TOMOYO: Use common structure for list element.

Use common "struct list_head" + "bool" structure.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>

security/tomoyo/common.c

@@ -499,10 +499,10 @@ static int tomoyo_update_manager_entry(const char *manager,
 		return -ENOMEM;
 	if (mutex_lock_interruptible(&tomoyo_policy_lock))
 		goto out;
-	list_for_each_entry_rcu(ptr, &tomoyo_policy_manager_list, list) {
+	list_for_each_entry_rcu(ptr, &tomoyo_policy_manager_list, head.list) {
 		if (ptr->manager != e.manager)
 			continue;
-		ptr->is_deleted = is_delete;
+		ptr->head.is_deleted = is_delete;
 		error = 0;
 		break;
 	}
@@ -510,7 +510,7 @@ static int tomoyo_update_manager_entry(const char *manager,
 		struct tomoyo_policy_manager_entry *entry =
 			tomoyo_commit_ok(&e, sizeof(e));
 		if (entry) {
-			list_add_tail_rcu(&entry->list,
+			list_add_tail_rcu(&entry->head.list,
 					  &tomoyo_policy_manager_list);
 			error = 0;
 		}
@@ -562,8 +562,8 @@ static int tomoyo_read_manager_policy(struct tomoyo_io_buffer *head)
 			     &tomoyo_policy_manager_list) {
 		struct tomoyo_policy_manager_entry *ptr;
 		ptr = list_entry(pos, struct tomoyo_policy_manager_entry,
-				 list);
-		if (ptr->is_deleted)
+				 head.list);
+		if (ptr->head.is_deleted)
 			continue;
 		done = tomoyo_io_printf(head, "%s\n", ptr->manager->name);
 		if (!done)
@@ -593,8 +593,8 @@ static bool tomoyo_is_policy_manager(void)
 		return true;
 	if (!tomoyo_manage_by_non_root && (task->cred->uid || task->cred->euid))
 		return false;
-	list_for_each_entry_rcu(ptr, &tomoyo_policy_manager_list, list) {
-		if (!ptr->is_deleted && ptr->is_domain
+	list_for_each_entry_rcu(ptr, &tomoyo_policy_manager_list, head.list) {
+		if (!ptr->head.is_deleted && ptr->is_domain
 		    && !tomoyo_pathcmp(domainname, ptr->manager)) {
 			found = true;
 			break;
@@ -605,8 +605,8 @@ static bool tomoyo_is_policy_manager(void)
 	exe = tomoyo_get_exe();
 	if (!exe)
 		return false;
-	list_for_each_entry_rcu(ptr, &tomoyo_policy_manager_list, list) {
-		if (!ptr->is_deleted && !ptr->is_domain
+	list_for_each_entry_rcu(ptr, &tomoyo_policy_manager_list, head.list) {
+		if (!ptr->head.is_deleted && !ptr->is_domain
 		    && !strcmp(exe, ptr->manager->name)) {
 			found = true;
 			break;

security/tomoyo/common.h

@@ -188,6 +188,20 @@ enum tomoyo_mac_category_index {
 
 /********** Structure definitions. **********/
 
+/*
+ * tomoyo_acl_head is a structure which is used for holding elements not in
+ * domain policy.
+ * It has following fields.
+ *
+ *  (1) "list" which is linked to tomoyo_policy_list[] .
+ *  (2) "is_deleted" is a bool which is true if marked as deleted, false
+ *      otherwise.
+ */
+struct tomoyo_acl_head {
+	struct list_head list;
+	bool is_deleted;
+} __packed;
+
 /*
  * tomoyo_request_info is a structure which is used for holding
  *
@@ -274,15 +288,13 @@ struct tomoyo_number_group {
 
 /* Structure for "path_group" directive. */
 struct tomoyo_path_group_member {
-	struct list_head list;
-	bool is_deleted;
+	struct tomoyo_acl_head head;
 	const struct tomoyo_path_info *member_name;
 };
 
 /* Structure for "number_group" directive. */
 struct tomoyo_number_group_member {
-	struct list_head list;
-	bool is_deleted;
+	struct tomoyo_acl_head head;
 	struct tomoyo_number_union number;
 };
 
@@ -523,15 +535,12 @@ struct tomoyo_io_buffer {
  * "allow_read" entries.
  * It has following fields.
  *
- *  (1) "list" which is linked to tomoyo_globally_readable_list .
+ *  (1) "head" is "struct tomoyo_acl_head".
  *  (2) "filename" is a pathname which is allowed to open(O_RDONLY).
- *  (3) "is_deleted" is a bool which is true if marked as deleted, false
- *      otherwise.
  */
 struct tomoyo_globally_readable_file_entry {
-	struct list_head list;
+	struct tomoyo_acl_head head;
 	const struct tomoyo_path_info *filename;
-	bool is_deleted;
 };
 
