not NULL terminated) */
 	int		namelen;	/* length of string (maybe no NULL) */
 	uint8_t		filetype;	/* filetype of inode for directories */
-	uint8_t		*value;		/* set of bytes (maybe contain NULLs) */
+	void		*value;		/* set of bytes (maybe contain NULLs) */
 	int		valuelen;	/* length of value */
 	int		flags;		/* argument flags (eg: ATTR_NOCREATE) */
 	xfs_dahash_t	hashval;	/* hash value of name */