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authorNeilBrown <neilb@suse.de>2008-11-04 20:50:38 +1100
committerNeilBrown <neilb@suse.de>2008-11-04 20:50:38 +1100
commit215bb3f77627d818d5bc3eaca190212d491e1fcf (patch)
treeeaf98beb68dc96c0a0d7114f42d7a0f0c98d0d62 /mdopen.c
parentc4fe2d4f5640ebbdad141cbff4e3e5ba62c32537 (diff)
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Incremental: adjust to the new naming scheme.
--incremental now uses exactly the same create_mddev that other code uses.
Diffstat (limited to 'mdopen.c')
-rw-r--r--mdopen.c80
1 files changed, 0 insertions, 80 deletions
diff --git a/mdopen.c b/mdopen.c
index 4c0714d..ae3620a 100644
--- a/mdopen.c
+++ b/mdopen.c
@@ -360,83 +360,3 @@ int open_mddev(char *dev, int report_errors)
}
return mdfd;
}
-
-
-int create_mddev_devnum(char *devname, int devnum, char *name,
- char *chosen_name, int parts)
-{
- /* Open the md device with number 'devnum', possibly using 'devname',
- * possibly constructing a name with 'name', but in any case, copying
- * the name into 'chosen_name'
- */
- int major_num, minor_num;
- struct stat stb;
- int i;
- struct createinfo *ci = conf_get_create_info();
-
- if (devname)
- strcpy(chosen_name, devname);
- else if (name && *name && name[0] && strchr(name,'/') == NULL) {
- char *n = strchr(name, ':');
- if (n) n++; else n = name;
- if (isdigit(*n) && devnum < 0)
- sprintf(chosen_name, "/dev/md/d%s", n);
- else
- sprintf(chosen_name, "/dev/md/%s", n);
- } else {
- if (devnum >= 0)
- sprintf(chosen_name, "/dev/md%d", devnum);
- else
- sprintf(chosen_name, "/dev/md/d%d", -1-devnum);
- }
- if (devnum >= 0) {
- major_num = MD_MAJOR;
- minor_num = devnum;
- } else {
- major_num = get_mdp_major();
- minor_num = (-1-devnum) << 6;
- }
- if (stat(chosen_name, &stb) == 0) {
- /* It already exists. Check it is right. */
- if ( ! S_ISBLK(stb.st_mode) ||
- stb.st_rdev != makedev(major_num, minor_num)) {
- errno = EEXIST;
- return -1;
- }
- } else {
- /* special case: if --incremental is suggesting a name
- * in /dev/md/, we make sure the directory exists.
- */
- if (strncmp(chosen_name, "/dev/md/", 8) == 0) {
- if (mkdir("/dev/md",0700)==0) {
- if (chown("/dev/md", ci->uid, ci->gid))
- perror("chown /dev/md");
- if (chmod("/dev/md", ci->mode|
- ((ci->mode>>2) & 0111)))
- perror("chmod /dev/md");
- }
- }
-
- if (mknod(chosen_name, S_IFBLK | 0600,
- makedev(major_num, minor_num)) != 0) {
- return -1;
- }
- /* FIXME chown/chmod ?? */
- }
-
- /* Simple locking to avoid --incr being called for the same
- * array multiple times in parallel.
- */
- for (i = 0; i < 25 ; i++) {
- int fd;
-
- fd = open(chosen_name, O_RDWR|O_EXCL);
- if (fd >= 0 || errno != EBUSY) {
- if (devnum < 0)
- make_parts(chosen_name, parts);
- return fd;
- }
- usleep(200000);
- }
- return -1;
-}