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Fallback to rotational in devpower if sysfs attribute is unknown

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This commit is contained in:
Andrea Mazzoleni 2026-08-06 22:56:37 +02:00
parent f3c3265116
commit c4511e28bc
1 changed files with 11 additions and 28 deletions
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39
cmdline/unixapp.c
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@ -430,7 +430,7 @@ next:
* Read a file from sys.
* Trim spaces.
* Always put an ending 0.
* Do not report error on reading.
* Do not log error on reading.
* Return an error if truncated
*
* Return -1 on error, 0 on success
@ -2896,24 +2896,16 @@ static void devattr(dev_t device, uint64_t* info, char* serial, char* family, ch
if (info[INFO_SIZE] == SMART_UNASSIGNED) {
pathprint(path, sizeof(path), "/sys/dev/block/%u:%u/size", major(device), minor(device));
if (sysattr(path, buf, sizeof(buf)) == 0) {
char* e;
uint64_t v;
v = strtoul(buf, &e, 10);
if (*e == 0)
info[INFO_SIZE] = v * 512;
}
long long v = syslong(path);
if (v >= 0)
info[INFO_SIZE] = v * 512;
}
if (info[INFO_ROTATION_RATE] == SMART_UNASSIGNED) {
pathprint(path, sizeof(path), "/sys/dev/block/%u:%u/queue/rotational", major(device), minor(device));
if (sysattr(path, buf, sizeof(buf)) == 0) {
char* e;
uint64_t v;
v = strtoul(buf, &e, 10);
if (*e == 0)
info[INFO_ROTATION_RATE] = v;
}
long long v = syslong(path);
if (v >= 0)
info[INFO_ROTATION_RATE] = v;
}
if (*model == 0) {
@ -3200,22 +3192,13 @@ static int devdownifup(dev_t device, const char* name, const char* smartctl, con
static int devpower(dev_t device)
{
char path[PATH_MAX];
char buf[512];
uint64_t rotational;
rotational = SMART_UNASSIGNED;
long long rotational;
pathprint(path, sizeof(path), "/sys/dev/block/%u:%u/queue/rotational", major(device), minor(device));
if (sysattr(path, buf, sizeof(buf)) == 0) {
char* e;
uint64_t v;
v = strtoul(buf, &e, 10);
if (*e == 0)
rotational = v;
}
rotational = syslong(path);
if (rotational == SMART_UNASSIGNED)
return 0; /* assume not rotational */
if (rotational < 0)
return 1; /* assume rotational if unknown */
return rotational != 0;
}