/*
* 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 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);
}
/*
* Concurrency: @dt is write locked.
*/
static int osd_object_ref_del(const struct lu_env *env,
struct dt_object *dt,
struct thandle *handle)
{
struct osd_object *obj = osd_dt_obj(dt);
struct osd_thandle *oh;
struct osd_device *osd = osd_obj2dev(obj);
udmu_objset_t *uos = &osd->od_objset;
uint64_t nlink;
int rc;
ENTRY;
LASSERT(osd_invariant(obj));
LASSERT(dt_object_exists(dt));
LASSERT(obj->oo_sa_hdl != NULL);
oh = container_of0(handle, struct osd_thandle, ot_super);
LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
write_lock(&obj->oo_attr_lock);
nlink = --obj->oo_attr.la_nlink;
write_unlock(&obj->oo_attr_lock);
rc = osd_object_sa_update(obj, SA_ZPL_LINKS(uos), &nlink, 8, oh);
return rc;
}
static int osd_oi_iam_delete(struct osd_thread_info *oti, struct osd_oi *oi,
const struct dt_key *key, handle_t *th)
{
struct iam_container *bag;
struct iam_path_descr *ipd;
int rc;
ENTRY;
LASSERT(oi);
LASSERT(oi->oi_inode);
ll_vfs_dq_init(oi->oi_inode);
bag = &oi->oi_dir.od_container;
ipd = osd_idx_ipd_get(oti->oti_env, bag);
if (unlikely(ipd == NULL))
RETURN(-ENOMEM);
LASSERT(th != NULL);
LASSERT(th->h_transaction != NULL);
rc = iam_delete(th, bag, (const struct iam_key *)key, ipd);
osd_ipd_put(oti->oti_env, bag, ipd);
LINVRNT(osd_invariant(obj));
RETURN(rc);
}
static int osd_oi_iam_lookup(struct osd_thread_info *oti,
struct osd_oi *oi, struct dt_rec *rec,
const struct dt_key *key)
{
struct iam_container *bag;
struct iam_iterator *it = &oti->oti_idx_it;
struct iam_path_descr *ipd;
int rc;
ENTRY;
LASSERT(oi);
LASSERT(oi->oi_inode);
bag = &oi->oi_dir.od_container;
ipd = osd_idx_ipd_get(oti->oti_env, bag);
if (IS_ERR(ipd))
RETURN(-ENOMEM);
/* got ipd now we can start iterator. */
iam_it_init(it, bag, 0, ipd);
rc = iam_it_get(it, (struct iam_key *)key);
if (rc > 0)
iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)rec);
iam_it_put(it);
iam_it_fini(it);
osd_ipd_put(oti->oti_env, bag, ipd);
LINVRNT(osd_invariant(obj));
RETURN(rc);
}
static int osd_attr_get(const struct lu_env *env,
struct dt_object *dt,
struct lu_attr *attr,
struct lustre_capa *capa)
{
struct osd_object *obj = osd_dt_obj(dt);
uint64_t blocks;
uint32_t blksize;
LASSERT(dt_object_exists(dt));
LASSERT(osd_invariant(obj));
LASSERT(obj->oo_db);
read_lock(&obj->oo_attr_lock);
*attr = obj->oo_attr;
read_unlock(&obj->oo_attr_lock);
/* with ZFS_DEBUG zrl_add_debug() called by DB_DNODE_ENTER()
* from within sa_object_size() can block on a mutex, so
* we can't call sa_object_size() holding rwlock */
sa_object_size(obj->oo_sa_hdl, &blksize, &blocks);
/* we do not control size of indices, so always calculate
* it from number of blocks reported by DMU */
if (S_ISDIR(attr->la_mode))
attr->la_size = 512 * blocks;
/* Block size may be not set; suggest maximal I/O transfers. */
if (blksize == 0)
blksize = 1ULL << SPA_MAXBLOCKSHIFT;
attr->la_blksize = blksize;
attr->la_blocks = blocks;
attr->la_valid |= LA_BLOCKS | LA_BLKSIZE;
return 0;
}
int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
struct lu_buf *buf, const char *name)
{
struct osd_object *obj = osd_dt_obj(dt);
int rc, size = 0;
ENTRY;
LASSERT(obj->oo_db != NULL);
LASSERT(osd_invariant(obj));
if (!osd_obj2dev(obj)->od_posix_acl &&
(strcmp(name, POSIX_ACL_XATTR_ACCESS) == 0 ||
strcmp(name, POSIX_ACL_XATTR_DEFAULT) == 0))
RETURN(-EOPNOTSUPP);
down_read(&obj->oo_guard);
rc = __osd_xattr_get(env, obj, buf, name, &size);
up_read(&obj->oo_guard);
if (rc == -ENOENT)
rc = -ENODATA;
else if (rc == 0)
rc = size;
RETURN(rc);
}
/*
* Concurrency: @dt is write locked.
