X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=fs%2Fposix_acl.c;h=4adde1e2cbece693ebab67527a555e3a33e6fbfa;hb=c6362a1e3e428e101c0fc089b496f30e06b7e3c5;hp=4fb17ded7d4780d8d19e7c68cb1c7cedfeb79cf7;hpb=8d58b66ed2b000f27658c88a4ed70e8042e86a58;p=firefly-linux-kernel-4.4.55.git

diff --git a/fs/posix_acl.c b/fs/posix_acl.c
index 4fb17ded7d47..4adde1e2cbec 100644
--- a/fs/posix_acl.c
+++ b/fs/posix_acl.c
@@ -762,18 +762,21 @@ posix_acl_to_xattr(struct user_namespace *user_ns, const struct posix_acl *acl,
 EXPORT_SYMBOL (posix_acl_to_xattr);
 
 static int
-posix_acl_xattr_get(struct dentry *dentry, const char *name,
-		void *value, size_t size, int type)
+posix_acl_xattr_get(const struct xattr_handler *handler,
+		    struct dentry *dentry, const char *name,
+		    void *value, size_t size)
 {
 	struct posix_acl *acl;
 	int error;
 
+	if (strcmp(name, "") != 0)
+		return -EINVAL;
 	if (!IS_POSIXACL(d_backing_inode(dentry)))
 		return -EOPNOTSUPP;
 	if (d_is_symlink(dentry))
 		return -EOPNOTSUPP;
 
-	acl = get_acl(d_backing_inode(dentry), type);
+	acl = get_acl(d_backing_inode(dentry), handler->flags);
 	if (IS_ERR(acl))
 		return PTR_ERR(acl);
 	if (acl == NULL)
@@ -786,19 +789,22 @@ posix_acl_xattr_get(struct dentry *dentry, const char *name,
 }
 
 static int
-posix_acl_xattr_set(struct dentry *dentry, const char *name,
-		const void *value, size_t size, int flags, int type)
+posix_acl_xattr_set(const struct xattr_handler *handler,
+		    struct dentry *dentry, const char *name,
+		    const void *value, size_t size, int flags)
 {
 	struct inode *inode = d_backing_inode(dentry);
 	struct posix_acl *acl = NULL;
 	int ret;
 
+	if (strcmp(name, "") != 0)
+		return -EINVAL;
 	if (!IS_POSIXACL(inode))
 		return -EOPNOTSUPP;
 	if (!inode->i_op->set_acl)
 		return -EOPNOTSUPP;
 
-	if (type == ACL_TYPE_DEFAULT && !S_ISDIR(inode->i_mode))
+	if (handler->flags == ACL_TYPE_DEFAULT && !S_ISDIR(inode->i_mode))
 		return value ? -EACCES : 0;
 	if (!inode_owner_or_capable(inode))
 		return -EPERM;
@@ -815,28 +821,22 @@ posix_acl_xattr_set(struct dentry *dentry, const char *name,
 		}
 	}
 
-	ret = inode->i_op->set_acl(inode, acl, type);
+	ret = inode->i_op->set_acl(inode, acl, handler->flags);
 out:
 	posix_acl_release(acl);
 	return ret;
 }
 
 static size_t
-posix_acl_xattr_list(struct dentry *dentry, char *list, size_t list_size,
-		const char *name, size_t name_len, int type)
+posix_acl_xattr_list(const struct xattr_handler *handler,
+		     struct dentry *dentry, char *list, size_t list_size,
+		     const char *name, size_t name_len)
 {
-	const char *xname;
+	const char *xname = handler->prefix;
 	size_t size;
 
 	if (!IS_POSIXACL(d_backing_inode(dentry)))
-		return -EOPNOTSUPP;
-	if (d_is_symlink(dentry))
-		return -EOPNOTSUPP;
-
-	if (type == ACL_TYPE_ACCESS)
-		xname = POSIX_ACL_XATTR_ACCESS;
-	else
-		xname = POSIX_ACL_XATTR_DEFAULT;
+		return 0;
 
 	size = strlen(xname) + 1;
 	if (list && size <= list_size)