static
int null_alloc_rs(struct ptlrpc_request *req, int msgsize)
{
struct ptlrpc_reply_state *rs;
int rs_size = sizeof(*rs) + msgsize;
LASSERT(msgsize % 8 == 0);
rs = req->rq_reply_state;
if (rs) {
/* pre-allocated */
LASSERT(rs->rs_size >= rs_size);
} else {
rs = libcfs_kvzalloc(rs_size, GFP_NOFS);
if (!rs)
return -ENOMEM;
rs->rs_size = rs_size;
}
rs->rs_svc_ctx = req->rq_svc_ctx;
atomic_inc(&req->rq_svc_ctx->sc_refcount);
rs->rs_repbuf = (struct lustre_msg *)(rs + 1);
rs->rs_repbuf_len = rs_size - sizeof(*rs);
rs->rs_msg = rs->rs_repbuf;
req->rq_reply_state = rs;
return 0;
}
struct lov_stripe_md *lsm_alloc_plain(__u16 stripe_count, int *size)
{
struct lov_stripe_md *lsm;
struct lov_oinfo *loi;
int i, oinfo_ptrs_size;
LASSERT(stripe_count <= LOV_MAX_STRIPE_COUNT);
oinfo_ptrs_size = sizeof(struct lov_oinfo *) * stripe_count;
*size = sizeof(struct lov_stripe_md) + oinfo_ptrs_size;
lsm = libcfs_kvzalloc(*size, GFP_NOFS);
if (!lsm)
return NULL;
for (i = 0; i < stripe_count; i++) {
loi = kmem_cache_alloc(lov_oinfo_slab, GFP_NOFS | __GFP_ZERO);
if (loi == NULL)
goto err;
lsm->lsm_oinfo[i] = loi;
}
lsm->lsm_stripe_count = stripe_count;
return lsm;
err:
while (--i >= 0)
kmem_cache_free(lov_oinfo_slab, lsm->lsm_oinfo[i]);
kvfree(lsm);
return NULL;
}
static inline void enc_pools_alloc(void)
{
LASSERT(page_pools.epp_max_pools);
page_pools.epp_pools =
libcfs_kvzalloc(page_pools.epp_max_pools *
sizeof(*page_pools.epp_pools),
GFP_NOFS);
}
static
int null_enlarge_reqbuf(struct ptlrpc_sec *sec,
struct ptlrpc_request *req,
int segment, int newsize)
{
struct lustre_msg *newbuf;
struct lustre_msg *oldbuf = req->rq_reqmsg;
int oldsize, newmsg_size, alloc_size;
LASSERT(req->rq_reqbuf);
LASSERT(req->rq_reqbuf == req->rq_reqmsg);
LASSERT(req->rq_reqbuf_len >= req->rq_reqlen);
LASSERT(req->rq_reqlen == lustre_packed_msg_size(oldbuf));
/* compute new message size */
oldsize = req->rq_reqbuf->lm_buflens[segment];
req->rq_reqbuf->lm_buflens[segment] = newsize;
newmsg_size = lustre_packed_msg_size(oldbuf);
req->rq_reqbuf->lm_buflens[segment] = oldsize;
/* request from pool should always have enough buffer */
LASSERT(!req->rq_pool || req->rq_reqbuf_len >= newmsg_size);
if (req->rq_reqbuf_len < newmsg_size) {
alloc_size = size_roundup_power2(newmsg_size);
newbuf = libcfs_kvzalloc(alloc_size, GFP_NOFS);
if (!newbuf)
return -ENOMEM;
/* Must lock this, so that otherwise unprotected change of
* rq_reqmsg is not racing with parallel processing of
* imp_replay_list traversing threads. See LU-3333
* This is a bandaid at best, we really need to deal with this
* in request enlarging code before unpacking that's already
* there
*/
