static inline void osc_pack_req_body(struct ptlrpc_request *req,
struct obd_info *oinfo)
{
- struct ost_body *body;
+ struct ost_body *body;
- body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
- LASSERT(body);
+ body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
+ LASSERT(body);
- lustre_set_wire_obdo(&body->oa, oinfo->oi_oa);
- osc_pack_capa(req, body, oinfo->oi_capa);
+ lustre_set_wire_obdo(&req->rq_import->imp_connect_data, &body->oa,
+ oinfo->oi_oa);
+ osc_pack_capa(req, body, oinfo->oi_capa);
}
static inline void osc_set_capa_size(struct ptlrpc_request *req,
body = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
if (body) {
- CDEBUG(D_INODE, "mode: %o\n", body->oa.o_mode);
- lustre_get_wire_obdo(aa->aa_oi->oi_oa, &body->oa);
+ CDEBUG(D_INODE, "mode: %o\n", body->oa.o_mode);
+ lustre_get_wire_obdo(&req->rq_import->imp_connect_data,
+ aa->aa_oi->oi_oa, &body->oa);
/* This should really be sent by the OST */
aa->aa_oi->oi_oa->o_blksize = DT_MAX_BRW_SIZE;
if (body == NULL)
GOTO(out, rc = -EPROTO);
- CDEBUG(D_INODE, "mode: %o\n", body->oa.o_mode);
- lustre_get_wire_obdo(oinfo->oi_oa, &body->oa);
+ CDEBUG(D_INODE, "mode: %o\n", body->oa.o_mode);
+ lustre_get_wire_obdo(&req->rq_import->imp_connect_data, oinfo->oi_oa,
+ &body->oa);
oinfo->oi_oa->o_blksize = cli_brw_size(exp->exp_obd);
oinfo->oi_oa->o_valid |= OBD_MD_FLBLKSZ;
if (body == NULL)
GOTO(out, rc = -EPROTO);
- lustre_get_wire_obdo(oinfo->oi_oa, &body->oa);
+ lustre_get_wire_obdo(&req->rq_import->imp_connect_data, oinfo->oi_oa,
+ &body->oa);
EXIT;
out:
if (body == NULL)
GOTO(out, rc = -EPROTO);
- lustre_get_wire_obdo(sa->sa_oa, &body->oa);
+ lustre_get_wire_obdo(&req->rq_import->imp_connect_data, sa->sa_oa,
+ &body->oa);
out:
rc = sa->sa_upcall(sa->sa_cookie, rc);
RETURN(rc);
body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
LASSERT(body);
- lustre_set_wire_obdo(&body->oa, oa);
+
+ lustre_set_wire_obdo(&req->rq_import->imp_connect_data, &body->oa, oa);
ptlrpc_request_set_replen(req);
if (body == NULL)
GOTO(out_req, rc = -EPROTO);
- lustre_get_wire_obdo(oa, &body->oa);
+ CDEBUG(D_INFO, "oa flags %x\n", oa->o_flags);
+ lustre_get_wire_obdo(&req->rq_import->imp_connect_data, oa, &body->oa);
oa->o_blksize = cli_brw_size(exp->exp_obd);
oa->o_valid |= OBD_MD_FLBLKSZ;
req->rq_request_portal = OST_IO_PORTAL; /* bug 7198 */
ptlrpc_at_set_req_timeout(req);
- body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
- LASSERT(body);
- lustre_set_wire_obdo(&body->oa, oinfo->oi_oa);
- osc_pack_capa(req, body, oinfo->oi_capa);
+ body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
+ LASSERT(body);
+ lustre_set_wire_obdo(&req->rq_import->imp_connect_data, &body->oa,
+ oinfo->oi_oa);
+ osc_pack_capa(req, body, oinfo->oi_capa);
ptlrpc_request_set_replen(req);
RETURN(rc);
}
- /* overload the size and blocks fields in the oa with start/end */
