void lustre_swab_lu_seq_range(struct lu_seq_range *range)
{
__swab64s (&range->lsr_start);
__swab64s (&range->lsr_end);
__swab32s (&range->lsr_index);
__swab32s (&range->lsr_flags);
}
/**
* Swab, if needed, LMA structure which is stored on-disk in little-endian order.
*
* \param lma - is a pointer to the LMA structure to be swabbed.
*/
void lustre_lma_swab(struct lustre_mdt_attrs *lma)
{
#ifdef __BIG_ENDIAN
__swab32s(&lma->lma_compat);
__swab32s(&lma->lma_incompat);
lustre_swab_lu_fid(&lma->lma_self_fid);
#endif
}
/**
* Swab, if needed, LMA structure which is stored on-disk in little-endian order.
*
* \param lma - is a pointer to the LMA structure to be swabbed.
*/
void lustre_lma_swab(struct lustre_mdt_attrs *lma)
{
/* Use LUSTRE_MSG_MAGIC to detect local endianess. */
if (LUSTRE_MSG_MAGIC != cpu_to_le32(LUSTRE_MSG_MAGIC)) {
__swab32s(&lma->lma_compat);
__swab32s(&lma->lma_incompat);
lustre_swab_lu_fid(&lma->lma_self_fid);
}
};
/**
* Swab, if needed, HSM structure which is stored on-disk in little-endian
* order.
*
* \param attrs - is a pointer to the HSM structure to be swabbed.
*/
void lustre_hsm_swab(struct hsm_attrs *attrs)
{
#ifdef __BIG_ENDIAN
__swab32s(&attrs->hsm_compat);
__swab32s(&attrs->hsm_flags);
__swab64s(&attrs->hsm_arch_id);
__swab64s(&attrs->hsm_arch_ver);
#endif
}
/**
* Swab, if needed, HSM structure which is stored on-disk in little-endian
* order.
*
* \param attrs - is a pointer to the HSM structure to be swabbed.
*/
void lustre_hsm_swab(struct hsm_attrs *attrs)
{
/* Use LUSTRE_MSG_MAGIC to detect local endianess. */
if (LUSTRE_MSG_MAGIC != cpu_to_le32(LUSTRE_MSG_MAGIC)) {
__swab32s(&attrs->hsm_compat);
__swab32s(&attrs->hsm_flags);
__swab64s(&attrs->hsm_arch_id);
__swab64s(&attrs->hsm_arch_ver);
}
};
/**
* Swab, if needed, SOM structure which is stored on-disk in little-endian
* order.
*
* \param attrs - is a pointer to the SOM structure to be swabbed.
*/
void lustre_som_swab(struct som_attrs *attrs)
{
/* Use LUSTRE_MSG_MAGIC to detect local endianess. */
if (LUSTRE_MSG_MAGIC != cpu_to_le32(LUSTRE_MSG_MAGIC)) {
__swab32s(&attrs->som_compat);
__swab32s(&attrs->som_incompat);
__swab64s(&attrs->som_ioepoch);
__swab64s(&attrs->som_size);
__swab64s(&attrs->som_blocks);
__swab64s(&attrs->som_mountid);
}
};
void lustre_swab_llogd_body (struct llogd_body *d)
{
print_llogd_body(d);
lustre_swab_llog_id(&d->lgd_logid);
__swab32s (&d->lgd_ctxt_idx);
__swab32s (&d->lgd_llh_flags);
__swab32s (&d->lgd_index);
__swab32s (&d->lgd_saved_index);
__swab32s (&d->lgd_len);
__swab64s (&d->lgd_cur_offset);
print_llogd_body(d);
}
static void wl12xx_spi_init(struct device *child)
{
struct wl12xx_spi_glue *glue = dev_get_drvdata(child->parent);
struct spi_transfer t;
struct spi_message m;
u8 *cmd = kzalloc(WSPI_INIT_CMD_LEN, GFP_KERNEL);
if (!cmd) {
dev_err(child->parent,
"could not allocate cmd for spi init\n");
return;
}
memset(&t, 0, sizeof(t));
spi_message_init(&m);
/*
* Set WSPI_INIT_COMMAND
* the data is being send from the MSB to LSB
*/
cmd[0] = 0xff;
cmd[1] = 0xff;
cmd[2] = WSPI_INIT_CMD_START | WSPI_INIT_CMD_TX;
cmd[3] = 0;
cmd[4] = 0;
cmd[5] = HW_ACCESS_WSPI_INIT_CMD_MASK << 3;
cmd[5] |= HW_ACCESS_WSPI_FIXED_BUSY_LEN & WSPI_INIT_CMD_FIXEDBUSY_LEN;
cmd[6] = WSPI_INIT_CMD_IOD | WSPI_INIT_CMD_IP | WSPI_INIT_CMD_CS
| WSPI_INIT_CMD_WSPI | WSPI_INIT_CMD_WS;
if (HW_ACCESS_WSPI_FIXED_BUSY_LEN == 0)
cmd[6] |= WSPI_INIT_CMD_DIS_FIXEDBUSY;
else
cmd[6] |= WSPI_INIT_CMD_EN_FIXEDBUSY;
cmd[7] = crc7_be(0, cmd+2, WSPI_INIT_CMD_CRC_LEN) | WSPI_INIT_CMD_END;
/*
* The above is the logical order; it must actually be stored
* in the buffer byte-swapped.
*/
__swab32s((u32 *)cmd);
__swab32s((u32 *)cmd+1);
t.tx_buf = cmd;
t.len = WSPI_INIT_CMD_LEN;
spi_message_add_tail(&t, &m);
spi_sync(to_spi_device(glue->dev), &m);
kfree(cmd);
}
static void wl1251_spi_wake(struct wl1251 *wl)
{
struct spi_transfer t;
struct spi_message m;
u8 *cmd = kzalloc(WSPI_INIT_CMD_LEN, GFP_KERNEL);
if (!cmd) {
wl1251_error("could not allocate cmd for spi init");
return;
}
memset(&t, 0, sizeof(t));
spi_message_init(&m);
/* Set WSPI_INIT_COMMAND
* the data is being send from the MSB to LSB
*/
cmd[0] = 0xff;
cmd[1] = 0xff;
cmd[2] = WSPI_INIT_CMD_START | WSPI_INIT_CMD_TX;
cmd[3] = 0;
cmd[4] = 0;
cmd[5] = HW_ACCESS_WSPI_INIT_CMD_MASK << 3;
cmd[5] |= HW_ACCESS_WSPI_FIXED_BUSY_LEN & WSPI_INIT_CMD_FIXEDBUSY_LEN;
cmd[6] = WSPI_INIT_CMD_IOD | WSPI_INIT_CMD_IP | WSPI_INIT_CMD_CS
| WSPI_INIT_CMD_WSPI | WSPI_INIT_CMD_WS;
if (HW_ACCESS_WSPI_FIXED_BUSY_LEN == 0)
cmd[6] |= WSPI_INIT_CMD_DIS_FIXEDBUSY;
else
cmd[6] |= WSPI_INIT_CMD_EN_FIXEDBUSY;
cmd[7] = crc7_be(0, cmd+2, WSPI_INIT_CMD_CRC_LEN) | WSPI_INIT_CMD_END;
/*
* The above is the logical order; it must actually be stored
* in the buffer byte-swapped.
