diff options
Diffstat (limited to 'usr/iscsi_sysfs.c')
| -rw-r--r-- | usr/iscsi_sysfs.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/usr/iscsi_sysfs.c b/usr/iscsi_sysfs.c index abefde2..7bb834a 100644 --- a/usr/iscsi_sysfs.c +++ b/usr/iscsi_sysfs.c @@ -1929,18 +1929,41 @@ void iscsi_sysfs_set_queue_depth(void *data, int hostno, int target, int lun) void iscsi_sysfs_set_device_online(__attribute__((unused))void *data, int hostno, int target, int lun) { - char *write_buf = "running\n"; + char *write_buf = "running\n", *state; char id[NAME_SIZE]; int err; snprintf(id, sizeof(id), "%d:0:%d:%d", hostno, target, lun); log_debug(4, "online device %s", id); + state = sysfs_get_value(id, SCSI_SUBSYS, "state"); + if (!state) { + log_error("Could not read state for LUN %s\n", id); + goto set_state; + } + + if (!strcmp(state, "running")) + goto done; + /* + * The kernel can start to perform session level recovery cleanup + * any time after the conn start call, so we only want to change the + * state if we are in one of the offline states. + */ + if (strcmp(state, "offline") && strcmp(state, "transport-offline")) { + log_debug(4, "Dev not offline. Skip onlining %s", id); + goto done; + } + +set_state: err = sysfs_set_param(id, SCSI_SUBSYS, "state", write_buf, strlen(write_buf)); if (err && err != EINVAL) /* we should read the state */ log_error("Could not online LUN %d err %d.", lun, err); + +done: + if (state) + free(state); } void iscsi_sysfs_rescan_device(__attribute__((unused))void *data, |