[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_iocore.c b/fs/xfs/xfs_iocore.c
index a07815661a8c..d3da194f8b7d 100644
--- a/fs/xfs/xfs_iocore.c
+++ b/fs/xfs/xfs_iocore.c
@@ -26,6 +26,7 @@
 #include "xfs_ag.h"
 #include "xfs_dir.h"
 #include "xfs_dir2.h"
+#include "xfs_dfrag.h"
 #include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
@@ -68,6 +69,7 @@ xfs_ioinit(
 xfs_ioops_t     xfs_iocore_xfs = {
         .xfs_ioinit             = (xfs_ioinit_t) xfs_ioinit,
         .xfs_bmapi_func         = (xfs_bmapi_t) xfs_bmapi,
+        .xfs_bunmapi_func       = (xfs_bunmapi_t) xfs_bunmapi,
         .xfs_bmap_eof_func      = (xfs_bmap_eof_t) xfs_bmap_eof,
         .xfs_iomap_write_direct =
                         (xfs_iomap_write_direct_t) xfs_iomap_write_direct,
@@ -84,6 +86,7 @@ xfs_ioops_t	xfs_iocore_xfs = {
         .xfs_unlock             = (xfs_unlk_t) xfs_iunlock,
         .xfs_size_func          = (xfs_size_t) xfs_size_fn,
         .xfs_iodone             = (xfs_iodone_t) fs_noerr,
+        .xfs_swap_extents_func  = (xfs_swap_extents_t) xfs_swap_extents,
 };
 
 void