2010-05-28 20:45:14 +00:00
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/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
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2013-07-05 19:37:16 +00:00
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* Copyright (c) 2013 by Delphix. All rights reserved.
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2010-05-28 20:45:14 +00:00
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*/
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#include <sys/bpobj.h>
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#include <sys/zfs_context.h>
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#include <sys/refcount.h>
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2011-11-17 18:14:36 +00:00
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#include <sys/dsl_pool.h>
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2012-12-23 23:57:14 +00:00
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#include <sys/zfeature.h>
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#include <sys/zap.h>
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/*
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* Return an empty bpobj, preferably the empty dummy one (dp_empty_bpobj).
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*/
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uint64_t
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bpobj_alloc_empty(objset_t *os, int blocksize, dmu_tx_t *tx)
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{
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spa_t *spa = dmu_objset_spa(os);
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dsl_pool_t *dp = dmu_objset_pool(os);
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2013-10-08 17:13:05 +00:00
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if (spa_feature_is_enabled(spa, SPA_FEATURE_EMPTY_BPOBJ)) {
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if (!spa_feature_is_active(spa, SPA_FEATURE_EMPTY_BPOBJ)) {
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2013-05-10 21:17:03 +00:00
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ASSERT0(dp->dp_empty_bpobj);
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2012-12-23 23:57:14 +00:00
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dp->dp_empty_bpobj =
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bpobj_alloc(os, SPA_MAXBLOCKSIZE, tx);
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VERIFY(zap_add(os,
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DMU_POOL_DIRECTORY_OBJECT,
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DMU_POOL_EMPTY_BPOBJ, sizeof (uint64_t), 1,
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&dp->dp_empty_bpobj, tx) == 0);
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}
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2013-10-08 17:13:05 +00:00
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spa_feature_incr(spa, SPA_FEATURE_EMPTY_BPOBJ, tx);
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2012-12-23 23:57:14 +00:00
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ASSERT(dp->dp_empty_bpobj != 0);
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return (dp->dp_empty_bpobj);
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} else {
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return (bpobj_alloc(os, blocksize, tx));
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}
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}
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void
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bpobj_decr_empty(objset_t *os, dmu_tx_t *tx)
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{
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dsl_pool_t *dp = dmu_objset_pool(os);
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2013-10-08 17:13:05 +00:00
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spa_feature_decr(dmu_objset_spa(os), SPA_FEATURE_EMPTY_BPOBJ, tx);
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if (!spa_feature_is_active(dmu_objset_spa(os),
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SPA_FEATURE_EMPTY_BPOBJ)) {
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2012-12-23 23:57:14 +00:00
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VERIFY3U(0, ==, zap_remove(dp->dp_meta_objset,
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DMU_POOL_DIRECTORY_OBJECT,
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DMU_POOL_EMPTY_BPOBJ, tx));
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VERIFY3U(0, ==, dmu_object_free(os, dp->dp_empty_bpobj, tx));
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dp->dp_empty_bpobj = 0;
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}
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}
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2010-05-28 20:45:14 +00:00
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uint64_t
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bpobj_alloc(objset_t *os, int blocksize, dmu_tx_t *tx)
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{
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int size;
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if (spa_version(dmu_objset_spa(os)) < SPA_VERSION_BPOBJ_ACCOUNT)
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size = BPOBJ_SIZE_V0;
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else if (spa_version(dmu_objset_spa(os)) < SPA_VERSION_DEADLISTS)
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size = BPOBJ_SIZE_V1;
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else
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size = sizeof (bpobj_phys_t);
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return (dmu_object_alloc(os, DMU_OT_BPOBJ, blocksize,
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DMU_OT_BPOBJ_HDR, size, tx));
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}
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void
