LU-12328 flr: avoid reading unhealthy mirror

[fs/lustre-release.git] / lustre / include / cl_object.h

diff --git a/lustre/include/cl_object.h b/lustre/include/cl_object.h
index b475955..7dc9b10 100644 (file)
--- a/lustre/include/cl_object.h
+++ b/lustre/include/cl_object.h
@@ -1915,7 +1915,13 @@ struct cl_io {
        /**
         * Set if IO is triggered by async workqueue readahead.
         */
-                            ci_async_readahead:1;
+                            ci_async_readahead:1,
+       /**
+        * Set if we've tried all mirrors for this read IO, if it's not set,
+        * the read IO will check to-be-read OSCs' status, and make fast-switch
+        * another mirror if some of the OSTs are not healthy.
+        */
+                            ci_tried_all_mirrors:1;
        /**
         * How many times the read has retried before this one.
         * Set by the top level and consumed by the LOV.