*/
__swab32s((u32 *)cmd);
__swab32s((u32 *)cmd+1);
t.tx_buf = cmd;
t.len = WSPI_INIT_CMD_LEN;
spi_message_add_tail(&t, &m);
spi_sync(wl_to_spi(wl), &m);
wl1251_dump(DEBUG_SPI, "spi init -> ", cmd, WSPI_INIT_CMD_LEN);
kfree(cmd);
}
static void
ping_client_done_rpc (sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
{
sfw_test_instance_t *tsi = tsu->tsu_instance;
sfw_session_t *sn = tsi->tsi_batch->bat_session;
srpc_ping_reqst_t *reqst = &rpc->crpc_reqstmsg.msg_body.ping_reqst;
srpc_ping_reply_t *reply = &rpc->crpc_replymsg.msg_body.ping_reply;
struct timeval tv;
LASSERT (sn != NULL);
if (rpc->crpc_status != 0) {
if (!tsi->tsi_stopping) /* rpc could have been aborted */
atomic_inc(&sn->sn_ping_errors);
CERROR ("Unable to ping %s (%d): %d\n",
libcfs_id2str(rpc->crpc_dest),
reqst->pnr_seq, rpc->crpc_status);
return;
}
if (rpc->crpc_replymsg.msg_magic != SRPC_MSG_MAGIC) {
__swab32s(&reply->pnr_seq);
__swab32s(&reply->pnr_magic);
__swab32s(&reply->pnr_status);
}
if (reply->pnr_magic != LST_PING_TEST_MAGIC) {
rpc->crpc_status = -EBADMSG;
atomic_inc(&sn->sn_ping_errors);
CERROR ("Bad magic %u from %s, %u expected.\n",
reply->pnr_magic, libcfs_id2str(rpc->crpc_dest),
LST_PING_TEST_MAGIC);
return;
}
if (reply->pnr_seq != reqst->pnr_seq) {
rpc->crpc_status = -EBADMSG;
atomic_inc(&sn->sn_ping_errors);
CERROR ("Bad seq %u from %s, %u expected.\n",
reply->pnr_seq, libcfs_id2str(rpc->crpc_dest),
reqst->pnr_seq);
return;
}
cfs_fs_timeval(&tv);
CDEBUG (D_NET, "%d reply in %u usec\n", reply->pnr_seq,
(unsigned)((tv.tv_sec - (unsigned)reqst->pnr_time_sec) * 1000000
+ (tv.tv_usec - reqst->pnr_time_usec)));
return;
}
static void
ping_client_done_rpc(struct sfw_test_unit *tsu, struct srpc_client_rpc *rpc)
{
struct sfw_test_instance *tsi = tsu->tsu_instance;
struct sfw_session *sn = tsi->tsi_batch->bat_session;
struct srpc_ping_reqst *reqst = &rpc->crpc_reqstmsg.msg_body.ping_reqst;
struct srpc_ping_reply *reply = &rpc->crpc_replymsg.msg_body.ping_reply;
struct timespec64 ts;
LASSERT(sn);
if (rpc->crpc_status) {
if (!tsi->tsi_stopping) /* rpc could have been aborted */
atomic_inc(&sn->sn_ping_errors);
CERROR("Unable to ping %s (%d): %d\n",
libcfs_id2str(rpc->crpc_dest),
reqst->pnr_seq, rpc->crpc_status);
return;
}
if (rpc->crpc_replymsg.msg_magic != SRPC_MSG_MAGIC) {
__swab32s(&reply->pnr_seq);
__swab32s(&reply->pnr_magic);
__swab32s(&reply->pnr_status);
}
if (reply->pnr_magic != LST_PING_TEST_MAGIC) {
rpc->crpc_status = -EBADMSG;
atomic_inc(&sn->sn_ping_errors);
CERROR("Bad magic %u from %s, %u expected.\n",
reply->pnr_magic, libcfs_id2str(rpc->crpc_dest),
LST_PING_TEST_MAGIC);
return;
}
if (reply->pnr_seq != reqst->pnr_seq) {
rpc->crpc_status = -EBADMSG;
atomic_inc(&sn->sn_ping_errors);
CERROR("Bad seq %u from %s, %u expected.\n",
reply->pnr_seq, libcfs_id2str(rpc->crpc_dest),
reqst->pnr_seq);
return;
}
ktime_get_real_ts64(&ts);
CDEBUG(D_NET, "%d reply in %u usec\n", reply->pnr_seq,
(unsigned int)((ts.tv_sec - reqst->pnr_time_sec) * 1000000 +
(ts.tv_nsec / NSEC_PER_USEC - reqst->pnr_time_usec)));
}
void lustre_swab_llogd_conn_body (struct llogd_conn_body *d)
{
__swab64s (&d->lgdc_gen.mnt_cnt);
__swab64s (&d->lgdc_gen.conn_cnt);
lustre_swab_llog_id(&d->lgdc_logid);
__swab32s (&d->lgdc_ctxt_idx);
}
int bulk_sec_desc_unpack(struct lustre_msg *msg, int offset, int swabbed)
{
struct ptlrpc_bulk_sec_desc *bsd;
int size = msg->lm_buflens[offset];
bsd = lustre_msg_buf(msg, offset, sizeof(*bsd));
if (!bsd) {
CERROR("Invalid bulk sec desc: size %d\n", size);
return -EINVAL;
}
if (swabbed)
__swab32s(&bsd->bsd_nob);
if (unlikely(bsd->bsd_version != 0)) {
CERROR("Unexpected version %u\n", bsd->bsd_version);
return -EPROTO;
}
if (unlikely(bsd->bsd_type >= SPTLRPC_BULK_MAX)) {
CERROR("Invalid type %u\n", bsd->bsd_type);
return -EPROTO;
}
/* FIXME more sanity check here */
if (unlikely(bsd->bsd_svc != SPTLRPC_BULK_SVC_NULL &&
bsd->bsd_svc != SPTLRPC_BULK_SVC_INTG &&
bsd->bsd_svc != SPTLRPC_BULK_SVC_PRIV)) {
CERROR("Invalid svc %u\n", bsd->bsd_svc);
return -EPROTO;
}
return 0;
}
void lustre_swab_cfg_marker(struct cfg_marker *marker, int swab, int size)
{
struct cfg_marker32 *cm32 = (struct cfg_marker32*)marker;
ENTRY;
if (swab) {
__swab32s(&marker->cm_step);
__swab32s(&marker->cm_flags);
__swab32s(&marker->cm_vers);
}
if (size == sizeof(*cm32)) {
__u32 createtime, canceltime;
/* There was a problem with the original declaration of
* cfg_marker on 32-bit systems because it used time_t as
* a wire protocol structure, and didn't verify this in
* wirecheck. We now have to convert the offsets of the
* later fields in order to work on 32- and 64-bit systems.
