> 1142992035 +1100
committer Nathan Scott <nathans@sgi.com> 1142992035 +1100

[XFS] Explain the race closed by the addition of vn_iowait() to the start
of xfs_itruncate_start().

SGI-PV: 947420
SGI-Modid: xfs-linux-melb:xfs-kern:25527a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
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