From 635c4d0bd94512de3aafa7ae8f45c1dce0fc1ffe Mon Sep 17 00:00:00 2001
From: Jie Liu <jeff.liu@oracle.com>
Date: Thu, 6 Jun 2013 06:24:01 -0700
Subject: [PATCH] xfs: return FIEMAP_EXTENT_UNKNOWN for delayed allocation
 extent

For FIEMAP ioctl(2), if an extent is in delayed allocation
state, we need to return the FIEMAP_EXTENT_UNKNOWN flag except
the FIEMAP_EXTENT_DELALLOC because its data location is unknown.

Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
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