From: Joel Becker Date: Fri, 1 Feb 2008 23:08:23 +0000 (-0800) Subject: ocfs2: Add the USERSPACE_STACK incompat bit. X-Git-Tag: v2.6.26-rc1~1143^2~40 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b61817e1166c5e19c08baf05196477cc345e1b1a;p=pandora-kernel.git ocfs2: Add the USERSPACE_STACK incompat bit. The filesystem gains the USERSPACE_STACK incomat bit and the s_cluster_info field on the superblock. When a userspace stack is in use, the name of the stack is stored on-disk for mount-time verification. The "cluster_stack" option is added to mount(2) processing. The mount process needs to pass the matching stack name. If the passed name and the on-disk name do not match, the mount is failed. When using the classic o2cb stack, the incompat bit is *not* set and no mount option is used other than the usual heartbeat=local. Thus, the filesystem is compatible with older tools. Signed-off-by: Joel Becker Signed-off-by: Mark Fasheh --- Reading git-diff-tree failed