Clear QUEUE_FLAG_ADD_RANDOM on zvols

zvols should not be an entropy source for the kernel. Disable it to be consistent with the upstream kernel. torvalds/linux@b277da0 Signed-off-by: Richard Yao <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes openzfs#3713
behlendorf · Aug 30, 2015 · c6a3a22 · c6a3a22
1 parent 3757bff
commit c6a3a22
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/module/zfs/zvol.c b/module/zfs/zvol.c
@@ -1427,6 +1427,9 @@ __zvol_create_minor(const char *name, boolean_t ignore_snapdev)
 #ifdef HAVE_BLK_QUEUE_NONROT
 	queue_flag_set_unlocked(QUEUE_FLAG_NONROT, zv->zv_queue);
 #endif
+#ifdef QUEUE_FLAG_ADD_RANDOM
+	queue_flag_clear_unlocked(QUEUE_FLAG_ADD_RANDOM, zv->zv_queue);
+#endif
 
 	if (spa_writeable(dmu_objset_spa(os))) {
 		if (zil_replay_disable)