Add SCSI_PASSTHROUGH to zvols to enable UNMAP support

Signed-off-by: Paul Dagnelie <pcd@delphix.com>
openzfs · Jun 20, 2019 · 6ba56c9 · 6ba56c9
1 parent b1b4ac2
commit 6ba56c9
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/module/zfs/zvol.c b/module/zfs/zvol.c
@@ -1876,6 +1876,10 @@ zvol_create_minor_impl(const char *name)
 #ifdef QUEUE_FLAG_ADD_RANDOM
 	blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, zv->zv_queue);
 #endif
+	/* This flag was introduced in kernel version 4.12. */
+#ifdef QUEUE_FLAG_SCSI_PASSTHROUGH
+	blk_queue_flag_set(QUEUE_FLAG_SCSI_PASSTHROUGH, zv->zv_queue);
+#endif
 
 	if (spa_writeable(dmu_objset_spa(os))) {
 		if (zil_replay_disable)