| commit | e48edee2d8eab812f31f0ff62c6ba635ca2e1e21 | |
| author | Mark Fasheh <mark.fasheh@oracle.com> | |
| Thu, 8 Mar 2007 00:46:57 +0000 (7 16:46 -0800) | ||
| committer | Mark Fasheh <mark.fasheh@oracle.com> | |
| Thu, 26 Apr 2007 22:02:37 +0000 (26 15:02 -0700) | ||
| tree | 6afb9fe59a06ce621cb11d570e432e7d739376ff | treesnapshot (tar.gz zip) |
| parent | 6af67d8205cf65fbaaa743edc7ebb46e486e34ff | commitdiff |
ocfs2: make room for unwritten extents flag
Due to the size of our group bitmaps, we'll never have a leaf node extent
record with more than 16 bits worth of clusters. Split e_clusters up so that
leaf nodes can get a flags field where we can mark unwritten extents.
Interior nodes whose length references all the child nodes beneath it can't
split their e_clusters field, so we use a union to preserve sizing there.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Due to the size of our group bitmaps, we'll never have a leaf node extent
record with more than 16 bits worth of clusters. Split e_clusters up so that
leaf nodes can get a flags field where we can mark unwritten extents.
Interior nodes whose length references all the child nodes beneath it can't
split their e_clusters field, so we use a union to preserve sizing there.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>