*/
static int osd_object_ref_del(const struct lu_env *env,
struct dt_object *dt,
struct thandle *handle)
{
struct osd_object *obj = osd_dt_obj(dt);
struct osd_thandle *oh;
struct osd_device *osd = osd_obj2dev(obj);
uint64_t nlink;
int rc;
ENTRY;
down_read(&obj->oo_guard);
if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
GOTO(out, rc = -ENOENT);
LASSERT(osd_invariant(obj));
LASSERT(obj->oo_sa_hdl != NULL);
oh = container_of0(handle, struct osd_thandle, ot_super);
LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
write_lock(&obj->oo_attr_lock);
nlink = --obj->oo_attr.la_nlink;
write_unlock(&obj->oo_attr_lock);
rc = osd_object_sa_update(obj, SA_ZPL_LINKS(osd), &nlink, 8, oh);
out:
up_read(&obj->oo_guard);
RETURN(rc);
}
int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
const struct lu_buf *buf, const char *name, int fl,
struct thandle *handle)
{
struct osd_object *obj = osd_dt_obj(dt);
struct osd_thandle *oh;
int rc = 0;
ENTRY;
LASSERT(handle != NULL);
LASSERT(osd_invariant(obj));
if (!osd_obj2dev(obj)->od_posix_acl &&
(strcmp(name, POSIX_ACL_XATTR_ACCESS) == 0 ||
strcmp(name, POSIX_ACL_XATTR_DEFAULT) == 0))
RETURN(-EOPNOTSUPP);
if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LINKEA_OVERFLOW) &&
strcmp(name, XATTR_NAME_LINK) == 0)
RETURN(-ENOSPC);
oh = container_of0(handle, struct osd_thandle, ot_super);
down_write(&obj->oo_guard);
CDEBUG(D_INODE, "Setting xattr %s with size %d\n",
name, (int)buf->lb_len);
rc = osd_xattr_set_internal(env, obj, buf, name, fl, oh);
up_write(&obj->oo_guard);
RETURN(rc);
}
static int osd_index_insert(const struct lu_env *env, struct dt_object *dt,
const struct dt_rec *rec, const struct dt_key *key,
struct thandle *th, struct lustre_capa *capa,
int ignore_quota)
{
struct osd_object *obj = osd_dt_obj(dt);
struct osd_device *osd = osd_obj2dev(obj);
struct osd_thandle *oh;
__u64 *k = osd_oti_get(env)->oti_key64;
int rc;
ENTRY;
LASSERT(obj->oo_db);
LASSERT(dt_object_exists(dt));
LASSERT(osd_invariant(obj));
LASSERT(th != NULL);
oh = container_of0(th, struct osd_thandle, ot_super);
rc = osd_prepare_key_uint64(obj, k, key);
/* Insert (key,oid) into ZAP */
rc = -zap_add_uint64(osd->od_objset.os, obj->oo_db->db_object,
k, rc, obj->oo_recusize, obj->oo_recsize,
(void *)rec, oh->ot_tx);
RETURN(rc);
}
int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
const char *name, struct thandle *handle)
{
struct osd_object *obj = osd_dt_obj(dt);
struct osd_thandle *oh;
int rc;
ENTRY;
LASSERT(handle != NULL);
LASSERT(obj->oo_db != NULL);
LASSERT(osd_invariant(obj));
LASSERT(dt_object_exists(dt));
oh = container_of0(handle, struct osd_thandle, ot_super);
LASSERT(oh->ot_tx != NULL);
if (!osd_obj2dev(obj)->od_posix_acl &&