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bpobj_free(objset_t *os, uint64_t obj, dmu_tx_t *tx)
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{
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int64_t i;
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bpobj_t bpo;
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dmu_object_info_t doi;
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int epb;
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dmu_buf_t *dbuf = NULL;
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2012-12-23 23:57:14 +00:00
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ASSERT(obj != dmu_objset_pool(os)->dp_empty_bpobj);
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2010-05-28 20:45:14 +00:00
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VERIFY3U(0, ==, bpobj_open(&bpo, os, obj));
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mutex_enter(&bpo.bpo_lock);
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if (!bpo.bpo_havesubobj || bpo.bpo_phys->bpo_subobjs == 0)
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goto out;
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VERIFY3U(0, ==, dmu_object_info(os, bpo.bpo_phys->bpo_subobjs, &doi));
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epb = doi.doi_data_block_size / sizeof (uint64_t);
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for (i = bpo.bpo_phys->bpo_num_subobjs - 1; i >= 0; i--) {
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uint64_t *objarray;
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uint64_t offset, blkoff;
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offset = i * sizeof (uint64_t);
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blkoff = P2PHASE(i, epb);
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if (dbuf == NULL || dbuf->db_offset > offset) {
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if (dbuf)
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dmu_buf_rele(dbuf, FTAG);
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VERIFY3U(0, ==, dmu_buf_hold(os,
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bpo.bpo_phys->bpo_subobjs, offset, FTAG, &dbuf, 0));
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}
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ASSERT3U(offset, >=, dbuf->db_offset);
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ASSERT3U(offset, <, dbuf->db_offset + dbuf->db_size);
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objarray = dbuf->db_data;
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bpobj_free(os, objarray[blkoff], tx);
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}
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if (dbuf) {
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dmu_buf_rele(dbuf, FTAG);
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dbuf = NULL;
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}
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VERIFY3U(0, ==, dmu_object_free(os, bpo.bpo_phys->bpo_subobjs, tx));
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out:
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mutex_exit(&bpo.bpo_lock);
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bpobj_close(&bpo);
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VERIFY3U(0, ==, dmu_object_free(os, obj, tx));
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}
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int
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bpobj_open(bpobj_t *bpo, objset_t *os, uint64_t object)
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{
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dmu_object_info_t doi;
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int err;
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err = dmu_object_info(os, object, &doi);
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if (err)
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return (err);
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bzero(bpo, sizeof (*bpo));
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mutex_init(&bpo->bpo_lock, NULL, MUTEX_DEFAULT, NULL);
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ASSERT(bpo->bpo_dbuf == NULL);
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ASSERT(bpo->bpo_phys == NULL);
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ASSERT(object != 0);
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ASSERT3U(doi.doi_type, ==, DMU_OT_BPOBJ);
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ASSERT3U(doi.doi_bonus_type, ==, DMU_OT_BPOBJ_HDR);
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2010-08-26 21:24:34 +00:00
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err = dmu_bonus_hold(os, object, bpo, &bpo->bpo_dbuf);
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if (err)
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return (err);
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2010-05-28 20:45:14 +00:00
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bpo->bpo_os = os;
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bpo->bpo_object = object;
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bpo->bpo_epb = doi.doi_data_block_size >> SPA_BLKPTRSHIFT;
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bpo->bpo_havecomp = (doi.doi_bonus_size > BPOBJ_SIZE_V0);
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bpo->bpo_havesubobj = (doi.doi_bonus_size > BPOBJ_SIZE_V1);
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bpo->bpo_phys = bpo->bpo_dbuf->db_data;
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return (0);
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}
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void
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bpobj_close(bpobj_t *bpo)
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{
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/* Lame workaround for closing a bpobj that was never opened. */
