Merge branch 'xfs-misc-fixes-for-4.1' into for-next

1 files changed, 22 insertions, 0 deletions

diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index a1cd55f3f351..c73b63d51bc1 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -391,6 +391,28 @@ int	xfs_zero_eof(struct xfs_inode *ip, xfs_off_t offset,
 int     xfs_iozero(struct xfs_inode *ip, loff_t pos, size_t count);
 
 
+/* from xfs_iops.c */
+/*
+ * When setting up a newly allocated inode, we need to call
+ * xfs_finish_inode_setup() once the inode is fully instantiated at
+ * the VFS level to prevent the rest of the world seeing the inode
+ * before we've completed instantiation. Otherwise we can do it
+ * the moment the inode lookup is complete.
+ */
+extern void xfs_setup_inode(struct xfs_inode *ip);
+static inline void xfs_finish_inode_setup(struct xfs_inode *ip)
+{
+        xfs_iflags_clear(ip, XFS_INEW);
+        barrier();
+        unlock_new_inode(VFS_I(ip));
+}
+
+static inline void xfs_setup_existing_inode(struct xfs_inode *ip)
+{
+        xfs_setup_inode(ip);
+        xfs_finish_inode_setup(ip);
+}
+
 #define IHOLD(ip) \
 do { \
         ASSERT(atomic_read(&VFS_I(ip)->i_count) > 0) ; \