From 052a4f432c2c478f3c94a726318c6b46c634758b Mon Sep 17 00:00:00 2001
From: Ondrej Kozina <okozina@redhat.com>
Date: Wed, 13 Mar 2019 17:35:09 +0100
Subject: [PATCH] Add internal option to skip fs freeze in device suspend.

---
 lib/libdevmapper.c | 7 +++++++
 lib/utils_dm.h     | 1 +
 2 files changed, 8 insertions(+)

diff --git a/lib/libdevmapper.c b/lib/libdevmapper.c
index 3d5dbe96..e00ab2f3 100644
--- a/lib/libdevmapper.c
+++ b/lib/libdevmapper.c
@@ -907,6 +907,10 @@ static int _dm_simple(int task, const char *name, uint32_t dmflags)
 	if (name && !dm_task_set_name(dmt, name))
 		goto out;
 
+	if (task == DM_DEVICE_SUSPEND &&
+	    (dmflags & DM_SUSPEND_SKIP_LOCKFS) && !dm_task_skip_lockfs(dmt))
+		goto out;
+
 	r = dm_task_run(dmt);
 out:
 	dm_task_destroy(dmt);
@@ -1277,6 +1281,9 @@ static int _dm_resume_device(const char *name, uint32_t dmflags)
 	if (!dm_task_set_name(dmt, name))
 		goto out;
 
+	if ((dmflags & DM_SUSPEND_SKIP_LOCKFS) && !dm_task_skip_lockfs(dmt))
+		goto out;
+
 	if (_dm_use_udev() && !_dm_task_set_cookie(dmt, &cookie, udev_flags))
 		goto out;
 
diff --git a/lib/utils_dm.h b/lib/utils_dm.h
index 6a724dba..355e3576 100644
--- a/lib/utils_dm.h
+++ b/lib/utils_dm.h
@@ -35,6 +35,7 @@ struct crypt_params_integrity;
 
 /* Device mapper internal flags */
 #define DM_RESUME_PRIVATE      (1 << 4) /* CRYPT_ACTIVATE_PRIVATE */
+#define DM_SUSPEND_SKIP_LOCKFS (1 << 5)
 
 static inline uint32_t act2dmflags(uint32_t act_flags)
 {