if (req->rq_import)
spin_lock(&req->rq_import->imp_lock);
memcpy(newbuf, req->rq_reqbuf, req->rq_reqlen);
kvfree(req->rq_reqbuf);
req->rq_reqbuf = newbuf;
req->rq_reqmsg = newbuf;
req->rq_reqbuf_len = alloc_size;
if (req->rq_import)
spin_unlock(&req->rq_import->imp_lock);
}
_sptlrpc_enlarge_msg_inplace(req->rq_reqmsg, segment, newsize);
req->rq_reqlen = newmsg_size;
return 0;
}
static
int null_alloc_repbuf(struct ptlrpc_sec *sec,
struct ptlrpc_request *req,
int msgsize)
{
/* add space for early replied */
msgsize += lustre_msg_early_size();
msgsize = size_roundup_power2(msgsize);
req->rq_repbuf = libcfs_kvzalloc(msgsize, GFP_NOFS);
if (!req->rq_repbuf)
return -ENOMEM;
req->rq_repbuf_len = msgsize;
return 0;
}
static
int null_alloc_reqbuf(struct ptlrpc_sec *sec,
struct ptlrpc_request *req,
int msgsize)
{
if (!req->rq_reqbuf) {
int alloc_size = size_roundup_power2(msgsize);
LASSERT(!req->rq_pool);
req->rq_reqbuf = libcfs_kvzalloc(alloc_size, GFP_NOFS);
if (!req->rq_reqbuf)
return -ENOMEM;
req->rq_reqbuf_len = alloc_size;
} else {
LASSERT(req->rq_pool);
LASSERT(req->rq_reqbuf_len >= msgsize);
memset(req->rq_reqbuf, 0, msgsize);
}
req->rq_reqmsg = req->rq_reqbuf;
return 0;
}
/* Pack LOV object metadata for disk storage. It is packed in LE byte
* order and is opaque to the networking layer.
*
* XXX In the future, this will be enhanced to get the EA size from the
* underlying OSC device(s) to get their EA sizes so we can stack
* LOVs properly. For now lov_mds_md_size() just assumes one u64
* per stripe.
*/
int lov_packmd(struct obd_export *exp, struct lov_mds_md **lmmp,
struct lov_stripe_md *lsm)
{
struct obd_device *obd = class_exp2obd(exp);
struct lov_obd *lov = &obd->u.lov;
struct lov_mds_md_v1 *lmmv1;
struct lov_mds_md_v3 *lmmv3;
__u16 stripe_count;
struct lov_ost_data_v1 *lmm_objects;
int lmm_size, lmm_magic;
int i;
int cplen = 0;
if (lsm) {
lmm_magic = lsm->lsm_magic;
} else {
if (lmmp && *lmmp)
lmm_magic = le32_to_cpu((*lmmp)->lmm_magic);
else
/* lsm == NULL and lmmp == NULL */
lmm_magic = LOV_MAGIC;
}
if ((lmm_magic != LOV_MAGIC_V1) &&
(lmm_magic != LOV_MAGIC_V3)) {
CERROR("bad mem LOV MAGIC: 0x%08X != 0x%08X nor 0x%08X\n",
lmm_magic, LOV_MAGIC_V1, LOV_MAGIC_V3);
return -EINVAL;
}
if (lsm) {
/* If we are just sizing the EA, limit the stripe count
* to the actual number of OSTs in this filesystem.
*/
if (!lmmp) {
stripe_count = lov_get_stripecnt(lov, lmm_magic,
lsm->lsm_stripe_count);
lsm->lsm_stripe_count = stripe_count;
} else if (!lsm_is_released(lsm)) {
stripe_count = lsm->lsm_stripe_count;
} else {
stripe_count = 0;
}
} else {
/* No need to allocate more than maximum supported stripes.
