sizeof(mdi->sys_name), "dev-%s", devid2kname(devid));
}
-void sysfs_init(struct mdinfo *mdi, int fd, char *devnm)
+int sysfs_init(struct mdinfo *mdi, int fd, char *devnm)
{
+ struct stat stb;
+ char fname[MAX_SYSFS_PATH_LEN];
+ int retval = -ENODEV;
+
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;
+ goto out;
+
+ snprintf(fname, MAX_SYSFS_PATH_LEN, "/sys/block/%s/md", devnm);
+
+ if (stat(fname, &stb))
+ goto out;
+ if (!S_ISDIR(stb.st_mode))
+ goto out;
strcpy(mdi->sys_name, devnm);
+
+ retval = 0;
+out:
+ return retval;
}
struct mdinfo *sysfs_read(int fd, char *devnm, unsigned long options)
struct dirent *de;
sra = xcalloc(1, sizeof(*sra));
- sysfs_init(sra, fd, devnm);
- if (sra->sys_name[0] == 0) {
+ if (sysfs_init(sra, fd, devnm)) {
free(sra);
return NULL;
}
if (options & GET_ARRAY_STATE) {
strcpy(base, "array_state");
- if (load_sys(fname, sra->sysfs_array_state,
- sizeof(sra->sysfs_array_state)))
+ if (load_sys(fname, buf, sizeof(buf)))
goto abort;
- } else
- sra->sysfs_array_state[0] = 0;
+ sra->array_state = map_name(sysfs_array_states, buf);
+ }
+
+ 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 (! (options & GET_DEVS))
return sra;
if (!dir)
goto abort;
sra->array.spare_disks = 0;
+ sra->array.active_disks = 0;
+ sra->array.failed_disks = 0;
devp = &sra->devs;
sra->devs = NULL;
strcpy(dbase, "state");
if (load_sys(fname, buf, sizeof(buf)))
goto abort;
- if (strstr(buf, "in_sync"))
+ if (strstr(buf, "in_sync")) {
dev->disk.state |= (1<<MD_DISK_SYNC);
- if (strstr(buf, "faulty"))
+ sra->array.active_disks++;
+ }
+ if (strstr(buf, "faulty")) {
dev->disk.state |= (1<<MD_DISK_FAULTY);
+ sra->array.failed_disks++;
+ }
if (dev->disk.state == 0)
sra->array.spare_disks++;
}
int n;
if (fstat(fd, &stb))
return 0;
- if (major(stb.st_rdev) != (unsigned)get_mdp_major())
- snprintf(fname, MAX_SYSFS_PATH_LEN,
- "/sys/block/md%d/md/component_size",
- (int)minor(stb.st_rdev));
- else
- snprintf(fname, MAX_SYSFS_PATH_LEN,
- "/sys/block/md_d%d/md/component_size",
- (int)minor(stb.st_rdev)>>MdpMinorShift);
+ snprintf(fname, MAX_SYSFS_PATH_LEN,
+ "/sys/block/%s/md/component_size", stat2devnm(&stb));
fd = open(fname, O_RDONLY);
if (fd < 0)
return 0;
* 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.