*
* Fortunately, the cm_comment field has no functional use
* so can be sacrificed when converting the timestamp size.
*
* Overwrite fields from the end first, so they are not
* clobbered, and use memmove() instead of memcpy() because
* the source and target buffers overlap. bug 16771 */
createtime = cm32->cm_createtime;
canceltime = cm32->cm_canceltime;
memmove(marker->cm_comment, cm32->cm_comment, MTI_NAMELEN32);
marker->cm_comment[MTI_NAMELEN32 - 1] = '\0';
memmove(marker->cm_tgtname, cm32->cm_tgtname,
sizeof(marker->cm_tgtname));
if (swab) {
__swab32s(&createtime);
__swab32s(&canceltime);
}
marker->cm_createtime = createtime;
marker->cm_canceltime = canceltime;
CDEBUG(D_CONFIG, "Find old cfg_marker(Srv32b,Clt64b) "
"for target %s, converting\n",
marker->cm_tgtname);
} else if (swab) {
__swab64s(&marker->cm_createtime);
__swab64s(&marker->cm_canceltime);
}
EXIT;
return;
}
static int out_index_insert(struct tgt_session_info *tsi)
{
struct tgt_thread_info *tti = tgt_th_info(tsi->tsi_env);
struct object_update *update = tti->tti_u.update.tti_update;
struct dt_object *obj = tti->tti_u.update.tti_dt_object;
struct dt_insert_rec *rec = &tti->tti_rec;
struct lu_fid *fid;
char *name;
__u32 *ptype;
int rc = 0;
size_t size;
ENTRY;
name = object_update_param_get(update, 0, NULL);
if (IS_ERR(name)) {
CERROR("%s: empty name for index insert: rc = %ld\n",
tgt_name(tsi->tsi_tgt), PTR_ERR(name));
RETURN(PTR_ERR(name));
}
fid = object_update_param_get(update, 1, &size);
if (IS_ERR(fid) || size != sizeof(*fid)) {
CERROR("%s: invalid fid: rc = %ld\n",
tgt_name(tsi->tsi_tgt), PTR_ERR(fid));
RETURN(PTR_ERR(fid));
}
if (ptlrpc_req_need_swab(tsi->tsi_pill->rc_req))
lustre_swab_lu_fid(fid);
if (!fid_is_sane(fid)) {
CERROR("%s: invalid FID "DFID": rc = %d\n",
tgt_name(tsi->tsi_tgt), PFID(fid), -EPROTO);
RETURN(-EPROTO);
}
ptype = object_update_param_get(update, 2, &size);
if (IS_ERR(ptype) || size != sizeof(*ptype)) {
CERROR("%s: invalid type for index insert: rc = %ld\n",
tgt_name(tsi->tsi_tgt), PTR_ERR(ptype));
RETURN(PTR_ERR(ptype));
}
if (ptlrpc_req_need_swab(tsi->tsi_pill->rc_req))
__swab32s(ptype);
rec->rec_fid = fid;
rec->rec_type = *ptype;
rc = out_tx_index_insert(tsi->tsi_env, obj, (const struct dt_rec *)rec,
(const struct dt_key *)name, &tti->tti_tea,
tti->tti_tea.ta_handle,
tti->tti_u.update.tti_update_reply,
tti->tti_u.update.tti_update_reply_index);
RETURN(rc);
}
static int
ping_server_handle(struct srpc_server_rpc *rpc)
{
struct srpc_service *sv = rpc->srpc_scd->scd_svc;
srpc_msg_t *reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
srpc_msg_t *replymsg = &rpc->srpc_replymsg;
srpc_ping_reqst_t *req = &reqstmsg->msg_body.ping_reqst;
srpc_ping_reply_t *rep = &rpc->srpc_replymsg.msg_body.ping_reply;
LASSERT (sv->sv_id == SRPC_SERVICE_PING);
if (reqstmsg->msg_magic != SRPC_MSG_MAGIC) {
LASSERT (reqstmsg->msg_magic == __swab32(SRPC_MSG_MAGIC));
__swab32s(&req->pnr_seq);
__swab32s(&req->pnr_magic);
__swab64s(&req->pnr_time_sec);
__swab64s(&req->pnr_time_usec);
}
LASSERT (reqstmsg->msg_type == srpc_service2request(sv->sv_id));
if (req->pnr_magic != LST_PING_TEST_MAGIC) {
CERROR ("Unexpected magic %08x from %s\n",
req->pnr_magic, libcfs_id2str(rpc->srpc_peer));
return -EINVAL;
}
rep->pnr_seq = req->pnr_seq;
rep->pnr_magic = LST_PING_TEST_MAGIC;
if ((reqstmsg->msg_ses_feats & ~LST_FEATS_MASK) != 0) {
replymsg->msg_ses_feats = LST_FEATS_MASK;
rep->pnr_status = EPROTO;
return 0;
}
replymsg->msg_ses_feats = reqstmsg->msg_ses_feats;
CDEBUG(D_NET, "Get ping %d from %s\n",
req->pnr_seq, libcfs_id2str(rpc->srpc_peer));
return 0;
}
/**
* Byte-swap the fields of struct lov_user_md.
