diff options
Diffstat (limited to 'module/zfs/dmu_send.c')
| -rw-r--r-- | module/zfs/dmu_send.c | 40 |
1 files changed, 37 insertions, 3 deletions
diff --git a/module/zfs/dmu_send.c b/module/zfs/dmu_send.c index 1f61368c5..1ce17a2fa 100644 --- a/module/zfs/dmu_send.c +++ b/module/zfs/dmu_send.c @@ -22,7 +22,7 @@ * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2011 by Delphix. All rights reserved. * Copyright 2011 Nexenta Systems, Inc. All rights reserved. - * Copyright (c) 2012, Joyent, Inc. All rights reserved. + * Copyright (c) 2014, Joyent, Inc. All rights reserved. * Copyright (c) 2011, 2014 by Delphix. All rights reserved. */ @@ -897,6 +897,20 @@ recv_begin_check_existing_impl(dmu_recv_begin_arg_t *drba, dsl_dataset_t *ds, if (error != ENOENT) return (error == 0 ? EEXIST : error); + /* + * Check snapshot limit before receiving. We'll recheck again at the + * end, but might as well abort before receiving if we're already over + * the limit. + * + * Note that we do not check the file system limit with + * dsl_dir_fscount_check because the temporary %clones don't count + * against that limit. + */ + error = dsl_fs_ss_limit_check(ds->ds_dir, 1, ZFS_PROP_SNAPSHOT_LIMIT, + NULL, drba->drba_cred); + if (error != 0) + return (error); + if (fromguid != 0) { dsl_dataset_t *snap; uint64_t obj = ds->ds_phys->ds_prev_snap_obj; @@ -1015,6 +1029,25 @@ dmu_recv_begin_check(void *arg, dmu_tx_t *tx) if (error != 0) return (error); + /* + * Check filesystem and snapshot limits before receiving. We'll + * recheck snapshot limits again at the end (we create the + * filesystems and increment those counts during begin_sync). + */ + error = dsl_fs_ss_limit_check(ds->ds_dir, 1, + ZFS_PROP_FILESYSTEM_LIMIT, NULL, drba->drba_cred); + if (error != 0) { + dsl_dataset_rele(ds, FTAG); + return (error); + } + + error = dsl_fs_ss_limit_check(ds->ds_dir, 1, + ZFS_PROP_SNAPSHOT_LIMIT, NULL, drba->drba_cred); + if (error != 0) { + dsl_dataset_rele(ds, FTAG); + return (error); + } + if (drba->drba_origin != NULL) { dsl_dataset_t *origin; error = dsl_dataset_hold(dp, drba->drba_origin, @@ -1124,6 +1157,7 @@ dmu_recv_begin(char *tofs, char *tosnap, struct drr_begin *drrb, drc->drc_tosnap = tosnap; drc->drc_tofs = tofs; drc->drc_force = force; + drc->drc_cred = CRED(); if (drrb->drr_magic == BSWAP_64(DMU_BACKUP_MAGIC)) drc->drc_byteswap = B_TRUE; @@ -1919,7 +1953,7 @@ dmu_recv_end_check(void *arg, dmu_tx_t *tx) return (error); } error = dsl_dataset_snapshot_check_impl(origin_head, - drc->drc_tosnap, tx, B_TRUE); + drc->drc_tosnap, tx, B_TRUE, 1, drc->drc_cred); dsl_dataset_rele(origin_head, FTAG); if (error != 0) return (error); @@ -1927,7 +1961,7 @@ dmu_recv_end_check(void *arg, dmu_tx_t *tx) error = dsl_destroy_head_check_impl(drc->drc_ds, 1); } else { error = dsl_dataset_snapshot_check_impl(drc->drc_ds, - drc->drc_tosnap, tx, B_TRUE); + drc->drc_tosnap, tx, B_TRUE, 1, drc->drc_cred); } return (error); } |