 /*
@@ -539,16 +548,13 @@ struct tomoyo_globally_readable_file_entry {
  * "tomoyo_pattern_list" entries.
  * It has following fields.
  *
- *  (1) "list" which is linked to tomoyo_pattern_list .
+ *  (1) "head" is "struct tomoyo_acl_head".
  *  (2) "pattern" is a pathname pattern which is used for converting pathnames
  *      to pathname patterns during learning mode.
- *  (3) "is_deleted" is a bool which is true if marked as deleted, false
- *      otherwise.
  */
 struct tomoyo_pattern_entry {
-	struct list_head list;
+	struct tomoyo_acl_head head;
 	const struct tomoyo_path_info *pattern;
-	bool is_deleted;
 };
 
 /*
@@ -556,16 +562,13 @@ struct tomoyo_pattern_entry {
  * "deny_rewrite" entries.
  * It has following fields.
  *
- *  (1) "list" which is linked to tomoyo_no_rewrite_list .
+ *  (1) "head" is "struct tomoyo_acl_head".
  *  (2) "pattern" is a pathname which is by default not permitted to modify
  *      already existing content.
- *  (3) "is_deleted" is a bool which is true if marked as deleted, false
- *      otherwise.
  */
 struct tomoyo_no_rewrite_entry {
-	struct list_head list;
+	struct tomoyo_acl_head head;
 	const struct tomoyo_path_info *pattern;
-	bool is_deleted;
 };
 
 /*
@@ -573,25 +576,22 @@ struct tomoyo_no_rewrite_entry {
  * "initialize_domain" and "no_initialize_domain" entries.
  * It has following fields.
  *
- *  (1) "list" which is linked to tomoyo_domain_initializer_list .
- *  (2) "domainname" which is "a domainname" or "the last component of a
- *      domainname". This field is NULL if "from" clause is not specified.
- *  (3) "program" which is a program's pathname.
- *  (4) "is_deleted" is a bool which is true if marked as deleted, false
+ *  (1) "head" is "struct tomoyo_acl_head".
+ *  (2) "is_not" is a bool which is true if "no_initialize_domain", false
  *      otherwise.
- *  (5) "is_not" is a bool which is true if "no_initialize_domain", false
- *      otherwise.
- *  (6) "is_last_name" is a bool which is true if "domainname" is "the last
+ *  (3) "is_last_name" is a bool which is true if "domainname" is "the last
  *      component of a domainname", false otherwise.
+ *  (4) "domainname" which is "a domainname" or "the last component of a
+ *      domainname". This field is NULL if "from" clause is not specified.
+ *  (5) "program" which is a program's pathname.
  */
 struct tomoyo_domain_initializer_entry {
-	struct list_head list;
-	const struct tomoyo_path_info *domainname;    /* This may be NULL */
-	const struct tomoyo_path_info *program;
-	bool is_deleted;
+	struct tomoyo_acl_head head;
 	bool is_not;       /* True if this entry is "no_initialize_domain".  */
 	/* True if the domainname is tomoyo_get_last_name(). */
 	bool is_last_name;
+	const struct tomoyo_path_info *domainname;    /* This may be NULL */
+	const struct tomoyo_path_info *program;
 };
 
 /*
@@ -599,26 +599,23 @@ struct tomoyo_domain_initializer_entry {
  * "keep_domain" and "no_keep_domain" entries.
  * It has following fields.
  *
- *  (1) "list" which is linked to tomoyo_domain_keeper_list .
- *  (2) "domainname" which is "a domainname" or "the last component of a
- *      domainname".
- *  (3) "program" which is a program's pathname.
- *      This field is NULL if "from" clause is not specified.
- *  (4) "is_deleted" is a bool which is true if marked as deleted, false
+ *  (1) "head" is "struct tomoyo_acl_head".
+ *  (2) "is_not" is a bool which is true if "no_initialize_domain", false
  *      otherwise.
- *  (5) "is_not" is a bool which is true if "no_initialize_domain", false
- *      otherwise.
- *  (6) "is_last_name" is a bool which is true if "domainname" is "the last
+ *  (3) "is_last_name" is a bool which is true if "domainname" is "the last
  *      component of a domainname", false otherwise.
+ *  (4) "domainname" which is "a domainname" or "the last component of a
+ *      domainname".
+ *  (5) "program" which is a program's pathname.
+ *      This field is NULL if "from" clause is not specified.
  */
 struct tomoyo_domain_keeper_entry {
-	struct list_head list;
-	const struct tomoyo_path_info *domainname;
-	const struct tomoyo_path_info *program;       /* This may be NULL */
-	bool is_deleted;
+	struct tomoyo_acl_head head;
 	bool is_not;       /* True if this entry is "no_keep_domain".        */
 	/* True if the domainname is tomoyo_get_last_name(). */
 	bool is_last_name;
+	const struct tomoyo_path_info *domainname;
+	const struct tomoyo_path_info *program;       /* This may be NULL */
 };
 