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if (bpo->bpo_object == 0)
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return;
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dmu_buf_rele(bpo->bpo_dbuf, bpo);
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if (bpo->bpo_cached_dbuf != NULL)
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dmu_buf_rele(bpo->bpo_cached_dbuf, bpo);
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bpo->bpo_dbuf = NULL;
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bpo->bpo_phys = NULL;
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bpo->bpo_cached_dbuf = NULL;
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2010-08-26 21:24:34 +00:00
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bpo->bpo_object = 0;
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2010-05-28 20:45:14 +00:00
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mutex_destroy(&bpo->bpo_lock);
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}
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2014-06-05 21:19:08 +00:00
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static boolean_t
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bpobj_hasentries(bpobj_t *bpo)
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{
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return (bpo->bpo_phys->bpo_num_blkptrs != 0 ||
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(bpo->bpo_havesubobj && bpo->bpo_phys->bpo_num_subobjs != 0));
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}
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2010-05-28 20:45:14 +00:00
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static int
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bpobj_iterate_impl(bpobj_t *bpo, bpobj_itor_t func, void *arg, dmu_tx_t *tx,
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boolean_t free)
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{
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dmu_object_info_t doi;
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int epb;
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int64_t i;
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int err = 0;
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dmu_buf_t *dbuf = NULL;
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mutex_enter(&bpo->bpo_lock);
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if (free)
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dmu_buf_will_dirty(bpo->bpo_dbuf, tx);
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for (i = bpo->bpo_phys->bpo_num_blkptrs - 1; i >= 0; i--) {
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blkptr_t *bparray;
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blkptr_t *bp;
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uint64_t offset, blkoff;
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offset = i * sizeof (blkptr_t);
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blkoff = P2PHASE(i, bpo->bpo_epb);
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if (dbuf == NULL || dbuf->db_offset > offset) {
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if (dbuf)
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dmu_buf_rele(dbuf, FTAG);
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err = dmu_buf_hold(bpo->bpo_os, bpo->bpo_object, offset,
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FTAG, &dbuf, 0);
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if (err)
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break;
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}
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ASSERT3U(offset, >=, dbuf->db_offset);
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ASSERT3U(offset, <, dbuf->db_offset + dbuf->db_size);
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bparray = dbuf->db_data;
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bp = &bparray[blkoff];
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err = func(arg, bp, tx);
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if (err)
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break;
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if (free) {
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bpo->bpo_phys->bpo_bytes -=
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bp_get_dsize_sync(dmu_objset_spa(bpo->bpo_os), bp);
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ASSERT3S(bpo->bpo_phys->bpo_bytes, >=, 0);
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if (bpo->bpo_havecomp) {
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bpo->bpo_phys->bpo_comp -= BP_GET_PSIZE(bp);
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bpo->bpo_phys->bpo_uncomp -= BP_GET_UCSIZE(bp);
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}
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bpo->bpo_phys->bpo_num_blkptrs--;
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ASSERT3S(bpo->bpo_phys->bpo_num_blkptrs, >=, 0);
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}
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}
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if (dbuf) {
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dmu_buf_rele(dbuf, FTAG);
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dbuf = NULL;
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}
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if (free) {
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i++;
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VERIFY3U(0, ==, dmu_free_range(bpo->bpo_os, bpo->bpo_object,
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i * sizeof (blkptr_t), -1ULL, tx));
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}
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if (err || !bpo->bpo_havesubobj || bpo->bpo_phys->bpo_subobjs == 0)
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goto out;
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ASSERT(bpo->bpo_havecomp);
