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Scan for all devices in the SMART report

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This commit is contained in:
Andrea Mazzoleni 2015-01-16 18:52:31 +01:00
parent 951e4e5c98
commit 80982a8455
2 changed files with 95 additions and 5 deletions
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2
cmdline/portable.h
View file

@ -350,7 +350,7 @@ typedef struct devinfo_struct devinfo_t;
* Query all the "high" level devices with the specified operation,
* and produces a list of "low" level devices to operate on.
*
* The resulting "low" device list must be already initialized.
* The passed "low" device list must be already initialized.
*/
int devquery(tommy_list* high, tommy_list* low, int operation);

98
cmdline/unix.c
View file

@ -499,12 +499,11 @@ static int devtree(const char* name, dev_t device, devinfo_t* parent, tommy_list
/* if no slaves found */
if (!slaves) {
/* this is a raw device */
struct stat st;
devinfo_t* devinfo;
/* check if it's a partition */
pathprint(path, sizeof(path), "/sys/dev/block/%u:%u/partition", major(device), minor(device));
if (stat(path, &st) == 0) {
/* check if it's a real device */
pathprint(path, sizeof(path), "/sys/dev/block/%u:%u/device", major(device), minor(device));
if (access(path, F_OK) != 0) {
/* get the parent device */
pathprint(path, sizeof(path), "/sys/dev/block/%u:%u/../dev", major(device), minor(device));
@ -538,6 +537,85 @@ static int devtree(const char* name, dev_t device, devinfo_t* parent, tommy_list
}
#endif
/**
* Scan all the devices.
*
* If a device is already in, it's not added again.
*/
#if HAVE_LINUX_DEVICE
static int devscan(tommy_list* list)
{
char dir[PATH_MAX];
DIR* d;
struct dirent* dd;
pathprint(dir, sizeof(dir), "/sys/dev/block/");
/* check if there is a slaves list */
d = opendir(dir);
if (d == 0) {
/* LCOV_EXCL_START */
fprintf(stderr, "Failed to open dir '%s'.\n", dir);
return -1;
/* LCOV_EXCL_STOP */
}
while ((dd = readdir(d)) != 0) {
if (dd->d_name[0] != '.') {
char path[PATH_MAX];
pathprint(path, sizeof(path), "/sys/dev/block/%s/device", dd->d_name);
/* check if it's a real device */
if (access(path, F_OK) == 0) {
tommy_node* i;
dev_t device;
pathprint(path, sizeof(path), "/sys/dev/block/%s/dev", dd->d_name);
device = devread(path);
if (!device) {
/* LCOV_EXCL_START */
return -1;
/* LCOV_EXCL_STOP */
}
/* check if already present */
for (i = tommy_list_head(list); i != 0; i = i->next) {
devinfo_t* devinfo = i->data;
if (devinfo->device == device)
break;
}
/* if not found */
if (i == 0) {
devinfo_t* devinfo;
/* get the device file */
if (devresolve(device, path, sizeof(path)) != 0) {
/* LCOV_EXCL_START */
return -1;
/* LCOV_EXCL_STOP */
}
devinfo = calloc_nofail(1, sizeof(devinfo_t));
devinfo->device = device;
pathcpy(devinfo->file, sizeof(devinfo->file), path);
/* insert in the list */
tommy_list_insert_tail(list, &devinfo->node, devinfo);
}
}
}
}
closedir(d);
return 0;
}
#endif
/**
* Gets SMART attributes.
*/
@ -910,6 +988,18 @@ int devquery(tommy_list* high, tommy_list* low, int operation)
free(tommy_list_remove_existing(low, i->next));
}
#if HAVE_LINUX_DEVICE
/* add other devices */
if (operation == DEVICE_SMART) {
if (devscan(low) != 0) {
/* LCOV_EXCL_START */
fprintf(stderr, "Failed to list other devices.\n");
return -1;
/* LCOV_EXCL_STOP */
}
}
#endif
switch (operation) {
case DEVICE_UP : func = thread_spinup; break;
case DEVICE_DOWN : func = thread_spindown; break;