- body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
- LASSERT(body);
- lustre_set_wire_obdo(&body->oa, oinfo->oi_oa);
- osc_pack_capa(req, body, oinfo->oi_capa);
+ /* overload the size and blocks fields in the oa with start/end */
+ body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
+ LASSERT(body);
+ lustre_set_wire_obdo(&req->rq_import->imp_connect_data, &body->oa,
+ oinfo->oi_oa);
+ osc_pack_capa(req, body, oinfo->oi_capa);
ptlrpc_request_set_replen(req);
req->rq_interpret_reply = osc_sync_interpret;
* @objid. Found locks are added into @cancel list. Returns the amount of
* locks added to @cancels list. */
static int osc_resource_get_unused(struct obd_export *exp, struct obdo *oa,
- cfs_list_t *cancels,
- ldlm_mode_t mode, int lock_flags)
+ cfs_list_t *cancels,
+ ldlm_mode_t mode, __u64 lock_flags)
{
struct ldlm_namespace *ns = exp->exp_obd->obd_namespace;
struct ldlm_res_id res_id;
}
static int osc_destroy_interpret(const struct lu_env *env,
- struct ptlrpc_request *req, void *data,
- int rc)
+ struct ptlrpc_request *req, void *data,
+ int rc)
{
- struct client_obd *cli = &req->rq_import->imp_obd->u.cli;
+ struct client_obd *cli = &req->rq_import->imp_obd->u.cli;
- cfs_atomic_dec(&cli->cl_destroy_in_flight);
- cfs_waitq_signal(&cli->cl_destroy_waitq);
- return 0;
+ cfs_atomic_dec(&cli->cl_destroy_in_flight);
+ wake_up(&cli->cl_destroy_waitq);
+ return 0;
}
static int osc_can_send_destroy(struct client_obd *cli)
{
- if (cfs_atomic_inc_return(&cli->cl_destroy_in_flight) <=
- cli->cl_max_rpcs_in_flight) {
- /* The destroy request can be sent */
- return 1;
- }
- if (cfs_atomic_dec_return(&cli->cl_destroy_in_flight) <
- cli->cl_max_rpcs_in_flight) {
- /*
- * The counter has been modified between the two atomic
- * operations.
- */
- cfs_waitq_signal(&cli->cl_destroy_waitq);
- }
- return 0;
+ if (cfs_atomic_inc_return(&cli->cl_destroy_in_flight) <=
+ cli->cl_max_rpcs_in_flight) {
+ /* The destroy request can be sent */
+ return 1;
+ }
+ if (cfs_atomic_dec_return(&cli->cl_destroy_in_flight) <
+ cli->cl_max_rpcs_in_flight) {
+ /*
+ * The counter has been modified between the two atomic
+ * operations.
+ */
+ wake_up(&cli->cl_destroy_waitq);
+ }
+ return 0;
}
int osc_create(const struct lu_env *env, struct obd_export *exp,
req->rq_request_portal = OST_IO_PORTAL; /* bug 7198 */
ptlrpc_at_set_req_timeout(req);
- if (oti != NULL && oa->o_valid & OBD_MD_FLCOOKIE)
- oa->o_lcookie = *oti->oti_logcookies;
- body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
- LASSERT(body);
- lustre_set_wire_obdo(&body->oa, oa);
+ if (oti != NULL && oa->o_valid & OBD_MD_FLCOOKIE)
+ oa->o_lcookie = *oti->oti_logcookies;
+ body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
+ LASSERT(body);
+ lustre_set_wire_obdo(&req->rq_import->imp_connect_data, &body->oa, oa);
osc_pack_capa(req, body, (struct obd_capa *)capa);