*
* XXX Rather than duplicating swabbing code here, we should eventually
* refactor the needed functions in lustre/ptlrpc/pack_generic.c
* into a library that can be shared between kernel and user code.
*/
static void
llapi_layout_swab_lov_user_md(struct lov_user_md *lum, int object_count)
{
int i;
struct lov_user_md_v3 *lumv3 = (struct lov_user_md_v3 *)lum;
struct lov_user_ost_data *lod;
__swab32s(&lum->lmm_magic);
__swab32s(&lum->lmm_pattern);
__swab32s(&lum->lmm_stripe_size);
__swab16s(&lum->lmm_stripe_count);
__swab16s(&lum->lmm_stripe_offset);
if (lum->lmm_magic != LOV_MAGIC_V1)
lod = lumv3->lmm_objects;
else
lod = lum->lmm_objects;
for (i = 0; i < object_count; i++)
__swab32s(&lod[i].l_ost_idx);
}
void lustre_swab_lustre_cfg(struct lustre_cfg *lcfg)
{
int i;
ENTRY;
__swab32s(&lcfg->lcfg_version);
if (lcfg->lcfg_version != LUSTRE_CFG_VERSION) {
CERROR("not swabbing lustre_cfg version %#x (expecting %#x)\n",
lcfg->lcfg_version, LUSTRE_CFG_VERSION);
EXIT;
return;
}
__swab32s(&lcfg->lcfg_command);
__swab32s(&lcfg->lcfg_num);
__swab32s(&lcfg->lcfg_flags);
__swab64s(&lcfg->lcfg_nid);
__swab32s(&lcfg->lcfg_bufcount);
for (i = 0; i < lcfg->lcfg_bufcount && i < LUSTRE_CFG_MAX_BUFCOUNT; i++)
__swab32s(&lcfg->lcfg_buflens[i]);
print_lustre_cfg(lcfg);
EXIT;
return;
}
/**
* Swab, if needed, LOA (for OST-object only) structure with LMA EA and PFID EA
* combined together are stored on-disk in little-endian order.
*
* \param[in] loa - the pointer to the LOA structure to be swabbed.
* \param[in] to_cpu - to indicate swab for CPU order or not.
*/
void lustre_loa_swab(struct lustre_ost_attrs *loa, bool to_cpu)
{
struct lustre_mdt_attrs *lma = &loa->loa_lma;
#ifdef __BIG_ENDIAN
__u32 compat = lma->lma_compat;
#endif
lustre_lma_swab(lma);
#ifdef __BIG_ENDIAN
if (to_cpu)
compat = lma->lma_compat;
if (compat & LMAC_STRIPE_INFO) {
lustre_swab_lu_fid(&loa->loa_parent_fid);
__swab32s(&loa->loa_stripe_size);
}
if (compat & LMAC_COMP_INFO) {
__swab32s(&loa->loa_comp_id);
__swab64s(&loa->loa_comp_start);
__swab64s(&loa->loa_comp_end);
}
#endif
}
static int out_xattr_set(struct tgt_session_info *tsi)
{
struct tgt_thread_info *tti = tgt_th_info(tsi->tsi_env);
struct object_update *update = tti->tti_u.update.tti_update;
struct dt_object *obj = tti->tti_u.update.tti_dt_object;
struct lu_buf *lbuf = &tti->tti_buf;
char *name;
char *buf;
char *tmp;
int buf_len = 0;
int flag;
int rc;
ENTRY;
name = object_update_param_get(update, 0, NULL);
if (name == NULL) {
CERROR("%s: empty name for xattr set: rc = %d\n",
tgt_name(tsi->tsi_tgt), -EPROTO);
RETURN(err_serious(-EPROTO));
}
buf = object_update_param_get(update, 1, &buf_len);
if (buf == NULL || buf_len == 0) {
CERROR("%s: empty buf for xattr set: rc = %d\n",
tgt_name(tsi->tsi_tgt), -EPROTO);
RETURN(err_serious(-EPROTO));
}
lbuf->lb_buf = buf;
lbuf->lb_len = buf_len;
tmp = (char *)object_update_param_get(update, 2, NULL);
if (tmp == NULL) {
CERROR("%s: empty flag for xattr set: rc = %d\n",
tgt_name(tsi->tsi_tgt), -EPROTO);
RETURN(err_serious(-EPROTO));
}
if (ptlrpc_req_need_swab(tsi->tsi_pill->rc_req))
__swab32s((__u32 *)tmp);
flag = *(int *)tmp;
rc = out_tx_xattr_set(tsi->tsi_env, obj, lbuf, name, flag,
&tti->tti_tea,
tti->tti_u.update.tti_update_reply,
tti->tti_u.update.tti_update_reply_index);
RETURN(rc);
}
static int out_xattr_set(struct tgt_session_info *tsi)
{
struct tgt_thread_info *tti = tgt_th_info(tsi->tsi_env);
struct object_update *update = tti->tti_u.update.tti_update;
struct dt_object *obj = tti->tti_u.update.tti_dt_object;
struct lu_buf *lbuf = &tti->tti_buf;
char *name;
char *buf;
__u32 *tmp;
size_t buf_len = 0;
int flag;
size_t size = 0;
int rc;
ENTRY;
name = object_update_param_get(update, 0, NULL);
if (IS_ERR(name)) {
CERROR("%s: empty name for xattr set: rc = %ld\n",
tgt_name(tsi->tsi_tgt), PTR_ERR(name));
RETURN(PTR_ERR(name));
}
/* If buffer == NULL (-ENODATA), then it might mean delete xattr */
buf = object_update_param_get(update, 1, &buf_len);
if (IS_ERR(buf) && PTR_ERR(buf) != -ENODATA)
RETURN(PTR_ERR(buf));
lbuf->lb_buf = buf;
lbuf->lb_len = buf_len;
tmp = object_update_param_get(update, 2, &size);
if (IS_ERR(tmp) || size != sizeof(*tmp)) {
CERROR("%s: emptry or wrong size %zu flag: rc = %ld\n",
tgt_name(tsi->tsi_tgt), size, PTR_ERR(tmp));
RETURN(PTR_ERR(tmp));
}
if (ptlrpc_req_need_swab(tsi->tsi_pill->rc_req))
__swab32s(tmp);
flag = *tmp;
rc = out_tx_xattr_set(tsi->tsi_env, obj, lbuf, name, flag,
&tti->tti_tea, tti->tti_tea.ta_handle,
tti->tti_u.update.tti_update_reply,
tti->tti_u.update.tti_update_reply_index);
RETURN(rc);
