xfs: use generic posix ACL infrastructure

Also don't bother to set up a .get_acl method for symlinks as we do not
support access control (ACLs or even mode bits) for symlinks in Linux,
and create inodes with the proper mode instead of fixing it up later.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/xfs/xfs_acl.h

@@ -60,20 +60,15 @@ struct xfs_acl {
 
 #ifdef CONFIG_XFS_POSIX_ACL
 extern struct posix_acl *xfs_get_acl(struct inode *inode, int type);
-extern int xfs_inherit_acl(struct inode *inode, struct posix_acl *default_acl);
-extern int xfs_acl_chmod(struct inode *inode);
+extern int xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type);
 extern int posix_acl_access_exists(struct inode *inode);
 extern int posix_acl_default_exists(struct inode *inode);
-
-extern const struct xattr_handler xfs_xattr_acl_access_handler;
-extern const struct xattr_handler xfs_xattr_acl_default_handler;
 #else
 static inline struct posix_acl *xfs_get_acl(struct inode *inode, int type)
 {
 	return NULL;
 }
-# define xfs_inherit_acl(inode, default_acl)		0
-# define xfs_acl_chmod(inode)				0
+# define xfs_set_acl					NULL
 # define posix_acl_access_exists(inode)			0
 # define posix_acl_default_exists(inode)		0
 #endif /* CONFIG_XFS_POSIX_ACL */