* Anyway, this is pretty inaccurate since ld_tgt_count now
* represents max index and we should rely on the actual number
* of OSTs instead
*/
stripe_count = lov_mds_md_max_stripe_count(
lov->lov_ocd.ocd_max_easize, lmm_magic);
if (stripe_count > lov->desc.ld_tgt_count)
stripe_count = lov->desc.ld_tgt_count;
}
/* XXX LOV STACKING call into osc for sizes */
lmm_size = lov_mds_md_size(stripe_count, lmm_magic);
if (!lmmp)
return lmm_size;
if (*lmmp && !lsm) {
stripe_count = le16_to_cpu((*lmmp)->lmm_stripe_count);
lmm_size = lov_mds_md_size(stripe_count, lmm_magic);
kvfree(*lmmp);
*lmmp = NULL;
return 0;
}
if (!*lmmp) {
*lmmp = libcfs_kvzalloc(lmm_size, GFP_NOFS);
if (!*lmmp)
return -ENOMEM;
}
CDEBUG(D_INFO, "lov_packmd: LOV_MAGIC 0x%08X, lmm_size = %d\n",
lmm_magic, lmm_size);
lmmv1 = *lmmp;
lmmv3 = (struct lov_mds_md_v3 *)*lmmp;
if (lmm_magic == LOV_MAGIC_V3)
lmmv3->lmm_magic = cpu_to_le32(LOV_MAGIC_V3);
else
lmmv1->lmm_magic = cpu_to_le32(LOV_MAGIC_V1);
if (!lsm)
return lmm_size;
/* lmmv1 and lmmv3 point to the same struct and have the
* same first fields
*/
lmm_oi_cpu_to_le(&lmmv1->lmm_oi, &lsm->lsm_oi);
lmmv1->lmm_stripe_size = cpu_to_le32(lsm->lsm_stripe_size);
lmmv1->lmm_stripe_count = cpu_to_le16(stripe_count);
lmmv1->lmm_pattern = cpu_to_le32(lsm->lsm_pattern);
lmmv1->lmm_layout_gen = cpu_to_le16(lsm->lsm_layout_gen);
if (lsm->lsm_magic == LOV_MAGIC_V3) {
cplen = strlcpy(lmmv3->lmm_pool_name, lsm->lsm_pool_name,
sizeof(lmmv3->lmm_pool_name));
if (cplen >= sizeof(lmmv3->lmm_pool_name))
return -E2BIG;
lmm_objects = lmmv3->lmm_objects;
} else {
lmm_objects = lmmv1->lmm_objects;
}
for (i = 0; i < stripe_count; i++) {
struct lov_oinfo *loi = lsm->lsm_oinfo[i];
/* XXX LOV STACKING call down to osc_packmd() to do packing */
LASSERTF(ostid_id(&loi->loi_oi) != 0, "lmm_oi "DOSTID
" stripe %u/%u idx %u\n", POSTID(&lmmv1->lmm_oi),
i, stripe_count, loi->loi_ost_idx);
ostid_cpu_to_le(&loi->loi_oi, &lmm_objects[i].l_ost_oi);
lmm_objects[i].l_ost_gen = cpu_to_le32(loi->loi_ost_gen);
lmm_objects[i].l_ost_idx = cpu_to_le32(loi->loi_ost_idx);
}
return lmm_size;
}
static int lov_init_raid0(const struct lu_env *env,
struct lov_device *dev, struct lov_object *lov,
const struct cl_object_conf *conf,
union lov_layout_state *state)
{
int result;
int i;
struct cl_object *stripe;
struct lov_thread_info *lti = lov_env_info(env);
struct cl_object_conf *subconf = <i->lti_stripe_conf;
struct lov_stripe_md *lsm = conf->u.coc_md->lsm;
struct lu_fid *ofid = <i->lti_fid;
struct lov_layout_raid0 *r0 = &state->raid0;
if (lsm->lsm_magic != LOV_MAGIC_V1 && lsm->lsm_magic != LOV_MAGIC_V3) {
dump_lsm(D_ERROR, lsm);
LASSERTF(0, "magic mismatch, expected %d/%d, actual %d.\n",
LOV_MAGIC_V1, LOV_MAGIC_V3, lsm->lsm_magic);
}
LASSERT(!lov->lo_lsm);
lov->lo_lsm = lsm_addref(lsm);
r0->lo_nr = lsm->lsm_stripe_count;
LASSERT(r0->lo_nr <= lov_targets_nr(dev));
r0->lo_sub = libcfs_kvzalloc(r0->lo_nr * sizeof(r0->lo_sub[0]),
GFP_NOFS);
if (r0->lo_sub) {
int psz = 0;
result = 0;
subconf->coc_inode = conf->coc_inode;
spin_lock_init(&r0->lo_sub_lock);
/*
* Create stripe cl_objects.