}
void lustre_swab_llog_id(struct llog_logid *log_id)
{
__swab64s(&log_id->lgl_oi.oi.oi_id);
__swab64s(&log_id->lgl_oi.oi.oi_seq);
__swab32s(&log_id->lgl_ogen);
}
void lustre_swab_lu_fid(struct lu_fid *fid)
{
__swab64s (&fid->f_seq);
__swab32s (&fid->f_oid);
__swab32s (&fid->f_ver);
}
void lustre_swab_llog_rec(struct llog_rec_hdr *rec)
{
struct llog_rec_tail *tail = NULL;
__swab32s(&rec->lrh_len);
__swab32s(&rec->lrh_index);
__swab32s(&rec->lrh_type);
__swab32s(&rec->lrh_id);
switch (rec->lrh_type) {
case OST_SZ_REC:
{
struct llog_size_change_rec *lsc =
(struct llog_size_change_rec *)rec;
lustre_swab_ll_fid(&lsc->lsc_fid);
__swab32s(&lsc->lsc_ioepoch);
tail = &lsc->lsc_tail;
break;
}
case MDS_UNLINK_REC:
{
struct llog_unlink_rec *lur = (struct llog_unlink_rec *)rec;
__swab64s(&lur->lur_oid);
__swab32s(&lur->lur_oseq);
__swab32s(&lur->lur_count);
tail = &lur->lur_tail;
break;
}
case MDS_UNLINK64_REC:
{
struct llog_unlink64_rec *lur =
(struct llog_unlink64_rec *)rec;
lustre_swab_lu_fid(&lur->lur_fid);
__swab32s(&lur->lur_count);
tail = &lur->lur_tail;
break;
}
case CHANGELOG_REC:
{
struct llog_changelog_rec *cr = (struct llog_changelog_rec*)rec;
__swab16s(&cr->cr.cr_namelen);
__swab16s(&cr->cr.cr_flags);
__swab32s(&cr->cr.cr_type);
__swab64s(&cr->cr.cr_index);
__swab64s(&cr->cr.cr_prev);
__swab64s(&cr->cr.cr_time);
lustre_swab_lu_fid(&cr->cr.cr_tfid);
lustre_swab_lu_fid(&cr->cr.cr_pfid);
if (CHANGELOG_REC_EXTENDED(&cr->cr)) {
struct llog_changelog_ext_rec *ext =
(struct llog_changelog_ext_rec *)rec;
lustre_swab_lu_fid(&ext->cr.cr_sfid);
lustre_swab_lu_fid(&ext->cr.cr_spfid);
tail = &ext->cr_tail;
} else {
tail = &cr->cr_tail;
}
break;
}
case CHANGELOG_USER_REC:
{
struct llog_changelog_user_rec *cur =
(struct llog_changelog_user_rec*)rec;
__swab32s(&cur->cur_id);
__swab64s(&cur->cur_endrec);
tail = &cur->cur_tail;
break;
}
case HSM_AGENT_REC: {
struct llog_agent_req_rec *arr =
(struct llog_agent_req_rec *)rec;
__swab32s(&arr->arr_hai.hai_len);
__swab32s(&arr->arr_hai.hai_action);
lustre_swab_lu_fid(&arr->arr_hai.hai_fid);
lustre_swab_lu_fid(&arr->arr_hai.hai_dfid);
__swab64s(&arr->arr_hai.hai_cookie);
__swab64s(&arr->arr_hai.hai_extent.offset);
__swab64s(&arr->arr_hai.hai_extent.length);
__swab64s(&arr->arr_hai.hai_gid);
/* no swabing for opaque data */
/* hai_data[0]; */
break;
}
case MDS_SETATTR64_REC:
{
struct llog_setattr64_rec *lsr =
(struct llog_setattr64_rec *)rec;
lustre_swab_ost_id(&lsr->lsr_oi);
__swab32s(&lsr->lsr_uid);
__swab32s(&lsr->lsr_uid_h);
__swab32s(&lsr->lsr_gid);
__swab32s(&lsr->lsr_gid_h);
tail = &lsr->lsr_tail;
break;
}
case OBD_CFG_REC:
/* these are swabbed as they are consumed */
break;
case LLOG_HDR_MAGIC:
{
struct llog_log_hdr *llh = (struct llog_log_hdr *)rec;
__swab64s(&llh->llh_timestamp);
__swab32s(&llh->llh_count);
__swab32s(&llh->llh_bitmap_offset);
__swab32s(&llh->llh_flags);
__swab32s(&llh->llh_size);
__swab32s(&llh->llh_cat_idx);
tail = &llh->llh_tail;
break;
}
case LLOG_LOGID_MAGIC:
{
struct llog_logid_rec *lid = (struct llog_logid_rec *)rec;
lustre_swab_llog_id(&lid->lid_id);
tail = &lid->lid_tail;
break;
}
case LLOG_GEN_REC:
{
struct llog_gen_rec *lgr = (struct llog_gen_rec *)rec;
__swab64s(&lgr->lgr_gen.mnt_cnt);
__swab64s(&lgr->lgr_gen.conn_cnt);
tail = &lgr->lgr_tail;
break;
}
case LLOG_PAD_MAGIC:
break;
default:
CERROR("Unknown llog rec type %#x swabbing rec %p\n",
rec->lrh_type, rec);
}
if (tail) {
__swab32s(&tail->lrt_len);
__swab32s(&tail->lrt_index);
}
}
static void wl12xx_spi_init(struct device *child)
{
struct wl12xx_spi_glue *glue = dev_get_drvdata(child->parent);
struct spi_transfer t;
struct spi_message m;
struct spi_device *spi = to_spi_device(glue->dev);
u8 *cmd = kzalloc(WSPI_INIT_CMD_LEN, GFP_KERNEL);
if (!cmd) {
dev_err(child->parent,
"could not allocate cmd for spi init\n");
return;
}
memset(&t, 0, sizeof(t));
spi_message_init(&m);
/*
* Set WSPI_INIT_COMMAND
* the data is being send from the MSB to LSB
*/
cmd[0] = 0xff;
cmd[1] = 0xff;
cmd[2] = WSPI_INIT_CMD_START | WSPI_INIT_CMD_TX;
cmd[3] = 0;
cmd[4] = 0;
cmd[5] = HW_ACCESS_WSPI_INIT_CMD_MASK << 3;
cmd[5] |= HW_ACCESS_WSPI_FIXED_BUSY_LEN & WSPI_INIT_CMD_FIXEDBUSY_LEN;
cmd[6] = WSPI_INIT_CMD_IOD | WSPI_INIT_CMD_IP | WSPI_INIT_CMD_CS
| WSPI_INIT_CMD_WSPI | WSPI_INIT_CMD_WS;
if (HW_ACCESS_WSPI_FIXED_BUSY_LEN == 0)
cmd[6] |= WSPI_INIT_CMD_DIS_FIXEDBUSY;
else
cmd[6] |= WSPI_INIT_CMD_EN_FIXEDBUSY;
cmd[7] = crc7_be(0, cmd+2, WSPI_INIT_CMD_CRC_LEN) | WSPI_INIT_CMD_END;
/*
* The above is the logical order; it must actually be stored
* in the buffer byte-swapped.
