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authorDave Chinner <david@fromorbit.com>2010-01-14 04:33:55 +0300
committerAlex Elder <aelder@sgi.com>2010-01-16 00:20:06 +0300
commit3a85cd96d3ab3c6dcf88b81fc6eaddb84e565a43 (patch)
tree9b1cfa8db498d7e76b1aa745254261010814f676 /fs/xfs/xfs_dfrag.c
parente09f98606dcc156de1146c209d45a0d6d5f51c3f (diff)
downloadlinux-3a85cd96d3ab3c6dcf88b81fc6eaddb84e565a43.tar.xz
xfs: add tracing to xfs_swap_extents
To be able to diagnose whether the swap extents function is detecting compatible inode data fork configurations for swapping extents, add tracing points to the code to allow us to see the format of the inode forks before and after the swap. Signed-off-by: Dave Chinner <david@fromorbit.com> Signed-off-by: Alex Elder <aelder@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_dfrag.c')
-rw-r--r--fs/xfs/xfs_dfrag.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/xfs/xfs_dfrag.c b/fs/xfs/xfs_dfrag.c
index 84ca1cf16a1e..f25e54027d10 100644
--- a/fs/xfs/xfs_dfrag.c
+++ b/fs/xfs/xfs_dfrag.c
@@ -254,6 +254,9 @@ xfs_swap_extents(
goto out_unlock;
}
+ trace_xfs_swap_extent_before(ip, 0);
+ trace_xfs_swap_extent_before(tip, 1);
+
/* check inode formats now that data is flushed */
error = xfs_swap_extents_check_format(ip, tip);
if (error) {
@@ -421,6 +424,8 @@ xfs_swap_extents(
error = xfs_trans_commit(tp, XFS_TRANS_SWAPEXT);
+ trace_xfs_swap_extent_after(ip, 0);
+ trace_xfs_swap_extent_after(tip, 1);
out:
kmem_free(tempifp);
return error;