static void lov_lock_cancel(const struct lu_env *env,
const struct cl_lock_slice *slice)
{
struct cl_lock *lock = slice->cls_lock;
struct lov_lock *lovlck = cl2lov_lock(slice);
int i;
for (i = 0; i < lovlck->lls_nr; ++i) {
struct lov_lock_sub *lls = &lovlck->lls_sub[i];
struct cl_lock *sublock = &lls->sub_lock;
struct lov_sublock_env *subenv;
if (!lls->sub_is_enqueued)
continue;
lls->sub_is_enqueued = 0;
subenv = lov_sublock_env_get(env, lock, lls);
if (!IS_ERR(subenv)) {
cl_lock_cancel(subenv->lse_env, sublock);
lov_sublock_env_put(subenv);
} else {
CL_LOCK_DEBUG(D_ERROR, env, slice->cls_lock,
"lov_lock_cancel fails with %ld.\n",
PTR_ERR(subenv));
}
}
}
/**
* Implementation of struct cl_req_operations::cro_attr_set() for osc
* layer. osc is responsible for struct obdo::o_id and struct obdo::o_seq
* fields.
*/
static void osc_req_attr_set(const struct lu_env *env,
const struct cl_req_slice *slice,
const struct cl_object *obj,
struct cl_req_attr *attr, u64 flags)
{
struct lov_oinfo *oinfo;
struct cl_req *clerq;
struct cl_page *apage; /* _some_ page in @clerq */
struct cl_lock *lock; /* _some_ lock protecting @apage */
struct osc_lock *olck;
struct osc_page *opg;
struct obdo *oa;
struct ost_lvb *lvb;
oinfo = cl2osc(obj)->oo_oinfo;
lvb = &oinfo->loi_lvb;
oa = attr->cra_oa;
if ((flags & OBD_MD_FLMTIME) != 0) {
oa->o_mtime = lvb->lvb_mtime;
oa->o_valid |= OBD_MD_FLMTIME;
}
if ((flags & OBD_MD_FLATIME) != 0) {
oa->o_atime = lvb->lvb_atime;
oa->o_valid |= OBD_MD_FLATIME;
}
if ((flags & OBD_MD_FLCTIME) != 0) {
oa->o_ctime = lvb->lvb_ctime;
oa->o_valid |= OBD_MD_FLCTIME;
}
if (flags & OBD_MD_FLGROUP) {
ostid_set_seq(&oa->o_oi, ostid_seq(&oinfo->loi_oi));
oa->o_valid |= OBD_MD_FLGROUP;
}
if (flags & OBD_MD_FLID) {
ostid_set_id(&oa->o_oi, ostid_id(&oinfo->loi_oi));
oa->o_valid |= OBD_MD_FLID;
}
if (flags & OBD_MD_FLHANDLE) {
clerq = slice->crs_req;
LASSERT(!list_empty(&clerq->crq_pages));
apage = container_of(clerq->crq_pages.next,
struct cl_page, cp_flight);
opg = osc_cl_page_osc(apage);
apage = opg->ops_cl.cpl_page; /* now apage is a sub-page */
lock = cl_lock_at_page(env, apage->cp_obj, apage, NULL, 1, 1);
if (lock == NULL) {
struct cl_object_header *head;
struct cl_lock *scan;
head = cl_object_header(apage->cp_obj);
list_for_each_entry(scan, &head->coh_locks,
cll_linkage)
CL_LOCK_DEBUG(D_ERROR, env, scan,
"no cover page!\n");
CL_PAGE_DEBUG(D_ERROR, env, apage,
"dump uncover page!\n");
dump_stack();
LBUG();
}
olck = osc_lock_at(lock);
LASSERT(olck != NULL);
LASSERT(ergo(opg->ops_srvlock, olck->ols_lock == NULL));
/* check for lockless io. */
if (olck->ols_lock != NULL) {
oa->o_handle = olck->ols_lock->l_remote_handle;
oa->o_valid |= OBD_MD_FLHANDLE;
}
cl_lock_put(env, lock);
}