*/
__swab32s((u32 *)cmd);
__swab32s((u32 *)cmd+1);
t.tx_buf = cmd;
t.len = WSPI_INIT_CMD_LEN;
spi_message_add_tail(&t, &m);
spi_sync(to_spi_device(glue->dev), &m);
/* Send extra clocks with inverted CS (high). this is required
* by the wilink family in order to successfully enter WSPI mode.
*/
spi->mode ^= SPI_CS_HIGH;
memset(&m, 0, sizeof(m));
spi_message_init(&m);
cmd[0] = 0xff;
cmd[1] = 0xff;
cmd[2] = 0xff;
cmd[3] = 0xff;
__swab32s((u32 *)cmd);
t.tx_buf = cmd;
t.len = 4;
spi_message_add_tail(&t, &m);
spi_sync(to_spi_device(glue->dev), &m);
/* Restore chip select configration to normal */
spi->mode ^= SPI_CS_HIGH;
kfree(cmd);
}
/* Switch on rx_state.
* Return 0 on success, 1 if whole packet is read, else return <0
* Always set cont_flag: 1 if we're ready to continue reading, else 0
* NB: If whole packet is read, cont_flag will be set to zero to take
* care of fairess
*/
int
usocklnd_read_msg(usock_conn_t *conn, int *cont_flag)
{
int rc = 0;
__u64 cookie;
*cont_flag = 0;
/* smth. new emerged in RX part - let's process it */
switch (conn->uc_rx_state) {
case UC_RX_KSM_HEADER:
if (conn->uc_flip) {
__swab32s(&conn->uc_rx_msg.ksm_type);
__swab32s(&conn->uc_rx_msg.ksm_csum);
__swab64s(&conn->uc_rx_msg.ksm_zc_cookies[0]);
__swab64s(&conn->uc_rx_msg.ksm_zc_cookies[1]);
}
/* we never send packets for wich zc-acking is required */
if (conn->uc_rx_msg.ksm_type != KSOCK_MSG_LNET ||
conn->uc_rx_msg.ksm_zc_cookies[1] != 0) {
conn->uc_errored = 1;
return -EPROTO;
}
/* zc_req will be processed later, when
lnet payload will be received */
usocklnd_rx_lnethdr_state_transition(conn);
*cont_flag = 1;
break;
case UC_RX_LNET_HEADER:
if (the_lnet.ln_pid & LNET_PID_USERFLAG) {
/* replace dest_nid,pid (ksocknal sets its own) */
conn->uc_rx_msg.ksm_u.lnetmsg.ksnm_hdr.dest_nid =
cpu_to_le64(conn->uc_peer->up_ni->ni_nid);
conn->uc_rx_msg.ksm_u.lnetmsg.ksnm_hdr.dest_pid =
cpu_to_le32(the_lnet.ln_pid);
} else if (conn->uc_peer->up_peerid.pid & LNET_PID_USERFLAG) {
/* Userspace peer */
lnet_process_id_t *id = &conn->uc_peer->up_peerid;
lnet_hdr_t *lhdr = &conn->uc_rx_msg.ksm_u.lnetmsg.ksnm_hdr;
/* Substitute process ID assigned at connection time */
lhdr->src_pid = cpu_to_le32(id->pid);
lhdr->src_nid = cpu_to_le64(id->nid);
}
conn->uc_rx_state = UC_RX_PARSE;
usocklnd_conn_addref(conn); /* ++ref while parsing */
rc = lnet_parse(conn->uc_peer->up_ni,
&conn->uc_rx_msg.ksm_u.lnetmsg.ksnm_hdr,
conn->uc_peerid.nid, conn, 0);
if (rc < 0) {
/* I just received garbage: give up on this conn */
conn->uc_errored = 1;
usocklnd_conn_decref(conn);
return -EPROTO;
}
/* Race with usocklnd_recv() is possible */
pthread_mutex_lock(&conn->uc_lock);
LASSERT (conn->uc_rx_state == UC_RX_PARSE ||
conn->uc_rx_state == UC_RX_LNET_PAYLOAD);
/* check whether usocklnd_recv() got called */
if (conn->uc_rx_state == UC_RX_LNET_PAYLOAD)
*cont_flag = 1;
pthread_mutex_unlock(&conn->uc_lock);
break;
case UC_RX_PARSE:
LBUG(); /* it's error to be here, because this special
* case is handled by caller */
break;
case UC_RX_PARSE_WAIT:
LBUG(); /* it's error to be here, because the conn
* shouldn't wait for POLLIN event in this
* state */
break;
case UC_RX_LNET_PAYLOAD:
/* payload all received */
lnet_finalize(conn->uc_peer->up_ni, conn->uc_rx_lnetmsg, 0);
cookie = conn->uc_rx_msg.ksm_zc_cookies[0];
if (cookie != 0)
rc = usocklnd_handle_zc_req(conn->uc_peer, cookie);
if (rc != 0) {
/* change state not to finalize twice */
conn->uc_rx_state = UC_RX_KSM_HEADER;
return -EPROTO;
}
/* Fall through */
case UC_RX_SKIPPING:
if (conn->uc_rx_nob_left != 0) {
usocklnd_rx_skipping_state_transition(conn);
*cont_flag = 1;
} else {
usocklnd_rx_ksmhdr_state_transition(conn);
rc = 1; /* whole packet is read */
}
break;
default:
LBUG(); /* unknown state */
}
return rc;
}
/* Switch on rx_state.
