Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

[~andy/linux] / include / linux / posix_acl.h

diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h
index 7931efe7117553d00a920cfd4aef757f72578658..3e96a6a7610338ff8ddd825a21ddc9bc5fe52e8b 100644 (file)
--- a/include/linux/posix_acl.h
+++ b/include/linux/posix_acl.h
@@ -39,9 +39,6 @@ struct posix_acl_entry {
        union {
                kuid_t          e_uid;
                kgid_t          e_gid;
-#ifndef CONFIG_UIDGID_STRICT_TYPE_CHECKS
-               unsigned int    e_id;
-#endif
        };
 };
 
@@ -88,91 +85,60 @@ extern int posix_acl_valid(const struct posix_acl *);
 extern int posix_acl_permission(struct inode *, const struct posix_acl *, int);
 extern struct posix_acl *posix_acl_from_mode(umode_t, gfp_t);
 extern int posix_acl_equiv_mode(const struct posix_acl *, umode_t *);
-extern int posix_acl_create(struct posix_acl **, gfp_t, umode_t *);
-extern int posix_acl_chmod(struct posix_acl **, gfp_t, umode_t);
+extern int __posix_acl_create(struct posix_acl **, gfp_t, umode_t *);
+extern int __posix_acl_chmod(struct posix_acl **, gfp_t, umode_t);
 
 extern struct posix_acl *get_posix_acl(struct inode *, int);
 extern int set_posix_acl(struct inode *, int, struct posix_acl *);
 
 #ifdef CONFIG_FS_POSIX_ACL
-static inline struct posix_acl **acl_by_type(struct inode *inode, int type)
+extern int posix_acl_chmod(struct inode *, umode_t);
+extern int posix_acl_create(struct inode *, umode_t *, struct posix_acl **,
+               struct posix_acl **);
+
+extern int simple_set_acl(struct inode *, struct posix_acl *, int);
+extern int simple_acl_create(struct inode *, struct inode *);
+
+struct posix_acl **acl_by_type(struct inode *inode, int type);
+struct posix_acl *get_cached_acl(struct inode *inode, int type);
+struct posix_acl *get_cached_acl_rcu(struct inode *inode, int type);
+void set_cached_acl(struct inode *inode, int type, struct posix_acl *acl);
+void forget_cached_acl(struct inode *inode, int type);
+void forget_all_cached_acls(struct inode *inode);
+
+static inline void cache_no_acl(struct inode *inode)
 {
-       switch (type) {
-       case ACL_TYPE_ACCESS:
-               return &inode->i_acl;
-       case ACL_TYPE_DEFAULT:
-               return &inode->i_default_acl;
-       default:
-               BUG();
-       }
+       inode->i_acl = NULL;
+       inode->i_default_acl = NULL;
 }
-
-static inline struct posix_acl *get_cached_acl(struct inode *inode, int type)
+#else
+static inline int posix_acl_chmod(struct inode *inode, umode_t mode)
 {
-       struct posix_acl **p = acl_by_type(inode, type);
-       struct posix_acl *acl = ACCESS_ONCE(*p);
-       if (acl) {
-               spin_lock(&inode->i_lock);
-               acl = *p;
-               if (acl != ACL_NOT_CACHED)
-                       acl = posix_acl_dup(acl);
-               spin_unlock(&inode->i_lock);
-       }
-       return acl;
+       return 0;
 }
 
-static inline struct posix_acl *get_cached_acl_rcu(struct inode *inode, int type)
+#define simple_set_acl         NULL
+
+static inline int simple_acl_create(struct inode *dir, struct inode *inode)
 {
-       return rcu_dereference(*acl_by_type(inode, type));
+       return 0;
 }
-
-static inline void set_cached_acl(struct inode *inode,
-                                 int type,
-                                 struct posix_acl *acl)
+static inline void cache_no_acl(struct inode *inode)
 {
-       struct posix_acl **p = acl_by_type(inode, type);
-       struct posix_acl *old;
-       spin_lock(&inode->i_lock);
-       old = *p;
-       rcu_assign_pointer(*p, posix_acl_dup(acl));
-       spin_unlock(&inode->i_lock);
-       if (old != ACL_NOT_CACHED)
-               posix_acl_release(old);
 }
 
-static inline void forget_cached_acl(struct inode *inode, int type)
+static inline int posix_acl_create(struct inode *inode, umode_t *mode,
+               struct posix_acl **default_acl, struct posix_acl **acl)
 {
-       struct posix_acl **p = acl_by_type(inode, type);
-       struct posix_acl *old;
-       spin_lock(&inode->i_lock);
-       old = *p;
-       *p = ACL_NOT_CACHED;
-       spin_unlock(&inode->i_lock);
-       if (old != ACL_NOT_CACHED)
-               posix_acl_release(old);
+       *default_acl = *acl = NULL;
+       return 0;
 }
 
 static inline void forget_all_cached_acls(struct inode *inode)
 {
-       struct posix_acl *old_access, *old_default;
-       spin_lock(&inode->i_lock);
-       old_access = inode->i_acl;
-       old_default = inode->i_default_acl;
-       inode->i_acl = inode->i_default_acl = ACL_NOT_CACHED;
-       spin_unlock(&inode->i_lock);
-       if (old_access != ACL_NOT_CACHED)
-               posix_acl_release(old_access);
-       if (old_default != ACL_NOT_CACHED)
-               posix_acl_release(old_default);
 }
-#endif
+#endif /* CONFIG_FS_POSIX_ACL */
 
-static inline void cache_no_acl(struct inode *inode)
-{
-#ifdef CONFIG_FS_POSIX_ACL
-       inode->i_acl = NULL;
-       inode->i_default_acl = NULL;
-#endif
-}
+struct posix_acl *get_acl(struct inode *inode, int type);
 
 #endif  /* __LINUX_POSIX_ACL_H */