xfs: introduce the CoW fork

[mirror_ubuntu-zesty-kernel.git] / fs / xfs / xfs_inode.h

diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 4be32036e16a995448bdb32363168a01c3585a60..ff6fc03c0092ded965cc6f63e4b88f2ddd1b40ab 100644 (file)
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -47,6 +47,7 @@ typedef struct xfs_inode {
 
        /* Extent information. */
        xfs_ifork_t             *i_afp;         /* attribute fork pointer */
+       xfs_ifork_t             *i_cowfp;       /* copy on write extents */
        xfs_ifork_t             i_df;           /* data fork */
 
        /* operations vectors */
@@ -65,6 +66,9 @@ typedef struct xfs_inode {
 
        struct xfs_icdinode     i_d;            /* most of ondisk inode */
 
+       xfs_extnum_t            i_cnextents;    /* # of extents in cow fork */
+       unsigned int            i_cformat;      /* format of cow fork */
+
        /* VFS inode */
        struct inode            i_vnode;        /* embedded VFS inode */
 } xfs_inode_t;