*/
for (i = 0; i < r0->lo_nr && result == 0; ++i) {
struct cl_device *subdev;
struct lov_oinfo *oinfo = lsm->lsm_oinfo[i];
int ost_idx = oinfo->loi_ost_idx;
if (lov_oinfo_is_dummy(oinfo))
continue;
result = ostid_to_fid(ofid, &oinfo->loi_oi,
oinfo->loi_ost_idx);
if (result != 0)
goto out;
subdev = lovsub2cl_dev(dev->ld_target[ost_idx]);
subconf->u.coc_oinfo = oinfo;
LASSERTF(subdev, "not init ost %d\n", ost_idx);
/* In the function below, .hs_keycmp resolves to
* lu_obj_hop_keycmp()
*/
/* coverity[overrun-buffer-val] */
stripe = lov_sub_find(env, subdev, ofid, subconf);
if (!IS_ERR(stripe)) {
result = lov_init_sub(env, lov, stripe, r0, i);
if (result == -EAGAIN) { /* try again */
--i;
result = 0;
continue;
}
} else {
result = PTR_ERR(stripe);
}
if (result == 0) {
int sz = lov_page_slice_fixup(lov, stripe);
LASSERT(ergo(psz > 0, psz == sz));
psz = sz;
}
}
if (result == 0)
cl_object_header(&lov->lo_cl)->coh_page_bufsize += psz;
} else {
result = -ENOMEM;
}
out:
return result;
}
/* Pack LOV object metadata for disk storage. It is packed in LE byte
* order and is opaque to the networking layer.
*
* XXX In the future, this will be enhanced to get the EA size from the
* underlying OSC device(s) to get their EA sizes so we can stack
* LOVs properly. For now lov_mds_md_size() just assumes one u64
* per stripe.
*/
int lov_obd_packmd(struct lov_obd *lov, struct lov_mds_md **lmmp,
struct lov_stripe_md *lsm)
{
struct lov_mds_md_v1 *lmmv1;
struct lov_mds_md_v3 *lmmv3;
__u16 stripe_count;
struct lov_ost_data_v1 *lmm_objects;
int lmm_size, lmm_magic;
int i;
int cplen = 0;
if (lsm) {
lmm_magic = lsm->lsm_magic;
} else {
if (lmmp && *lmmp)
lmm_magic = le32_to_cpu((*lmmp)->lmm_magic);
else
/* lsm == NULL and lmmp == NULL */
lmm_magic = LOV_MAGIC;
}
if ((lmm_magic != LOV_MAGIC_V1) &&
(lmm_magic != LOV_MAGIC_V3)) {
CERROR("bad mem LOV MAGIC: 0x%08X != 0x%08X nor 0x%08X\n",
lmm_magic, LOV_MAGIC_V1, LOV_MAGIC_V3);
return -EINVAL;
}
if (lsm) {
/* If we are just sizing the EA, limit the stripe count
* to the actual number of OSTs in this filesystem.
