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-rw-r--r--utils/mount/stropts.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/utils/mount/stropts.c b/utils/mount/stropts.c
index 13523f8..b6d3a12 100644
--- a/utils/mount/stropts.c
+++ b/utils/mount/stropts.c
@@ -238,6 +238,27 @@ static int set_mandatory_options(const char *type,
}
/*
+ * Distinguish between permanent and temporary errors.
+ *
+ * Returns 0 if the passed-in error is temporary, thus the
+ * mount system call should be retried; returns one if the
+ * passed-in error is permanent, thus the mount system call
+ * should not be retried.
+ */
+static int is_permanent_error(int error)
+{
+ switch (error) {
+ case EACCES:
+ case ESTALE:
+ case ETIMEDOUT:
+ case ECONNREFUSED:
+ return 0; /* temporary */
+ default:
+ return 1; /* permanent */
+ }
+}
+
+/*
* Reconstruct the mount option string based on a portmapper probe
* of the server. Returns one if the server's portmapper returned
* something we can use, otherwise zero.