void sysfs_init(struct mdinfo *mdi, int fd, char *devnm)
{
+ struct stat stb;
+ char fname[MAX_SYSFS_PATH_LEN];
+
mdi->sys_name[0] = 0;
- if (fd >= 0) {
- mdu_version_t vers;
- if (ioctl(fd, RAID_VERSION, &vers) != 0)
- return;
+ if (fd >= 0)
devnm = fd2devnm(fd);
- }
+
if (devnm == NULL)
return;
+
+ snprintf(fname, MAX_SYSFS_PATH_LEN, "/sys/block/%s/md", devnm);
+
+ if (stat(fname, &stb))
+ return;
+ if (!S_ISDIR(stb.st_mode))
+ return;
strcpy(mdi->sys_name, devnm);
}
} else
sra->sysfs_array_state[0] = 0;
+ if (options & GET_CONSISTENCY_POLICY) {
+ strcpy(base, "consistency_policy");
+ if (load_sys(fname, buf, sizeof(buf))) {
+ sra->consistency_policy = CONSISTENCY_POLICY_UNKNOWN;
+ } else {
+ sra->consistency_policy = map_name(consistency_policies, buf);
+ if (sra->consistency_policy == UnSet)
+ sra->consistency_policy = CONSISTENCY_POLICY_UNKNOWN;
+ }
+ }
+
if (! (options & GET_DEVS))
return sra;
* once the reshape completes.
*/
}
+
+ if (info->consistency_policy == CONSISTENCY_POLICY_PPL) {
+ if (sysfs_set_str(info, NULL, "consistency_policy",
+ map_num(consistency_policies,
+ info->consistency_policy))) {
+ pr_err("This kernel does not support PPL\n");
+ return 1;
+ }
+ }
+
return rv;
}
rv = sysfs_set_num(sra, sd, "offset", sd->data_offset);
rv |= sysfs_set_num(sra, sd, "size", (sd->component_size+1) / 2);
if (sra->array.level != LEVEL_CONTAINER) {
+ if (sd->consistency_policy == CONSISTENCY_POLICY_PPL) {
+ rv |= sysfs_set_num(sra, sd, "ppl_sector", sd->ppl_sector);
+ rv |= sysfs_set_num(sra, sd, "ppl_size", sd->ppl_size);
+ }
if (sd->recovery_start == MaxSector)
/* This can correctly fail if array isn't started,
* yet, so just ignore status for now.