+
+#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
+struct posix_acl *
+nfsd_get_posix_acl(struct svc_fh *fhp, int type)
+{
+ struct inode *inode = fhp->fh_dentry->d_inode;
+ char *name;
+ void *value = NULL;
+ ssize_t size;
+ struct posix_acl *acl;
+
+ if (!IS_POSIXACL(inode))
+ return ERR_PTR(-EOPNOTSUPP);
+
+ switch (type) {
+ case ACL_TYPE_ACCESS:
+ name = POSIX_ACL_XATTR_ACCESS;
+ break;
+ case ACL_TYPE_DEFAULT:
+ name = POSIX_ACL_XATTR_DEFAULT;
+ break;
+ default:
+ return ERR_PTR(-EOPNOTSUPP);
+ }
+
+ size = nfsd_getxattr(fhp->fh_dentry, name, &value);
+ if (size < 0)
+ return ERR_PTR(size);
+
+ acl = posix_acl_from_xattr(value, size);
+ kfree(value);
+ return acl;
+}
+
+int
+nfsd_set_posix_acl(struct svc_fh *fhp, int type, struct posix_acl *acl)
+{
+ struct inode *inode = fhp->fh_dentry->d_inode;
+ char *name;
+ void *value = NULL;
+ size_t size;
+ int error;
+
+ if (!IS_POSIXACL(inode) || !inode->i_op ||
+ !inode->i_op->setxattr || !inode->i_op->removexattr)
+ return -EOPNOTSUPP;
+ switch(type) {
+ case ACL_TYPE_ACCESS:
+ name = POSIX_ACL_XATTR_ACCESS;
+ break;
+ case ACL_TYPE_DEFAULT:
+ name = POSIX_ACL_XATTR_DEFAULT;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ if (acl && acl->a_count) {
+ size = posix_acl_xattr_size(acl->a_count);
+ value = kmalloc(size, GFP_KERNEL);
+ if (!value)
+ return -ENOMEM;
+ error = posix_acl_to_xattr(acl, value, size);
+ if (error < 0)
+ goto getout;
+ size = error;
+ } else
+ size = 0;
+
+ if (size)
+ error = vfs_setxattr(fhp->fh_dentry, name, value, size, 0);
+ else {
+ if (!S_ISDIR(inode->i_mode) && type == ACL_TYPE_DEFAULT)
+ error = 0;
+ else {
+ error = vfs_removexattr(fhp->fh_dentry, name);
+ if (error == -ENODATA)
+ error = 0;
+ }
+ }
+
+getout:
+ kfree(value);
+ return error;
+}
+#endif /* defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL) */