[XFS] Make some extended attributes routines take const parameters, for

the FreeBSD porters.

SGI-PV: 942906
SGI-Modid: xfs-linux:xfs-kern:23845a
Signed-off-by: Nathan Scott <nathans@sgi.com>

fs/xfs/linux-2.6/xfs_vnode.h

@@ -216,11 +216,12 @@ typedef void	(*vop_rwunlock_t)(bhv_desc_t *, vrwlock_t);
 typedef int	(*vop_bmap_t)(bhv_desc_t *, xfs_off_t, ssize_t, int,
 				struct xfs_iomap *, int *);
 typedef int	(*vop_reclaim_t)(bhv_desc_t *);
-typedef int	(*vop_attr_get_t)(bhv_desc_t *, char *, char *, int *, int,
-				struct cred *);
-typedef	int	(*vop_attr_set_t)(bhv_desc_t *, char *, char *, int, int,
-				struct cred *);
-typedef	int	(*vop_attr_remove_t)(bhv_desc_t *, char *, int, struct cred *);
+typedef int	(*vop_attr_get_t)(bhv_desc_t *, const char *, char *, int *,
+				int, struct cred *);
+typedef	int	(*vop_attr_set_t)(bhv_desc_t *, const char *, char *, int,
+				int, struct cred *);
+typedef	int	(*vop_attr_remove_t)(bhv_desc_t *, const char *,
+				int, struct cred *);
 typedef	int	(*vop_attr_list_t)(bhv_desc_t *, char *, int, int,
 				struct attrlist_cursor_kern *, struct cred *);
 typedef void	(*vop_link_removed_t)(bhv_desc_t *, vnode_t *, int);

fs/xfs/xfs_attr.c

@@ -122,7 +122,7 @@ ktrace_t *xfs_attr_trace_buf;
  *========================================================================*/
 
 int
-xfs_attr_fetch(xfs_inode_t *ip, char *name, int namelen,
+xfs_attr_fetch(xfs_inode_t *ip, const char *name, int namelen,
 	       char *value, int *valuelenp, int flags, struct cred *cred)
 {
 	xfs_da_args_t   args;
@@ -177,7 +177,7 @@ xfs_attr_fetch(xfs_inode_t *ip, char *name, int namelen,
 }
 
 int
-xfs_attr_get(bhv_desc_t *bdp, char *name, char *value, int *valuelenp,
+xfs_attr_get(bhv_desc_t *bdp, const char *name, char *value, int *valuelenp,
 	     int flags, struct cred *cred)
 {
 	xfs_inode_t	*ip = XFS_BHVTOI(bdp);
@@ -201,7 +201,7 @@ xfs_attr_get(bhv_desc_t *bdp, char *name, char *value, int *valuelenp,
 }
 
 STATIC int
-xfs_attr_set_int(xfs_inode_t *dp, char *name, int namelen,
+xfs_attr_set_int(xfs_inode_t *dp, const char *name, int namelen,
 		 char *value, int valuelen, int flags)
 {
 	xfs_da_args_t	args;
@@ -437,7 +437,7 @@ xfs_attr_set_int(xfs_inode_t *dp, char *name, int namelen,
 }
 
 int
-xfs_attr_set(bhv_desc_t *bdp, char *name, char *value, int valuelen, int flags,
+xfs_attr_set(bhv_desc_t *bdp, const char *name, char *value, int valuelen, int flags,
 	     struct cred *cred)
 {
 	xfs_inode_t	*dp;
@@ -469,7 +469,7 @@ xfs_attr_set(bhv_desc_t *bdp, char *name, char *value, int valuelen, int flags,
  * Transitions attribute list from Btree to shortform as necessary.
  */
 STATIC int
-xfs_attr_remove_int(xfs_inode_t *dp, char *name, int namelen, int flags)
+xfs_attr_remove_int(xfs_inode_t *dp, const char *name, int namelen, int flags)
 {
 	xfs_da_args_t	args;
 	xfs_fsblock_t	firstblock;
@@ -592,7 +592,7 @@ xfs_attr_remove_int(xfs_inode_t *dp, char *name, int namelen, int flags)
 }
 
 int
-xfs_attr_remove(bhv_desc_t *bdp, char *name, int flags, struct cred *cred)
+xfs_attr_remove(bhv_desc_t *bdp, const char *name, int flags, struct cred *cred)
 {
 	xfs_inode_t         *dp;
 	int                 namelen, error;

fs/xfs/xfs_attr.h

@@ -172,15 +172,15 @@ struct xfs_da_args;
 /*
  * Overall external interface routines.
  */
-int xfs_attr_get(bhv_desc_t *, char *, char *, int *, int, struct cred *);
-int xfs_attr_set(bhv_desc_t *, char *, char *, int, int, struct cred *);
-int xfs_attr_remove(bhv_desc_t *, char *, int, struct cred *);
+int xfs_attr_get(bhv_desc_t *, const char *, char *, int *, int, struct cred *);
+int xfs_attr_set(bhv_desc_t *, const char *, char *, int, int, struct cred *);
+int xfs_attr_remove(bhv_desc_t *, const char *, int, struct cred *);
 int xfs_attr_list(bhv_desc_t *, char *, int, int,
 			 struct attrlist_cursor_kern *, struct cred *);
 int xfs_attr_inactive(struct xfs_inode *dp);
 
 int xfs_attr_shortform_getvalue(struct xfs_da_args *);
-int xfs_attr_fetch(struct xfs_inode *, char *, int,
+int xfs_attr_fetch(struct xfs_inode *, const char *, int,
 			char *, int *, int, struct cred *);
 
 #endif	/* __XFS_ATTR_H__ */

fs/xfs/xfs_da_btree.c

@@ -1604,7 +1604,7 @@ xfs_da_path_shift(xfs_da_state_t *state, xfs_da_state_path_t *path,
  * This is implemented with some source-level loop unrolling.
  */
 xfs_dahash_t
-xfs_da_hashname(uchar_t *name, int namelen)
+xfs_da_hashname(const uchar_t *name, int namelen)
 {
 	xfs_dahash_t hash;
 

fs/xfs/xfs_da_btree.h

@@ -168,7 +168,7 @@ int xfs_da_cookie_entry(struct xfs_mount *mp, xfs_off_t cookie);
  * Structure to ease passing around component names.
  */
 typedef struct xfs_da_args {
-	uchar_t		*name;		/* string (maybe not NULL terminated) */
+	const uchar_t	*name;		/* string (maybe not NULL terminated) */
 	int		namelen;	/* length of string (maybe no NULL) */
 	uchar_t		*value;		/* set of bytes (maybe contain NULLs) */
 	int		valuelen;	/* length of value */
@@ -314,7 +314,7 @@ xfs_daddr_t	xfs_da_reada_buf(struct xfs_trans *trans, struct xfs_inode *dp,
 int	xfs_da_shrink_inode(xfs_da_args_t *args, xfs_dablk_t dead_blkno,
 					  xfs_dabuf_t *dead_buf);
 
-uint xfs_da_hashname(uchar_t *name_string, int name_length);
+uint xfs_da_hashname(const uchar_t *name_string, int name_length);
 uint xfs_da_log2_roundup(uint i);
 xfs_da_state_t *xfs_da_state_alloc(void);
 void xfs_da_state_free(xfs_da_state_t *state);