 /*
@@ -626,34 +623,28 @@ struct tomoyo_domain_keeper_entry {
  * "aggregator" entries.
  * It has following fields.
  *
- *  (1) "list" which is linked to tomoyo_aggregator_list .
+ *  (1) "head" is "struct tomoyo_acl_head".
  *  (2) "original_name" which is originally requested name.
  *  (3) "aggregated_name" which is name to rewrite.
- *  (4) "is_deleted" is a bool which is true if marked as deleted, false
- *      otherwise.
  */
 struct tomoyo_aggregator_entry {
-	struct list_head list;
+	struct tomoyo_acl_head head;
 	const struct tomoyo_path_info *original_name;
 	const struct tomoyo_path_info *aggregated_name;
-	bool is_deleted;
 };
 
 /*
  * tomoyo_alias_entry is a structure which is used for holding "alias" entries.
  * It has following fields.
  *
- *  (1) "list" which is linked to tomoyo_alias_list .
+ *  (1) "head" is "struct tomoyo_acl_head".
  *  (2) "original_name" which is a dereferenced pathname.
  *  (3) "aliased_name" which is a symlink's pathname.
- *  (4) "is_deleted" is a bool which is true if marked as deleted, false
- *      otherwise.
  */
 struct tomoyo_alias_entry {
-	struct list_head list;
+	struct tomoyo_acl_head head;
 	const struct tomoyo_path_info *original_name;
 	const struct tomoyo_path_info *aliased_name;
-	bool is_deleted;
 };
 
 /*
@@ -662,19 +653,16 @@ struct tomoyo_alias_entry {
  * /sys/kernel/security/tomoyo/ interface.
  * It has following fields.
  *
- *  (1) "list" which is linked to tomoyo_policy_manager_list .
- *  (2) "manager" is a domainname or a program's pathname.
- *  (3) "is_domain" is a bool which is true if "manager" is a domainname, false
- *      otherwise.
- *  (4) "is_deleted" is a bool which is true if marked as deleted, false
+ *  (1) "head" is "struct tomoyo_acl_head".
+ *  (2) "is_domain" is a bool which is true if "manager" is a domainname, false
  *      otherwise.
+ *  (3) "manager" is a domainname or a program's pathname.
  */
 struct tomoyo_policy_manager_entry {
-	struct list_head list;
+	struct tomoyo_acl_head head;
+	bool is_domain;  /* True if manager is a domainname. */
 	/* A path to program or a domainname. */
 	const struct tomoyo_path_info *manager;
-	bool is_domain;  /* True if manager is a domainname. */
-	bool is_deleted; /* True if this entry is deleted. */
 };
 
 struct tomoyo_preference {

security/tomoyo/domain.c

@@ -199,10 +199,11 @@ static int tomoyo_update_domain_initializer_entry(const char *domainname,
 		goto out;
 	if (mutex_lock_interruptible(&tomoyo_policy_lock))
 		goto out;
-	list_for_each_entry_rcu(ptr, &tomoyo_domain_initializer_list, list) {
+	list_for_each_entry_rcu(ptr, &tomoyo_domain_initializer_list,
+				head.list) {
 		if (!tomoyo_is_same_domain_initializer_entry(ptr, &e))
 			continue;
-		ptr->is_deleted = is_delete;
+		ptr->head.is_deleted = is_delete;
 		error = 0;
 		break;
 	}
@@ -210,7 +211,7 @@ static int tomoyo_update_domain_initializer_entry(const char *domainname,
 		struct tomoyo_domain_initializer_entry *entry =
 			tomoyo_commit_ok(&e, sizeof(e));
 		if (entry) {
-			list_add_tail_rcu(&entry->list,
+			list_add_tail_rcu(&entry->head.list,
 					  &tomoyo_domain_initializer_list);
 			error = 0;
 		}
@@ -243,8 +244,8 @@ bool tomoyo_read_domain_initializer_policy(struct tomoyo_io_buffer *head)
 		const char *domain = "";
 		struct tomoyo_domain_initializer_entry *ptr;
 		ptr = list_entry(pos, struct tomoyo_domain_initializer_entry,
-				  list);
-		if (ptr->is_deleted)
+				 head.list);
+		if (ptr->head.is_deleted)
 			continue;
 		no = ptr->is_not ? "no_" : "";
 		if (ptr->domainname) {
@@ -308,8 +309,9 @@ static bool tomoyo_is_domain_initializer(const struct tomoyo_path_info *
 	struct tomoyo_domain_initializer_entry *ptr;
 	bool flag = false;
 