(strcmp(name, POSIX_ACL_XATTR_ACCESS) == 0 ||
strcmp(name, POSIX_ACL_XATTR_DEFAULT) == 0))
RETURN(-EOPNOTSUPP);
down_write(&obj->oo_guard);
rc = __osd_xattr_del(env, obj, name, oh);
up_write(&obj->oo_guard);
RETURN(rc);
}
static int osd_oi_iam_refresh(struct osd_thread_info *oti, struct osd_oi *oi,
const struct dt_rec *rec, const struct dt_key *key,
struct thandle *th, bool insert)
{
struct iam_container *bag;
struct iam_path_descr *ipd;
struct osd_thandle *oh;
int rc;
ENTRY;
LASSERT(oi);
LASSERT(oi->oi_inode);
ll_vfs_dq_init(oi->oi_inode);
bag = &oi->oi_dir.od_container;
ipd = osd_idx_ipd_get(oti->oti_env, bag);
if (unlikely(ipd == NULL))
RETURN(-ENOMEM);
oh = container_of0(th, struct osd_thandle, ot_super);
LASSERT(oh->ot_handle != NULL);
LASSERT(oh->ot_handle->h_transaction != NULL);
if (insert)
rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
(const struct iam_rec *)rec, ipd);
else
rc = iam_update(oh->ot_handle, bag, (const struct iam_key *)key,
(const struct iam_rec *)rec, ipd);
osd_ipd_put(oti->oti_env, bag, ipd);
LINVRNT(osd_invariant(obj));
RETURN(rc);
}
int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
const struct lu_buf *buf, const char *name, int fl,
struct thandle *handle, struct lustre_capa *capa)
{
struct osd_object *obj = osd_dt_obj(dt);
struct osd_thandle *oh;
int rc = 0;
ENTRY;
LASSERT(handle != NULL);
LASSERT(osd_invariant(obj));
LASSERT(dt_object_exists(dt));
LASSERT(obj->oo_db);
if (!osd_obj2dev(obj)->od_posix_acl &&
(strcmp(name, POSIX_ACL_XATTR_ACCESS) == 0 ||
strcmp(name, POSIX_ACL_XATTR_DEFAULT) == 0))
RETURN(-EOPNOTSUPP);
oh = container_of0(handle, struct osd_thandle, ot_super);
down(&obj->oo_guard);
CDEBUG(D_INODE, "Setting xattr %s with size %d\n",
name, (int)buf->lb_len);
rc = osd_xattr_set_internal(env, obj, buf, name, fl, oh, capa);
up(&obj->oo_guard);
RETURN(rc);
}
/*
* Concurrency: @dt is write locked.
*/
static int osd_object_ref_add(const struct lu_env *env,
struct dt_object *dt,
struct thandle *handle)
{
struct osd_object *obj = osd_dt_obj(dt);
struct osd_thandle *oh;
struct osd_device *osd = osd_obj2dev(obj);
uint64_t nlink;
int rc;
ENTRY;
LASSERT(osd_invariant(obj));
LASSERT(dt_object_exists(dt));
LASSERT(obj->oo_sa_hdl != NULL);
oh = container_of0(handle, struct osd_thandle, ot_super);
write_lock(&obj->oo_attr_lock);
nlink = ++obj->oo_attr.la_nlink;
write_unlock(&obj->oo_attr_lock);
rc = osd_object_sa_update(obj, SA_ZPL_LINKS(osd), &nlink, 8, oh);
return rc;
}
int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
struct lu_buf *lb, struct lustre_capa *capa)
{
struct osd_thread_info *oti = osd_oti_get(env);
struct osd_object *obj = osd_dt_obj(dt);
struct osd_device *osd = osd_obj2dev(obj);
udmu_objset_t *uos = &osd->od_objset;
