xfs: drop dmapi hooks

Dmapi support was never merged upstream, but we still have a lot of hooks
bloating XFS for it, all over the fast pathes of the filesystem.

This patch drops over 700 lines of dmapi overhead.  If we'll ever get HSM
support in mainline at least the namespace events can be done much saner
in the VFS instead of the individual filesystem, so it's not like this
is much help for future work.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>

1 files changed, 3 insertions, 29 deletions

diff --git a/fs/xfs/xfs_rename.c b/fs/xfs/xfs_rename.c
index fc1cda23b817..fa752f495a0c 100644
--- a/fs/xfs/xfs_rename.c
+++ b/fs/xfs/xfs_rename.c
@@ -24,7 +24,6 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
@@ -119,18 +118,6 @@ xfs_rename(
 	xfs_itrace_entry(src_dp);
 	xfs_itrace_entry(target_dp);
 
-	if (DM_EVENT_ENABLED(src_dp, DM_EVENT_RENAME) ||
-	    DM_EVENT_ENABLED(target_dp, DM_EVENT_RENAME)) {
-		error = XFS_SEND_NAMESP(mp, DM_EVENT_RENAME,
-					src_dp, DM_RIGHT_NULL,
-					target_dp, DM_RIGHT_NULL,
-					src_name->name, target_name->name,
-					0, 0, 0);
-		if (error)
-			return error;
-	}
-	/* Return through std_return after this point. */
-
 	new_parent = (src_dp != target_dp);
 	src_is_directory = ((src_ip->i_d.di_mode & S_IFMT) == S_IFDIR);
 
@@ -369,26 +356,13 @@ xfs_rename(
 	 * trans_commit will unlock src_ip, target_ip & decrement
 	 * the vnode references.
 	 */
-	error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
-
-	/* Fall through to std_return with error = 0 or errno from
-	 * xfs_trans_commit	 */
-std_return:
-	if (DM_EVENT_ENABLED(src_dp, DM_EVENT_POSTRENAME) ||
-	    DM_EVENT_ENABLED(target_dp, DM_EVENT_POSTRENAME)) {
-		(void) XFS_SEND_NAMESP (mp, DM_EVENT_POSTRENAME,
-					src_dp, DM_RIGHT_NULL,
-					target_dp, DM_RIGHT_NULL,
-					src_name->name, target_name->name,
-					0, error, 0);
-	}
-	return error;
+	return xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
 
  abort_return:
 	cancel_flags |= XFS_TRANS_ABORT;
-	/* FALLTHROUGH */
  error_return:
 	xfs_bmap_cancel(&free_list);
 	xfs_trans_cancel(tp, cancel_flags);
-	goto std_return;
+ std_return:
+	return error;
 }