diff options
Diffstat (limited to 'mdmon.c')
| -rw-r--r-- | mdmon.c | 44 |
1 files changed, 29 insertions, 15 deletions
@@ -113,7 +113,7 @@ static struct superswitch *find_metadata_methods(char *vers) return NULL; } -int make_pidfile(char *devname) +static int make_pidfile(char *devname) { char path[100]; char pid[10]; @@ -192,7 +192,7 @@ void remove_pidfile(char *devname) rmdir(pid_dir); } -int make_control_sock(char *devname) +static int make_control_sock(char *devname) { char path[100]; int sfd; @@ -221,12 +221,6 @@ int make_control_sock(char *devname) return sfd; } -int socket_hup_requested; -static void hup(int sig) -{ - socket_hup_requested = 1; -} - static void term(int sig) { sigterm = 1; @@ -431,24 +425,25 @@ static int mdmon(char *devname, int devnum, int must_fork, int takeover) */ sigemptyset(&set); sigaddset(&set, SIGUSR1); - sigaddset(&set, SIGHUP); - sigaddset(&set, SIGALRM); sigaddset(&set, SIGTERM); sigprocmask(SIG_BLOCK, &set, NULL); act.sa_handler = wake_me; act.sa_flags = 0; sigaction(SIGUSR1, &act, NULL); - sigaction(SIGALRM, &act, NULL); - act.sa_handler = hup; - sigaction(SIGHUP, &act, NULL); act.sa_handler = term; sigaction(SIGTERM, &act, NULL); act.sa_handler = SIG_IGN; sigaction(SIGPIPE, &act, NULL); if (takeover) { + pid_dir = VAR_RUN; victim = mdmon_pid(container->devnum); - victim_sock = connect_monitor(container->devname); + if (victim < 0) { + pid_dir = ALT_RUN; + victim = mdmon_pid(container->devnum); + } + if (victim >= 0) + victim_sock = connect_monitor(container->devname); } ignore = chdir("/"); @@ -470,6 +465,25 @@ static int mdmon(char *devname, int devnum, int must_fork, int takeover) /* Ok, this is close enough. We can say goodbye to our parent now. */ + if (victim > 0) + remove_pidfile(devname); + if (mkdir(VAR_RUN, 0600) >= 0 || errno == EEXIST) + pid_dir = VAR_RUN; + else if (mkdir(ALT_RUN, 0600) >= 0 || errno == EEXIST) + pid_dir = ALT_RUN; + else { + fprintf(stderr, "mdmon: Neither %s nor %s are writable\n" + " cannot create .pid or .sock files. Aborting\n", + VAR_RUN, ALT_RUN); + exit(3); + } + if (make_pidfile(devname) < 0) { + fprintf(stderr, "mdmon: Cannot create pid file in %s - aborting.\n", + pid_dir); + exit(3); + } + container->sock = make_control_sock(devname); + status = 0; if (write(pfd[1], &status, sizeof(status)) < 0) fprintf(stderr, "mdmon: failed to notify our parent: %d\n", @@ -484,7 +498,7 @@ static int mdmon(char *devname, int devnum, int must_fork, int takeover) exit(2); } - if (victim > -1) { + if (victim > 0) { try_kill_monitor(victim, container->devname, victim_sock); close(victim_sock); } |