Get "no acls for this inode" right, fix shmem breakage

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

4 files changed, 13 insertions, 10 deletions

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 78ad38ddd01f..dbe1aabf96cd 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -2122,10 +2122,8 @@ static void btrfs_read_locked_inode(struct inode *inode)
          * any xattrs or acls
          */
         maybe_acls = acls_after_inode_item(leaf, path->slots[0], inode->i_ino);
-        if (!maybe_acls) {
-                inode->i_acl = NULL;
-                inode->i_default_acl = NULL;
-        }
+        if (!maybe_acls)
+                cache_no_acl(inode);
 
         BTRFS_I(inode)->block_group = btrfs_find_block_group(root, 0,
                                                 alloc_group_block, 0);
diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c
index edd2ad6416d8..8fcb6239218e 100644
--- a/fs/jffs2/acl.c
+++ b/fs/jffs2/acl.c
@@ -284,8 +284,7 @@ int jffs2_init_acl_pre(struct inode *dir_i, struct inode *inode, int *i_mode)
         struct posix_acl *acl, *clone;
         int rc;
 
-        inode->i_default_acl = NULL;
-        inode->i_acl = NULL;
+        cache_no_acl(inode);
 
         if (S_ISLNK(*i_mode))
                 return 0;       /* Symlink always has no-ACL */
diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h
index c513466c7dc7..065a3652a3ea 100644
--- a/include/linux/posix_acl.h
+++ b/include/linux/posix_acl.h
@@ -148,4 +148,13 @@ static inline void forget_cached_acl(struct inode *inode, int type)
                 posix_acl_release(old);
 }
 #endif
+
+static inline void cache_no_acl(struct inode *inode)
+{
+#ifdef CONFIG_FS_POSIX_ACL
+        inode->i_acl = NULL;
+        inode->i_default_acl = NULL;
+#endif
+}
+
 #endif  /* __LINUX_POSIX_ACL_H */
diff --git a/mm/shmem.c b/mm/shmem.c
index 5f2019fc7895..d713239ce2ce 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1558,6 +1558,7 @@ static struct inode *shmem_get_inode(struct super_block *sb, int mode,
                 spin_lock_init(&info->lock);
                 info->flags = flags & VM_NORESERVE;
                 INIT_LIST_HEAD(&info->swaplist);
+                cache_no_acl(inode);
 
                 switch (mode & S_IFMT) {
                 default:
@@ -2379,10 +2380,6 @@ static struct inode *shmem_alloc_inode(struct super_block *sb)
         p = (struct shmem_inode_info *)kmem_cache_alloc(shmem_inode_cachep, GFP_KERNEL);
         if (!p)
                 return NULL;
-#ifdef CONFIG_TMPFS_POSIX_ACL
-        p->vfs_inode.i_acl = NULL;
-        p->vfs_inode.i_default_acl = NULL;
-#endif
         return &p->vfs_inode;
 }