Merge remote-tracking branch 'asoc/topic/intel' into asoc-next

[cascardo/linux.git] / include / linux / crush / crush.h

diff --git a/include/linux/crush/crush.h b/include/linux/crush/crush.h
index 48b4930..be8f12b 100644 (file)
--- a/include/linux/crush/crush.h
+++ b/include/linux/crush/crush.h
@@ -59,7 +59,8 @@ enum {
        CRUSH_RULE_SET_CHOOSELEAF_TRIES = 9, /* override chooseleaf_descend_once */
        CRUSH_RULE_SET_CHOOSE_LOCAL_TRIES = 10,
        CRUSH_RULE_SET_CHOOSE_LOCAL_FALLBACK_TRIES = 11,
-       CRUSH_RULE_SET_CHOOSELEAF_VARY_R = 12
+       CRUSH_RULE_SET_CHOOSELEAF_VARY_R = 12,
+       CRUSH_RULE_SET_CHOOSELEAF_STABLE = 13
 };
 
 /*
@@ -205,6 +206,11 @@ struct crush_map {
         * mappings line up a bit better with previous mappings. */
        __u8 chooseleaf_vary_r;
 
+       /* if true, it makes chooseleaf firstn to return stable results (if
+        * no local retry) so that data migrations would be optimal when some
+        * device fails. */
+       __u8 chooseleaf_stable;
+
 #ifndef __KERNEL__
        /*
         * version 0 (original) of straw_calc has various flaws.  version 1