/* temporary for testing */
static int mdc_wr_kuc(struct file *file, const char *buffer,
unsigned long count, void *data)
{
struct obd_device *obd = data;
struct kuc_hdr *lh;
struct hsm_action_list *hal;
struct hsm_action_item *hai;
int len;
int fd, rc;
ENTRY;
rc = lprocfs_write_helper(buffer, count, &fd);
if (rc)
RETURN(rc);
if (fd < 0)
RETURN(-ERANGE);
CWARN("message to fd %d\n", fd);
len = sizeof(*lh) + sizeof(*hal) + MTI_NAME_MAXLEN +
/* for mockup below */ 2 * cfs_size_round(sizeof(*hai));
OBD_ALLOC(lh, len);
lh->kuc_magic = KUC_MAGIC;
lh->kuc_transport = KUC_TRANSPORT_HSM;
lh->kuc_msgtype = HMT_ACTION_LIST;
lh->kuc_msglen = len;
hal = (struct hsm_action_list *)(lh + 1);
hal->hal_version = HAL_VERSION;
hal->hal_archive_id = 1;
hal->hal_flags = 0;
obd_uuid2fsname(hal->hal_fsname, obd->obd_name, MTI_NAME_MAXLEN);
/* mock up an action list */
hal->hal_count = 2;
hai = hai_zero(hal);
hai->hai_action = HSMA_ARCHIVE;
hai->hai_fid.f_oid = 5;
hai->hai_len = sizeof(*hai);
hai = hai_next(hai);
hai->hai_action = HSMA_RESTORE;
hai->hai_fid.f_oid = 10;
hai->hai_len = sizeof(*hai);
/* This works for either broadcast or unicast to a single fd */
if (fd == 0) {
rc = libcfs_kkuc_group_put(KUC_GRP_HSM, lh);
} else {
cfs_file_t *fp = cfs_get_fd(fd);
rc = libcfs_kkuc_msg_put(fp, lh);
cfs_put_file(fp);
}
OBD_FREE(lh, len);
if (rc < 0)
RETURN(rc);
RETURN(count);
}
/**
* Retrieve undergoing HSM requests for the fid provided in RPC body.
* Current requests are read from coordinator states.
*
* This is MDS_HSM_ACTION RPC handler.
*/
int mdt_hsm_action(struct tgt_session_info *tsi)
{
struct mdt_thread_info *info;
struct hsm_current_action *hca;
struct hsm_action_list *hal = NULL;
struct hsm_action_item *hai;
int hal_size;
int rc;
ENTRY;
hca = req_capsule_server_get(tsi->tsi_pill,
&RMF_MDS_HSM_CURRENT_ACTION);
if (hca == NULL)
RETURN(err_serious(-EPROTO));
if (tsi->tsi_mdt_body == NULL)
RETURN(-EPROTO);
info = tsi2mdt_info(tsi);
/* Only valid if client is remote */
rc = mdt_init_ucred(info, (struct mdt_body *)info->mti_body);
if (rc)
GOTO(out, rc = err_serious(rc));
/* Coordinator information */
hal_size = sizeof(*hal) +
cfs_size_round(MTI_NAME_MAXLEN) /* fsname */ +
cfs_size_round(sizeof(*hai));
MDT_HSM_ALLOC(hal, hal_size);
if (hal == NULL)
GOTO(out_ucred, rc = -ENOMEM);
hal->hal_version = HAL_VERSION;
hal->hal_archive_id = 0;
hal->hal_flags = 0;
obd_uuid2fsname(hal->hal_fsname, mdt_obd_name(info->mti_mdt),
MTI_NAME_MAXLEN);
hal->hal_count = 1;
hai = hai_first(hal);
hai->hai_action = HSMA_NONE;
hai->hai_cookie = 0;
hai->hai_gid = 0;
hai->hai_fid = info->mti_body->mbo_fid1;
hai->hai_len = sizeof(*hai);
rc = mdt_hsm_get_actions(info, hal);
if (rc)
GOTO(out_free, rc);
/* cookie is used to give back request status */
if (hai->hai_cookie == 0)
hca->hca_state = HPS_WAITING;
else
hca->hca_state = HPS_RUNNING;
switch (hai->hai_action) {
case HSMA_NONE:
hca->hca_action = HUA_NONE;
break;
case HSMA_ARCHIVE:
hca->hca_action = HUA_ARCHIVE;
break;
case HSMA_RESTORE:
hca->hca_action = HUA_RESTORE;
break;
case HSMA_REMOVE:
hca->hca_action = HUA_REMOVE;
break;
case HSMA_CANCEL:
hca->hca_action = HUA_CANCEL;
break;
default:
hca->hca_action = HUA_NONE;
CERROR("%s: Unknown hsm action: %d on "DFID"\n",
mdt_obd_name(info->mti_mdt),
hai->hai_action, PFID(&hai->hai_fid));
break;
}
hca->hca_location = hai->hai_extent;
EXIT;
out_free:
MDT_HSM_FREE(hal, hal_size);
out_ucred:
mdt_exit_ucred(info);
out:
mdt_thread_info_fini(info);
return rc;
}
/**
* Process the HSM actions described in a struct hsm_user_request.
*
* The action described in hur will be send to coordinator to be saved and
* processed later or either handled directly if hur.hur_action is HUA_RELEASE.
*
* This is MDS_HSM_REQUEST RPC handler.
