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xfs: add tracing to xfs_swap_extents

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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>
This commit is contained in:
Dave Chinner
2010-01-14 01:33:55 +00:00
committed by Alex Elder
parent e09f98606d
commit 3a85cd96d3
2 changed files with 58 additions and 0 deletions
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5
fs/xfs/xfs_dfrag.c
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@@ -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;