* Return 0 on success, else return <0
* Always set cont_flag: 1 if we're ready to continue reading, else 0
*/
int
usocklnd_read_hello(usock_conn_t *conn, int *cont_flag)
{
int rc = 0;
ksock_hello_msg_t *hello = conn->uc_rx_hello;
*cont_flag = 0;
/* smth. new emerged in hello - let's process it */
switch (conn->uc_rx_state) {
case UC_RX_HELLO_MAGIC:
if (hello->kshm_magic == LNET_PROTO_MAGIC)
conn->uc_flip = 0;
else if (hello->kshm_magic == __swab32(LNET_PROTO_MAGIC))
conn->uc_flip = 1;
else
return -EPROTO;
usocklnd_rx_helloversion_state_transition(conn);
*cont_flag = 1;
break;
case UC_RX_HELLO_VERSION:
if ((!conn->uc_flip &&
(hello->kshm_version != KSOCK_PROTO_V2)) ||
(conn->uc_flip &&
(hello->kshm_version != __swab32(KSOCK_PROTO_V2))))
return -EPROTO;
usocklnd_rx_hellobody_state_transition(conn);
*cont_flag = 1;
break;
case UC_RX_HELLO_BODY:
if (conn->uc_flip) {
ksock_hello_msg_t *hello = conn->uc_rx_hello;
__swab32s(&hello->kshm_src_pid);
__swab64s(&hello->kshm_src_nid);
__swab32s(&hello->kshm_dst_pid);
__swab64s(&hello->kshm_dst_nid);
__swab64s(&hello->kshm_src_incarnation);
__swab64s(&hello->kshm_dst_incarnation);
__swab32s(&hello->kshm_ctype);
__swab32s(&hello->kshm_nips);
}
if (conn->uc_rx_hello->kshm_nips > LNET_MAX_INTERFACES) {
CERROR("Bad nips %d from ip %u.%u.%u.%u port %d\n",
conn->uc_rx_hello->kshm_nips,
HIPQUAD(conn->uc_peer_ip), conn->uc_peer_port);
return -EPROTO;
}
if (conn->uc_rx_hello->kshm_nips) {
usocklnd_rx_helloIPs_state_transition(conn);
*cont_flag = 1;
break;
}
/* fall through */
case UC_RX_HELLO_IPS:
if (conn->uc_activeflag == 1) /* active conn */
rc = usocklnd_activeconn_hellorecv(conn);
else /* passive conn */
rc = usocklnd_passiveconn_hellorecv(conn);
break;
default:
LBUG(); /* unknown state */
}
return rc;
}
int
lnet_accept(socket_t *sock, __u32 magic)
{
lnet_acceptor_connreq_t cr;
__u32 peer_ip;
int peer_port;
int rc;
int flip;
lnet_ni_t *ni;
char *str;
LASSERT(sizeof(cr) <= 16); /* not too big for the stack */
rc = libcfs_sock_getaddr(sock, 1, &peer_ip, &peer_port);
LASSERT(rc == 0); /* we succeeded before */
if (!lnet_accept_magic(magic, LNET_PROTO_ACCEPTOR_MAGIC)) {
if (lnet_accept_magic(magic, LNET_PROTO_MAGIC)) {
/* future version compatibility!
* When LNET unifies protocols over all LNDs, the first
* thing sent will be a version query. I send back
* LNET_PROTO_ACCEPTOR_MAGIC to tell her I'm "old" */
memset(&cr, 0, sizeof(cr));
cr.acr_magic = LNET_PROTO_ACCEPTOR_MAGIC;
cr.acr_version = LNET_PROTO_ACCEPTOR_VERSION;
rc = libcfs_sock_write(sock, &cr, sizeof(cr),
accept_timeout);
if (rc != 0)
CERROR("Error sending magic+version in response to LNET magic from %pI4h: %d\n",
&peer_ip, rc);
return -EPROTO;
}
if (magic == le32_to_cpu(LNET_PROTO_TCP_MAGIC))
str = "'old' socknal/tcpnal";
else if (lnet_accept_magic(magic, LNET_PROTO_RA_MAGIC))
str = "'old' ranal";
else
str = "unrecognised";
LCONSOLE_ERROR_MSG(0x11f, "Refusing connection from %pI4h magic %08x: %s acceptor protocol\n",
&peer_ip, magic, str);
return -EPROTO;
}
flip = (magic != LNET_PROTO_ACCEPTOR_MAGIC);
rc = libcfs_sock_read(sock, &cr.acr_version,
sizeof(cr.acr_version),
accept_timeout);
if (rc != 0) {
CERROR("Error %d reading connection request version from %pI4h\n",
rc, &peer_ip);
return -EIO;
}
if (flip)
__swab32s(&cr.acr_version);
if (cr.acr_version != LNET_PROTO_ACCEPTOR_VERSION) {
/* future version compatibility!