*/
int mdt_hsm_request(struct tgt_session_info *tsi)
{
struct mdt_thread_info *info;
struct req_capsule *pill = tsi->tsi_pill;
struct hsm_request *hr;
struct hsm_user_item *hui;
struct hsm_action_list *hal;
struct hsm_action_item *hai;
const void *data;
int hui_list_size;
int data_size;
enum hsm_copytool_action action = HSMA_NONE;
__u64 compound_id;
int hal_size, i, rc;
ENTRY;
hr = req_capsule_client_get(pill, &RMF_MDS_HSM_REQUEST);
hui = req_capsule_client_get(pill, &RMF_MDS_HSM_USER_ITEM);
data = req_capsule_client_get(pill, &RMF_GENERIC_DATA);
if (tsi->tsi_mdt_body == NULL || hr == NULL || hui == NULL || data == NULL)
RETURN(-EPROTO);
/* Sanity check. Nothing to do with an empty list */
if (hr->hr_itemcount == 0)
RETURN(0);
hui_list_size = req_capsule_get_size(pill, &RMF_MDS_HSM_USER_ITEM,
RCL_CLIENT);
if (hui_list_size < hr->hr_itemcount * sizeof(*hui))
RETURN(-EPROTO);
data_size = req_capsule_get_size(pill, &RMF_GENERIC_DATA, RCL_CLIENT);
if (data_size != hr->hr_data_len)
RETURN(-EPROTO);
info = tsi2mdt_info(tsi);
/* Only valid if client is remote */
rc = mdt_init_ucred(info, (struct mdt_body *)info->mti_body);
if (rc)
GOTO(out, rc);
switch (hr->hr_action) {
/* code to be removed in hsm1_merge and final patch */
case HUA_RELEASE:
CERROR("Release action is not working in hsm1_coord\n");
GOTO(out_ucred, rc = -EINVAL);
break;
/* end of code to be removed */
case HUA_ARCHIVE:
action = HSMA_ARCHIVE;
break;
case HUA_RESTORE:
action = HSMA_RESTORE;
break;
case HUA_REMOVE:
action = HSMA_REMOVE;
break;
case HUA_CANCEL:
action = HSMA_CANCEL;
break;
default:
CERROR("Unknown hsm action: %d\n", hr->hr_action);
GOTO(out_ucred, rc = -EINVAL);
}
hal_size = sizeof(*hal) + cfs_size_round(MTI_NAME_MAXLEN) /* fsname */ +
(sizeof(*hai) + cfs_size_round(hr->hr_data_len)) *
hr->hr_itemcount;
MDT_HSM_ALLOC(hal, hal_size);
if (hal == NULL)
GOTO(out_ucred, rc = -ENOMEM);
hal->hal_version = HAL_VERSION;
hal->hal_archive_id = hr->hr_archive_id;
hal->hal_flags = hr->hr_flags;
obd_uuid2fsname(hal->hal_fsname, mdt_obd_name(info->mti_mdt),
MTI_NAME_MAXLEN);
hal->hal_count = 0;
hai = hai_first(hal);
for (i = 0; i < hr->hr_itemcount; i++, hai = hai_next(hai)) {
/* Get rid of duplicate entries. Otherwise we get
* duplicated work in the llog. */
if (is_fid_in_hal(hal, &hui[i].hui_fid))
continue;
hai->hai_action = action;
hai->hai_cookie = 0;
hai->hai_gid = 0;
hai->hai_fid = hui[i].hui_fid;
hai->hai_extent = hui[i].hui_extent;
memcpy(hai->hai_data, data, hr->hr_data_len);
hai->hai_len = sizeof(*hai) + hr->hr_data_len;
hal->hal_count++;
}
rc = mdt_hsm_add_actions(info, hal, &compound_id);
MDT_HSM_FREE(hal, hal_size);
GOTO(out_ucred, rc);
out_ucred:
mdt_exit_ucred(info);
out:
mdt_thread_info_fini(info);
return rc;
}
/* temporary for testing */
static ssize_t mdc_kuc_write(struct file *file,
const char __user *buffer,
size_t count, loff_t *off)
{
struct obd_device *obd =
((struct seq_file *)file->private_data)->private;
struct kuc_hdr *lh;
struct hsm_action_list *hal;
struct hsm_action_item *hai;
int len;
int fd, rc;
rc = lprocfs_write_helper(buffer, count, &fd);
if (rc)
return rc;
if (fd < 0)
return -ERANGE;
CWARN("message to fd %d\n", fd);
len = sizeof(*lh) + sizeof(*hal) + MTI_NAME_MAXLEN +
/* for mockup below */ 2 * cfs_size_round(sizeof(*hai));
OBD_ALLOC(lh, len);
if (!lh)
return -ENOMEM;
lh->kuc_magic = KUC_MAGIC;
lh->kuc_transport = KUC_TRANSPORT_HSM;
lh->kuc_msgtype = HMT_ACTION_LIST;
lh->kuc_msglen = len;
hal = (struct hsm_action_list *)(lh + 1);
hal->hal_version = HAL_VERSION;
hal->hal_archive_id = 1;
hal->hal_flags = 0;
obd_uuid2fsname(hal->hal_fsname, obd->obd_name, MTI_NAME_MAXLEN);
/* mock up an action list */
hal->hal_count = 2;
hai = hai_zero(hal);
hai->hai_action = HSMA_ARCHIVE;
hai->hai_fid.f_oid = 5;
hai->hai_len = sizeof(*hai);
hai = hai_next(hai);
hai->hai_action = HSMA_RESTORE;
hai->hai_fid.f_oid = 10;
hai->hai_len = sizeof(*hai);
/* This works for either broadcast or unicast to a single fd */
if (fd == 0) {
rc = libcfs_kkuc_group_put(KUC_GRP_HSM, lh);
} else {
struct file *fp = fget(fd);
rc = libcfs_kkuc_msg_put(fp, lh);
fput(fp);
}
OBD_FREE(lh, len);
if (rc < 0)
return rc;
return count;
}
