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>

7 files changed, 167 insertions, 164 deletions

diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index 6556e5d27d74..7bfad45fcd61 100644
--- a/security/tomoyo/common.c
+++ b/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;
diff --git a/security/tomoyo/common.h b/security/tomoyo/common.h
index 539b9a28b739..0ab6e86f90aa 100644
--- a/security/tomoyo/common.h
+++ b/security/tomoyo/common.h
@@ -189,6 +189,20 @@ 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
  *
  * (1) Domain information of current process.
@@ -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 {
diff --git a/security/tomoyo/domain.c b/security/tomoyo/domain.c
index f774e73e0022..60297da6adcf 100644
--- a/security/tomoyo/domain.c
+++ b/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;
diff --git a/security/tomoyo/file.c b/security/tomoyo/file.c
index b826058c72e9..09436d11f298 100644
--- a/security/tomoyo/file.c
+++ b/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);
diff --git a/security/tomoyo/gc.c b/security/tomoyo/gc.c
index aed7ddd0de84..2dd9665af260 100644
--- a/security/tomoyo/gc.c
+++ b/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;
                         }
diff --git a/security/tomoyo/number_group.c b/security/tomoyo/number_group.c
index 8d6ef8f006ff..afc5b6972129 100644
--- a/security/tomoyo/number_group.c
+++ b/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])
diff --git a/security/tomoyo/path_group.c b/security/tomoyo/path_group.c
index 07e4f782367b..7838f7681297 100644
--- a/security/tomoyo/path_group.c
+++ b/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))