zap_cursor_t *zc;
int rc, counted = 0, remain = lb->lb_len;
ENTRY;
LASSERT(obj->oo_db != NULL);
LASSERT(osd_invariant(obj));
LASSERT(dt_object_exists(dt));
down(&obj->oo_guard);
rc = osd_sa_xattr_list(env, obj, lb);
if (rc < 0)
GOTO(out, rc);
counted = rc;
remain -= counted;
/* continue with dnode xattr if any */
if (obj->oo_xattr == ZFS_NO_OBJECT)
GOTO(out, rc = counted);
rc = -udmu_zap_cursor_init(&zc, uos, obj->oo_xattr, 0);
if (rc)
GOTO(out, rc);
while ((rc = -udmu_zap_cursor_retrieve_key(env, zc, oti->oti_key,
MAXNAMELEN)) == 0) {
rc = strlen(oti->oti_key);
if (lb->lb_buf != NULL) {
if (rc + 1 > remain)
RETURN(-ERANGE);
memcpy(lb->lb_buf, oti->oti_key, rc);
lb->lb_buf += rc;
*((char *)lb->lb_buf) = '\0';
lb->lb_buf++;
remain -= rc + 1;
}
counted += rc + 1;
zap_cursor_advance(zc);
}
if (rc < 0)
GOTO(out_fini, rc);
rc = counted;
out_fini:
udmu_zap_cursor_fini(zc);
out:
up(&obj->oo_guard);
RETURN(rc);
}
static void osd_object_write_unlock(const struct lu_env *env,
struct dt_object *dt)
{
struct osd_object *obj = osd_dt_obj(dt);
LASSERT(osd_invariant(obj));
up_write(&obj->oo_sem);
}
/*
* 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);
}
static void osd_object_write_lock(const struct lu_env *env,
struct dt_object *dt, unsigned role)
{
struct osd_object *obj = osd_dt_obj(dt);
LASSERT(osd_invariant(obj));
down_write(&obj->oo_sem);
}
static struct obd_capa *osd_capa_get(const struct lu_env *env,
struct dt_object *dt,
struct lustre_capa *old,
__u64 opc)
{
struct osd_thread_info *info = osd_oti_get(env);
const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
struct osd_object *obj = osd_dt_obj(dt);
struct osd_device *dev = osd_obj2dev(obj);
struct lustre_capa_key *key = &info->oti_capa_key;
struct lustre_capa *capa = &info->oti_capa;
struct obd_capa *oc;
int rc;
ENTRY;
if (!dev->od_fl_capa)
RETURN(ERR_PTR(-ENOENT));
LASSERT(dt_object_exists(dt));
LASSERT(osd_invariant(obj));
/* renewal sanity check */
if (old && osd_object_auth(env, dt, old, opc))
RETURN(ERR_PTR(-EACCES));
capa->lc_fid = *fid;
capa->lc_opc = opc;
capa->lc_uid = 0;
capa->lc_flags = dev->od_capa_alg << 24;
capa->lc_timeout = dev->od_capa_timeout;
capa->lc_expiry = 0;
oc = capa_lookup(dev->od_capa_hash, capa, 1);
if (oc) {
LASSERT(!capa_is_expired(oc));
RETURN(oc);
}
spin_lock(&capa_lock);
*key = dev->od_capa_keys[1];
spin_unlock(&capa_lock);
capa->lc_keyid = key->lk_keyid;
capa->lc_expiry = cfs_time_current_sec() + dev->od_capa_timeout;
rc = capa_hmac(capa->lc_hmac, capa, key->lk_key);
if (rc) {
DEBUG_CAPA(D_ERROR, capa, "HMAC failed: %d for", rc);
LBUG();
RETURN(ERR_PTR(rc));
}
oc = capa_add(dev->od_capa_hash, capa);
RETURN(oc);
}
/**
* Inserts (key, value) pair in \a directory object.
