From: Jeff Layton <jlayton@xxxxxxxxxx>
Add a new recovery backend operation to tell whether the grace period
is being fully enforced. Singleton backends that don't define this
operation will just have nfs_grace_enforcing() return true.
Change-Id: I8020723238396efe0949f29e1906c58b0a5e26c9
Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
---
src/SAL/nfs4_recovery.c | 14 ++++++++++++++
src/include/sal_functions.h | 1 +
2 files changed, 15 insertions(+)
diff --git a/src/SAL/nfs4_recovery.c b/src/SAL/nfs4_recovery.c
index debc6cab1bdb..400d8b528d26 100644
--- a/src/SAL/nfs4_recovery.c
+++ b/src/SAL/nfs4_recovery.c
@@ -227,6 +227,20 @@ void nfs_maybe_start_grace(void)
}
}
+/**
+ * @brief Are all hosts in cluster enforcing the grace period?
+ *
+ * Singleton servers always return true here since the only grace period that
+ * matters is the local one. Clustered backends should check to make sure that
+ * the whole cluster is in grace.
+ */
+bool nfs_grace_enforcing(void)
+{
+ if (recovery_backend->grace_enforcing)
+ return recovery_backend->grace_enforcing();
+ return true;
+}
+
void nfs_try_lift_grace(void)
{
bool in_grace = true;
diff --git a/src/include/sal_functions.h b/src/include/sal_functions.h
index ac01a6eba497..96a4eb40a50b 100644
--- a/src/include/sal_functions.h
+++ b/src/include/sal_functions.h
@@ -1027,6 +1027,7 @@ struct nfs4_recovery_backend {
void (*maybe_start_grace)(void);
bool (*try_lift_grace)(void);
void (*set_enforcing)(void);
+ bool (*grace_enforcing)(void);
};
void fs_backend_init(struct nfs4_recovery_backend **);
--
2.17.0
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