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err = dmu_object_info(bpo->bpo_os, bpo->bpo_phys->bpo_subobjs, &doi);
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2010-08-26 21:24:34 +00:00
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if (err) {
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mutex_exit(&bpo->bpo_lock);
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2010-05-28 20:45:14 +00:00
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return (err);
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2010-08-26 21:24:34 +00:00
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}
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2013-10-08 17:13:05 +00:00
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ASSERT3U(doi.doi_type, ==, DMU_OT_BPOBJ_SUBOBJ);
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2010-05-28 20:45:14 +00:00
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epb = doi.doi_data_block_size / sizeof (uint64_t);
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for (i = bpo->bpo_phys->bpo_num_subobjs - 1; i >= 0; i--) {
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uint64_t *objarray;
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uint64_t offset, blkoff;
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bpobj_t sublist;
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uint64_t used_before, comp_before, uncomp_before;
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uint64_t used_after, comp_after, uncomp_after;
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offset = i * sizeof (uint64_t);
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blkoff = P2PHASE(i, epb);
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if (dbuf == NULL || dbuf->db_offset > offset) {
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if (dbuf)
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dmu_buf_rele(dbuf, FTAG);
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err = dmu_buf_hold(bpo->bpo_os,
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bpo->bpo_phys->bpo_subobjs, offset, FTAG, &dbuf, 0);
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if (err)
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break;
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}
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ASSERT3U(offset, >=, dbuf->db_offset);
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ASSERT3U(offset, <, dbuf->db_offset + dbuf->db_size);
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objarray = dbuf->db_data;
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err = bpobj_open(&sublist, bpo->bpo_os, objarray[blkoff]);
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if (err)
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break;
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if (free) {
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err = bpobj_space(&sublist,
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&used_before, &comp_before, &uncomp_before);
|
2015-04-26 22:30:46 +00:00
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if (err != 0) {
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bpobj_close(&sublist);
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2010-05-28 20:45:14 +00:00
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break;
|
2015-04-26 22:30:46 +00:00
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}
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2010-05-28 20:45:14 +00:00
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}
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err = bpobj_iterate_impl(&sublist, func, arg, tx, free);
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if (free) {
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VERIFY3U(0, ==, bpobj_space(&sublist,
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&used_after, &comp_after, &uncomp_after));
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bpo->bpo_phys->bpo_bytes -= used_before - used_after;
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ASSERT3S(bpo->bpo_phys->bpo_bytes, >=, 0);
|
2010-08-26 21:24:34 +00:00
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|
bpo->bpo_phys->bpo_comp -= comp_before - comp_after;
|
2010-05-28 20:45:14 +00:00
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bpo->bpo_phys->bpo_uncomp -=
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|
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uncomp_before - uncomp_after;
|
|
|
|
}
|
|
|
|
|
|
|
|
bpobj_close(&sublist);
|
|
|
|
if (err)
|
|
|
|
break;
|
|
|
|
if (free) {
|
|
|
|
err = dmu_object_free(bpo->bpo_os,
|
|
|
|
objarray[blkoff], tx);
|
|
|
|
if (err)
|
|
|
|
break;
|
|
|
|
bpo->bpo_phys->bpo_num_subobjs--;
|
|
|
|
ASSERT3S(bpo->bpo_phys->bpo_num_subobjs, >=, 0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (dbuf) {
|
|
|
|
dmu_buf_rele(dbuf, FTAG);
|
|
|
|
dbuf = NULL;
|
|
|
|
}
|
|
|
|
if (free) {
|
|
|
|
VERIFY3U(0, ==, dmu_free_range(bpo->bpo_os,
|
|
|
|
bpo->bpo_phys->bpo_subobjs,
|
|
|
|
(i + 1) * sizeof (uint64_t), -1ULL, tx));
|
|
|
|
}
|
|
|
|
|
|
|
|
out:
|
|
|
|
/* If there are no entries, there should be no bytes. */
|
2014-06-05 21:19:08 +00:00
|
|
|
if (!bpobj_hasentries(bpo)) {
|
|
|
|
ASSERT0(bpo->bpo_phys->bpo_bytes);
|
|
|
|
ASSERT0(bpo->bpo_phys->bpo_comp);
|
|
|
|
ASSERT0(bpo->bpo_phys->bpo_uncomp);
|
|
|
|
}
|
2010-05-28 20:45:14 +00:00
|
|
|
|
|
|
|
mutex_exit(&bpo->bpo_lock);
|
|
|
|
return (err);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Iterate and remove the entries. If func returns nonzero, iteration
|
|
|
|
* will stop and that entry will not be removed.
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
bpobj_iterate(bpobj_t *bpo, bpobj_itor_t func, void *arg, dmu_tx_t *tx)
|
|
|
|
{
|
|
|
|
return (bpobj_iterate_impl(bpo, func, arg, tx, B_TRUE));
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Iterate the entries. If func returns nonzero, iteration will stop.
