-extern void xfs_error_report(char *tag, int level, struct xfs_mount *mp,
- char *fname, int linenum, inst_t *ra);
-extern void xfs_corruption_error(char *tag, int level, struct xfs_mount *mp,
- void *p, char *fname, int linenum, inst_t *ra);
+extern void xfs_error_report(const char *tag, int level, struct xfs_mount *mp,
+ const char *filename, int linenum, inst_t *ra);
+extern void xfs_corruption_error(const char *tag, int level,
+ struct xfs_mount *mp, void *p, const char *filename,
+ int linenum, inst_t *ra);