*
* \param dt osd index object
* \param key key for index
* \param rec record reference
* \param th transaction handler
* \param capa capability descriptor
* \param ignore_quota update should not affect quota
*
* \retval 0 success
* \retval -ve failure
*/
static int osd_dir_insert(const struct lu_env *env, struct dt_object *dt,
const struct dt_rec *rec, const struct dt_key *key,
struct thandle *th, struct lustre_capa *capa,
int ignore_quota)
{
struct osd_thread_info *oti = osd_oti_get(env);
struct osd_object *parent = osd_dt_obj(dt);
struct osd_device *osd = osd_obj2dev(parent);
struct lu_fid *fid = (struct lu_fid *)rec;
struct osd_thandle *oh;
struct osd_object *child;
__u32 attr;
int rc;
ENTRY;
LASSERT(parent->oo_db);
LASSERT(udmu_object_is_zap(parent->oo_db));
LASSERT(dt_object_exists(dt));
LASSERT(osd_invariant(parent));
/*
* zfs_readdir() generates ./.. on fly, but
* we want own entries (.. at least) with a fid
*/
#if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 3, 61, 0)
#warning "fix '.' and '..' handling"
#endif
LASSERT(th != NULL);
oh = container_of0(th, struct osd_thandle, ot_super);
child = osd_object_find(env, dt, fid);
if (IS_ERR(child))
RETURN(PTR_ERR(child));
LASSERT(child->oo_db);
CLASSERT(sizeof(oti->oti_zde.lzd_reg) == 8);
CLASSERT(sizeof(oti->oti_zde) % 8 == 0);
attr = child->oo_dt.do_lu.lo_header ->loh_attr;
oti->oti_zde.lzd_reg.zde_type = IFTODT(attr & S_IFMT);
oti->oti_zde.lzd_reg.zde_dnode = child->oo_db->db_object;
oti->oti_zde.lzd_fid = *fid;
/* Insert (key,oid) into ZAP */
rc = -zap_add(osd->od_objset.os, parent->oo_db->db_object,
(char *)key, 8, sizeof(oti->oti_zde) / 8,
(void *)&oti->oti_zde, oh->ot_tx);
osd_object_put(env, child);
RETURN(rc);
}
static int osd_object_write_locked(const struct lu_env *env,
struct dt_object *dt)
{
struct osd_object *obj = osd_dt_obj(dt);
int rc = 1;
LASSERT(osd_invariant(obj));
if (down_write_trylock(&obj->oo_sem)) {
rc = 0;
up_write(&obj->oo_sem);
}
return rc;
}
static int osd_attr_get(const struct lu_env *env,
struct dt_object *dt,
struct lu_attr *attr)
{
struct osd_object *obj = osd_dt_obj(dt);
uint64_t blocks;
uint32_t blksize;
int rc = 0;
down_read(&obj->oo_guard);
if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
GOTO(out, rc = -ENOENT);
LASSERT(osd_invariant(obj));
LASSERT(obj->oo_db);
read_lock(&obj->oo_attr_lock);
*attr = obj->oo_attr;
if (obj->oo_lma_flags & LUSTRE_ORPHAN_FL)
attr->la_flags |= LUSTRE_ORPHAN_FL;
read_unlock(&obj->oo_attr_lock);
/* with ZFS_DEBUG zrl_add_debug() called by DB_DNODE_ENTER()
* from within sa_object_size() can block on a mutex, so
* we can't call sa_object_size() holding rwlock */
sa_object_size(obj->oo_sa_hdl, &blksize, &blocks);
/* we do not control size of indices, so always calculate
* it from number of blocks reported by DMU */
if (S_ISDIR(attr->la_mode))
attr->la_size = 512 * blocks;
/* Block size may be not set; suggest maximal I/O transfers. */
if (blksize == 0)
blksize = osd_spa_maxblocksize(
dmu_objset_spa(osd_obj2dev(obj)->od_os));
attr->la_blksize = blksize;
attr->la_blocks = blocks;
attr->la_valid |= LA_BLOCKS | LA_BLKSIZE;
out:
up_read(&obj->oo_guard);
return rc;
}
static int osd_declare_index_delete(const struct lu_env *env,
struct dt_object *dt,
const struct dt_key *key,
struct thandle *th)
{
struct osd_object *obj = osd_dt_obj(dt);
struct osd_thandle *oh;
ENTRY;
LASSERT(dt_object_exists(dt));
LASSERT(osd_invariant(obj));
LASSERT(th != NULL);
LASSERT(obj->oo_db);
oh = container_of0(th, struct osd_thandle, ot_super);
dmu_tx_hold_zap(oh->ot_tx, obj->oo_db->db_object, TRUE, NULL);
