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| author | Sunil Mushran <sunil.mushran@oracle.com> | 2010-10-09 10:26:23 -0700 |
|---|---|---|
| committer | Sunil Mushran <sunil.mushran@oracle.com> | 2010-10-09 10:26:23 -0700 |
| commit | ea2034416b54700e30371f2ad6517cbb94674083 (patch) | |
| tree | 057585455d8357a63b5c35ebc69de73ac0f828ec /fs/ocfs2/cluster | |
| parent | b3c85c4cdf77154acc940dd0f14d1fb99cbbaf75 (diff) | |
| download | linux-ea2034416b54700e30371f2ad6517cbb94674083.tar.bz2 | |
ocfs2/dlm: Add message DLM_QUERY_REGION
Adds new dlm message DLM_QUERY_REGION that sends the names of all active
heartbeat regions. This message is only sent in the global heartbeat
mode. If the regions in the joining node do not fully match the ones in
the active nodes, the join domain request is rejected.
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Diffstat (limited to 'fs/ocfs2/cluster')
| -rw-r--r-- | fs/ocfs2/cluster/ocfs2_nodemanager.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/ocfs2/cluster/ocfs2_nodemanager.h b/fs/ocfs2/cluster/ocfs2_nodemanager.h index 5b9854bad571..49b594325bec 100644 --- a/fs/ocfs2/cluster/ocfs2_nodemanager.h +++ b/fs/ocfs2/cluster/ocfs2_nodemanager.h @@ -36,4 +36,10 @@ /* host name, group name, cluster name all 64 bytes */ #define O2NM_MAX_NAME_LEN 64 // __NEW_UTS_LEN +/* + * Maximum number of global heartbeat regions allowed. + * **CAUTION** Changing this number will break dlm compatibility. + */ +#define O2NM_MAX_REGIONS 32 + #endif /* _OCFS2_NODEMANAGER_H */ |