summaryrefslogtreecommitdiff
path: root/fs/ocfs2/ocfs2.h
diff options
context:
space:
mode:
authorJoel Becker <joel.becker@oracle.com>2010-10-15 13:03:09 -0700
committerJoel Becker <joel.becker@oracle.com>2010-10-15 13:03:09 -0700
commitfc3718918f13ad72827d62d36ea0f5fb55090644 (patch)
tree4f9551256e02d08be37bab137f3d94182a67504c /fs/ocfs2/ocfs2.h
parent7bdb0d18bfd381cc5491eb95973ec5604b356c7e (diff)
parentd4396eafe402b710a8535137b3bf2abe6c059a15 (diff)
Merge branch 'globalheartbeat-2' of git://oss.oracle.com/git/smushran/linux-2.6 into ocfs2-merge-window
Conflicts: fs/ocfs2/ocfs2.h
Diffstat (limited to 'fs/ocfs2/ocfs2.h')
-rw-r--r--fs/ocfs2/ocfs2.h40
1 files changed, 34 insertions, 6 deletions
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index 3064feef143..d8408217e3b 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -250,7 +250,7 @@ enum ocfs2_local_alloc_state
enum ocfs2_mount_options
{
- OCFS2_MOUNT_HB_LOCAL = 1 << 0, /* Heartbeat started in local mode */
+ OCFS2_MOUNT_HB_LOCAL = 1 << 0, /* Local heartbeat */
OCFS2_MOUNT_BARRIER = 1 << 1, /* Use block barriers */
OCFS2_MOUNT_NOINTR = 1 << 2, /* Don't catch signals */
OCFS2_MOUNT_ERRORS_PANIC = 1 << 3, /* Panic on errors */
@@ -263,9 +263,10 @@ enum ocfs2_mount_options
control lists */
OCFS2_MOUNT_USRQUOTA = 1 << 10, /* We support user quotas */
OCFS2_MOUNT_GRPQUOTA = 1 << 11, /* We support group quotas */
-
- OCFS2_MOUNT_COHERENCY_BUFFERED = 1 << 12 /* Allow concurrent O_DIRECT
- writes */
+ OCFS2_MOUNT_COHERENCY_BUFFERED = 1 << 12, /* Allow concurrent O_DIRECT
+ writes */
+ OCFS2_MOUNT_HB_NONE = 1 << 13, /* No heartbeat */
+ OCFS2_MOUNT_HB_GLOBAL = 1 << 14, /* Global heartbeat */
};
#define OCFS2_OSB_SOFT_RO 0x0001
@@ -379,6 +380,8 @@ struct ocfs2_super
struct ocfs2_alloc_stats alloc_stats;
char dev_str[20]; /* "major,minor" of the device */
+ u8 osb_stackflags;
+
char osb_cluster_stack[OCFS2_STACK_LABEL_LEN + 1];
struct ocfs2_cluster_connection *cconn;
struct ocfs2_lock_res osb_super_lockres;
@@ -612,10 +615,35 @@ static inline int ocfs2_is_soft_readonly(struct ocfs2_super *osb)
return ret;
}
-static inline int ocfs2_userspace_stack(struct ocfs2_super *osb)
+static inline int ocfs2_clusterinfo_valid(struct ocfs2_super *osb)
{
return (osb->s_feature_incompat &
- OCFS2_FEATURE_INCOMPAT_USERSPACE_STACK);
+ (OCFS2_FEATURE_INCOMPAT_USERSPACE_STACK |
+ OCFS2_FEATURE_INCOMPAT_CLUSTERINFO));
+}
+
+static inline int ocfs2_userspace_stack(struct ocfs2_super *osb)
+{
+ if (ocfs2_clusterinfo_valid(osb) &&
+ memcmp(osb->osb_cluster_stack, OCFS2_CLASSIC_CLUSTER_STACK,
+ OCFS2_STACK_LABEL_LEN))
+ return 1;
+ return 0;
+}
+
+static inline int ocfs2_o2cb_stack(struct ocfs2_super *osb)
+{
+ if (ocfs2_clusterinfo_valid(osb) &&
+ !memcmp(osb->osb_cluster_stack, OCFS2_CLASSIC_CLUSTER_STACK,
+ OCFS2_STACK_LABEL_LEN))
+ return 1;
+ return 0;
+}
+
+static inline int ocfs2_cluster_o2cb_global_heartbeat(struct ocfs2_super *osb)
+{
+ return ocfs2_o2cb_stack(osb) &&
+ (osb->osb_stackflags & OCFS2_CLUSTER_O2CB_GLOBAL_HEARTBEAT);
}
static inline int ocfs2_mount_local(struct ocfs2_super *osb)