add pmxcfs restart detection heuristic for IPCC

[pve-cluster.git] / data / src / pmxcfs.c

diff --git a/data/src/pmxcfs.c b/data/src/pmxcfs.c
index bb5b4ad393e8d837234eab87ecb31de0302f268b..6047ad05aa13604dd66153dd65a836f2256d4f1a 100644 (file)
--- a/data/src/pmxcfs.c
+++ b/data/src/pmxcfs.c
@@ -58,6 +58,7 @@
 
 #define DBFILENAME VARLIBDIR "/config.db"
 #define LOCKFILE VARLIBDIR "/.pmxcfs.lockfile"
+#define RESTART_FLAG_FILE RUNDIR "/cfs-restart-flag"
 
 #define CFSDIR "/etc/pve"
 
@@ -860,6 +861,7 @@ int main(int argc, char *argv[])
        umask(027);
 
        mkdir(VARLIBDIR, 0755);
+       mkdir(RUNDIR, 0755);
 
        if ((lockfd = open(LOCKFILE, O_RDWR|O_CREAT|O_APPEND, 0600)) == -1) {
                cfs_critical("unable to create lock '%s': %s", LOCKFILE, strerror (errno));
@@ -1018,8 +1020,12 @@ int main(int argc, char *argv[])
 
        server_start(memdb);
 
+       unlink(RESTART_FLAG_FILE);
+
        ret = fuse_loop_mt(fuse);
 
+       open(RESTART_FLAG_FILE, O_CREAT|O_NOCTTY|O_NONBLOCK);
+
        cfs_message("teardown filesystem");
 
        server_stop();