diff options
Diffstat (limited to 'module/zfs/dsl_dataset.c')
| -rw-r--r-- | module/zfs/dsl_dataset.c | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/module/zfs/dsl_dataset.c b/module/zfs/dsl_dataset.c index c91c2e991..f83da16e5 100644 --- a/module/zfs/dsl_dataset.c +++ b/module/zfs/dsl_dataset.c @@ -242,42 +242,6 @@ dsl_dataset_block_kill(dsl_dataset_t *ds, const blkptr_t *bp, dmu_tx_t *tx, return (used); } -uint64_t -dsl_dataset_prev_snap_txg(dsl_dataset_t *ds) -{ - uint64_t trysnap = 0; - - if (ds == NULL) - return (0); - /* - * The snapshot creation could fail, but that would cause an - * incorrect FALSE return, which would only result in an - * overestimation of the amount of space that an operation would - * consume, which is OK. - * - * There's also a small window where we could miss a pending - * snapshot, because we could set the sync task in the quiescing - * phase. So this should only be used as a guess. - */ - if (ds->ds_trysnap_txg > - spa_last_synced_txg(ds->ds_dir->dd_pool->dp_spa)) - trysnap = ds->ds_trysnap_txg; - return (MAX(dsl_dataset_phys(ds)->ds_prev_snap_txg, trysnap)); -} - -boolean_t -dsl_dataset_block_freeable(dsl_dataset_t *ds, const blkptr_t *bp, - uint64_t blk_birth) -{ - if (blk_birth <= dsl_dataset_prev_snap_txg(ds) || - (bp != NULL && BP_IS_HOLE(bp))) - return (B_FALSE); - - ddt_prefetch(dsl_dataset_get_spa(ds), bp); - - return (B_TRUE); -} - /* * We have to release the fsid syncronously or we risk that a subsequent * mount of the same dataset will fail to unique_insert the fsid. This @@ -3731,8 +3695,6 @@ EXPORT_SYMBOL(dsl_dataset_space_wouldfree); EXPORT_SYMBOL(dsl_dataset_sync); EXPORT_SYMBOL(dsl_dataset_block_born); EXPORT_SYMBOL(dsl_dataset_block_kill); -EXPORT_SYMBOL(dsl_dataset_block_freeable); -EXPORT_SYMBOL(dsl_dataset_prev_snap_txg); EXPORT_SYMBOL(dsl_dataset_dirty); EXPORT_SYMBOL(dsl_dataset_stats); EXPORT_SYMBOL(dsl_dataset_fast_stat); |