ptlrpc_request_set_replen(req);
CERROR("dirty %lu - %lu > dirty_max %lu\n",
cli->cl_dirty, cli->cl_dirty_transit, cli->cl_dirty_max);
oa->o_undirty = 0;
- } else if (unlikely(cfs_atomic_read(&obd_dirty_pages) -
+ } else if (unlikely(cfs_atomic_read(&obd_unstable_pages) +
+ cfs_atomic_read(&obd_dirty_pages) -
cfs_atomic_read(&obd_dirty_transit_pages) >
(long)(obd_max_dirty_pages + 1))) {
/* The cfs_atomic_read() allowing the cfs_atomic_inc() are
* not covered by a lock thus they may safely race and trip
* this CERROR() unless we add in a small fudge factor (+1). */
- CERROR("dirty %d - %d > system dirty_max %d\n",
+ CERROR("%s: dirty %d + %d - %d > system dirty_max %d\n",
+ cli->cl_import->imp_obd->obd_name,
+ cfs_atomic_read(&obd_unstable_pages),
cfs_atomic_read(&obd_dirty_pages),
cfs_atomic_read(&obd_dirty_transit_pages),
obd_max_dirty_pages);
oa->o_undirty = 0;
} else {
long max_in_flight = (cli->cl_max_pages_per_rpc <<
- CFS_PAGE_SHIFT)*
+ PAGE_CACHE_SHIFT) *
(cli->cl_max_rpcs_in_flight + 1);
oa->o_undirty = max(cli->cl_dirty_max, max_in_flight);
}
static int osc_shrink_grant(struct client_obd *cli)
{
__u64 target_bytes = (cli->cl_max_rpcs_in_flight + 1) *
- (cli->cl_max_pages_per_rpc << CFS_PAGE_SHIFT);
+ (cli->cl_max_pages_per_rpc << PAGE_CACHE_SHIFT);
client_obd_list_lock(&cli->cl_loi_list_lock);
if (cli->cl_avail_grant <= target_bytes)
- target_bytes = cli->cl_max_pages_per_rpc << CFS_PAGE_SHIFT;
+ target_bytes = cli->cl_max_pages_per_rpc << PAGE_CACHE_SHIFT;
client_obd_list_unlock(&cli->cl_loi_list_lock);
return osc_shrink_grant_to_target(cli, target_bytes);
/* Don't shrink if we are already above or below the desired limit
* We don't want to shrink below a single RPC, as that will negatively
* impact block allocation and long-term performance. */
- if (target_bytes < cli->cl_max_pages_per_rpc << CFS_PAGE_SHIFT)
- target_bytes = cli->cl_max_pages_per_rpc << CFS_PAGE_SHIFT;
+ if (target_bytes < cli->cl_max_pages_per_rpc << PAGE_CACHE_SHIFT)
+ target_bytes = cli->cl_max_pages_per_rpc << PAGE_CACHE_SHIFT;
if (target_bytes >= cli->cl_avail_grant) {
client_obd_list_unlock(&cli->cl_loi_list_lock);
/* Get the current RPC size directly, instead of going via:
* cli_brw_size(obd->u.cli.cl_import->imp_obd->obd_self_export)
* Keep comment here so that it can be found by searching. */
- int brw_size = client->cl_max_pages_per_rpc << CFS_PAGE_SHIFT;
+ int brw_size = client->cl_max_pages_per_rpc << PAGE_CACHE_SHIFT;
if (client->cl_import->imp_state == LUSTRE_IMP_FULL &&
client->cl_avail_grant > brw_size)
}
/* determine the appropriate chunk size used by osc_extent. */
- cli->cl_chunkbits = max_t(int, CFS_PAGE_SHIFT, ocd->ocd_blocksize);
+ cli->cl_chunkbits = max_t(int, PAGE_CACHE_SHIFT, ocd->ocd_blocksize);
client_obd_list_unlock(&cli->cl_loi_list_lock);
CDEBUG(D_CACHE, "%s, setting cl_avail_grant: %ld cl_lost_grant: %ld."