RETURN(0);
}
int osd_declare_xattr_del(const struct lu_env *env, struct dt_object *dt,
const char *name, struct thandle *handle)
{
struct osd_object *obj = osd_dt_obj(dt);
struct osd_thandle *oh;
ENTRY;
LASSERT(handle != NULL);
LASSERT(osd_invariant(obj));
oh = container_of0(handle, struct osd_thandle, ot_super);
LASSERT(oh->ot_tx != NULL);
LASSERT(obj->oo_db != NULL);
down_read(&obj->oo_guard);
if (likely(dt_object_exists(&obj->oo_dt) && !obj->oo_destroyed))
__osd_xattr_declare_del(env, obj, name, oh);
up_read(&obj->oo_guard);
RETURN(0);
}
int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
const char *name, struct thandle *handle,
struct lustre_capa *capa)
{
struct osd_object *obj = osd_dt_obj(dt);
struct osd_thandle *oh;
int rc;
ENTRY;
LASSERT(handle != NULL);
LASSERT(obj->oo_db != NULL);
LASSERT(osd_invariant(obj));
LASSERT(dt_object_exists(dt));
oh = container_of0(handle, struct osd_thandle, ot_super);
LASSERT(oh->ot_tx != NULL);
down(&obj->oo_guard);
rc = __osd_xattr_del(env, obj, name, oh);
up(&obj->oo_guard);
RETURN(rc);
}
int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
struct lu_buf *buf, const char *name,
struct lustre_capa *capa)
{
struct osd_object *obj = osd_dt_obj(dt);
int rc, size = 0;
ENTRY;
LASSERT(obj->oo_db != NULL);
LASSERT(osd_invariant(obj));
LASSERT(dt_object_exists(dt));
down(&obj->oo_guard);
rc = __osd_xattr_get(env, obj, buf, name, &size);
up(&obj->oo_guard);
if (rc == -ENOENT)
rc = -ENODATA;
else if (rc == 0)
rc = size;
RETURN(rc);
}
int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
const struct lu_buf *buf, const char *name, int fl,
struct thandle *handle, struct lustre_capa *capa)
{
struct osd_object *obj = osd_dt_obj(dt);
struct osd_thandle *oh;
int rc = 0;
ENTRY;
LASSERT(handle != NULL);
LASSERT(osd_invariant(obj));
LASSERT(dt_object_exists(dt));
LASSERT(obj->oo_db);
oh = container_of0(handle, struct osd_thandle, ot_super);
down(&obj->oo_guard);
CDEBUG(D_INODE, "Setting xattr %s with size %d\n",
name, (int)buf->lb_len);
rc = osd_xattr_set_internal(env, obj, buf, name, fl, oh, capa);
up(&obj->oo_guard);
RETURN(rc);
}
int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
const struct lu_buf *lb)
{
struct osd_object *obj = osd_dt_obj(dt);
struct osd_device *osd = osd_obj2dev(obj);
zap_attribute_t *za = &osd_oti_get(env)->oti_za;
zap_cursor_t *zc;
int rc, counted;
ENTRY;
LASSERT(obj->oo_db != NULL);
LASSERT(osd_invariant(obj));
LASSERT(dt_object_exists(dt));
down_read(&obj->oo_guard);
rc = osd_sa_xattr_list(env, obj, lb);
if (rc < 0)
GOTO(out, rc);
counted = rc;
/* continue with dnode xattr if any */
if (obj->oo_xattr == ZFS_NO_OBJECT)
GOTO(out, rc = counted);
rc = osd_zap_cursor_init(&zc, osd->od_os, obj->oo_xattr, 0);
if (rc)
GOTO(out, rc);
while ((rc = -zap_cursor_retrieve(zc, za)) == 0) {
if (!osd_obj2dev(obj)->od_posix_acl &&
(strcmp(za->za_name, POSIX_ACL_XATTR_ACCESS) == 0 ||
strcmp(za->za_name, POSIX_ACL_XATTR_DEFAULT) == 0)) {
zap_cursor_advance(zc);
continue;
}
rc = strlen(za->za_name);
if (lb->lb_buf != NULL) {
if (counted + rc + 1 > lb->lb_len)
GOTO(out_fini, rc = -ERANGE);
memcpy(lb->lb_buf + counted, za->za_name, rc + 1);
}
counted += rc + 1;
zap_cursor_advance(zc);
}
if (rc == -ENOENT) /* no more kes in the index */
rc = 0;
else if (unlikely(rc < 0))
GOTO(out_fini, rc);
rc = counted;
out_fini:
osd_zap_cursor_fini(zc);
out:
up_read(&obj->oo_guard);
RETURN(rc);
}
/*
* Set the attributes of an object
*
* The transaction passed to this routine must have
* dmu_tx_hold_bonus(tx, oid) called and then assigned
* to a transaction group.
