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| author | Joel Becker <joel.becker@oracle.com> | 2008-02-01 12:06:54 -0800 |
|---|---|---|
| committer | Mark Fasheh <mfasheh@suse.com> | 2008-04-18 08:56:03 -0700 |
| commit | 386a2ef8576e966076c293f6496b9e3d7e3d9035 (patch) | |
| tree | 08b6cae47060497359a6ab78134a1bf8e38012cc /fs/ocfs2/stackglue.h | |
| parent | fb86b1f07120b66769a39c445da5c4300069dd44 (diff) | |
| download | linux-386a2ef8576e966076c293f6496b9e3d7e3d9035.tar.gz linux-386a2ef8576e966076c293f6496b9e3d7e3d9035.tar.bz2 linux-386a2ef8576e966076c293f6496b9e3d7e3d9035.zip | |
ocfs2: New slot map format
The old slot map had a few limitations:
- It was limited to one block, so the maximum slot count was 255.
- Each slot was signed 16bits, limiting node numbers to INT16_MAX.
- An empty slot was marked by the magic 0xFFFF (-1).
The new slot map format provides 32bit node numbers (UINT32_MAX), a
separate space to mark a slot in use, and extra room to grow. The slot
map is now bounded by i_size, not a block.
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ocfs2/stackglue.h')
0 files changed, 0 insertions, 0 deletions