diff options
author | Alexander Motin <[email protected]> | 2023-12-01 18:23:20 -0500 |
---|---|---|
committer | Brian Behlendorf <[email protected]> | 2024-01-08 16:11:39 -0800 |
commit | 3b8f2273622318461836dc27fa65e50126caff78 (patch) | |
tree | 25158375f85b18b47c30bfc5a43d99fb23a16318 /module | |
parent | e48195c816edbea0efeb41436811af353ae26a35 (diff) |
ZIL: Remove TX_CLONE_RANGE replay for ZVOLs.
zil_claim_clone_range() takes references on cloned blocks before ZIL
replay. Later zil_free_clone_range() drops them after replay or on
dataset destroy. The total balance is neutral. It means we do not
need to do anything (drop the references) for not implemented yet
TX_CLONE_RANGE replay for ZVOLs.
This is a logical follow up to #15603.
Reviewed-by: Kay Pedersen <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: Alexander Motin <[email protected]>
Sponsored by: iXsystems, Inc.
Closes #15612
Diffstat (limited to 'module')
-rw-r--r-- | module/zfs/zvol.c | 60 |
1 files changed, 1 insertions, 59 deletions
diff --git a/module/zfs/zvol.c b/module/zfs/zvol.c index 91b2d9fcb..20ea71f23 100644 --- a/module/zfs/zvol.c +++ b/module/zfs/zvol.c @@ -486,64 +486,6 @@ zvol_replay_write(void *arg1, void *arg2, boolean_t byteswap) return (error); } -/* - * Replay a TX_CLONE_RANGE ZIL transaction that didn't get committed - * after a system failure. - * - * TODO: For now we drop block cloning transations for ZVOLs as they are - * unsupported, but we still need to inform BRT about that as we - * claimed them during pool import. - * This situation can occur when we try to import a pool from a ZFS - * version supporting block cloning for ZVOLs into a system that - * has this ZFS version, that doesn't support block cloning for ZVOLs. - */ -static int -zvol_replay_clone_range(void *arg1, void *arg2, boolean_t byteswap) -{ - char name[ZFS_MAX_DATASET_NAME_LEN]; - zvol_state_t *zv = arg1; - objset_t *os = zv->zv_objset; - lr_clone_range_t *lr = arg2; - blkptr_t *bp; - dmu_tx_t *tx; - spa_t *spa; - uint_t ii; - int error; - - ASSERT3U(lr->lr_common.lrc_reclen, >=, sizeof (*lr)); - ASSERT3U(lr->lr_common.lrc_reclen, >=, offsetof(lr_clone_range_t, - lr_bps[lr->lr_nbps])); - - dmu_objset_name(os, name); - cmn_err(CE_WARN, "ZFS dropping block cloning transaction for %s.", - name); - - if (byteswap) - byteswap_uint64_array(lr, sizeof (*lr)); - - tx = dmu_tx_create(os); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - dmu_tx_abort(tx); - return (error); - } - - spa = os->os_spa; - - for (ii = 0; ii < lr->lr_nbps; ii++) { - bp = &lr->lr_bps[ii]; - - if (!BP_IS_HOLE(bp)) { - zio_free(spa, dmu_tx_get_txg(tx), bp); - } - } - - (void) zil_replaying(zv->zv_zilog, tx); - dmu_tx_commit(tx); - - return (0); -} - static int zvol_replay_err(void *arg1, void *arg2, boolean_t byteswap) { @@ -578,7 +520,7 @@ zil_replay_func_t *const zvol_replay_vector[TX_MAX_TYPE] = { zvol_replay_err, /* TX_SETSAXATTR */ zvol_replay_err, /* TX_RENAME_EXCHANGE */ zvol_replay_err, /* TX_RENAME_WHITEOUT */ - zvol_replay_clone_range /* TX_CLONE_RANGE */ + zvol_replay_err, /* TX_CLONE_RANGE */ }; /* |