*/
static int osd_attr_set(const struct lu_env *env, struct dt_object *dt,
const struct lu_attr *la, struct thandle *handle,
struct lustre_capa *capa)
{
struct osd_object *obj = osd_dt_obj(dt);
struct osd_device *osd = osd_obj2dev(obj);
udmu_objset_t *uos = &osd->od_objset;
struct osd_thandle *oh;
struct osa_attr *osa = &osd_oti_get(env)->oti_osa;
sa_bulk_attr_t *bulk;
int cnt;
int rc = 0;
ENTRY;
LASSERT(handle != NULL);
LASSERT(dt_object_exists(dt));
LASSERT(osd_invariant(obj));
LASSERT(obj->oo_sa_hdl);
oh = container_of0(handle, struct osd_thandle, ot_super);
/* Assert that the transaction has been assigned to a
transaction group. */
LASSERT(oh->ot_tx->tx_txg != 0);
if (la->la_valid == 0)
RETURN(0);
OBD_ALLOC(bulk, sizeof(sa_bulk_attr_t) * 10);
if (bulk == NULL)
RETURN(-ENOMEM);
/* do both accounting updates outside oo_attr_lock below */
if ((la->la_valid & LA_UID) && (la->la_uid != obj->oo_attr.la_uid)) {
/* Update user accounting. Failure isn't fatal, but we still
* log an error message */
rc = -zap_increment_int(osd->od_objset.os, osd->od_iusr_oid,
la->la_uid, 1, oh->ot_tx);
if (rc)
CERROR("%s: failed to update accounting ZAP for user "
"%d (%d)\n", osd->od_svname, la->la_uid, rc);
rc = -zap_increment_int(osd->od_objset.os, osd->od_iusr_oid,
obj->oo_attr.la_uid, -1, oh->ot_tx);
if (rc)
CERROR("%s: failed to update accounting ZAP for user "
"%d (%d)\n", osd->od_svname,
obj->oo_attr.la_uid, rc);
}
if ((la->la_valid & LA_GID) && (la->la_gid != obj->oo_attr.la_gid)) {
/* Update group accounting. Failure isn't fatal, but we still
* log an error message */
rc = -zap_increment_int(osd->od_objset.os, osd->od_igrp_oid,
la->la_gid, 1, oh->ot_tx);
if (rc)
CERROR("%s: failed to update accounting ZAP for user "
"%d (%d)\n", osd->od_svname, la->la_gid, rc);
rc = -zap_increment_int(osd->od_objset.os, osd->od_igrp_oid,
obj->oo_attr.la_gid, -1, oh->ot_tx);
if (rc)
CERROR("%s: failed to update accounting ZAP for user "
"%d (%d)\n", osd->od_svname,
obj->oo_attr.la_gid, rc);
}
write_lock(&obj->oo_attr_lock);
cnt = 0;
if (la->la_valid & LA_ATIME) {
osa->atime[0] = obj->oo_attr.la_atime = la->la_atime;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(uos), NULL,
osa->atime, 16);
}
if (la->la_valid & LA_MTIME) {
osa->mtime[0] = obj->oo_attr.la_mtime = la->la_mtime;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(uos), NULL,
osa->mtime, 16);
}
if (la->la_valid & LA_CTIME) {
osa->ctime[0] = obj->oo_attr.la_ctime = la->la_ctime;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(uos), NULL,
osa->ctime, 16);
}
if (la->la_valid & LA_MODE) {
/* mode is stored along with type, so read it first */
obj->oo_attr.la_mode = (obj->oo_attr.la_mode & S_IFMT) |
(la->la_mode & ~S_IFMT);
osa->mode = obj->oo_attr.la_mode;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(uos), NULL,
