#include <unistd.h>
#include <stdlib.h>
+#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/mman.h>
+#include <sys/syscall.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include "mdadm.h"
#include "mdmon.h"
-struct active_array *array_list;
struct active_array *discard_this;
struct active_array *pending_discard;
-struct md_generic_cmd *active_cmd;
+
+int mon_tid, mgr_tid;
int run_child(void *v)
{
struct supertype *c = v;
+
+ mon_tid = syscall(SYS_gettid);
do_monitor(c);
return 0;
}
static char stack[4096];
int rv;
- rv = pipe(container->mgr_pipe);
- if (rv < 0)
- return rv;
- rv = pipe(container->mon_pipe);
- if (rv < 0)
- goto err_mon_pipe;
rv = clone(run_child, stack+4096-64,
CLONE_FS|CLONE_FILES|CLONE_VM|CLONE_SIGHAND|CLONE_THREAD,
container);
- if (rv < 0)
- goto err_clone;
- else
- return rv;
-
- err_clone:
- close(container->mon_pipe[0]);
- close(container->mon_pipe[1]);
- err_mon_pipe:
- close(container->mgr_pipe[0]);
- close(container->mgr_pipe[1]);
+ mgr_tid = syscall(SYS_gettid);
+
return rv;
}
{
if (strcmp(vers, "ddf") == 0)
return &super_ddf;
+ if (strcmp(vers, "imsm") == 0)
+ return &super_imsm;
return NULL;
}
kill(pid, SIGTERM);
}
+void remove_pidfile(char *devname)
+{
+ char buf[100];
+
+ sprintf(buf, "/var/run/mdadm/%s.pid", devname);
+ unlink(buf);
+}
+
static int make_control_sock(char *devname)
{
char path[100];
return sfd;
}
+static void wake_me(int sig)
+{
+
+}
+
int main(int argc, char *argv[])
{
int mdfd;
struct mdinfo *mdi, *di;
struct supertype *container;
+ sigset_t set;
+ struct sigaction act;
+
if (argc != 2) {
fprintf(stderr, "Usage: md-manage /device/name/for/container\n");
exit(2);
/* hopefully it is a container - we'll check later */
container = malloc(sizeof(*container));
- container->devfd = mdfd;
container->devnum = fd2devnum(mdfd);
container->devname = devnum2devname(container->devnum);
+ container->device_name = argv[1];
/* If this fails, we hope it already exists */
mkdir("/var/run/mdadm", 0600);
argv[1]);
exit(3);
}
-
+ close(mdfd);
+ close(mdfd);
mlockall(MCL_FUTURE);
+ /* SIGUSR is sent between parent and child. So both block it
+ * and enable it only with pselect.
+ */
+ sigemptyset(&set);
+ sigaddset(&set, SIGUSR1);
+ sigprocmask(SIG_BLOCK, &set, NULL);
+ act.sa_handler = wake_me;
+ act.sa_flags = 0;
+ sigaction(SIGUSR1, &act, NULL);
+ act.sa_handler = SIG_IGN;
+ sigaction(SIGPIPE, &act, NULL);
+
if (clone_monitor(container) < 0) {
fprintf(stderr, "md-manage: failed to start monitor process: %s\n",
strerror(errno));