Merge branch 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6

* 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6: (59 commits)
  [XFS] eagerly remove vmap mappings to avoid upsetting Xen
  [XFS] simplify validata_fields
  [XFS] no longer using io_vnode, as was remaining from 23 cherrypick
  [XFS] Remove STATIC which was missing from prior manual merge
  [XFS] Put back the QUEUE_ORDERED_NONE test in the barrier check.
  [XFS] Turn off XBF_ASYNC flag before re-reading superblock.
  [XFS] avoid race in sync_inodes() that can fail to write out all dirty data
  [XFS] This fix prevents bulkstat from spinning in an infinite loop.
  [XFS] simplify xfs_create/mknod/symlink prototype
  [XFS] avoid xfs_getattr in XFS_IOC_FSGETXATTR ioctl
  [XFS] get_bulkall() could return incorrect inode state
  [XFS] Kill unused IOMAP_EOF flag
  [XFS] fix when DMAPI mount option processing happens
  [XFS] ensure file size is logged on synchronous writes
  [XFS] growlock should be a mutex
  [XFS] replace some large xfs_log_priv.h macros by proper functions
  [XFS] kill struct bhv_vfs
  [XFS] move syncing related members from struct bhv_vfs to struct xfs_mount
  [XFS] kill the vfs_flags member in struct bhv_vfs
  [XFS] kill the vfs_fsid and vfs_altfsid members in struct bhv_vfs
  ...

1 files changed, 38 insertions, 5 deletions

diff --git a/fs/xfs/xfs_dmops.c b/fs/xfs/xfs_dmops.c
index 1e4a35ddf7f9..6cd5704258a2 100644
--- a/fs/xfs/xfs_dmops.c
+++ b/fs/xfs/xfs_dmops.c
@@ -19,18 +19,51 @@
 #include "xfs_fs.h"
 #include "xfs_types.h"
 #include "xfs_log.h"
-#include "xfs_inum.h"
 #include "xfs_trans.h"
 #include "xfs_sb.h"
-#include "xfs_ag.h"
-#include "xfs_dir2.h"
 #include "xfs_dmapi.h"
+#include "xfs_inum.h"
+#include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_clnt.h"
+
 
-xfs_dmops_t     xfs_dmcore_stub = {
+static struct xfs_dmops xfs_dmcore_stub = {
         .xfs_send_data          = (xfs_send_data_t)fs_nosys,
         .xfs_send_mmap          = (xfs_send_mmap_t)fs_noerr,
         .xfs_send_destroy       = (xfs_send_destroy_t)fs_nosys,
         .xfs_send_namesp        = (xfs_send_namesp_t)fs_nosys,
-        .xfs_send_unmount       = (xfs_send_unmount_t)fs_noval,
+        .xfs_send_mount         = (xfs_send_mount_t)fs_nosys,
+        .xfs_send_unmount       = (xfs_send_unmount_t)fs_noerr,
 };
+
+int
+xfs_dmops_get(struct xfs_mount *mp, struct xfs_mount_args *args)
+{
+        if (args->flags & XFSMNT_DMAPI) {
+                struct xfs_dmops *ops;
+
+                ops = symbol_get(xfs_dmcore_xfs);
+                if (!ops) {
+                        request_module("xfs_dmapi");
+                        ops = symbol_get(xfs_dmcore_xfs);
+                }
+
+                if (!ops) {
+                        cmn_err(CE_WARN, "XFS: no dmapi support available.");
+                        return EINVAL;
+                }
+                mp->m_dm_ops = ops;
+        } else {
+                mp->m_dm_ops = &xfs_dmcore_stub;
+        }
+
+        return 0;
+}
+
+void
+xfs_dmops_put(struct xfs_mount *mp)
+{
+        if (mp->m_dm_ops != &xfs_dmcore_stub)
+                symbol_put(xfs_dmcore_xfs);
+}