* An acceptor-specific protocol rev will first send a version
* query. I send back my current version to tell her I'm
* "old". */
int peer_version = cr.acr_version;
memset(&cr, 0, sizeof(cr));
cr.acr_magic = LNET_PROTO_ACCEPTOR_MAGIC;
cr.acr_version = LNET_PROTO_ACCEPTOR_VERSION;
rc = libcfs_sock_write(sock, &cr, sizeof(cr),
accept_timeout);
if (rc != 0)
CERROR("Error sending magic+version in response to version %d from %pI4h: %d\n",
peer_version, &peer_ip, rc);
return -EPROTO;
}
rc = libcfs_sock_read(sock, &cr.acr_nid,
sizeof(cr) -
offsetof(lnet_acceptor_connreq_t, acr_nid),
accept_timeout);
if (rc != 0) {
CERROR("Error %d reading connection request from %pI4h\n",
rc, &peer_ip);
return -EIO;
}
if (flip)
__swab64s(&cr.acr_nid);
ni = lnet_net2ni(LNET_NIDNET(cr.acr_nid));
if (ni == NULL || /* no matching net */
ni->ni_nid != cr.acr_nid) { /* right NET, wrong NID! */
if (ni != NULL)
lnet_ni_decref(ni);
LCONSOLE_ERROR_MSG(0x120, "Refusing connection from %pI4h for %s: No matching NI\n",
&peer_ip, libcfs_nid2str(cr.acr_nid));
return -EPERM;
}
if (ni->ni_lnd->lnd_accept == NULL) {
/* This catches a request for the loopback LND */
lnet_ni_decref(ni);
LCONSOLE_ERROR_MSG(0x121, "Refusing connection from %pI4h for %s: NI doesn not accept IP connections\n",
&peer_ip, libcfs_nid2str(cr.acr_nid));
return -EPERM;
}
CDEBUG(D_NET, "Accept %s from %pI4h\n",
libcfs_nid2str(cr.acr_nid), &peer_ip);
rc = ni->ni_lnd->lnd_accept(ni, sock);
lnet_ni_decref(ni);
return rc;
}
void lustre_swab_ll_fid(struct ll_fid *fid)
{
__swab64s (&fid->id);
__swab32s (&fid->generation);
__swab32s (&fid->f_type);
}
void lustre_swab_llog_rec(struct llog_rec_hdr *rec)
{
struct llog_rec_tail *tail = NULL;
__swab32s(&rec->lrh_len);
__swab32s(&rec->lrh_index);
__swab32s(&rec->lrh_type);
__swab32s(&rec->lrh_id);
switch (rec->lrh_type) {
case OST_SZ_REC:
{
struct llog_size_change_rec *lsc =
(struct llog_size_change_rec *)rec;
lustre_swab_ll_fid(&lsc->lsc_fid);
__swab32s(&lsc->lsc_ioepoch);
tail = &lsc->lsc_tail;
break;
}
case MDS_UNLINK_REC:
{
struct llog_unlink_rec *lur = (struct llog_unlink_rec *)rec;
__swab64s(&lur->lur_oid);
__swab32s(&lur->lur_oseq);
__swab32s(&lur->lur_count);
tail = &lur->lur_tail;
break;
}
case MDS_UNLINK64_REC:
{
struct llog_unlink64_rec *lur =
(struct llog_unlink64_rec *)rec;
lustre_swab_lu_fid(&lur->lur_fid);
__swab32s(&lur->lur_count);
tail = &lur->lur_tail;
break;
}
case CHANGELOG_REC:
{
struct llog_changelog_rec *cr =
(struct llog_changelog_rec *)rec;
__swab16s(&cr->cr.cr_namelen);
__swab16s(&cr->cr.cr_flags);
__swab32s(&cr->cr.cr_type);
__swab64s(&cr->cr.cr_index);
__swab64s(&cr->cr.cr_prev);
__swab64s(&cr->cr.cr_time);
lustre_swab_lu_fid(&cr->cr.cr_tfid);
lustre_swab_lu_fid(&cr->cr.cr_pfid);
if (cr->cr.cr_flags & CLF_RENAME) {
struct changelog_ext_rename *rnm =
changelog_rec_rename(&cr->cr);
lustre_swab_lu_fid(&rnm->cr_sfid);
lustre_swab_lu_fid(&rnm->cr_spfid);
}
/* Because the tail follows a variable-length structure we need
* to compute its location at runtime */
tail = (struct llog_rec_tail *)((char *)&cr->cr +
changelog_rec_size(&cr->cr) +
cr->cr.cr_namelen);
break;
}
case CHANGELOG_USER_REC:
{
struct llog_changelog_user_rec *cur =
(struct llog_changelog_user_rec*)rec;
__swab32s(&cur->cur_id);
__swab64s(&cur->cur_endrec);
tail = &cur->cur_tail;
break;
}
case HSM_AGENT_REC: {
struct llog_agent_req_rec *arr =
(struct llog_agent_req_rec *)rec;
__swab32s(&arr->arr_hai.hai_len);
__swab32s(&arr->arr_hai.hai_action);
lustre_swab_lu_fid(&arr->arr_hai.hai_fid);
lustre_swab_lu_fid(&arr->arr_hai.hai_dfid);
__swab64s(&arr->arr_hai.hai_cookie);
__swab64s(&arr->arr_hai.hai_extent.offset);
__swab64s(&arr->arr_hai.hai_extent.length);
__swab64s(&arr->arr_hai.hai_gid);
/* no swabing for opaque data */
/* hai_data[0]; */
break;
}
case MDS_SETATTR64_REC:
{
struct llog_setattr64_rec *lsr =
(struct llog_setattr64_rec *)rec;
lustre_swab_ost_id(&lsr->lsr_oi);
__swab32s(&lsr->lsr_uid);
__swab32s(&lsr->lsr_uid_h);
__swab32s(&lsr->lsr_gid);
__swab32s(&lsr->lsr_gid_h);
__swab64s(&lsr->lsr_valid);
tail = &lsr->lsr_tail;
break;
}
case OBD_CFG_REC:
/* these are swabbed as they are consumed */
break;
case LLOG_HDR_MAGIC:
{
struct llog_log_hdr *llh = (struct llog_log_hdr *)rec;
__swab64s(&llh->llh_timestamp);
__swab32s(&llh->llh_count);
__swab32s(&llh->llh_bitmap_offset);
__swab32s(&llh->llh_flags);
__swab32s(&llh->llh_size);
__swab32s(&llh->llh_cat_idx);
tail = LLOG_HDR_TAIL(llh);
break;
}
case LLOG_LOGID_MAGIC:
{
struct llog_logid_rec *lid = (struct llog_logid_rec *)rec;
lustre_swab_llog_id(&lid->lid_id);
tail = &lid->lid_tail;
break;
}
case LLOG_GEN_REC:
{
struct llog_gen_rec *lgr = (struct llog_gen_rec *)rec;
__swab64s(&lgr->lgr_gen.mnt_cnt);
__swab64s(&lgr->lgr_gen.conn_cnt);
tail = &lgr->lgr_tail;
break;
}
case LLOG_PAD_MAGIC:
break;
case UPDATE_REC:
{
struct llog_update_record *lur =
(struct llog_update_record *)rec;
struct update_records *record = &lur->lur_update_rec;
__swab32s(&record->ur_flags);
__swab64s(&record->ur_batchid);
__swab64s(&record->ur_master_transno);
__swab32s(&record->ur_param_count);
__swab32s(&record->ur_update_count);
lustre_swab_update_ops(&record->ur_ops,
record->ur_update_count);
/* Compute tail location. */
tail = (struct llog_rec_tail *)((char *)record +
update_records_size(record));
break;
}
default:
CERROR("Unknown llog rec type %#x swabbing rec %p\n",
rec->lrh_type, rec);
}
if (tail) {
__swab32s(&tail->lrt_len);
__swab32s(&tail->lrt_index);
}
}
