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, 10 insertions, 0 deletions

diff --git a/fs/inode.c b/fs/inode.c
index f643be565df8..e193cd592fa8 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -25,6 +25,7 @@
 #include <linux/fsnotify.h>
 #include <linux/mount.h>
 #include <linux/async.h>
+#include <linux/posix_acl.h>
 
 /*
  * This is needed for the following functions:
@@ -189,6 +190,9 @@ struct inode *inode_init_always(struct super_block *sb, struct inode *inode)
         }
         inode->i_private = NULL;
         inode->i_mapping = mapping;
+#ifdef CONFIG_FS_POSIX_ACL
+        inode->i_acl = inode->i_default_acl = ACL_NOT_CACHED;
+#endif
 
 #ifdef CONFIG_FSNOTIFY
         inode->i_fsnotify_mask = 0;
@@ -227,6 +231,12 @@ void destroy_inode(struct inode *inode)
         ima_inode_free(inode);
         security_inode_free(inode);
         fsnotify_inode_delete(inode);
+#ifdef CONFIG_FS_POSIX_ACL
+        if (inode->i_acl && inode->i_acl != ACL_NOT_CACHED)
+                posix_acl_release(inode->i_acl);
+        if (inode->i_default_acl && inode->i_default_acl != ACL_NOT_CACHED)
+                posix_acl_release(inode->i_default_acl);
+#endif
         if (inode->i_sb->s_op->destroy_inode)
                 inode->i_sb->s_op->destroy_inode(inode);
         else