File use-mirrortype-asdefault-whenclvmdrunning.patch of Package lvm2.openSUSE_Leap_42.1_Update

References: bnc#870824
---
 tools/lvcreate.c |   28 ++++++++++++++++++++++++++--
 1 file changed, 26 insertions(+), 2 deletions(-)

--- a/tools/lvcreate.c
+++ b/tools/lvcreate.c
@@ -834,6 +834,28 @@ static int _read_activation_params(struc
 	return 1;
 }
 
+static int clvmd_daemon_is_running(void)
+{
+       int fd;
+       struct flock lock;
+
+       if((fd = open(CLVMD_PIDFILE, O_RDONLY)) < 0)
+               return 0;
+
+       lock.l_type = F_WRLCK;
+       lock.l_start = 0;
+       lock.l_whence = SEEK_SET;
+       lock.l_len = 0;
+       if (fcntl(fd, F_GETLK, &lock) < 0) {
+	       /* errors with fcntl */
+               close(fd);
+               return 0;
+       }
+
+       close(fd);
+       return (lock.l_type == F_UNLCK) ? 0 : 1;
+}
+
 static int _lvcreate_params(struct cmd_context *cmd,
 			    int argc, char **argv,
 			    struct lvcreate_params *lp,
@@ -860,6 +882,8 @@ static int _lvcreate_params(struct lvcre
 		mirror_default_cfg = (arg_uint_value(cmd, stripes_ARG, 1) > 1)
 			? global_raid10_segtype_default_CFG : global_mirror_segtype_default_CFG;
 		segtype_str = find_config_tree_str(cmd, mirror_default_cfg, NULL);
+		if(clvmd_daemon_is_running())
+			segtype_str = "mirror";
 	} else
 		segtype_str = "striped";