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
bpobj_iterate_nofree(bpobj_t *bpo, bpobj_itor_t func, void *arg, dmu_tx_t *tx)
|
|
|
|
{
|
|
|
|
return (bpobj_iterate_impl(bpo, func, arg, tx, B_FALSE));
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
bpobj_enqueue_subobj(bpobj_t *bpo, uint64_t subobj, dmu_tx_t *tx)
|
|
|
|
{
|
|
|
|
bpobj_t subbpo;
|
2010-08-26 21:24:34 +00:00
|
|
|
uint64_t used, comp, uncomp, subsubobjs;
|
2013-09-04 12:00:57 +00:00
|
|
|
ASSERTV(dmu_object_info_t doi);
|
2010-05-28 20:45:14 +00:00
|
|
|
|
|
|
|
ASSERT(bpo->bpo_havesubobj);
|
|
|
|
ASSERT(bpo->bpo_havecomp);
|
2012-12-23 23:57:14 +00:00
|
|
|
ASSERT(bpo->bpo_object != dmu_objset_pool(bpo->bpo_os)->dp_empty_bpobj);
|
|
|
|
|
|
|
|
if (subobj == dmu_objset_pool(bpo->bpo_os)->dp_empty_bpobj) {
|
|
|
|
bpobj_decr_empty(bpo->bpo_os, tx);
|
|
|
|
return;
|
|
|
|
}
|
2010-05-28 20:45:14 +00:00
|
|
|
|
|
|
|
VERIFY3U(0, ==, bpobj_open(&subbpo, bpo->bpo_os, subobj));
|
|
|
|
VERIFY3U(0, ==, bpobj_space(&subbpo, &used, &comp, &uncomp));
|
|
|
|
|
2014-06-05 21:19:08 +00:00
|
|
|
if (!bpobj_hasentries(&subbpo)) {
|
2010-05-28 20:45:14 +00:00
|
|
|
/* No point in having an empty subobj. */
|
2010-08-26 21:24:34 +00:00
|
|
|
bpobj_close(&subbpo);
|
2010-05-28 20:45:14 +00:00
|
|
|
bpobj_free(bpo->bpo_os, subobj, tx);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
dmu_buf_will_dirty(bpo->bpo_dbuf, tx);
|
|
|
|
if (bpo->bpo_phys->bpo_subobjs == 0) {
|
|
|
|
bpo->bpo_phys->bpo_subobjs = dmu_object_alloc(bpo->bpo_os,
|
|
|
|
DMU_OT_BPOBJ_SUBOBJ, SPA_MAXBLOCKSIZE, DMU_OT_NONE, 0, tx);
|
|
|
|
}
|
|
|
|
|
2013-09-04 12:00:57 +00:00
|
|
|
ASSERT0(dmu_object_info(bpo->bpo_os, bpo->bpo_phys->bpo_subobjs, &doi));
|
|
|
|
ASSERT3U(doi.doi_type, ==, DMU_OT_BPOBJ_SUBOBJ);
|
|
|
|
|
2010-05-28 20:45:14 +00:00
|
|
|
mutex_enter(&bpo->bpo_lock);
|
|
|
|
dmu_write(bpo->bpo_os, bpo->bpo_phys->bpo_subobjs,
|
|
|
|
bpo->bpo_phys->bpo_num_subobjs * sizeof (subobj),
|
|
|
|
sizeof (subobj), &subobj, tx);
|
|
|
|
bpo->bpo_phys->bpo_num_subobjs++;
|
2010-08-26 21:24:34 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* If subobj has only one block of subobjs, then move subobj's
|
|
|
|
* subobjs to bpo's subobj list directly. This reduces
|
|
|
|
* recursion in bpobj_iterate due to nested subobjs.
|
|
|
|
*/
|
|
|
|
subsubobjs = subbpo.bpo_phys->bpo_subobjs;
|
|
|
|
if (subsubobjs != 0) {
|
|
|
|
dmu_object_info_t doi;
|
|
|
|
|
|
|
|
VERIFY3U(0, ==, dmu_object_info(bpo->bpo_os, subsubobjs, &doi));
|
|
|
|
if (doi.doi_max_offset == doi.doi_data_block_size) {
|
|
|
|
dmu_buf_t *subdb;
|
|
|
|
uint64_t numsubsub = subbpo.bpo_phys->bpo_num_subobjs;
|
|
|
|
|
|
|
|
VERIFY3U(0, ==, dmu_buf_hold(bpo->bpo_os, subsubobjs,
|
|
|
|
0, FTAG, &subdb, 0));
|
2013-07-05 19:37:16 +00:00
|
|
|
/*
|
|
|
|
* Make sure that we are not asking dmu_write()
|
|
|
|
* to write more data than we have in our buffer.