-	list_for_each_entry_rcu(ptr, &tomoyo_domain_initializer_list, list) {
-		if (ptr->is_deleted)
+	list_for_each_entry_rcu(ptr, &tomoyo_domain_initializer_list,
+				head.list) {
+		if (ptr->head.is_deleted)
 			continue;
 		if (ptr->domainname) {
 			if (!ptr->is_last_name) {
@@ -409,10 +411,10 @@ static int tomoyo_update_domain_keeper_entry(const char *domainname,
 		goto out;
 	if (mutex_lock_interruptible(&tomoyo_policy_lock))
 		goto out;
-	list_for_each_entry_rcu(ptr, &tomoyo_domain_keeper_list, list) {
+	list_for_each_entry_rcu(ptr, &tomoyo_domain_keeper_list, head.list) {
 		if (!tomoyo_is_same_domain_keeper_entry(ptr, &e))
 			continue;
-		ptr->is_deleted = is_delete;
+		ptr->head.is_deleted = is_delete;
 		error = 0;
 		break;
 	}
@@ -420,7 +422,7 @@ static int tomoyo_update_domain_keeper_entry(const char *domainname,
 		struct tomoyo_domain_keeper_entry *entry =
 			tomoyo_commit_ok(&e, sizeof(e));
 		if (entry) {
-			list_add_tail_rcu(&entry->list,
+			list_add_tail_rcu(&entry->head.list,
 					  &tomoyo_domain_keeper_list);
 			error = 0;
 		}
@@ -475,8 +477,9 @@ bool tomoyo_read_domain_keeper_policy(struct tomoyo_io_buffer *head)
 		const char *from = "";
 		const char *program = "";
 
-		ptr = list_entry(pos, struct tomoyo_domain_keeper_entry, list);
-		if (ptr->is_deleted)
+		ptr = list_entry(pos, struct tomoyo_domain_keeper_entry,
+				 head.list);
+		if (ptr->head.is_deleted)
 			continue;
 		no = ptr->is_not ? "no_" : "";
 		if (ptr->program) {
@@ -512,8 +515,8 @@ static bool tomoyo_is_domain_keeper(const struct tomoyo_path_info *domainname,
 	struct tomoyo_domain_keeper_entry *ptr;
 	bool flag = false;
 
-	list_for_each_entry_rcu(ptr, &tomoyo_domain_keeper_list, list) {
-		if (ptr->is_deleted)
+	list_for_each_entry_rcu(ptr, &tomoyo_domain_keeper_list, head.list) {
+		if (ptr->head.is_deleted)
 			continue;
 		if (!ptr->is_last_name) {
 			if (ptr->domainname != domainname)
@@ -591,10 +594,10 @@ static int tomoyo_update_aggregator_entry(const char *original_name,
 		goto out;
 	if (mutex_lock_interruptible(&tomoyo_policy_lock))
 		goto out;
-	list_for_each_entry_rcu(ptr, &tomoyo_aggregator_list, list) {
+	list_for_each_entry_rcu(ptr, &tomoyo_aggregator_list, head.list) {
 		if (!tomoyo_is_same_aggregator_entry(ptr, &e))
 			continue;
-		ptr->is_deleted = is_delete;
+		ptr->head.is_deleted = is_delete;
 		error = 0;
 		break;
 	}
@@ -602,7 +605,7 @@ static int tomoyo_update_aggregator_entry(const char *original_name,
 		struct tomoyo_aggregator_entry *entry =
 			tomoyo_commit_ok(&e, sizeof(e));
 		if (entry) {
-			list_add_tail_rcu(&entry->list,
+			list_add_tail_rcu(&entry->head.list,
 					  &tomoyo_aggregator_list);
 			error = 0;
 		}
@@ -631,8 +634,9 @@ bool tomoyo_read_aggregator_policy(struct tomoyo_io_buffer *head)
 	list_for_each_cookie(pos, head->read_var2, &tomoyo_aggregator_list) {
 		struct tomoyo_aggregator_entry *ptr;
 
-		ptr = list_entry(pos, struct tomoyo_aggregator_entry, list);
-		if (ptr->is_deleted)
+		ptr = list_entry(pos, struct tomoyo_aggregator_entry,
+				 head.list);
+		if (ptr->head.is_deleted)
 			continue;
 		done = tomoyo_io_printf(head, TOMOYO_KEYWORD_AGGREGATOR
 					"%s %s\n", ptr->original_name->name,
@@ -724,10 +728,10 @@ static int tomoyo_update_alias_entry(const char *original_name,
 		goto out; /* No patterns allowed. */
 	if (mutex_lock_interruptible(&tomoyo_policy_lock))
 		goto out;
-	list_for_each_entry_rcu(ptr, &tomoyo_alias_list, list) {
+	list_for_each_entry_rcu(ptr, &tomoyo_alias_list, head.list) {
 		if (!tomoyo_is_same_alias_entry(ptr, &e))
 			continue;
-		ptr->is_deleted = is_delete;
+		ptr->head.is_deleted = is_delete;
 		error = 0;
 		break;
 	}
@@ -735,7 +739,8 @@ static int tomoyo_update_alias_entry(const char *original_name,
 		struct tomoyo_alias_entry *entry =
 			tomoyo_commit_ok(&e, sizeof(e));
 		if (entry) {
-			list_add_tail_rcu(&entry->list, &tomoyo_alias_list);
+			list_add_tail_rcu(&entry->head.list,
+					  &tomoyo_alias_list);
 			error = 0;
 		}
 	}
@@ -763,8 +768,8 @@ bool tomoyo_read_alias_policy(struct tomoyo_io_buffer *head)
 	list_for_each_cookie(pos, head->read_var2, &tomoyo_alias_list) {
 		struct tomoyo_alias_entry *ptr;
 
