#include <fcntl.h>
#include <signal.h>
#include <dirent.h>
-
+#ifdef USE_PTHREADS
+#include <pthread.h>
+#else
#include <sched.h>
+#endif
#include "mdadm.h"
#include "mdmon.h"
int sigterm;
-int run_child(void *v)
+#ifdef USE_PTHREADS
+static void *run_child(void *v)
+{
+ struct supertype *c = v;
+
+ mon_tid = syscall(SYS_gettid);
+ do_monitor(c);
+ return 0;
+}
+
+static int clone_monitor(struct supertype *container)
+{
+ pthread_attr_t attr;
+ pthread_t thread;
+ int rc;
+
+ mon_tid = -1;
+ pthread_attr_init(&attr);
+ pthread_attr_setstacksize(&attr, 4096);
+ pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+ rc = pthread_create(&thread, &attr, run_child, container);
+ if (rc)
+ return rc;
+ while (mon_tid == -1)
+ usleep(10);
+ pthread_attr_destroy(&attr);
+
+ mgr_tid = syscall(SYS_gettid);
+
+ return mon_tid;
+}
+#else /* USE_PTHREADS */
+static int run_child(void *v)
{
struct supertype *c = v;
int flags, void *arg, ...
/* pid_t *pid, struct user_desc *tls, pid_t *ctid */ );
#endif
- int clone_monitor(struct supertype *container)
+static int clone_monitor(struct supertype *container)
{
static char stack[4096];
return mon_tid;
}
+#endif /* USE_PTHREADS */
static int make_pidfile(char *devname)
{
int fd;
int n;
- if (mkdir(pid_dir, 0700) < 0 &&
+ if (mkdir(MDMON_DIR, 0755) < 0 &&
errno != EEXIST)
return -errno;
- sprintf(path, "%s/%s.pid", pid_dir, devname);
+ sprintf(path, "%s/%s.pid", MDMON_DIR, devname);
fd = open(path, O_RDWR|O_CREAT|O_EXCL, 0600);
if (fd < 0)
{
char buf[100];
- sprintf(buf, "%s/%s.pid", pid_dir, devname);
+ sprintf(buf, "%s/%s.pid", MDMON_DIR, devname);
unlink(buf);
- sprintf(buf, "%s/%s.sock", pid_dir, devname);
+ sprintf(buf, "%s/%s.sock", MDMON_DIR, devname);
unlink(buf);
- if (strcmp(pid_dir, ALT_RUN) == 0)
- /* try to clean up when we are finished with this dir */
- rmdir(pid_dir);
}
static int make_control_sock(char *devname)
if (sigterm)
return -1;
- sprintf(path, "%s/%s.sock", pid_dir, devname);
+ sprintf(path, "%s/%s.sock", MDMON_DIR, devname);
unlink(path);
sfd = socket(PF_LOCAL, SOCK_STREAM, 0);
if (sfd < 0)
/* update cmdline so this mdmon instance can be
* distinguished from others in a call to ps(1)
*/
- if (strlen(devname) <= container_len) {
+ if (strlen(devname) <= (unsigned)container_len) {
memset(container_name, 0, container_len);
sprintf(container_name, "%s", devname);
}
exit(3);
}
- mdi = sysfs_read(mdfd, container->devnum,
- GET_VERSION|GET_LEVEL|GET_DEVS|SKIP_GONE_DEVS);
+ mdi = sysfs_read(mdfd, container->devnum, GET_VERSION|GET_LEVEL|GET_DEVS);
if (!mdi) {
fprintf(stderr, "mdmon: failed to load sysfs info for %s\n",
act.sa_handler = SIG_IGN;
sigaction(SIGPIPE, &act, NULL);
- pid_dir = VAR_RUN;
victim = mdmon_pid(container->devnum);
- if (victim < 0) {
- pid_dir = ALT_RUN;
- victim = mdmon_pid(container->devnum);
- }
if (victim >= 0)
victim_sock = connect_monitor(container->devname);
*/
if (victim > 0)
remove_pidfile(devname);
- pid_dir = VAR_RUN;
if (make_pidfile(devname) < 0) {
- /* Try the alternate */
- pid_dir = ALT_RUN;
- if (make_pidfile(devname) < 0) {
- fprintf(stderr, "mdmon: Neither %s nor %s are writable\n"
- " cannot create .pid or .sock files. Aborting\n",
- VAR_RUN, ALT_RUN);
- exit(3);
- }
+ exit(3);
}
container->sock = make_control_sock(devname);