*/
if (!lmmp) {
stripe_count = lov_get_stripecnt(lov, lmm_magic,
lsm->lsm_stripe_count);
lsm->lsm_stripe_count = stripe_count;
} else if (!lsm_is_released(lsm)) {
stripe_count = lsm->lsm_stripe_count;
} else {
stripe_count = 0;
}
} else {
/*
* To calculate maximum easize by active targets at present,
* which is exactly the maximum easize to be seen by LOV
*/
stripe_count = lov->desc.ld_active_tgt_count;
}
/* XXX LOV STACKING call into osc for sizes */
lmm_size = lov_mds_md_size(stripe_count, lmm_magic);
if (!lmmp)
return lmm_size;
if (*lmmp && !lsm) {
stripe_count = le16_to_cpu((*lmmp)->lmm_stripe_count);
lmm_size = lov_mds_md_size(stripe_count, lmm_magic);
kvfree(*lmmp);
*lmmp = NULL;
return 0;
}
if (!*lmmp) {
*lmmp = libcfs_kvzalloc(lmm_size, GFP_NOFS);
if (!*lmmp)
return -ENOMEM;
}
CDEBUG(D_INFO, "lov_packmd: LOV_MAGIC 0x%08X, lmm_size = %d\n",
lmm_magic, lmm_size);
lmmv1 = *lmmp;
lmmv3 = (struct lov_mds_md_v3 *)*lmmp;
if (lmm_magic == LOV_MAGIC_V3)
lmmv3->lmm_magic = cpu_to_le32(LOV_MAGIC_V3);
else
lmmv1->lmm_magic = cpu_to_le32(LOV_MAGIC_V1);
if (!lsm)
return lmm_size;
/* lmmv1 and lmmv3 point to the same struct and have the
* same first fields
*/
lmm_oi_cpu_to_le(&lmmv1->lmm_oi, &lsm->lsm_oi);
lmmv1->lmm_stripe_size = cpu_to_le32(lsm->lsm_stripe_size);
lmmv1->lmm_stripe_count = cpu_to_le16(stripe_count);
lmmv1->lmm_pattern = cpu_to_le32(lsm->lsm_pattern);
lmmv1->lmm_layout_gen = cpu_to_le16(lsm->lsm_layout_gen);
if (lsm->lsm_magic == LOV_MAGIC_V3) {
cplen = strlcpy(lmmv3->lmm_pool_name, lsm->lsm_pool_name,
sizeof(lmmv3->lmm_pool_name));
if (cplen >= sizeof(lmmv3->lmm_pool_name))
return -E2BIG;
lmm_objects = lmmv3->lmm_objects;
} else {
lmm_objects = lmmv1->lmm_objects;
}
for (i = 0; i < stripe_count; i++) {
struct lov_oinfo *loi = lsm->lsm_oinfo[i];
/* XXX LOV STACKING call down to osc_packmd() to do packing */
LASSERTF(ostid_id(&loi->loi_oi) != 0, "lmm_oi "DOSTID
" stripe %u/%u idx %u\n", POSTID(&lmmv1->lmm_oi),
i, stripe_count, loi->loi_ost_idx);
ostid_cpu_to_le(&loi->loi_oi, &lmm_objects[i].l_ost_oi);
lmm_objects[i].l_ost_gen = cpu_to_le32(loi->loi_ost_gen);
lmm_objects[i].l_ost_idx = cpu_to_le32(loi->loi_ost_idx);
}
return lmm_size;
}
static int llog_process_thread(void *arg)
{
struct llog_process_info *lpi = arg;
struct llog_handle *loghandle = lpi->lpi_loghandle;
struct llog_log_hdr *llh = loghandle->lgh_hdr;