|
|
|
|
*/
|
|
|
|
VERIFY3U(subdb->db_size, >=,
|
|
|
|
numsubsub * sizeof (subobj));
|
2010-08-26 21:24:34 +00:00
|
|
|
dmu_write(bpo->bpo_os, bpo->bpo_phys->bpo_subobjs,
|
|
|
|
bpo->bpo_phys->bpo_num_subobjs * sizeof (subobj),
|
|
|
|
numsubsub * sizeof (subobj), subdb->db_data, tx);
|
|
|
|
dmu_buf_rele(subdb, FTAG);
|
|
|
|
bpo->bpo_phys->bpo_num_subobjs += numsubsub;
|
|
|
|
|
|
|
|
dmu_buf_will_dirty(subbpo.bpo_dbuf, tx);
|
|
|
|
subbpo.bpo_phys->bpo_subobjs = 0;
|
|
|
|
VERIFY3U(0, ==, dmu_object_free(bpo->bpo_os,
|
|
|
|
subsubobjs, tx));
|
|
|
|
}
|
|
|
|
}
|
2010-05-28 20:45:14 +00:00
|
|
|
bpo->bpo_phys->bpo_bytes += used;
|
|
|
|
bpo->bpo_phys->bpo_comp += comp;
|
|
|
|
bpo->bpo_phys->bpo_uncomp += uncomp;
|
|
|
|
mutex_exit(&bpo->bpo_lock);
|
2010-08-26 21:24:34 +00:00
|
|
|
|
|
|
|
bpobj_close(&subbpo);
|
2010-05-28 20:45:14 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
bpobj_enqueue(bpobj_t *bpo, const blkptr_t *bp, dmu_tx_t *tx)
|
|
|
|
{
|
|
|
|
blkptr_t stored_bp = *bp;
|
|
|
|
uint64_t offset;
|
|
|
|
int blkoff;
|
|
|
|
blkptr_t *bparray;
|
|
|
|
|
|
|
|
ASSERT(!BP_IS_HOLE(bp));
|
2012-12-23 23:57:14 +00:00
|
|
|
ASSERT(bpo->bpo_object != dmu_objset_pool(bpo->bpo_os)->dp_empty_bpobj);
|
2010-05-28 20:45:14 +00:00
|
|
|
|
2014-06-05 21:19:08 +00:00
|
|
|
if (BP_IS_EMBEDDED(bp)) {
|
|
|
|
/*
|
|
|
|
* The bpobj will compress better without the payload.
|
|
|
|
*
|
|
|
|
* Note that we store EMBEDDED bp's because they have an
|
|
|
|
* uncompressed size, which must be accounted for. An
|
|
|
|
* alternative would be to add their size to bpo_uncomp
|
|
|
|
* without storing the bp, but that would create additional
|
|
|
|
* complications: bpo_uncomp would be inconsistent with the
|
|
|
|
* set of BP's stored, and bpobj_iterate() wouldn't visit
|
|
|
|
* all the space accounted for in the bpobj.
|
|
|
|
*/
|
|
|
|
bzero(&stored_bp, sizeof (stored_bp));
|
|
|
|
stored_bp.blk_prop = bp->blk_prop;
|
|
|
|
stored_bp.blk_birth = bp->blk_birth;
|
|
|
|
} else if (!BP_GET_DEDUP(bp)) {
|
|
|
|
/* The bpobj will compress better without the checksum */
|
|
|
|
bzero(&stored_bp.blk_cksum, sizeof (stored_bp.blk_cksum));
|
|
|
|
}
|
|
|
|
|
2010-05-28 20:45:14 +00:00
|
|
|
/* We never need the fill count. */
|
|
|
|
stored_bp.blk_fill = 0;
|
|
|
|
|
|
|
|
mutex_enter(&bpo->bpo_lock);
|
|
|
|
|
|
|
|
offset = bpo->bpo_phys->bpo_num_blkptrs * sizeof (stored_bp);
|
|
|
|
blkoff = P2PHASE(bpo->bpo_phys->bpo_num_blkptrs, bpo->bpo_epb);
|
|
|
|
|
|
|
|
if (bpo->bpo_cached_dbuf == NULL ||
|
|
|
|
offset < bpo->bpo_cached_dbuf->db_offset ||
|
|
|
|
offset >= bpo->bpo_cached_dbuf->db_offset +
|
|
|
|
bpo->bpo_cached_dbuf->db_size) {
|
|
|
|
if (bpo->bpo_cached_dbuf)
|
|
|
|
dmu_buf_rele(bpo->bpo_cached_dbuf, bpo);
|
|
|
|
VERIFY3U(0, ==, dmu_buf_hold(bpo->bpo_os, bpo->bpo_object,
|
|
|
|
offset, bpo, &bpo->bpo_cached_dbuf, 0));
|
|
|
|
}
|
|
|
