[XFS] Add parameters to xfs_bmapi() and xfs_bunmapi() to have them report

the range spanned by modifications to the in-core extent map.  Add
XFS_BUNMAPI() and XFS_SWAP_EXTENTS() macros that call xfs_bunmapi() and
xfs_swap_extents() via the ioops vector. Change all calls that may modify
the in-core extent map for the data fork to go through the ioops vector. 
This allows a cache of extent map data to be kept in sync.

SGI-PV: 947615
SGI-Modid: xfs-linux-melb:xfs-kern:209226a

Signed-off-by: Olaf Weber <olaf@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/fs/xfs/xfs_dfrag.h b/fs/xfs/xfs_dfrag.h
index f678559abc45..da178205be68 100644
--- a/fs/xfs/xfs_dfrag.h
+++ b/fs/xfs/xfs_dfrag.h
@@ -48,6 +48,9 @@ typedef struct xfs_swapext
  */
 int     xfs_swapext(struct xfs_swapext __user *sx);
 
+int     xfs_swap_extents(struct xfs_inode *ip, struct xfs_inode *tip,
+                struct xfs_swapext *sxp);
+
 #endif  /* __KERNEL__ */
 
 #endif  /* __XFS_DFRAG_H__ */