#include "md_p.h"
#include <sys/socket.h>
#include <sys/utsname.h>
+#include <sys/wait.h>
#include <sys/un.h>
#include <ctype.h>
#include <dirent.h>
int devnum;
if (subarray)
*subarray++ = '\0';
- if (strncmp(dev, "md_d", 4) == 0)
- devnum = -1-atoi(dev+4);
- else
- devnum = atoi(dev+2);
+ devnum = devname2devnum(dev);
subarray = strdup(subarray);
if (sra)
sysfs_free(sra);
return strdup(name);
}
+int devname2devnum(char *name)
+{
+ char *ep;
+ int num;
+ if (strncmp(name, "md_d", 4)==0)
+ num = -1-strtoul(name+4, &ep, 10);
+ else
+ num = strtoul(name+2, &ep, 10);
+ return num;
+}
+
int fd2devnum(int fd)
{
struct stat stb;
return 0;
}
+int start_mdmon(int devnum)
+{
+ int i;
+ int len;
+ pid_t pid;
+ int status;
+ char pathbuf[1024];
+ char *paths[4] = {
+ pathbuf,
+ "/sbin/mdmon",
+ "mdmon",
+ NULL
+ };
+
+ if (env_no_mdmon())
+ return 0;
+
+ len = readlink("/proc/self/exe", pathbuf, sizeof(pathbuf));
+ if (len > 0) {
+ char *sl;
+ pathbuf[len] = 0;
+ sl = strrchr(pathbuf, '/');
+ if (sl)
+ sl++;
+ else
+ sl = pathbuf;
+ strcpy(sl, "mdmon");
+ } else
+ pathbuf[0] = '\0';
+
+ switch(fork()) {
+ case 0:
+ /* FIXME yuk. CLOSE_EXEC?? */
+ for (i=3; i < 100; i++)
+ close(i);
+ for (i=0; paths[i]; i++)
+ if (paths[i][0])
+ execl(paths[i], "mdmon",
+ map_dev(dev2major(devnum),
+ dev2minor(devnum),
+ 1), NULL);
+ exit(1);
+ case -1: fprintf(stderr, Name ": cannot run mdmon. "
+ "Array remains readonly\n");
+ return -1;
+ default: /* parent - good */
+ pid = wait(&status);
+ if (pid < 0 || status != 0)
+ return -1;
+ }
+ return 0;
+}
+
+int env_no_mdmon(void)
+{
+ char *val = getenv("MDADM_NO_MDMON");
+
+ if (val && atoi(val) == 1)
+ return 1;
+
+ return 0;
+}
+
int flush_metadata_updates(struct supertype *st)
{