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Illumos #3104: eliminate empty bpobjs

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3104 eliminate empty bpobjs
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Adam Leventhal <ahl@delphix.com>
Reviewed by: Christopher Siden <chris.siden@delphix.com>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Approved by: Eric Schrock <eric.schrock@delphix.com>

References:
  illumos/illumos-gate@f174573681
  illumos changeset: 13782:8f78aae28a63
  https://www.illumos.org/issues/3104

Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>
This commit is contained in:
Matthew Ahrens
2012-12-23 15:57:14 -08:00
committed by Brian Behlendorf
parent 91579709fc
commit 753c38392d
12 changed files with 166 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/sys/bpobj.h
+3
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@@ -20,6 +20,7 @@
*/
/*
* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2012 by Delphix. All rights reserved.
*/
#ifndef _SYS_BPOBJ_H
@@ -67,7 +68,9 @@ typedef struct bpobj {
typedef int bpobj_itor_t(void *arg, const blkptr_t *bp, dmu_tx_t *tx);
uint64_t bpobj_alloc(objset_t *mos, int blocksize, dmu_tx_t *tx);
uint64_t bpobj_alloc_empty(objset_t *os, int blocksize, dmu_tx_t *tx);
void bpobj_free(objset_t *os, uint64_t obj, dmu_tx_t *tx);
void bpobj_decr_empty(objset_t *os, dmu_tx_t *tx);
int bpobj_open(bpobj_t *bpo, objset_t *mos, uint64_t object);
void bpobj_close(bpobj_t *bpo);
include/sys/dmu.h
+1
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@@ -309,6 +309,7 @@ typedef void dmu_buf_evict_func_t(struct dmu_buf *db, void *user_ptr);
#define DMU_POOL_SCAN "scan"
#define DMU_POOL_FREE_BPOBJ "free_bpobj"
#define DMU_POOL_BPTREE_OBJ "bptree_obj"
#define DMU_POOL_EMPTY_BPOBJ "empty_bpobj"
/*
* Allocate an object from this objset. The range of object numbers
include/sys/dsl_pool.h
+1
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@@ -96,6 +96,7 @@ typedef struct dsl_pool {
uint64_t dp_tmp_userrefs_obj;
bpobj_t dp_free_bpobj;
uint64_t dp_bptree_obj;
uint64_t dp_empty_bpobj;
struct dsl_scan *dp_scan;
include/sys/zap.h
+2
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@@ -300,6 +300,8 @@ int zap_increment_int(objset_t *os, uint64_t obj, uint64_t key, int64_t delta,
/* Here the key is an int and the value is a different int. */
int zap_add_int_key(objset_t *os, uint64_t obj,
uint64_t key, uint64_t value, dmu_tx_t *tx);
int zap_update_int_key(objset_t *os, uint64_t obj,
uint64_t key, uint64_t value, dmu_tx_t *tx);
int zap_lookup_int_key(objset_t *os, uint64_t obj,
uint64_t key, uint64_t *valuep);