/*
* Concurrency: shouldn't matter.
*/
static int osd_object_print(const struct lu_env *env, void *cookie,
lu_printer_t p, const struct lu_object *l)
{
struct osd_object *o = osd_obj(l);
return (*p)(env, cookie, LUSTRE_OSD_ZFS_NAME"-object@%p", o);
}
/*
* Concurrency: no concurrent access is possible that early in object
* life-cycle.
*/
static int osd_object_init(const struct lu_env *env, struct lu_object *l,
const struct lu_object_conf *conf)
{
struct osd_object *obj = osd_obj(l);
struct osd_device *osd = osd_obj2dev(obj);
uint64_t oid;
int rc;
ENTRY;
LASSERT(osd_invariant(obj));
if (fid_is_otable_it(&l->lo_header->loh_fid)) {
obj->oo_dt.do_ops = &osd_obj_otable_it_ops;
l->lo_header->loh_attr |= LOHA_EXISTS;
RETURN(0);
}
rc = osd_fid_lookup(env, osd, lu_object_fid(l), &oid);
if (rc == 0) {
LASSERT(obj->oo_db == NULL);
rc = __osd_obj2dbuf(env, osd->od_objset.os, oid,
&obj->oo_db, osd_obj_tag);
if (rc == 0) {
LASSERT(obj->oo_db);
rc = osd_object_init0(env, obj);
} else {
CERROR("%s: lookup "DFID"/"LPX64" failed: rc = %d\n",
osd->od_svname, PFID(lu_object_fid(l)), oid, rc);
}
} else if (rc == -ENOENT) {
rc = 0;
}
LASSERT(osd_invariant(obj));
RETURN(rc);
}
/*
* Concurrency: no concurrent access is possible that late in object
* life-cycle.
*/
static void osd_object_free(const struct lu_env *env, struct lu_object *l)
{
struct osd_object *obj = osd_obj(l);
LASSERT(osd_invariant(obj));
dt_object_fini(&obj->oo_dt);
OBD_SLAB_FREE_PTR(obj, osd_object_kmem);
}
/*
* Concurrency: no concurrent access is possible that early in object
* life-cycle.
*/
static int osd_object_init(const struct lu_env *env, struct lu_object *l,
const struct lu_object_conf *conf)
{
struct osd_object *obj = osd_obj(l);
struct osd_device *osd = osd_obj2dev(obj);
uint64_t oid;
int rc;
ENTRY;
LASSERT(osd_invariant(obj));
if (fid_is_otable_it(&l->lo_header->loh_fid)) {
obj->oo_dt.do_ops = &osd_obj_otable_it_ops;
l->lo_header->loh_attr |= LOHA_EXISTS;
RETURN(0);
}
if (conf != NULL && conf->loc_flags & LOC_F_NEW)
GOTO(out, rc = 0);
rc = osd_fid_lookup(env, osd, lu_object_fid(l), &oid);
if (rc == 0) {
LASSERT(obj->oo_db == NULL);
rc = __osd_obj2dbuf(env, osd->od_os, oid, &obj->oo_db);
/* EEXIST will be returned if object is being deleted in ZFS */
if (rc == -EEXIST) {
rc = 0;
GOTO(out, rc);
}
if (rc != 0) {
CERROR("%s: lookup "DFID"/%#llx failed: rc = %d\n",
osd->od_svname, PFID(lu_object_fid(l)), oid, rc);
GOTO(out, rc);
}
LASSERT(obj->oo_db);
rc = osd_object_init0(env, obj);
if (rc != 0)
GOTO(out, rc);
rc = osd_check_lma(env, obj);
if (rc != 0)
GOTO(out, rc);
} else if (rc == -ENOENT) {
rc = 0;
}
LASSERT(osd_invariant(obj));
out:
RETURN(rc);
}
static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
{
struct osd_object *obj = osd_obj(l);
if (obj->oo_db != NULL) {
osd_object_sa_fini(obj);
if (obj->oo_sa_xattr) {
nvlist_free(obj->oo_sa_xattr);
obj->oo_sa_xattr = NULL;
}
sa_buf_rele(obj->oo_db, osd_obj_tag);
cfs_list_del(&obj->oo_sa_linkage);
obj->oo_db = NULL;
}
}
/**
* Find the osd object for given fid.
*
* \param fid need to find the osd object having this fid
*
* \retval osd_object on success
* \retval -ve on error
*/
struct osd_object *osd_object_find(const struct lu_env *env,
struct dt_object *dt,
const struct lu_fid *fid)
{
struct lu_device *ludev = dt->do_lu.lo_dev;
struct osd_object *child = NULL;
struct lu_object *luch;
struct lu_object *lo;
/*
* at this point topdev might not exist yet
* (i.e. MGS is preparing profiles). so we can
* not rely on topdev and instead lookup with
* our device passed as topdev. this can't work
* if the object isn't cached yet (as osd doesn't
* allocate lu_header). IOW, the object must be
* in the cache, otherwise lu_object_alloc() crashes
* -bzzz
*/
luch = lu_object_find_at(env, ludev, fid, NULL);
if (IS_ERR(luch))
return (void *)luch;
if (lu_object_exists(luch)) {
lo = lu_object_locate(luch->lo_header, ludev->ld_type);
if (lo != NULL)
child = osd_obj(lo);
else
LU_OBJECT_DEBUG(D_ERROR, env, luch,
"%s: object can't be located "DFID"\n",
osd_dev(ludev)->od_svname, PFID(fid));
if (child == NULL) {
lu_object_put(env, luch);
CERROR("%s: Unable to get osd_object "DFID"\n",
osd_dev(ludev)->od_svname, PFID(fid));
child = ERR_PTR(-ENOENT);
}
} else {
LU_OBJECT_DEBUG(D_ERROR, env, luch,
"%s: lu_object does not exists "DFID"\n",
osd_dev(ludev)->od_svname, PFID(fid));
lu_object_put(env, luch);
child = ERR_PTR(-ENOENT);
}
return child;
}
