commit 386a2ef8576e966076c293f6496b9e3d7e3d9035
author Joel Becker <joel.becker@oracle.com> Fri Feb 01 12:06:54 2008 -0800
committer Mark Fasheh <mfasheh@suse.com> Fri Apr 18 08:56:03 2008 -0700
tree 08b6cae47060497359a6ab78134a1bf8e38012cc
parent fb86b1f07120b66769a39c445da5c4300069dd44

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>