struct llog_process_cat_data *cd = lpi->lpi_catdata;
char *buf;
u64 cur_offset, tmp_offset;
int chunk_size;
int rc = 0, index = 1, last_index;
int saved_index = 0;
int last_called_index = 0;
if (!llh)
return -EINVAL;
cur_offset = llh->llh_hdr.lrh_len;
chunk_size = llh->llh_hdr.lrh_len;
/* expect chunk_size to be power of two */
LASSERT(is_power_of_2(chunk_size));
buf = libcfs_kvzalloc(chunk_size, GFP_NOFS);
if (!buf) {
lpi->lpi_rc = -ENOMEM;
return 0;
}
if (cd) {
last_called_index = cd->lpcd_first_idx;
index = cd->lpcd_first_idx + 1;
}
if (cd && cd->lpcd_last_idx)
last_index = cd->lpcd_last_idx;
else
last_index = LLOG_HDR_BITMAP_SIZE(llh) - 1;
while (rc == 0) {
unsigned int buf_offset = 0;
struct llog_rec_hdr *rec;
bool partial_chunk;
off_t chunk_offset;
/* skip records not set in bitmap */
while (index <= last_index &&
!ext2_test_bit(index, LLOG_HDR_BITMAP(llh)))
++index;
if (index > last_index)
break;
CDEBUG(D_OTHER, "index: %d last_index %d\n",
index, last_index);
repeat:
/* get the buf with our target record; avoid old garbage */
memset(buf, 0, chunk_size);
rc = llog_next_block(lpi->lpi_env, loghandle, &saved_index,
index, &cur_offset, buf, chunk_size);
if (rc)
goto out;
/*
* NB: after llog_next_block() call the cur_offset is the
* offset of the next block after read one.
* The absolute offset of the current chunk is calculated
* from cur_offset value and stored in chunk_offset variable.
*/
tmp_offset = cur_offset;
if (do_div(tmp_offset, chunk_size)) {
partial_chunk = true;
chunk_offset = cur_offset & ~(chunk_size - 1);
} else {
partial_chunk = false;
chunk_offset = cur_offset - chunk_size;
}
/* NB: when rec->lrh_len is accessed it is already swabbed
* since it is used at the "end" of the loop and the rec
* swabbing is done at the beginning of the loop.
*/
for (rec = (struct llog_rec_hdr *)(buf + buf_offset);
(char *)rec < buf + chunk_size;
rec = llog_rec_hdr_next(rec)) {
CDEBUG(D_OTHER, "processing rec 0x%p type %#x\n",
rec, rec->lrh_type);
if (LLOG_REC_HDR_NEEDS_SWABBING(rec))
lustre_swab_llog_rec(rec);
CDEBUG(D_OTHER, "after swabbing, type=%#x idx=%d\n",
rec->lrh_type, rec->lrh_index);
/*
* for partial chunk the end of it is zeroed, check
* for index 0 to distinguish it.
*/
if (partial_chunk && !rec->lrh_index) {
/* concurrent llog_add() might add new records
* while llog_processing, check this is not
* the case and re-read the current chunk
* otherwise.
