From: Joel Becker Date: Fri, 1 Feb 2008 20:06:54 +0000 (-0800) Subject: ocfs2: New slot map format X-Git-Tag: v2.6.26-rc1~1143^2~57 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=386a2ef8576e966076c293f6496b9e3d7e3d9035;p=pandora-kernel.git 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 Signed-off-by: Mark Fasheh --- Reading git-diff-tree failed