libfuse: add "time_gran" option

This allows the filesystem to specify the time granularity it
supports when the kernel is responsible for updating times
("writeback_cache" option).

1 files changed, 9 insertions, 1 deletions

diff --git a/include/fuse_common.h b/include/fuse_common.h
index 22d9591..aec4349 100644
--- a/include/fuse_common.h
+++ b/include/fuse_common.h
@@ -190,9 +190,17 @@ struct fuse_conn_info {
 	unsigned congestion_threshold;
 
 	/**
+	 * Time granularity if kernel is responsible for setting times (in nsec)
+	 *
+	 * Should be power of 10.  A zero (default) value is equivalent to
+	 * 1000000000 (1sec).
+	 */
+	unsigned time_gran;
+
+	/**
 	 * For future use.
 	 */
-	unsigned reserved[23];
+	unsigned reserved[22];
 };
 
 struct fuse_session;