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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>
This commit is contained in:
Jie Liu 2013-06-06 06:24:01 -07:00 committed by Ben Myers
parent 725eb1eb2a
commit 635c4d0bd9
1 changed files with 2 additions and 1 deletions
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3
fs/xfs/xfs_iops.c
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@ -987,7 +987,8 @@ xfs_fiemap_format(
if (bmv->bmv_oflags & BMV_OF_PREALLOC)
fiemap_flags |= FIEMAP_EXTENT_UNWRITTEN;
else if (bmv->bmv_oflags & BMV_OF_DELALLOC) {
fiemap_flags |= FIEMAP_EXTENT_DELALLOC;
fiemap_flags |= (FIEMAP_EXTENT_DELALLOC |
FIEMAP_EXTENT_UNKNOWN);
physical = 0; /* no block yet */
}
if (bmv->bmv_oflags & BMV_OF_LAST)