|
|
|
|
|
dmu_buf_will_dirty(bpo->bpo_cached_dbuf, tx);
|
|
|
|
bparray = bpo->bpo_cached_dbuf->db_data;
|
|
|
|
bparray[blkoff] = stored_bp;
|
|
|
|
|
|
|
|
dmu_buf_will_dirty(bpo->bpo_dbuf, tx);
|
|
|
|
bpo->bpo_phys->bpo_num_blkptrs++;
|
|
|
|
bpo->bpo_phys->bpo_bytes +=
|
|
|
|
bp_get_dsize_sync(dmu_objset_spa(bpo->bpo_os), bp);
|
|
|
|
if (bpo->bpo_havecomp) {
|
|
|
|
bpo->bpo_phys->bpo_comp += BP_GET_PSIZE(bp);
|
|
|
|
bpo->bpo_phys->bpo_uncomp += BP_GET_UCSIZE(bp);
|
|
|
|
}
|
|
|
|
mutex_exit(&bpo->bpo_lock);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct space_range_arg {
|
|
|
|
spa_t *spa;
|
|
|
|
uint64_t mintxg;
|
|
|
|
uint64_t maxtxg;
|
|
|
|
uint64_t used;
|
|
|
|
uint64_t comp;
|
|
|
|
uint64_t uncomp;
|
|
|
|
};
|
|
|
|
|
|
|
|
/* ARGSUSED */
|
|
|
|
static int
|
|
|
|
space_range_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
|
|
|
|
{
|
|
|
|
struct space_range_arg *sra = arg;
|
|
|
|
|
|
|
|
if (bp->blk_birth > sra->mintxg && bp->blk_birth <= sra->maxtxg) {
|
2011-11-17 18:14:36 +00:00
|
|
|
if (dsl_pool_sync_context(spa_get_dsl(sra->spa)))
|
|
|
|
sra->used += bp_get_dsize_sync(sra->spa, bp);
|
|
|
|
else
|
|
|
|
sra->used += bp_get_dsize(sra->spa, bp);
|
2010-05-28 20:45:14 +00:00
|
|
|
sra->comp += BP_GET_PSIZE(bp);
|
|
|
|
sra->uncomp += BP_GET_UCSIZE(bp);
|
|
|
|
}
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
bpobj_space(bpobj_t *bpo, uint64_t *usedp, uint64_t *compp, uint64_t *uncompp)
|
|
|
|
{
|
|
|
|
mutex_enter(&bpo->bpo_lock);
|
|
|
|
|
|
|
|
*usedp = bpo->bpo_phys->bpo_bytes;
|
|
|
|
if (bpo->bpo_havecomp) {
|
|
|
|
*compp = bpo->bpo_phys->bpo_comp;
|
|
|
|
*uncompp = bpo->bpo_phys->bpo_uncomp;
|
|
|
|
mutex_exit(&bpo->bpo_lock);
|
|
|
|
return (0);
|
|
|
|
} else {
|
|
|
|
mutex_exit(&bpo->bpo_lock);
|
|
|
|
return (bpobj_space_range(bpo, 0, UINT64_MAX,
|
|
|
|
usedp, compp, uncompp));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Return the amount of space in the bpobj which is:
|
|
|
|
* mintxg < blk_birth <= maxtxg
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
bpobj_space_range(bpobj_t *bpo, uint64_t mintxg, uint64_t maxtxg,
|
|
|
|
uint64_t *usedp, uint64_t *compp, uint64_t *uncompp)
|
|
|
|
{
|
|
|
|
struct space_range_arg sra = { 0 };
|
|
|
|
int err;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* As an optimization, if they want the whole txg range, just
|
|
|
|
* get bpo_bytes rather than iterating over the bps.
|
|
|
|
*/
|
|
|
|
if (mintxg < TXG_INITIAL && maxtxg == UINT64_MAX && bpo->bpo_havecomp)
|
|
|
|
return (bpobj_space(bpo, usedp, compp, uncompp));
|
|
|
|
|
|
|
|
sra.spa = dmu_objset_spa(bpo->bpo_os);
|
|
|
|
sra.mintxg = mintxg;
|
|
|
|
sra.maxtxg = maxtxg;
|
|
|
|
|
|
|
|
err = bpobj_iterate_nofree(bpo, space_range_cb, &sra, NULL);
|
|
|
|
*usedp = sra.used;
|
|
|
|
*compp = sra.comp;
|
|
|
|
*uncompp = sra.uncomp;
|
|
|
|
return (err);
|
|
|
|
}
|