while (nob_read > 0) {
LASSERT (page_count > 0);
- if (pga[i]->count > nob_read) {
- /* EOF inside this page */
- ptr = cfs_kmap(pga[i]->pg) +
- (pga[i]->off & ~CFS_PAGE_MASK);
- memset(ptr + nob_read, 0, pga[i]->count - nob_read);
- cfs_kunmap(pga[i]->pg);
- page_count--;
- i++;
- break;
- }
+ if (pga[i]->count > nob_read) {
+ /* EOF inside this page */
+ ptr = kmap(pga[i]->pg) +
+ (pga[i]->off & ~CFS_PAGE_MASK);
+ memset(ptr + nob_read, 0, pga[i]->count - nob_read);
+ kunmap(pga[i]->pg);
+ page_count--;
+ i++;
+ break;
+ }
nob_read -= pga[i]->count;
page_count--;
i++;
}
- /* zero remaining pages */
- while (page_count-- > 0) {
- ptr = cfs_kmap(pga[i]->pg) + (pga[i]->off & ~CFS_PAGE_MASK);
- memset(ptr, 0, pga[i]->count);
- cfs_kunmap(pga[i]->pg);
- i++;
- }
+ /* zero remaining pages */
+ while (page_count-- > 0) {
+ ptr = kmap(pga[i]->pg) + (pga[i]->off & ~CFS_PAGE_MASK);
+ memset(ptr, 0, pga[i]->count);
+ kunmap(pga[i]->pg);
+ i++;
+ }
}
static int check_write_rcs(struct ptlrpc_request *req,
* simulate an OST->client data error */
if (i == 0 && opc == OST_READ &&
OBD_FAIL_CHECK(OBD_FAIL_OSC_CHECKSUM_RECEIVE)) {
- unsigned char *ptr = cfs_kmap(pga[i]->pg);
+ unsigned char *ptr = kmap(pga[i]->pg);
int off = pga[i]->off & ~CFS_PAGE_MASK;
memcpy(ptr + off, "bad1", min(4, nob));
- cfs_kunmap(pga[i]->pg);
+ kunmap(pga[i]->pg);
}
cfs_crypto_hash_update_page(hdesc, pga[i]->pg,
pga[i]->off & ~CFS_PAGE_MASK,
niobuf = req_capsule_client_get(pill, &RMF_NIOBUF_REMOTE);
LASSERT(body != NULL && ioobj != NULL && niobuf != NULL);
- lustre_set_wire_obdo(&body->oa, oa);
+ lustre_set_wire_obdo(&req->rq_import->imp_connect_data, &body->oa, oa);
obdo_to_ioobj(oa, ioobj);
ioobj->ioo_bufcnt = niocount;
LASSERT(pg->count > 0);
/* make sure there is no gap in the middle of page array */
- LASSERTF(page_count == 1 ||
- (ergo(i == 0, poff + pg->count == CFS_PAGE_SIZE) &&
- ergo(i > 0 && i < page_count - 1,
- poff == 0 && pg->count == CFS_PAGE_SIZE) &&
- ergo(i == page_count - 1, poff == 0)),
- "i: %d/%d pg: %p off: "LPU64", count: %u\n",
- i, page_count, pg, pg->off, pg->count);
+ LASSERTF(page_count == 1 ||
+ (ergo(i == 0, poff + pg->count == PAGE_CACHE_SIZE) &&
+ ergo(i > 0 && i < page_count - 1,
+ poff == 0 && pg->count == PAGE_CACHE_SIZE) &&
+ ergo(i == page_count - 1, poff == 0)),
+ "i: %d/%d pg: %p off: "LPU64", count: %u\n",
+ i, page_count, pg, pg->off, pg->count);
#ifdef __linux__
LASSERTF(i == 0 || pg->off > pg_prev->off,
"i %d p_c %u pg %p [pri %lu ind %lu] off "LPU64
rc = 0;
}
out:
- if (rc >= 0)
- lustre_get_wire_obdo(aa->aa_oa, &body->oa);
+ if (rc >= 0)
+ lustre_get_wire_obdo(&req->rq_import->imp_connect_data,
+ aa->aa_oa, &body->oa);
RETURN(rc);
}
obd_count page_count, struct brw_page **pga,
struct obd_capa *ocapa)
{
- struct ptlrpc_request *req;
- int rc;
- cfs_waitq_t waitq;
- int generation, resends = 0;
- struct l_wait_info lwi;
+ struct ptlrpc_request *req;
+ int rc;
+ wait_queue_head_t waitq;
+ int generation, resends = 0;
+ struct l_wait_info lwi;
- ENTRY;
+ ENTRY;
- cfs_waitq_init(&waitq);
- generation = exp->exp_obd->u.cli.cl_import->imp_generation;
+ init_waitqueue_head(&waitq);
+ generation = exp->exp_obd->u.cli.cl_import->imp_generation;
restart_bulk:
rc = osc_brw_prep_request(cmd, &exp->exp_obd->u.cli, oa, lsm,
aa->aa_resends++;
new_req->rq_interpret_reply = request->rq_interpret_reply;
new_req->rq_async_args = request->rq_async_args;
+ new_req->rq_commit_cb = request->rq_commit_cb;
/* cap resend delay to the current request timeout, this is similar to
* what ptlrpc does (see after_reply()) */
