ocfs2: Add an incompat feature flag OCFS2_FEATURE_INCOMPAT_CLUSTERINFO

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OCFS2_FEATURE_INCOMPAT_CLUSTERINFO allows us to use sb->s_cluster_info for
both userspace and o2cb cluster stacks. It also allows us to extend cluster
info to include stack flags.

This patch also adds stackflags to sb->s_clusterinfo. It also introduces a
clusterinfo flag OCFS2_CLUSTER_O2CB_GLOBAL_HEARTBEAT to denote the enabled
global heartbeat mode.

This incompat flag can be set/cleared using tunefs.ocfs2 --fs-features. The
clusterinfo flag is set/cleared using tunefs.ocfs2 --update-cluster-stack.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>

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This commit is contained in:

Sunil Mushran 2010-10-09 10:24:46 -07:00

parent 54b5187b5a

commit 98f486f23b

3 changed files with 66 additions and 9 deletions

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31

fs/ocfs2/ocfs2.h

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40

fs/ocfs2/ocfs2_fs.h

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4

fs/ocfs2/super.c

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