-		ptr = list_entry(pos, struct tomoyo_alias_entry, list);
-		if (ptr->is_deleted)
+		ptr = list_entry(pos, struct tomoyo_alias_entry, head.list);
+		if (ptr->head.is_deleted)
 			continue;
 		done = tomoyo_io_printf(head, TOMOYO_KEYWORD_ALIAS "%s %s\n",
 					ptr->original_name->name,
@@ -901,8 +906,8 @@ int tomoyo_find_next_domain(struct linux_binprm *bprm)
 	if (tomoyo_pathcmp(&rn, &sn)) {
 		struct tomoyo_alias_entry *ptr;
 		/* Is this program allowed to be called via symbolic links? */
-		list_for_each_entry_rcu(ptr, &tomoyo_alias_list, list) {
-			if (ptr->is_deleted ||
+		list_for_each_entry_rcu(ptr, &tomoyo_alias_list, head.list) {
+			if (ptr->head.is_deleted ||
 			    tomoyo_pathcmp(&rn, ptr->original_name) ||
 			    tomoyo_pathcmp(&sn, ptr->aliased_name))
 				continue;
@@ -917,8 +922,9 @@ int tomoyo_find_next_domain(struct linux_binprm *bprm)
 	/* Check 'aggregator' directive. */
 	{
 		struct tomoyo_aggregator_entry *ptr;
-		list_for_each_entry_rcu(ptr, &tomoyo_aggregator_list, list) {
-			if (ptr->is_deleted ||
+		list_for_each_entry_rcu(ptr, &tomoyo_aggregator_list,
+					head.list) {
+			if (ptr->head.is_deleted ||
 			    !tomoyo_path_matches_pattern(&rn,
 							 ptr->original_name))
 				continue;

security/tomoyo/file.c

@@ -277,10 +277,11 @@ static int tomoyo_update_globally_readable_entry(const char *filename,
 		return -ENOMEM;
 	if (mutex_lock_interruptible(&tomoyo_policy_lock))
 		goto out;
-	list_for_each_entry_rcu(ptr, &tomoyo_globally_readable_list, list) {
+	list_for_each_entry_rcu(ptr, &tomoyo_globally_readable_list,
+				head.list) {
 		if (ptr->filename != e.filename)
 			continue;
-		ptr->is_deleted = is_delete;
+		ptr->head.is_deleted = is_delete;
 		error = 0;
 		break;
 	}
@@ -288,7 +289,7 @@ static int tomoyo_update_globally_readable_entry(const char *filename,
 		struct tomoyo_globally_readable_file_entry *entry =
 			tomoyo_commit_ok(&e, sizeof(e));
 		if (entry) {
-			list_add_tail_rcu(&entry->list,
+			list_add_tail_rcu(&entry->head.list,
 					  &tomoyo_globally_readable_list);
 			error = 0;
 		}
@@ -314,8 +315,9 @@ static bool tomoyo_is_globally_readable_file(const struct tomoyo_path_info *
 	struct tomoyo_globally_readable_file_entry *ptr;
 	bool found = false;
 
-	list_for_each_entry_rcu(ptr, &tomoyo_globally_readable_list, list) {
-		if (!ptr->is_deleted &&
+	list_for_each_entry_rcu(ptr, &tomoyo_globally_readable_list,
+				head.list) {
+		if (!ptr->head.is_deleted &&
 		    tomoyo_path_matches_pattern(filename, ptr->filename)) {
 			found = true;
 			break;
@@ -358,8 +360,8 @@ bool tomoyo_read_globally_readable_policy(struct tomoyo_io_buffer *head)
 		struct tomoyo_globally_readable_file_entry *ptr;
 		ptr = list_entry(pos,
 				 struct tomoyo_globally_readable_file_entry,
-				 list);
-		if (ptr->is_deleted)
+				 head.list);
+		if (ptr->head.is_deleted)
 			continue;
 		done = tomoyo_io_printf(head, TOMOYO_KEYWORD_ALLOW_READ "%s\n",
 					ptr->filename->name);
@@ -424,10 +426,10 @@ static int tomoyo_update_file_pattern_entry(const char *pattern,
 		return error;
 	if (mutex_lock_interruptible(&tomoyo_policy_lock))
 		goto out;
-	list_for_each_entry_rcu(ptr, &tomoyo_pattern_list, list) {
+	list_for_each_entry_rcu(ptr, &tomoyo_pattern_list, head.list) {
 		if (e.pattern != ptr->pattern)
 			continue;
-		ptr->is_deleted = is_delete;
+		ptr->head.is_deleted = is_delete;
 		error = 0;
 		break;
 	}
@@ -435,7 +437,8 @@ static int tomoyo_update_file_pattern_entry(const char *pattern,
 		struct tomoyo_pattern_entry *entry =
 			tomoyo_commit_ok(&e, sizeof(e));
 		if (entry) {
-			list_add_tail_rcu(&entry->list, &tomoyo_pattern_list);
+			list_add_tail_rcu(&entry->head.list,
+					  &tomoyo_pattern_list);
 			error = 0;
 		}
 	}
@@ -459,8 +462,8 @@ const char *tomoyo_file_pattern(const struct tomoyo_path_info *filename)
 	struct tomoyo_pattern_entry *ptr;
 	const struct tomoyo_path_info *pattern = NULL;
 
