add caching of ACLs in struct inode

No helpers, no conversions yet.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 79e302ddde0f..0872372184fe 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -710,6 +710,9 @@ static inline int mapping_writably_mapped(struct address_space *mapping)
 #define i_size_ordered_init(inode) do { } while (0)
 #endif
 
+struct posix_acl;
+#define ACL_NOT_CACHED ((void *)(-1))
+
 struct inode {
         struct hlist_node       i_hash;
         struct list_head        i_list;
@@ -773,6 +776,10 @@ struct inode {
 #ifdef CONFIG_SECURITY
         void                    *i_security;
 #endif
+#ifdef CONFIG_FS_POSIX_ACL
+        struct posix_acl        *i_acl;
+        struct posix_acl        *i_default_acl;
+#endif
         void                    *i_private; /* fs or device private pointer */
 };