&osa->mode, 8);
}
if (la->la_valid & LA_SIZE) {
osa->size = obj->oo_attr.la_size = la->la_size;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(uos), NULL,
&osa->size, 8);
}
if (la->la_valid & LA_NLINK) {
osa->nlink = obj->oo_attr.la_nlink = la->la_nlink;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(uos), NULL,
&osa->nlink, 8);
}
if (la->la_valid & LA_RDEV) {
osa->rdev = obj->oo_attr.la_rdev = la->la_rdev;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_RDEV(uos), NULL,
&osa->rdev, 8);
}
if (la->la_valid & LA_FLAGS) {
osa->flags = obj->oo_attr.la_flags = la->la_flags;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(uos), NULL,
&osa->flags, 8);
}
if (la->la_valid & LA_UID) {
osa->uid = obj->oo_attr.la_uid = la->la_uid;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(uos), NULL,
&osa->uid, 8);
}
if (la->la_valid & LA_GID) {
osa->gid = obj->oo_attr.la_gid = la->la_gid;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(uos), NULL,
&osa->gid, 8);
}
obj->oo_attr.la_valid |= la->la_valid;
write_unlock(&obj->oo_attr_lock);
rc = osd_object_sa_bulk_update(obj, bulk, cnt, oh);
OBD_FREE(bulk, sizeof(sa_bulk_attr_t) * 10);
RETURN(rc);
}
static int osd_declare_attr_set(const struct lu_env *env,
struct dt_object *dt,
const struct lu_attr *attr,
struct thandle *handle)
{
struct osd_thread_info *info = osd_oti_get(env);
char *buf = osd_oti_get(env)->oti_str;
struct osd_object *obj = osd_dt_obj(dt);
struct osd_device *osd = osd_obj2dev(obj);
struct osd_thandle *oh;
uint64_t bspace;
uint32_t blksize;
int rc;
ENTRY;
if (!dt_object_exists(dt)) {
/* XXX: sanity check that object creation is declared */
RETURN(0);
}
LASSERT(handle != NULL);
LASSERT(osd_invariant(obj));
oh = container_of0(handle, struct osd_thandle, ot_super);
LASSERT(obj->oo_sa_hdl != NULL);
dmu_tx_hold_sa(oh->ot_tx, obj->oo_sa_hdl, 0);
sa_object_size(obj->oo_sa_hdl, &blksize, &bspace);
bspace = toqb(bspace * blksize);
if (attr && attr->la_valid & LA_UID) {
/* account for user inode tracking ZAP update */
dmu_tx_hold_bonus(oh->ot_tx, osd->od_iusr_oid);
dmu_tx_hold_zap(oh->ot_tx, osd->od_iusr_oid, TRUE, buf);
/* quota enforcement for user */
if (attr->la_uid != obj->oo_attr.la_uid) {
rc = qsd_transfer(env, osd->od_quota_slave,
&oh->ot_quota_trans, USRQUOTA,
obj->oo_attr.la_uid, attr->la_uid,
bspace, &info->oti_qi);
if (rc)
RETURN(rc);
}
}
if (attr && attr->la_valid & LA_GID) {
/* account for user inode tracking ZAP update */
dmu_tx_hold_bonus(oh->ot_tx, osd->od_igrp_oid);
dmu_tx_hold_zap(oh->ot_tx, osd->od_igrp_oid, TRUE, buf);
/* quota enforcement for group */
if (attr->la_gid != obj->oo_attr.la_gid) {
rc = qsd_transfer(env, osd->od_quota_slave,
&oh->ot_quota_trans, GRPQUOTA,
obj->oo_attr.la_gid, attr->la_gid,
bspace, &info->oti_qi);
if (rc)
RETURN(rc);
}
}
RETURN(0);
}