-	list_for_each_entry_rcu(ptr, &tomoyo_pattern_list, list) {
-		if (ptr->is_deleted)
+	list_for_each_entry_rcu(ptr, &tomoyo_pattern_list, head.list) {
+		if (ptr->head.is_deleted)
 			continue;
 		if (!tomoyo_path_matches_pattern(filename, ptr->pattern))
 			continue;
@@ -508,8 +511,8 @@ bool tomoyo_read_file_pattern(struct tomoyo_io_buffer *head)
 
 	list_for_each_cookie(pos, head->read_var2, &tomoyo_pattern_list) {
 		struct tomoyo_pattern_entry *ptr;
-		ptr = list_entry(pos, struct tomoyo_pattern_entry, list);
-		if (ptr->is_deleted)
+		ptr = list_entry(pos, struct tomoyo_pattern_entry, head.list);
+		if (ptr->head.is_deleted)
 			continue;
 		done = tomoyo_io_printf(head, TOMOYO_KEYWORD_FILE_PATTERN
 					"%s\n", ptr->pattern->name);
@@ -574,10 +577,10 @@ static int tomoyo_update_no_rewrite_entry(const char *pattern,
 		return error;
 	if (mutex_lock_interruptible(&tomoyo_policy_lock))
 		goto out;
-	list_for_each_entry_rcu(ptr, &tomoyo_no_rewrite_list, list) {
+	list_for_each_entry_rcu(ptr, &tomoyo_no_rewrite_list, head.list) {
 		if (ptr->pattern != e.pattern)
 			continue;
-		ptr->is_deleted = is_delete;
+		ptr->head.is_deleted = is_delete;
 		error = 0;
 		break;
 	}
@@ -585,7 +588,7 @@ static int tomoyo_update_no_rewrite_entry(const char *pattern,
 		struct tomoyo_no_rewrite_entry *entry =
 			tomoyo_commit_ok(&e, sizeof(e));
 		if (entry) {
-			list_add_tail_rcu(&entry->list,
+			list_add_tail_rcu(&entry->head.list,
 					  &tomoyo_no_rewrite_list);
 			error = 0;
 		}
@@ -611,8 +614,8 @@ static bool tomoyo_is_no_rewrite_file(const struct tomoyo_path_info *filename)
 	struct tomoyo_no_rewrite_entry *ptr;
 	bool found = false;
 
-	list_for_each_entry_rcu(ptr, &tomoyo_no_rewrite_list, list) {
-		if (ptr->is_deleted)
+	list_for_each_entry_rcu(ptr, &tomoyo_no_rewrite_list, head.list) {
+		if (ptr->head.is_deleted)
 			continue;
 		if (!tomoyo_path_matches_pattern(filename, ptr->pattern))
 			continue;
@@ -653,8 +656,9 @@ bool tomoyo_read_no_rewrite_policy(struct tomoyo_io_buffer *head)
 
 	list_for_each_cookie(pos, head->read_var2, &tomoyo_no_rewrite_list) {
 		struct tomoyo_no_rewrite_entry *ptr;
-		ptr = list_entry(pos, struct tomoyo_no_rewrite_entry, list);
-		if (ptr->is_deleted)
+		ptr = list_entry(pos, struct tomoyo_no_rewrite_entry,
+				 head.list);
+		if (ptr->head.is_deleted)
 			continue;
 		done = tomoyo_io_printf(head, TOMOYO_KEYWORD_DENY_REWRITE
 					"%s\n", ptr->pattern->name);

