diff options
Diffstat (limited to 'module/zfs')
| -rw-r--r-- | module/zfs/dsl_dataset.c | 6 | ||||
| -rw-r--r-- | module/zfs/dsl_dir.c | 21 |
2 files changed, 14 insertions, 13 deletions
diff --git a/module/zfs/dsl_dataset.c b/module/zfs/dsl_dataset.c index 9a9e24684..7c8995eba 100644 --- a/module/zfs/dsl_dataset.c +++ b/module/zfs/dsl_dataset.c @@ -102,9 +102,8 @@ dsl_dataset_block_born(dsl_dataset_t *ds, const blkptr_t *bp, dmu_tx_t *tx) used, compressed, uncompressed); return; } - dmu_buf_will_dirty(ds->ds_dbuf, tx); - mutex_enter(&ds->ds_dir->dd_lock); + dmu_buf_will_dirty(ds->ds_dbuf, tx); mutex_enter(&ds->ds_lock); delta = parent_delta(ds, used); ds->ds_phys->ds_referenced_bytes += used; @@ -116,7 +115,6 @@ dsl_dataset_block_born(dsl_dataset_t *ds, const blkptr_t *bp, dmu_tx_t *tx) compressed, uncompressed, tx); dsl_dir_transfer_space(ds->ds_dir, used - delta, DD_USED_REFRSRV, DD_USED_HEAD, tx); - mutex_exit(&ds->ds_dir->dd_lock); } int @@ -153,7 +151,6 @@ dsl_dataset_block_kill(dsl_dataset_t *ds, const blkptr_t *bp, dmu_tx_t *tx, dprintf_bp(bp, "freeing ds=%llu", ds->ds_object); dsl_free(tx->tx_pool, tx->tx_txg, bp); - mutex_enter(&ds->ds_dir->dd_lock); mutex_enter(&ds->ds_lock); ASSERT(ds->ds_phys->ds_unique_bytes >= used || !DS_UNIQUE_IS_ACCURATE(ds)); @@ -164,7 +161,6 @@ dsl_dataset_block_kill(dsl_dataset_t *ds, const blkptr_t *bp, dmu_tx_t *tx, delta, -compressed, -uncompressed, tx); dsl_dir_transfer_space(ds->ds_dir, -used - delta, DD_USED_REFRSRV, DD_USED_HEAD, tx); - mutex_exit(&ds->ds_dir->dd_lock); } else { dprintf_bp(bp, "putting on dead list: %s", ""); if (async) { diff --git a/module/zfs/dsl_dir.c b/module/zfs/dsl_dir.c index c1b518241..44795f344 100644 --- a/module/zfs/dsl_dir.c +++ b/module/zfs/dsl_dir.c @@ -846,11 +846,21 @@ dsl_dir_diduse_space(dsl_dir_t *dd, dd_used_t type, int64_t used, int64_t compressed, int64_t uncompressed, dmu_tx_t *tx) { int64_t accounted_delta; + + /* + * dsl_dataset_set_refreservation_sync_impl() calls this with + * dd_lock held, so that it can atomically update + * ds->ds_reserved and the dsl_dir accounting, so that + * dsl_dataset_check_quota() can see dataset and dir accounting + * consistently. + */ boolean_t needlock = !MUTEX_HELD(&dd->dd_lock); ASSERT(dmu_tx_is_syncing(tx)); ASSERT(type < DD_USED_NUM); + dmu_buf_will_dirty(dd->dd_dbuf, tx); + if (needlock) mutex_enter(&dd->dd_lock); accounted_delta = parent_delta(dd, dd->dd_phys->dd_used_bytes, used); @@ -859,7 +869,6 @@ dsl_dir_diduse_space(dsl_dir_t *dd, dd_used_t type, dd->dd_phys->dd_compressed_bytes >= -compressed); ASSERT(uncompressed >= 0 || dd->dd_phys->dd_uncompressed_bytes >= -uncompressed); - dmu_buf_will_dirty(dd->dd_dbuf, tx); dd->dd_phys->dd_used_bytes += used; dd->dd_phys->dd_uncompressed_bytes += uncompressed; dd->dd_phys->dd_compressed_bytes += compressed; @@ -894,8 +903,6 @@ void dsl_dir_transfer_space(dsl_dir_t *dd, int64_t delta, dd_used_t oldtype, dd_used_t newtype, dmu_tx_t *tx) { - boolean_t needlock = !MUTEX_HELD(&dd->dd_lock); - ASSERT(dmu_tx_is_syncing(tx)); ASSERT(oldtype < DD_USED_NUM); ASSERT(newtype < DD_USED_NUM); @@ -903,17 +910,15 @@ dsl_dir_transfer_space(dsl_dir_t *dd, int64_t delta, if (delta == 0 || !(dd->dd_phys->dd_flags & DD_FLAG_USED_BREAKDOWN)) return; - if (needlock) - mutex_enter(&dd->dd_lock); + dmu_buf_will_dirty(dd->dd_dbuf, tx); + mutex_enter(&dd->dd_lock); ASSERT(delta > 0 ? dd->dd_phys->dd_used_breakdown[oldtype] >= delta : dd->dd_phys->dd_used_breakdown[newtype] >= -delta); ASSERT(dd->dd_phys->dd_used_bytes >= ABS(delta)); - dmu_buf_will_dirty(dd->dd_dbuf, tx); dd->dd_phys->dd_used_breakdown[oldtype] -= delta; dd->dd_phys->dd_used_breakdown[newtype] += delta; - if (needlock) - mutex_exit(&dd->dd_lock); + mutex_exit(&dd->dd_lock); } typedef struct dsl_dir_set_qr_arg { |