diff options
| -rw-r--r-- | src/udiskslinuxdriveata.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/src/udiskslinuxdriveata.c b/src/udiskslinuxdriveata.c index 9148dee..3b03874 100644 --- a/src/udiskslinuxdriveata.c +++ b/src/udiskslinuxdriveata.c @@ -88,6 +88,7 @@ struct _UDisksLinuxDriveAta UDisksThreadedJob *selftest_job; gboolean secure_erase_in_progress; + unsigned long drive_read, drive_write; }; struct _UDisksLinuxDriveAtaClass @@ -556,11 +557,39 @@ udisks_linux_drive_ata_refresh_smart_sync (UDisksLinuxDriveAta *drive, else { guchar count; + gchar stat_path[PATH_MAX]; + unsigned long drive_read, drive_write; + FILE *statf; + gboolean no_io = FALSE; + if (!get_pm_state(device, error, &count)) goto out; awake = count == 0xFF || count == 0x80; + + snprintf (stat_path, sizeof (stat_path), "%s/stat", g_udev_device_get_sysfs_path (device->udev_device)); + statf = fopen (stat_path, "r"); + if (statf == NULL) + { + udisks_warning ("Failed to open %s", stat_path); + } + else + { + int res = fscanf (statf, "%lu %*u %*u %*u %lu", &drive_read, &drive_write); + fclose (statf); + + if (res == 2) + { + no_io = (drive_read == drive->drive_read && drive_write == drive->drive_write); + udisks_debug ("drive_read=%lu, drive_write=%lu, old drive_read=%lu, old drive_write=%lu\n", + drive_read, drive_write, drive->drive_read, drive->drive_write); + drive->drive_read = drive_read; + drive->drive_write = drive_write; + } else { + udisks_warning ("Failed to parse %s, only got %i items", stat_path, res); + } + } /* don't wake up disk unless specically asked to */ - if (nowakeup && !awake) + if (nowakeup && (!awake || no_io)) { g_set_error (error, UDISKS_ERROR, |