security/tomoyo/gc.c

@@ -216,33 +216,34 @@ static void tomoyo_collect_entry(void)
 	{
 		struct tomoyo_globally_readable_file_entry *ptr;
 		list_for_each_entry_rcu(ptr, &tomoyo_globally_readable_list,
-					list) {
-			if (!ptr->is_deleted)
+					head.list) {
+			if (!ptr->head.is_deleted)
 				continue;
 			if (tomoyo_add_to_gc(TOMOYO_ID_GLOBALLY_READABLE, ptr))
-				list_del_rcu(&ptr->list);
+				list_del_rcu(&ptr->head.list);
 			else
 				break;
 		}
 	}
 	{
 		struct tomoyo_pattern_entry *ptr;
-		list_for_each_entry_rcu(ptr, &tomoyo_pattern_list, list) {
-			if (!ptr->is_deleted)
+		list_for_each_entry_rcu(ptr, &tomoyo_pattern_list, head.list) {
+			if (!ptr->head.is_deleted)
 				continue;
 			if (tomoyo_add_to_gc(TOMOYO_ID_PATTERN, ptr))
-				list_del_rcu(&ptr->list);
+				list_del_rcu(&ptr->head.list);
 			else
 				break;
 		}
 	}
 	{
 		struct tomoyo_no_rewrite_entry *ptr;
-		list_for_each_entry_rcu(ptr, &tomoyo_no_rewrite_list, list) {
-			if (!ptr->is_deleted)
+		list_for_each_entry_rcu(ptr, &tomoyo_no_rewrite_list,
+					head.list) {
+			if (!ptr->head.is_deleted)
 				continue;
 			if (tomoyo_add_to_gc(TOMOYO_ID_NO_REWRITE, ptr))
-				list_del_rcu(&ptr->list);
+				list_del_rcu(&ptr->head.list);
 			else
 				break;
 		}
@@ -250,44 +251,46 @@ static void tomoyo_collect_entry(void)
 	{
 		struct tomoyo_domain_initializer_entry *ptr;
 		list_for_each_entry_rcu(ptr, &tomoyo_domain_initializer_list,
-					list) {
-			if (!ptr->is_deleted)
+					head.list) {
+			if (!ptr->head.is_deleted)
 				continue;
 			if (tomoyo_add_to_gc(TOMOYO_ID_DOMAIN_INITIALIZER, ptr))
-				list_del_rcu(&ptr->list);
+				list_del_rcu(&ptr->head.list);
 			else
 				break;
 		}
 	}
 	{
 		struct tomoyo_domain_keeper_entry *ptr;
-		list_for_each_entry_rcu(ptr, &tomoyo_domain_keeper_list, list) {
-			if (!ptr->is_deleted)
+		list_for_each_entry_rcu(ptr, &tomoyo_domain_keeper_list,
+					head.list) {
+			if (!ptr->head.is_deleted)
 				continue;
 			if (tomoyo_add_to_gc(TOMOYO_ID_DOMAIN_KEEPER, ptr))
-				list_del_rcu(&ptr->list);
+				list_del_rcu(&ptr->head.list);
 			else
 				break;
 		}
 	}
 	{
 		struct tomoyo_aggregator_entry *ptr;
-		list_for_each_entry_rcu(ptr, &tomoyo_aggregator_list, list) {
-			if (!ptr->is_deleted)
+		list_for_each_entry_rcu(ptr, &tomoyo_aggregator_list,
+					head.list) {
+			if (!ptr->head.is_deleted)
 				continue;
 			if (tomoyo_add_to_gc(TOMOYO_ID_AGGREGATOR, ptr))
-				list_del_rcu(&ptr->list);
+				list_del_rcu(&ptr->head.list);
 			else
 				break;
 		}
 	}
 	{
 		struct tomoyo_alias_entry *ptr;
-		list_for_each_entry_rcu(ptr, &tomoyo_alias_list, list) {
-			if (!ptr->is_deleted)
+		list_for_each_entry_rcu(ptr, &tomoyo_alias_list, head.list) {
+			if (!ptr->head.is_deleted)
 				continue;
 			if (tomoyo_add_to_gc(TOMOYO_ID_ALIAS, ptr))
-				list_del_rcu(&ptr->list);
+				list_del_rcu(&ptr->head.list);
 			else
 				break;
 		}
@@ -295,11 +298,11 @@ static void tomoyo_collect_entry(void)
 	{
 		struct tomoyo_policy_manager_entry *ptr;
 		list_for_each_entry_rcu(ptr, &tomoyo_policy_manager_list,
-					list) {
-			if (!ptr->is_deleted)
+					head.list) {
+			if (!ptr->head.is_deleted)
 				continue;
 			if (tomoyo_add_to_gc(TOMOYO_ID_MANAGER, ptr))
-				list_del_rcu(&ptr->list);
+				list_del_rcu(&ptr->head.list);
 			else
 				break;
 		}
@@ -352,12 +355,12 @@ static void tomoyo_collect_entry(void)
 		list_for_each_entry_rcu(group, &tomoyo_path_group_list, list) {
 			struct tomoyo_path_group_member *member;
 			list_for_each_entry_rcu(member, &group->member_list,
-						list) {
-				if (!member->is_deleted)
+						head.list) {
+				if (!member->head.is_deleted)
 					continue;
 				if (tomoyo_add_to_gc(TOMOYO_ID_PATH_GROUP_MEMBER,
 						     member))
-					list_del_rcu(&member->list);
+					list_del_rcu(&member->head.list);
 				else
 					break;
 			}
@@ -375,12 +378,12 @@ static void tomoyo_collect_entry(void)
 		list_for_each_entry_rcu(group, &tomoyo_number_group_list, list) {
 			struct tomoyo_number_group_member *member;
 			list_for_each_entry_rcu(member, &group->member_list,
-						list) {
-				if (!member->is_deleted)
+						head.list) {
+				if (!member->head.is_deleted)
 					continue;
 				if (tomoyo_add_to_gc(TOMOYO_ID_NUMBER_GROUP_MEMBER,
 						     member))
-					list_del_rcu(&member->list);
+					list_del_rcu(&member->head.list);
 				else
 					break;
 			}