if (aa->aa_resends > new_req->rq_timeout)
if (pages == 0) /* that's all */
return count;
- if (offset + pg[i]->count < CFS_PAGE_SIZE)
+ if (offset + pg[i]->count < PAGE_CACHE_SIZE)
return count; /* doesn't end on page boundary */
i++;
RETURN(rc);
}
+static void brw_commit(struct ptlrpc_request *req)
+{
+ spin_lock(&req->rq_lock);
+ /* If osc_inc_unstable_pages (via osc_extent_finish) races with
+ * this called via the rq_commit_cb, I need to ensure
+ * osc_dec_unstable_pages is still called. Otherwise unstable
+ * pages may be leaked. */
+ if (req->rq_unstable) {
+ spin_unlock(&req->rq_lock);
+ osc_dec_unstable_pages(req);
+ spin_lock(&req->rq_lock);
+ } else {
+ req->rq_committed = 1;
+ }
+ spin_unlock(&req->rq_lock);
+}
+
/**
* Build an RPC by the list of extent @ext_list. The caller must ensure
* that the total pages in this list are NOT over max pages per RPC.
oap->oap_count;
else
LASSERT(oap->oap_page_off + oap->oap_count ==
- CFS_PAGE_SIZE);
+ PAGE_CACHE_SIZE);
}
}
pga[i] = &oap->oap_brw_page;
pga[i]->off = oap->oap_obj_off + oap->oap_page_off;
CDEBUG(0, "put page %p index %lu oap %p flg %x to pga\n",
- pga[i]->pg, cfs_page_index(oap->oap_page), oap,
+ pga[i]->pg, page_index(oap->oap_page), oap,
pga[i]->flag);
i++;
cl_req_page_add(env, clerq, page);
GOTO(out, rc);
}
+ req->rq_commit_cb = brw_commit;
req->rq_interpret_reply = brw_interpret;
+
if (mem_tight != 0)
req->rq_memalloc = 1;
tmp->oap_request = ptlrpc_request_addref(req);
client_obd_list_lock(&cli->cl_loi_list_lock);
- starting_offset >>= CFS_PAGE_SHIFT;
+ starting_offset >>= PAGE_CACHE_SHIFT;
if (cmd == OBD_BRW_READ) {
cli->cl_r_in_flight++;
lprocfs_oh_tally_log2(&cli->cl_read_page_hist, page_count);
&RMF_DLM_REP);
LASSERT(rep != NULL);
+ rep->lock_policy_res1 =
+ ptlrpc_status_ntoh(rep->lock_policy_res1);
if (rep->lock_policy_res1)
rc = rep->lock_policy_res1;
}
}
void osc_update_enqueue(struct lustre_handle *lov_lockhp,
- struct lov_oinfo *loi, int flags,
- struct ost_lvb *lvb, __u32 mode, int rc)
+ struct lov_oinfo *loi, __u64 flags,
+ struct ost_lvb *lvb, __u32 mode, int rc)
{
struct ldlm_lock *lock = ldlm_handle2lock(lov_lockhp);
* release locks just after they are obtained. */
int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id,
__u64 *flags, ldlm_policy_data_t *policy,
- struct ost_lvb *lvb, int kms_valid,
- obd_enqueue_update_f upcall, void *cookie,
- struct ldlm_enqueue_info *einfo,
- struct lustre_handle *lockh,
- struct ptlrpc_request_set *rqset, int async, int agl)
-{
- struct obd_device *obd = exp->exp_obd;
- struct ptlrpc_request *req = NULL;
- int intent = *flags & LDLM_FL_HAS_INTENT;
- int match_lvb = (agl != 0 ? 0 : LDLM_FL_LVB_READY);
- ldlm_mode_t mode;
- int rc;
- ENTRY;
+ struct ost_lvb *lvb, int kms_valid,
+ obd_enqueue_update_f upcall, void *cookie,
+ struct ldlm_enqueue_info *einfo,
+ struct lustre_handle *lockh,
+ struct ptlrpc_request_set *rqset, int async, int agl)
+{
+ struct obd_device *obd = exp->exp_obd;
+ struct ptlrpc_request *req = NULL;
+ int intent = *flags & LDLM_FL_HAS_INTENT;
+ __u64 match_lvb = (agl != 0 ? 0 : LDLM_FL_LVB_READY);
+ ldlm_mode_t mode;
+ int rc;
+ ENTRY;
/* Filesystem lock extents are extended to page boundaries so that
* dealing with the page cache is a little smoother. */
if (mode) {
struct ldlm_lock *matched = ldlm_handle2lock(lockh);
- if ((agl != 0) && !(matched->l_flags & LDLM_FL_LVB_READY)) {
+ if ((agl != 0) && !ldlm_is_lvb_ready(matched)) {
/* For AGL, if enqueue RPC is sent but the lock is not
* granted, then skip to process this strpe.
