#include <sys/utsname.h>
#include <ctype.h>
#include <dirent.h>
+#include <signal.h>
/*
* following taken from linux/blkpg.h because they aren't
unlink(name);
}
-static int dev2major(int d)
-{
- if (d >= 0)
- return MD_MAJOR;
- else
- return get_mdp_major();
-}
-
-static int dev2minor(int d)
-{
- if (d >= 0)
- return d;
- return (-1-d) << MdpMinorShift;
-}
-
int find_free_devnum(int use_partitions)
{
int devnum;
if (e > dev && *e == ':' && e[1] &&
(minor = strtoul(e+1, &e, 0)) >= 0 &&
*e == 0) {
- snprintf(devname, sizeof(devname), "/dev/.tmp.md.%d:%d", major, minor);
+ snprintf(devname, sizeof(devname), "/dev/.tmp.md.%d:%d:%d",
+ (int)getpid(), major, minor);
if (mknod(devname, S_IFBLK|0600, makedev(major, minor))==0) {
fd = open(devname, flags);
unlink(devname);
return fd;
}
-struct superswitch *superlist[] = { &super0, &super1, &super_ddf, NULL };
+int open_dev_excl(int devnum)
+{
+ char buf[20];
+ int i;
+
+ sprintf(buf, "%d:%d", dev2major(devnum), dev2minor(devnum));
+ for (i=0 ; i<25 ; i++) {
+ int fd = dev_open(buf, O_RDWR|O_EXCL);
+ if (fd >= 0)
+ return fd;
+ if (errno != EBUSY)
+ return fd;
+ usleep(200000);
+ }
+ return -1;
+}
+
+struct superswitch *superlist[] = { &super0, &super1, &super_ddf, &super_imsm, NULL };
#if !defined(MDASSEMBLE) || defined(MDASSEMBLE) && defined(MDASSEMBLE_AUTO)
+
+struct supertype supertype_container_member;
+
struct supertype *super_by_fd(int fd)
{
mdu_array_info_t array;
sprintf(version, "%d.%d", vers, minor);
verstr = version;
}
- for (i = 0; st == NULL && superlist[i] ; i++)
- st = superlist[i]->match_metadata_desc(verstr);
+ if (minor == -2 && verstr[0] == '/')
+ st = &supertype_container_member;
+ else
+ for (i = 0; st == NULL && superlist[i] ; i++)
+ st = superlist[i]->match_metadata_desc(verstr);
if (sra)
sysfs_free(sra);
return dfd;
}
}
+ closedir(dir);
return -1;
}
return -1;
}
+int mdmon_running(int devnum)
+{
+ char path[100];
+ char pid[10];
+ int fd;
+ int n;
+ sprintf(path, "/var/run/mdadm/%s.pid", devnum2devname(devnum));
+ fd = open(path, O_RDONLY, 0);
+
+ if (fd < 0)
+ return 0;
+ n = read(fd, pid, 9);
+ close(fd);
+ if (n <= 0)
+ return 0;
+ if (kill(atoi(pid), 0) == 0)
+ return 1;
+ return 0;
+}
+
+int signal_mdmon(int devnum)
+{
+ char path[100];
+ char pid[10];
+ int fd;
+ int n;
+ sprintf(path, "/var/run/mdadm/%s.pid", devnum2devname(devnum));
+ fd = open(path, O_RDONLY, 0);
+
+ if (fd < 0)
+ return 0;
+ n = read(fd, pid, 9);
+ close(fd);
+ if (n <= 0)
+ return 0;
+ if (kill(atoi(pid), SIGUSR1) == 0)
+ return 1;
+ return 0;
+}
+
+
+
#ifdef __TINYC__
/* tinyc doesn't optimize this check in ioctl.h out ... */
unsigned int __invalid_size_argument_for_IOC = 0;