From: Ilya Dryomov <ilya.dryomov@inktank.com>
Date: Fri, 25 Jul 2014 12:04:53 +0000 (+0400)
Subject: test_librbd_fsx: clone/flatten probabilities
X-Git-Tag: v0.84~51^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=refs%2Fpull%2F2153%2Fhead;p=ceph.git

test_librbd_fsx: clone/flatten probabilities

Higher the clone probability to 8% and lower the probability of flatten
to 2%.  This should give us longer parent chaines (before this we would
usually have one parent and even then only for a few ops time).

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
---

diff --git a/src/test/librbd/fsx.c b/src/test/librbd/fsx.c
index ca218c8087d9..b7f31463962f 100644
--- a/src/test/librbd/fsx.c
+++ b/src/test/librbd/fsx.c
@@ -1634,11 +1634,19 @@ test(void)
 		}
 		break;
 	case OP_CLONE:
-		if (!clone_calls || get_random() % 100 > 5 || file_size == 0) {
+		/* clone, 8% chance */
+		if (!clone_calls || file_size == 0 || get_random() % 100 >= 8) {
 			log4(OP_SKIPPED, OP_CLONE, 0, 0);
 			goto out;
 		}
 		break;
+	case OP_FLATTEN:
+		/* flatten four times as rarely as clone, 2% chance */
+		if (get_random() % 100 >= 2) {
+			log4(OP_SKIPPED, OP_FLATTEN, 0, 0);
+			goto out;
+		}
+		break;
 	}
 
 	switch (op) {