*/
if (index > loghandle->lgh_last_idx) {
rc = 0;
goto out;
}
CDEBUG(D_OTHER, "Re-read last llog buffer for new records, index %u, last %u\n",
index, loghandle->lgh_last_idx);
/* save offset inside buffer for the re-read */
buf_offset = (char *)rec - (char *)buf;
cur_offset = chunk_offset;
goto repeat;
}
if (!rec->lrh_len || rec->lrh_len > chunk_size) {
CWARN("invalid length %d in llog record for index %d/%d\n",
rec->lrh_len,
rec->lrh_index, index);
rc = -EINVAL;
goto out;
}
if (rec->lrh_index < index) {
CDEBUG(D_OTHER, "skipping lrh_index %d\n",
rec->lrh_index);
continue;
}
if (rec->lrh_index != index) {
CERROR("%s: Invalid record: index %u but expected %u\n",
loghandle->lgh_ctxt->loc_obd->obd_name,
rec->lrh_index, index);
rc = -ERANGE;
goto out;
}
CDEBUG(D_OTHER,
"lrh_index: %d lrh_len: %d (%d remains)\n",
rec->lrh_index, rec->lrh_len,
(int)(buf + chunk_size - (char *)rec));
loghandle->lgh_cur_idx = rec->lrh_index;
loghandle->lgh_cur_offset = (char *)rec - (char *)buf +
chunk_offset;
/* if set, process the callback on this record */
if (ext2_test_bit(index, LLOG_HDR_BITMAP(llh))) {
rc = lpi->lpi_cb(lpi->lpi_env, loghandle, rec,
lpi->lpi_cbdata);
last_called_index = index;
if (rc)
goto out;
}
/* exit if the last index is reached */
if (index >= last_index) {
rc = 0;
goto out;
}
index++;
}
}
out:
if (cd)
cd->lpcd_last_idx = last_called_index;
kfree(buf);
lpi->lpi_rc = rc;
return 0;
}
int llog_init_handle(const struct lu_env *env, struct llog_handle *handle,
int flags, struct obd_uuid *uuid)
{
int chunk_size = handle->lgh_ctxt->loc_chunk_size;
enum llog_flag fmt = flags & LLOG_F_EXT_MASK;
struct llog_log_hdr *llh;
int rc;
LASSERT(!handle->lgh_hdr);
LASSERT(chunk_size >= LLOG_MIN_CHUNK_SIZE);
llh = libcfs_kvzalloc(sizeof(*llh), GFP_NOFS);
if (!llh)
return -ENOMEM;
handle->lgh_hdr = llh;
handle->lgh_hdr_size = chunk_size;
/* first assign flags to use llog_client_ops */
llh->llh_flags = flags;
rc = llog_read_header(env, handle, uuid);
if (rc == 0) {
if (unlikely((llh->llh_flags & LLOG_F_IS_PLAIN &&
flags & LLOG_F_IS_CAT) ||
(llh->llh_flags & LLOG_F_IS_CAT &&
flags & LLOG_F_IS_PLAIN))) {
CERROR("%s: llog type is %s but initializing %s\n",
handle->lgh_ctxt->loc_obd->obd_name,
llh->llh_flags & LLOG_F_IS_CAT ?
"catalog" : "plain",
flags & LLOG_F_IS_CAT ? "catalog" : "plain");
rc = -EINVAL;
goto out;
} else if (llh->llh_flags &
(LLOG_F_IS_PLAIN | LLOG_F_IS_CAT)) {
/*
* it is possible to open llog without specifying llog
* type so it is taken from llh_flags
*/
flags = llh->llh_flags;
} else {
/* for some reason the llh_flags has no type set */
CERROR("llog type is not specified!\n");
rc = -EINVAL;
goto out;
}
if (unlikely(uuid &&
!obd_uuid_equals(uuid, &llh->llh_tgtuuid))) {
CERROR("%s: llog uuid mismatch: %s/%s\n",
handle->lgh_ctxt->loc_obd->obd_name,
(char *)uuid->uuid,
(char *)llh->llh_tgtuuid.uuid);
rc = -EEXIST;
goto out;
}
}
if (flags & LLOG_F_IS_CAT) {
LASSERT(list_empty(&handle->u.chd.chd_head));
INIT_LIST_HEAD(&handle->u.chd.chd_head);
llh->llh_size = sizeof(struct llog_logid_rec);
llh->llh_flags |= LLOG_F_IS_FIXSIZE;
} else if (!(flags & LLOG_F_IS_PLAIN)) {
CERROR("%s: unknown flags: %#x (expected %#x or %#x)\n",
handle->lgh_ctxt->loc_obd->obd_name,
flags, LLOG_F_IS_CAT, LLOG_F_IS_PLAIN);
rc = -EINVAL;
}
llh->llh_flags |= fmt;
out:
if (rc) {
kvfree(llh);
handle->lgh_hdr = NULL;
}
return rc;
}