/*
* The transaction passed to this routine must have
* dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, ...) called and then assigned
* to a transaction group.
*
* Using ZAP_FLAG_HASH64 will force the ZAP to always be a FAT ZAP.
* This is fine for directories today, because storing the FID in the dirent
* will also require a FAT ZAP. If there is a new type of micro ZAP created
* then we might need to re-evaluate the use of this flag and instead do
* a conversion from the different internal ZAP hash formats being used. */
int __osd_zap_create(const struct lu_env *env, udmu_objset_t *uos,
dmu_buf_t **zap_dbp, dmu_tx_t *tx,
struct lu_attr *la, void *tag, zap_flags_t flags)
{
uint64_t oid;
int rc;
LASSERT(tag);
spin_lock(&uos->lock);
uos->objects++;
spin_unlock(&uos->lock);
/* Assert that the transaction has been assigned to a
transaction group. */
LASSERT(tx->tx_txg != 0);
oid = zap_create_flags(uos->os, 0, flags | ZAP_FLAG_HASH64,
DMU_OT_DIRECTORY_CONTENTS, 12, 12,
DMU_OT_SA, DN_MAX_BONUSLEN, tx);
rc = -sa_buf_hold(uos->os, oid, tag, zap_dbp);
if (rc)
return rc;
LASSERT(la->la_valid & LA_MODE);
la->la_size = 2;
la->la_nlink = 1;
return __osd_attr_init(env, uos, oid, tx, la);
}
/*
* The transaction passed to this routine must have
* dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, ...) called and then assigned
* to a transaction group.
*
* Using ZAP_FLAG_HASH64 will force the ZAP to always be a FAT ZAP.
* This is fine for directories today, because storing the FID in the dirent
* will also require a FAT ZAP. If there is a new type of micro ZAP created
* then we might need to re-evaluate the use of this flag and instead do
* a conversion from the different internal ZAP hash formats being used. */
int __osd_zap_create(const struct lu_env *env, struct osd_device *osd,
dmu_buf_t **zap_dbp, dmu_tx_t *tx,
struct lu_attr *la, uint64_t parent, zap_flags_t flags)
{
uint64_t oid;
int rc;
/* Assert that the transaction has been assigned to a
transaction group. */
LASSERT(tx->tx_txg != 0);
oid = zap_create_flags(osd->od_os, 0, flags | ZAP_FLAG_HASH64,
DMU_OT_DIRECTORY_CONTENTS,
14, /* == ZFS fzap_default_block_shift */
DN_MAX_INDBLKSHIFT, /* indirect block shift */
DMU_OT_SA, DN_MAX_BONUSLEN, tx);
rc = -sa_buf_hold(osd->od_os, oid, osd_obj_tag, zap_dbp);
if (rc)
return rc;
LASSERT(la->la_valid & LA_MODE);
la->la_size = 2;
la->la_nlink = 1;
return __osd_attr_init(env, osd, oid, tx, la, parent);
}
static void
dsl_keychain_create_obj(dsl_dir_t *dd, dmu_tx_t *tx)
{
objset_t *mos = dd->dd_pool->dp_meta_objset;
dmu_buf_will_dirty(dd->dd_dbuf, tx);
dsl_dir_phys(dd)->dd_keychain_obj = zap_create_flags(mos,
0, ZAP_FLAG_HASH64 | ZAP_FLAG_UINT64_KEY,
DMU_OT_DSL_KEYCHAIN, SPA_MINBLOCKSHIFT, SPA_MINBLOCKSHIFT,
DMU_OT_NONE, 0, tx);
}
static int
ddt_zap_create(objset_t *os, uint64_t *objectp, dmu_tx_t *tx, boolean_t prehash)
{
zap_flags_t flags = ZAP_FLAG_HASH64 | ZAP_FLAG_UINT64_KEY;
if (prehash)
flags |= ZAP_FLAG_PRE_HASHED_KEY;
*objectp = zap_create_flags(os, 0, flags, DMU_OT_DDT_ZAP,
ddt_zap_leaf_blockshift, ddt_zap_indirect_blockshift,
DMU_OT_NONE, 0, tx);
return (*objectp == 0 ? ENOTSUP : 0);
}