* Return -ECANCELED to tell the caller. */
}
int osc_match_base(struct obd_export *exp, struct ldlm_res_id *res_id,
- __u32 type, ldlm_policy_data_t *policy, __u32 mode,
- int *flags, void *data, struct lustre_handle *lockh,
- int unref)
+ __u32 type, ldlm_policy_data_t *policy, __u32 mode,
+ __u64 *flags, void *data, struct lustre_handle *lockh,
+ int unref)
{
- struct obd_device *obd = exp->exp_obd;
- int lflags = *flags;
- ldlm_mode_t rc;
- ENTRY;
+ struct obd_device *obd = exp->exp_obd;
+ __u64 lflags = *flags;
+ ldlm_mode_t rc;
+ ENTRY;
if (OBD_FAIL_CHECK(OBD_FAIL_OSC_MATCH))
RETURN(-EIO);
/* we only need the header part from user space to get lmm_magic and
* lmm_stripe_count, (the header part is common to v1 and v3) */
lum_size = sizeof(struct lov_user_md_v1);
- if (cfs_copy_from_user(&lum, lump, lum_size))
+ if (copy_from_user(&lum, lump, lum_size))
RETURN(-EFAULT);
if ((lum.lmm_magic != LOV_USER_MAGIC_V1) &&
}
lumk->lmm_oi = lsm->lsm_oi;
- lumk->lmm_stripe_count = 1;
+ lumk->lmm_stripe_count = 1;
- if (cfs_copy_to_user(lump, lumk, lum_size))
- rc = -EFAULT;
+ if (copy_to_user(lump, lumk, lum_size))
+ rc = -EFAULT;
- if (lumk != &lum)
- OBD_FREE(lumk, lum_size);
+ if (lumk != &lum)
+ OBD_FREE(lumk, lum_size);
- RETURN(rc);
+ RETURN(rc);
}
int err = 0;
ENTRY;
- if (!cfs_try_module_get(THIS_MODULE)) {
- CERROR("Can't get module. Is it alive?");
- return -EINVAL;
- }
+ if (!try_module_get(THIS_MODULE)) {
+ CERROR("Can't get module. Is it alive?");
+ return -EINVAL;
+ }
switch (cmd) {
case OBD_IOC_LOV_GET_CONFIG: {
char *buf;
memcpy(data->ioc_inlbuf2, &obd->obd_uuid, sizeof(uuid));
- err = cfs_copy_to_user((void *)uarg, buf, len);
+ err = copy_to_user((void *)uarg, buf, len);
if (err)
err = -EFAULT;
obd_ioctl_freedata(buf, len);
case OBD_IOC_PING_TARGET:
err = ptlrpc_obd_ping(obd);
GOTO(out, err);
- default:
- CDEBUG(D_INODE, "unrecognised ioctl %#x by %s\n",
- cmd, cfs_curproc_comm());
- GOTO(out, err = -ENOTTY);
- }
+ default:
+ CDEBUG(D_INODE, "unrecognised ioctl %#x by %s\n",
+ cmd, current_comm());
+ GOTO(out, err = -ENOTTY);
+ }
out:
- cfs_module_put(THIS_MODULE);
- return err;
+ module_put(THIS_MODULE);
+ return err;
}
static int osc_get_info(const struct lu_env *env, struct obd_export *exp,
ptlrpc_req_finished(req);
RETURN(rc);
} else if (KEY_IS(KEY_FIEMAP)) {
