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Illumos #3100: zvol rename fails with EBUSY when dirty.

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illumos/illumos-gate@2e2c135528
Illumos changeset: 13780:6da32a929222

3100 zvol rename fails with EBUSY when dirty

Reviewed by: Christopher Siden <chris.siden@delphix.com>
Reviewed by: Adam H. Leventhal <ahl@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Approved by: Eric Schrock <eric.schrock@delphix.com>

Ported-by: Etienne Dechamps <etienne.dechamps@ovh.net>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #995
This commit is contained in:
Matthew Ahrens 2012-08-24 07:12:46 -07:00 committed by Brian Behlendorf
parent 0677cb6f52
commit 04434775b7
8 changed files with 28 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
include/sys/dmu_objset.h
View File

@ -161,7 +161,6 @@ timestruc_t dmu_objset_snap_cmtime(objset_t *os);
/* called from dsl */
void dmu_objset_sync(objset_t *os, zio_t *zio, dmu_tx_t *tx);
boolean_t dmu_objset_is_dirty(objset_t *os, uint64_t txg);
boolean_t dmu_objset_is_dirty_anywhere(objset_t *os);
objset_t *dmu_objset_create_impl(spa_t *spa, struct dsl_dataset *ds,
blkptr_t *bp, dmu_objset_type_t type, dmu_tx_t *tx);
int dmu_objset_open_impl(spa_t *spa, struct dsl_dataset *ds, blkptr_t *bp,

1
include/sys/dsl_dataset.h
View File

@ -258,6 +258,7 @@ int dsl_dataset_space_written(dsl_dataset_t *oldsnap, dsl_dataset_t *new,
uint64_t *usedp, uint64_t *compp, uint64_t *uncompp);
int dsl_dataset_space_wouldfree(dsl_dataset_t *firstsnap, dsl_dataset_t *last,
uint64_t *usedp, uint64_t *compp, uint64_t *uncompp);
boolean_t dsl_dataset_is_dirty(dsl_dataset_t *ds);
int dsl_dsobj_to_dsname(char *pname, uint64_t obj, char *buf);

2
lib/libzfs/libzfs_dataset.c
View File

@ -3700,7 +3700,7 @@ zfs_rollback(zfs_handle_t *zhp, zfs_handle_t *snap, boolean_t force)
zhp->zfs_type == ZFS_TYPE_VOLUME);
/*
* Destroy all recent snapshots and its dependends.
* Destroy all recent snapshots and their dependents.
*/
cb.cb_force = force;
cb.cb_target = snap->zfs_name;

11
module/zfs/dmu_objset.c
View File

@ -1182,17 +1182,6 @@ dmu_objset_is_dirty(objset_t *os, uint64_t txg)
!list_is_empty(&os->os_free_dnodes[txg & TXG_MASK]));
}
boolean_t
dmu_objset_is_dirty_anywhere(objset_t *os)
{
int t;
for (t = 0; t < TXG_SIZE; t++)
if (dmu_objset_is_dirty(os, t))
return (B_TRUE);
return (B_FALSE);
}
static objset_used_cb_t *used_cbs[DMU_OST_NUMTYPES];
void

21
module/zfs/dsl_dataset.c
View File

@ -1231,6 +1231,19 @@ dsl_dataset_dirty(dsl_dataset_t *ds, dmu_tx_t *tx)
}
}
boolean_t
dsl_dataset_is_dirty(dsl_dataset_t *ds)
{
int t;
for (t = 0; t < TXG_SIZE; t++) {
if (txg_list_member(&ds->ds_dir->dd_pool->dp_dirty_datasets,
ds, t))
return (B_TRUE);
}
return (B_FALSE);
}
/*
* The unique space in the head dataset can be calculated by subtracting
* the space used in the most recent snapshot, that is still being used
@ -3402,10 +3415,6 @@ dsl_dataset_set_quota_sync(void *arg1, void *arg2, dmu_tx_t *tx)
if (ds->ds_quota != effective_value) {
dmu_buf_will_dirty(ds->ds_dbuf, tx);
ds->ds_quota = effective_value;
spa_history_log_internal(LOG_DS_REFQUOTA,
ds->ds_dir->dd_pool->dp_spa, tx, "%lld dataset = %llu ",
(longlong_t)ds->ds_quota, ds->ds_object);
}
}
@ -3509,10 +3518,6 @@ dsl_dataset_set_reservation_sync(void *arg1, void *arg2, dmu_tx_t *tx)
dsl_dir_diduse_space(ds->ds_dir, DD_USED_REFRSRV, delta, 0, 0, tx);
mutex_exit(&ds->ds_dir->dd_lock);
spa_history_log_internal(LOG_DS_REFRESERV,
ds->ds_dir->dd_pool->dp_spa, tx, "%lld dataset = %llu",
(longlong_t)effective_value, ds->ds_object);
}
int

8
module/zfs/dsl_dir.c
View File

@ -1066,10 +1066,6 @@ dsl_dir_set_quota_sync(void *arg1, void *arg2, dmu_tx_t *tx)
mutex_enter(&dd->dd_lock);
dd->dd_phys->dd_quota = effective_value;
mutex_exit(&dd->dd_lock);
spa_history_log_internal(LOG_DS_QUOTA, dd->dd_pool->dp_spa,
tx, "%lld dataset = %llu ",
(longlong_t)effective_value, dd->dd_phys->dd_head_dataset_obj);
}
int
@ -1182,10 +1178,6 @@ dsl_dir_set_reservation_sync(void *arg1, void *arg2, dmu_tx_t *tx)
delta, 0, 0, tx);
}
mutex_exit(&dd->dd_lock);
spa_history_log_internal(LOG_DS_RESERVATION, dd->dd_pool->dp_spa,
tx, "%lld dataset = %llu",
(longlong_t)effective_value, dd->dd_phys->dd_head_dataset_obj);
}
int

6
module/zfs/zfs_vfsops.c
View File

@ -1112,9 +1112,9 @@ zfs_sb_teardown(zfs_sb_t *zsb, boolean_t unmounting)
/*
* Evict cached data
*/
if (dmu_objset_is_dirty_anywhere(zsb->z_os))
if (!zfs_is_readonly(zsb))
txg_wait_synced(dmu_objset_pool(zsb->z_os), 0);
if (dsl_dataset_is_dirty(dmu_objset_ds(zsb->z_os)) &&
!zfs_is_readonly(zsb))
txg_wait_synced(dmu_objset_pool(zsb->z_os), 0);
(void) dmu_objset_evict_dbufs(zsb->z_os);
return (0);

10
module/zfs/zvol.c
View File

@ -901,8 +901,18 @@ zvol_last_close(zvol_state_t *zv)
{
zil_close(zv->zv_zilog);
zv->zv_zilog = NULL;
dmu_buf_rele(zv->zv_dbuf, zvol_tag);
zv->zv_dbuf = NULL;
/*
* Evict cached data
*/
if (dsl_dataset_is_dirty(dmu_objset_ds(zv->zv_objset)) &&
!(zv->zv_flags & ZVOL_RDONLY))
txg_wait_synced(dmu_objset_pool(zv->zv_objset), 0);
(void) dmu_objset_evict_dbufs(zv->zv_objset);
dmu_objset_disown(zv->zv_objset, zvol_tag);
zv->zv_objset = NULL;
}