security/tomoyo/number_group.c

@@ -84,10 +84,10 @@ int tomoyo_write_number_group_policy(char *data, const bool is_delete)
 		return -ENOMEM;
 	if (mutex_lock_interruptible(&tomoyo_policy_lock))
 		goto out;
-	list_for_each_entry_rcu(member, &group->member_list, list) {
+	list_for_each_entry_rcu(member, &group->member_list, head.list) {
 		if (memcmp(&member->number, &e.number, sizeof(e.number)))
 			continue;
-		member->is_deleted = is_delete;
+		member->head.is_deleted = is_delete;
 		error = 0;
 		break;
 	}
@@ -95,7 +95,8 @@ int tomoyo_write_number_group_policy(char *data, const bool is_delete)
 		struct tomoyo_number_group_member *entry =
 			tomoyo_commit_ok(&e, sizeof(e));
 		if (entry) {
-			list_add_tail_rcu(&entry->list, &group->member_list);
+			list_add_tail_rcu(&entry->head.list,
+					  &group->member_list);
 			error = 0;
 		}
 	}
@@ -129,8 +130,8 @@ bool tomoyo_read_number_group_policy(struct tomoyo_io_buffer *head)
 			const struct tomoyo_number_group_member *member
 				= list_entry(mpos,
 					     struct tomoyo_number_group_member,
-					     list);
-			if (member->is_deleted)
+					     head.list);
+			if (member->head.is_deleted)
 				continue;
 			pos = head->read_avail;
 			if (!tomoyo_io_printf(head, TOMOYO_KEYWORD_NUMBER_GROUP
@@ -162,8 +163,8 @@ bool tomoyo_number_matches_group(const unsigned long min,
 {
 	struct tomoyo_number_group_member *member;
 	bool matched = false;
-	list_for_each_entry_rcu(member, &group->member_list, list) {
-		if (member->is_deleted)
+	list_for_each_entry_rcu(member, &group->member_list, head.list) {
+		if (member->head.is_deleted)
 			continue;
 		if (min > member->number.values[1] ||
 		    max < member->number.values[0])

security/tomoyo/path_group.c

@@ -79,10 +79,10 @@ int tomoyo_write_path_group_policy(char *data, const bool is_delete)
 		goto out;
 	if (mutex_lock_interruptible(&tomoyo_policy_lock))
 		goto out;
-	list_for_each_entry_rcu(member, &group->member_list, list) {
+	list_for_each_entry_rcu(member, &group->member_list, head.list) {
 		if (member->member_name != e.member_name)
 			continue;
-		member->is_deleted = is_delete;
+		member->head.is_deleted = is_delete;
 		error = 0;
 		break;
 	}
@@ -90,7 +90,8 @@ int tomoyo_write_path_group_policy(char *data, const bool is_delete)
 		struct tomoyo_path_group_member *entry =
 			tomoyo_commit_ok(&e, sizeof(e));
 		if (entry) {
-			list_add_tail_rcu(&entry->list, &group->member_list);
+			list_add_tail_rcu(&entry->head.list,
+					  &group->member_list);
 			error = 0;
 		}
 	}
@@ -122,8 +123,8 @@ bool tomoyo_read_path_group_policy(struct tomoyo_io_buffer *head)
 			struct tomoyo_path_group_member *member;
 			member = list_entry(mpos,
 					    struct tomoyo_path_group_member,
-					    list);
-			if (member->is_deleted)
+					    head.list);
+			if (member->head.is_deleted)
 				continue;
 			if (!tomoyo_io_printf(head, TOMOYO_KEYWORD_PATH_GROUP
 					      "%s %s\n",
@@ -150,8 +151,8 @@ bool tomoyo_path_matches_group(const struct tomoyo_path_info *pathname,
 {
 	struct tomoyo_path_group_member *member;
 	bool matched = false;
-	list_for_each_entry_rcu(member, &group->member_list, list) {
-		if (member->is_deleted)
+	list_for_each_entry_rcu(member, &group->member_list, head.list) {
+		if (member->head.is_deleted)
 			continue;
 		if (!tomoyo_path_matches_pattern(pathname,
 						 member->member_name))