- struct ptlrpc_request *req;
- struct ll_user_fiemap *reply;
- char *tmp;
- int rc;
+ struct ll_fiemap_info_key *fm_key =
+ (struct ll_fiemap_info_key *)key;
+ struct ldlm_res_id res_id;
+ ldlm_policy_data_t policy;
+ struct lustre_handle lockh;
+ ldlm_mode_t mode = 0;
+ struct ptlrpc_request *req;
+ struct ll_user_fiemap *reply;
+ char *tmp;
+ int rc;
+
+ if (!(fm_key->fiemap.fm_flags & FIEMAP_FLAG_SYNC))
+ goto skip_locking;
+
+ policy.l_extent.start = fm_key->fiemap.fm_start &
+ CFS_PAGE_MASK;
+
+ if (OBD_OBJECT_EOF - fm_key->fiemap.fm_length <=
+ fm_key->fiemap.fm_start + PAGE_CACHE_SIZE - 1)
+ policy.l_extent.end = OBD_OBJECT_EOF;
+ else
+ policy.l_extent.end = (fm_key->fiemap.fm_start +
+ fm_key->fiemap.fm_length +
+ PAGE_CACHE_SIZE - 1) & CFS_PAGE_MASK;
+
+ ostid_build_res_name(&fm_key->oa.o_oi, &res_id);
+ mode = ldlm_lock_match(exp->exp_obd->obd_namespace,
+ LDLM_FL_BLOCK_GRANTED |
+ LDLM_FL_LVB_READY,
+ &res_id, LDLM_EXTENT, &policy,
+ LCK_PR | LCK_PW, &lockh, 0);
+ if (mode) { /* lock is cached on client */
+ if (mode != LCK_PR) {
+ ldlm_lock_addref(&lockh, LCK_PR);
+ ldlm_lock_decref(&lockh, LCK_PW);
+ }
+ } else { /* no cached lock, needs acquire lock on server side */
+ fm_key->oa.o_valid |= OBD_MD_FLFLAGS;
+ fm_key->oa.o_flags |= OBD_FL_SRVLOCK;
+ }
+skip_locking:
req = ptlrpc_request_alloc(class_exp2cliimp(exp),
&RQF_OST_GET_INFO_FIEMAP);
if (req == NULL)
- RETURN(-ENOMEM);
+ GOTO(drop_lock, rc = -ENOMEM);
req_capsule_set_size(&req->rq_pill, &RMF_FIEMAP_KEY,
RCL_CLIENT, keylen);
rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_GET_INFO);
if (rc) {
ptlrpc_request_free(req);
- RETURN(rc);
+ GOTO(drop_lock, rc);
}
tmp = req_capsule_client_get(&req->rq_pill, &RMF_FIEMAP_KEY);
ptlrpc_request_set_replen(req);
rc = ptlrpc_queue_wait(req);
if (rc)
- GOTO(out1, rc);
+ GOTO(fini_req, rc);
reply = req_capsule_server_get(&req->rq_pill, &RMF_FIEMAP_VAL);
if (reply == NULL)
- GOTO(out1, rc = -EPROTO);
+ GOTO(fini_req, rc = -EPROTO);
memcpy(val, reply, *vallen);
- out1:
+fini_req:
ptlrpc_req_finished(req);
-
+drop_lock:
+ if (mode)
+ ldlm_lock_decref(&lockh, LCK_PR);
RETURN(rc);
}
CDEBUG(D_INFO, "Lustre OSC module (%p).\n", &osc_caches);
rc = lu_kmem_init(osc_caches);
+ if (rc)
+ RETURN(rc);
lprocfs_osc_init_vars(&lvars);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff