Author: avg
Date: Thu Aug 15 15:27:58 2019
New Revision: 351077
URL: https://svnweb.freebsd.org/changeset/base/351077
Log:
Revert r351076 and r351074 because of atomic_swap_64 on 32-bit platforms
Trying to sort it out.
Modified:
head/cddl/contrib/opensolaris/cmd/zdb/zdb.c
head/cddl/contrib/opensolaris/cmd/zdb/zdb_il.c
head/cddl/contrib/opensolaris/cmd/zstreamdump/zstreamdump.c
head/cddl/contrib/opensolaris/cmd/ztest/ztest.c
head/sys/cddl/contrib/opensolaris/common/zfs/zfs_prop.c
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_object.c
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_objset.c
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_tx.c
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dnode.c
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dnode_sync.c
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sa.c
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa_misc.c
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dmu.h
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dmu_objset.h
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dnode.h
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/sa_impl.h
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zap.h
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zfs_context.h
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zfs_ioctl.h
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zil.h
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zap.c
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zap_micro.c
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_acl.c
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_replay.c
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zil.c
Directory Properties:
head/cddl/contrib/opensolaris/ (props changed)
head/cddl/contrib/opensolaris/cmd/zdb/ (props changed)
head/sys/cddl/contrib/opensolaris/ (props changed)
Modified: head/cddl/contrib/opensolaris/cmd/zdb/zdb.c
==============================================================================
--- head/cddl/contrib/opensolaris/cmd/zdb/zdb.c Thu Aug 15 15:11:20 2019
(r351076)
+++ head/cddl/contrib/opensolaris/cmd/zdb/zdb.c Thu Aug 15 15:27:58 2019
(r351077)
@@ -2134,8 +2134,7 @@ static object_viewer_t *object_viewer[DMU_OT_NUMTYPES
};
static void
-dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header,
- uint64_t *dnode_slots_used)
+dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
{
dmu_buf_t *db = NULL;
dmu_object_info_t doi;
@@ -2155,7 +2154,7 @@ dump_object(objset_t *os, uint64_t object, int verbosi
CTASSERT(sizeof (bonus_size) >= NN_NUMBUF_SZ);
if (*print_header) {
- (void) printf("\n%10s %3s %5s %5s %5s %6s %5s %6s %s\n",
+ (void) printf("\n%10s %3s %5s %5s %5s %6s %5s %6s %s\n",
"Object", "lvl", "iblk", "dblk", "dsize", "dnsize",
"lsize", "%full", "type");
*print_header = 0;
@@ -2174,9 +2173,6 @@ dump_object(objset_t *os, uint64_t object, int verbosi
}
dmu_object_info_from_dnode(dn, &doi);
- if (dnode_slots_used != NULL)
- *dnode_slots_used = doi.doi_dnodesize / DNODE_MIN_SIZE;
-
zdb_nicenum(doi.doi_metadata_block_size, iblk, sizeof (iblk));
zdb_nicenum(doi.doi_data_block_size, dblk, sizeof (dblk));
zdb_nicenum(doi.doi_max_offset, lsize, sizeof (lsize));
@@ -2199,9 +2195,8 @@ dump_object(objset_t *os, uint64_t object, int verbosi
ZDB_COMPRESS_NAME(doi.doi_compress));
}
- (void) printf("%10" PRIu64
- " %3u %5s %5s %5s %5s %5s %6s %s%s\n",
- object, doi.doi_indirection, iblk, dblk,
+ (void) printf("%10lld %3u %5s %5s %5s %6s %5s %6s %s%s\n",
+ (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
asize, dnsize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
@@ -2310,9 +2305,6 @@ dump_dir(objset_t *os)
int print_header = 1;
unsigned i;
int error;
- uint64_t total_slots_used = 0;
- uint64_t max_slot_used = 0;
- uint64_t dnode_slots;
/* make sure nicenum has enough space */
CTASSERT(sizeof (numbuf) >= NN_NUMBUF_SZ);
@@ -2357,7 +2349,7 @@ dump_dir(objset_t *os)
if (zopt_objects != 0) {
for (i = 0; i < zopt_objects; i++)
dump_object(os, zopt_object[i], verbosity,
- &print_header, NULL);
+ &print_header);
(void) printf("\n");
return;
}
@@ -2382,37 +2374,22 @@ dump_dir(objset_t *os)
if (BP_IS_HOLE(os->os_rootbp))
return;
- dump_object(os, 0, verbosity, &print_header, NULL);
+ dump_object(os, 0, verbosity, &print_header);
object_count = 0;
if (DMU_USERUSED_DNODE(os) != NULL &&
DMU_USERUSED_DNODE(os)->dn_type != 0) {
- dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header,
- NULL);
- dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header,
- NULL);
+ dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
+ dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
}
object = 0;
while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
- dump_object(os, object, verbosity, &print_header, &dnode_slots);
+ dump_object(os, object, verbosity, &print_header);
object_count++;
- total_slots_used += dnode_slots;
- max_slot_used = object + dnode_slots - 1;
}
(void) printf("\n");
- (void) printf(" Dnode slots:\n");
- (void) printf("\tTotal used: %10llu\n",
- (u_longlong_t)total_slots_used);
- (void) printf("\tMax used: %10llu\n",
- (u_longlong_t)max_slot_used);
- (void) printf("\tPercent empty: %10lf\n",
- (double)(max_slot_used - total_slots_used)*100 /
- (double)max_slot_used);
-
- (void) printf("\n");
-
if (error != ESRCH) {
(void) fprintf(stderr, "dmu_object_next() = %d\n", error);
abort();
@@ -2604,7 +2581,7 @@ dump_path_impl(objset_t *os, uint64_t obj, char *name)
return (dump_path_impl(os, child_obj, s + 1));
/*FALLTHROUGH*/
case DMU_OT_PLAIN_FILE_CONTENTS:
- dump_object(os, child_obj, dump_opt['v'], &header, NULL);
+ dump_object(os, child_obj, dump_opt['v'], &header);
return (0);
default:
(void) fprintf(stderr, "object %llu has non-file/directory "
Modified: head/cddl/contrib/opensolaris/cmd/zdb/zdb_il.c
==============================================================================
--- head/cddl/contrib/opensolaris/cmd/zdb/zdb_il.c Thu Aug 15 15:11:20
2019 (r351076)
+++ head/cddl/contrib/opensolaris/cmd/zdb/zdb_il.c Thu Aug 15 15:27:58
2019 (r351077)
@@ -84,15 +84,15 @@ zil_prt_rec_create(zilog_t *zilog, int txtype, void *a
}
(void) printf("%s%s", tab_prefix, ctime(&crtime));
- (void) printf("%sdoid %" PRIu64 ", foid %" PRIu64 ", slots %" PRIu64
- ", mode %" PRIo64 "\n",
- tab_prefix, lr->lr_doid,
- (uint64_t)LR_FOID_GET_OBJ(lr->lr_foid),
- (uint64_t)LR_FOID_GET_SLOTS(lr->lr_foid),
- lr->lr_mode);
- (void) printf("%suid %" PRIu64 ", gid %" PRIu64 ", gen %" PRIu64
- ", rdev %#" PRIx64 "\n",
- tab_prefix, lr->lr_uid, lr->lr_gid, lr->lr_gen, lr->lr_rdev);
+ (void) printf("%sdoid %llu, foid %llu, slots %llu, mode %llo\n",
tab_prefix,
+ (u_longlong_t)lr->lr_doid,
+ (u_longlong_t)LR_FOID_GET_OBJ(lr->lr_foid),
+ (u_longlong_t)LR_FOID_GET_SLOTS(lr->lr_foid),
+ (longlong_t)lr->lr_mode);
+ (void) printf("%suid %llu, gid %llu, gen %llu, rdev 0x%llx\n",
+ tab_prefix,
+ (u_longlong_t)lr->lr_uid, (u_longlong_t)lr->lr_gid,
+ (u_longlong_t)lr->lr_gen, (u_longlong_t)lr->lr_rdev);
}
/* ARGSUSED */
Modified: head/cddl/contrib/opensolaris/cmd/zstreamdump/zstreamdump.c
==============================================================================
--- head/cddl/contrib/opensolaris/cmd/zstreamdump/zstreamdump.c Thu Aug 15
15:11:20 2019 (r351076)
+++ head/cddl/contrib/opensolaris/cmd/zstreamdump/zstreamdump.c Thu Aug 15
15:27:58 2019 (r351077)
@@ -416,15 +416,13 @@ main(int argc, char *argv[])
drro->drr_toguid = BSWAP_64(drro->drr_toguid);
}
if (verbose) {
- (void) printf("OBJECT object = %" PRIu64
- " type = %u bonustype = %u blksz = %u"
- " bonuslen = %u dn_slots = %u\n",
- drro->drr_object,
+ (void) printf("OBJECT object = %llu type = %u "
+ "bonustype = %u blksz = %u bonuslen = %u\n",
+ (u_longlong_t)drro->drr_object,
drro->drr_type,
drro->drr_bonustype,
drro->drr_blksz,
- drro->drr_bonuslen,
- drro->drr_dn_slots);
+ drro->drr_bonuslen);
}
if (drro->drr_bonuslen > 0) {
(void) ssread(buf,
Modified: head/cddl/contrib/opensolaris/cmd/ztest/ztest.c
==============================================================================
--- head/cddl/contrib/opensolaris/cmd/ztest/ztest.c Thu Aug 15 15:11:20
2019 (r351076)
+++ head/cddl/contrib/opensolaris/cmd/ztest/ztest.c Thu Aug 15 15:27:58
2019 (r351077)
@@ -196,7 +196,6 @@ extern uint64_t zfs_deadman_synctime_ms;
extern int metaslab_preload_limit;
extern boolean_t zfs_compressed_arc_enabled;
extern boolean_t zfs_abd_scatter_enabled;
-extern int dmu_object_alloc_chunk_shift;
extern boolean_t zfs_force_some_double_word_sm_entries;
static ztest_shared_opts_t *ztest_shared_opts;
@@ -323,7 +322,6 @@ static ztest_shared_callstate_t *ztest_shared_callstat
ztest_func_t ztest_dmu_read_write;
ztest_func_t ztest_dmu_write_parallel;
ztest_func_t ztest_dmu_object_alloc_free;
-ztest_func_t ztest_dmu_object_next_chunk;
ztest_func_t ztest_dmu_commit_callbacks;
ztest_func_t ztest_zap;
ztest_func_t ztest_zap_parallel;
@@ -365,7 +363,6 @@ ztest_info_t ztest_info[] = {
{ ztest_dmu_read_write, 1, &zopt_always },
{ ztest_dmu_write_parallel, 10, &zopt_always },
{ ztest_dmu_object_alloc_free, 1, &zopt_always },
- { ztest_dmu_object_next_chunk, 1, &zopt_sometimes },
{ ztest_dmu_commit_callbacks, 1, &zopt_always },
{ ztest_zap, 30, &zopt_always },
{ ztest_zap_parallel, 100, &zopt_always },
@@ -1369,7 +1366,7 @@ ztest_bt_bonus(dmu_buf_t *db)
* it unique to the object, generation, and offset to verify that data
* is not getting overwritten by data from other dnodes.
*/
-#define ZTEST_BONUS_FILL_TOKEN(obj, ds, gen, offset) \
+#define ZTEST_BONUS_FILL_TOKEN(obj, ds, gen, offset) \
(((ds) << 48) | ((gen) << 32) | ((obj) << 8) | (offset))
/*
@@ -1898,7 +1895,6 @@ ztest_replay_setattr(void *arg1, void *arg2, boolean_t
ztest_bt_generate(bbt, os, lr->lr_foid, dnodesize, -1ULL, lr->lr_mode,
txg, crtxg);
ztest_fill_unused_bonus(db, bbt, lr->lr_foid, os, bbt->bt_gen);
-
dmu_buf_rele(db, FTAG);
(void) ztest_log_setattr(zd, tx, lr);
@@ -3819,10 +3815,8 @@ ztest_dmu_object_alloc_free(ztest_ds_t *zd, uint64_t i
ztest_od_t od[4];
int batchsize = sizeof (od) / sizeof (od[0]);
- for (int b = 0; b < batchsize; b++) {
- ztest_od_init(&od[b], id, FTAG, b, DMU_OT_UINT64_OTHER,
- 0, 0, 0);
- }
+ for (int b = 0; b < batchsize; b++)
+ ztest_od_init(&od[b], id, FTAG, b, DMU_OT_UINT64_OTHER, 0, 0,
0);
/*
* Destroy the previous batch of objects, create a new batch,
@@ -3837,26 +3831,6 @@ ztest_dmu_object_alloc_free(ztest_ds_t *zd, uint64_t i
}
/*
- * Rewind the global allocator to verify object allocation backfilling.
- */
-void
-ztest_dmu_object_next_chunk(ztest_ds_t *zd, uint64_t id)
-{
- objset_t *os = zd->zd_os;
- int dnodes_per_chunk = 1 << dmu_object_alloc_chunk_shift;
- uint64_t object;
-
- /*
- * Rewind the global allocator randomly back to a lower object number
- * to force backfilling and reclamation of recently freed dnodes.
- */
- mutex_enter(&os->os_obj_lock);
- object = ztest_random(os->os_obj_next_chunk);
- os->os_obj_next_chunk = P2ALIGN(object, dnodes_per_chunk);
- mutex_exit(&os->os_obj_lock);
-}
-
-/*
* Verify that dmu_{read,write} work as expected.
*/
void
@@ -3902,10 +3876,8 @@ ztest_dmu_read_write(ztest_ds_t *zd, uint64_t id)
/*
* Read the directory info. If it's the first time, set things up.
*/
- ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0,
- chunksize);
- ztest_od_init(&od[1], id, FTAG, 1, DMU_OT_UINT64_OTHER, 0, 0,
- chunksize);
+ ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0,
chunksize);
+ ztest_od_init(&od[1], id, FTAG, 1, DMU_OT_UINT64_OTHER, 0, 0,
chunksize);
if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
return;
@@ -4174,10 +4146,8 @@ ztest_dmu_read_write_zcopy(ztest_ds_t *zd, uint64_t id
/*
* Read the directory info. If it's the first time, set things up.
*/
- ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize,
- 0, 0);
- ztest_od_init(&od[1], id, FTAG, 1, DMU_OT_UINT64_OTHER, 0, 0,
- chunksize);
+ ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize, 0,
0);
+ ztest_od_init(&od[1], id, FTAG, 1, DMU_OT_UINT64_OTHER, 0, 0,
chunksize);
if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
return;
@@ -4377,8 +4347,7 @@ ztest_dmu_write_parallel(ztest_ds_t *zd, uint64_t id)
* to verify that parallel writes to an object -- even to the
* same blocks within the object -- doesn't cause any trouble.
*/
- ztest_od_init(&od[0], ID_PARALLEL, FTAG, 0, DMU_OT_UINT64_OTHER,
- 0, 0, 0);
+ ztest_od_init(&od[0], ID_PARALLEL, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0,
0);
if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
return;
@@ -4397,8 +4366,7 @@ ztest_dmu_prealloc(ztest_ds_t *zd, uint64_t id)
uint64_t blocksize = ztest_random_blocksize();
void *data;
- ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize,
- 0, 0);
+ ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize, 0,
0);
if (ztest_object_init(zd, od, sizeof (od), !ztest_random(2)) != 0)
return;
@@ -4622,8 +4590,7 @@ ztest_zap_parallel(ztest_ds_t *zd, uint64_t id)
char name[20], string_value[20];
void *data;
- ztest_od_init(&od[0], ID_PARALLEL, FTAG, micro, DMU_OT_ZAP_OTHER,
- 0, 0, 0);
+ ztest_od_init(&od[0], ID_PARALLEL, FTAG, micro, DMU_OT_ZAP_OTHER, 0, 0,
0);
if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
return;
@@ -5444,8 +5411,7 @@ ztest_ddt_repair(ztest_ds_t *zd, uint64_t id)
blocksize = ztest_random_blocksize();
blocksize = MIN(blocksize, 2048); /* because we write so many */
- ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize,
- 0, 0);
+ ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize, 0,
0);
if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
return;
Modified: head/sys/cddl/contrib/opensolaris/common/zfs/zfs_prop.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/common/zfs/zfs_prop.c Thu Aug 15
15:11:20 2019 (r351076)
+++ head/sys/cddl/contrib/opensolaris/common/zfs/zfs_prop.c Thu Aug 15
15:27:58 2019 (r351077)
@@ -292,11 +292,10 @@ zfs_prop_init(void)
ZFS_VOLMODE_DEFAULT, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME,
"default | geom | dev | none", "VOLMODE", volmode_table);
-
zprop_register_index(ZFS_PROP_DNODESIZE, "dnodesize",
ZFS_DNSIZE_LEGACY, PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
"legacy | auto | 1k | 2k | 4k | 8k | 16k", "DNSIZE", dnsize_table);
-
+
/* inherit index (boolean) properties */
zprop_register_index(ZFS_PROP_ATIME, "atime", 1, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM, "on | off", "ATIME", boolean_table);
Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c Thu Aug 15
15:11:20 2019 (r351076)
+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c Thu Aug 15
15:27:58 2019 (r351077)
@@ -3757,8 +3757,7 @@ dbuf_write_ready(zio_t *zio, arc_buf_t *buf, void *vdb
if (dn->dn_type == DMU_OT_DNODE) {
i = 0;
while (i < db->db.db_size) {
- dnode_phys_t *dnp =
- (void *)(((char *)db->db.db_data) + i);
+ dnode_phys_t *dnp = db->db.db_data + i;
i += DNODE_MIN_SIZE;
if (dnp->dn_type != DMU_OT_NONE) {
Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_object.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_object.c Thu Aug
15 15:11:20 2019 (r351076)
+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_object.c Thu Aug
15 15:27:58 2019 (r351077)
@@ -32,14 +32,6 @@
#include <sys/zfeature.h>
#include <sys/dsl_dataset.h>
-/*
- * Each of the concurrent object allocators will grab
- * 2^dmu_object_alloc_chunk_shift dnode slots at a time. The default is to
- * grab 128 slots, which is 4 blocks worth. This was experimentally
- * determined to be the lowest value that eliminates the measurable effect
- * of lock contention from this code path.
- */
-int dmu_object_alloc_chunk_shift = 7;
static uint64_t
dmu_object_alloc_impl(objset_t *os, dmu_object_type_t ot, int blocksize,
@@ -52,10 +44,6 @@ dmu_object_alloc_impl(objset_t *os, dmu_object_type_t
dnode_t *dn = NULL;
int dn_slots = dnodesize >> DNODE_SHIFT;
boolean_t restarted = B_FALSE;
- uint64_t *cpuobj = &os->os_obj_next_percpu[CPU_SEQID %
- os->os_obj_next_percpu_len];
- int dnodes_per_chunk = 1 << dmu_object_alloc_chunk_shift;
- int error;
if (dn_slots == 0) {
dn_slots = DNODE_MIN_SLOTS;
@@ -63,145 +51,93 @@ dmu_object_alloc_impl(objset_t *os, dmu_object_type_t
ASSERT3S(dn_slots, >=, DNODE_MIN_SLOTS);
ASSERT3S(dn_slots, <=, DNODE_MAX_SLOTS);
}
-
- /*
- * The "chunk" of dnodes that is assigned to a CPU-specific
- * allocator needs to be at least one block's worth, to avoid
- * lock contention on the dbuf. It can be at most one L1 block's
- * worth, so that the "rescan after polishing off a L1's worth"
- * logic below will be sure to kick in.
- */
- if (dnodes_per_chunk < DNODES_PER_BLOCK)
- dnodes_per_chunk = DNODES_PER_BLOCK;
- if (dnodes_per_chunk > L1_dnode_count)
- dnodes_per_chunk = L1_dnode_count;
-
- object = *cpuobj;
-
+
+ mutex_enter(&os->os_obj_lock);
for (;;) {
+ object = os->os_obj_next;
/*
- * If we finished a chunk of dnodes, get a new one from
- * the global allocator.
+ * Each time we polish off a L1 bp worth of dnodes (2^12
+ * objects), move to another L1 bp that's still
+ * reasonably sparse (at most 1/4 full). Look from the
+ * beginning at most once per txg. If we still can't
+ * allocate from that L1 block, search for an empty L0
+ * block, which will quickly skip to the end of the
+ * metadnode if the no nearby L0 blocks are empty. This
+ * fallback avoids a pathology where full dnode blocks
+ * containing large dnodes appear sparse because they
+ * have a low blk_fill, leading to many failed
+ * allocation attempts. In the long term a better
+ * mechanism to search for sparse metadnode regions,
+ * such as spacemaps, could be implemented.
+ *
+ * os_scan_dnodes is set during txg sync if enough objects
+ * have been freed since the previous rescan to justify
+ * backfilling again.
+ *
+ * Note that dmu_traverse depends on the behavior that we use
+ * multiple blocks of the dnode object before going back to
+ * reuse objects. Any change to this algorithm should preserve
+ * that property or find another solution to the issues
+ * described in traverse_visitbp.
*/
- if ((P2PHASE(object, dnodes_per_chunk) == 0) ||
- (P2PHASE(object + dn_slots - 1, dnodes_per_chunk) <
- dn_slots)) {
- DNODE_STAT_BUMP(dnode_alloc_next_chunk);
- mutex_enter(&os->os_obj_lock);
- ASSERT0(P2PHASE(os->os_obj_next_chunk,
- dnodes_per_chunk));
- object = os->os_obj_next_chunk;
-
- /*
- * Each time we polish off a L1 bp worth of dnodes
- * (2^12 objects), move to another L1 bp that's
- * still reasonably sparse (at most 1/4 full). Look
- * from the beginning at most once per txg. If we
- * still can't allocate from that L1 block, search
- * for an empty L0 block, which will quickly skip
- * to the end of the metadnode if the no nearby L0
- * blocks are empty. This fallback avoids a
- * pathology where full dnode blocks containing
- * large dnodes appear sparse because they have a
- * low blk_fill, leading to many failed allocation
- * attempts. In the long term a better mechanism to
- * search for sparse metadnode regions, such as
- * spacemaps, could be implemented.
- *
- * os_scan_dnodes is set during txg sync if enough
- * objects have been freed since the previous
- * rescan to justify backfilling again.
- *
- * Note that dmu_traverse depends on the behavior
- * that we use multiple blocks of the dnode object
- * before going back to reuse objects. Any change
- * to this algorithm should preserve that property
- * or find another solution to the issues described
- * in traverse_visitbp.
- */
- if (P2PHASE(object, L1_dnode_count) == 0) {
- uint64_t offset;
- uint64_t blkfill;
- int minlvl;
- if (os->os_rescan_dnodes) {
- offset = 0;
- os->os_rescan_dnodes = B_FALSE;
- } else {
- offset = object << DNODE_SHIFT;
- }
- blkfill = restarted ? 1 : DNODES_PER_BLOCK >> 2;
- minlvl = restarted ? 1 : 2;
- restarted = B_TRUE;
- error = dnode_next_offset(DMU_META_DNODE(os),
- DNODE_FIND_HOLE, &offset, minlvl,
- blkfill, 0);
- if (error == 0) {
- object = offset >> DNODE_SHIFT;
- }
+ if (P2PHASE(object, L1_dnode_count) == 0) {
+ uint64_t offset;
+ uint64_t blkfill;
+ int minlvl;
+ int error;
+ if (os->os_rescan_dnodes) {
+ offset = 0;
+ os->os_rescan_dnodes = B_FALSE;
+ } else {
+ offset = object << DNODE_SHIFT;
}
- /*
- * Note: if "restarted", we may find a L0 that
- * is not suitably aligned.
- */
- os->os_obj_next_chunk =
- P2ALIGN(object, dnodes_per_chunk) +
- dnodes_per_chunk;
- (void) atomic_swap_64(cpuobj, object);
- mutex_exit(&os->os_obj_lock);
+ blkfill = restarted ? 1 : DNODES_PER_BLOCK >> 2;
+ minlvl = restarted ? 1 : 2;
+ restarted = B_TRUE;
+ error = dnode_next_offset(DMU_META_DNODE(os),
+ DNODE_FIND_HOLE, &offset, minlvl, blkfill, 0);
+ if (error == 0)
+ object = offset >> DNODE_SHIFT;
}
+ os->os_obj_next = object + dn_slots;
/*
- * The value of (*cpuobj) before adding dn_slots is the object
- * ID assigned to us. The value afterwards is the object ID
- * assigned to whoever wants to do an allocation next.
- */
- object = atomic_add_64_nv(cpuobj, dn_slots) - dn_slots;
-
- /*
* XXX We should check for an i/o error here and return
* up to our caller. Actually we should pre-read it in
* dmu_tx_assign(), but there is currently no mechanism
* to do so.
*/
- error = dnode_hold_impl(os, object, DNODE_MUST_BE_FREE,
- dn_slots, FTAG, &dn);
- if (error == 0) {
- rw_enter(&dn->dn_struct_rwlock, RW_WRITER);
+ (void) dnode_hold_impl(os, object, DNODE_MUST_BE_FREE, dn_slots,
+ FTAG, &dn);
+ if (dn)
+ break;
+
+ if (dmu_object_next(os, &object, B_TRUE, 0) == 0)
+ os->os_obj_next = object;
+ else
/*
- * Another thread could have allocated it; check
- * again now that we have the struct lock.
+ * Skip to next known valid starting point for a dnode.
*/
- if (dn->dn_type == DMU_OT_NONE) {
- dnode_allocate(dn, ot, blocksize, 0,
- bonustype, bonuslen, dn_slots, tx);
- rw_exit(&dn->dn_struct_rwlock);
- dmu_tx_add_new_object(tx, dn);
- dnode_rele(dn, FTAG);
- return (object);
- }
- rw_exit(&dn->dn_struct_rwlock);
- dnode_rele(dn, FTAG);
- DNODE_STAT_BUMP(dnode_alloc_race);
- }
-
- /*
- * Skip to next known valid starting point on error. This
- * is the start of the next block of dnodes.
- */
- if (dmu_object_next(os, &object, B_TRUE, 0) != 0) {
- object = P2ROUNDUP(object + 1, DNODES_PER_BLOCK);
- DNODE_STAT_BUMP(dnode_alloc_next_block);
- }
- (void) atomic_swap_64(cpuobj, object);
+ os->os_obj_next = P2ROUNDUP(object + 1,
+ DNODES_PER_BLOCK);
}
+
+ dnode_allocate(dn, ot, blocksize, indirect_blockshift,
+ bonustype, bonuslen, dn_slots, tx);
+ mutex_exit(&os->os_obj_lock);
+
+ dmu_tx_add_new_object(tx, dn);
+ dnode_rele(dn, FTAG);
+
+ return (object);
}
uint64_t
dmu_object_alloc(objset_t *os, dmu_object_type_t ot, int blocksize,
dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx)
{
- return (dmu_object_alloc_impl(os, ot, blocksize, 0, bonustype,
- bonuslen, 0, tx));
+ return dmu_object_alloc_impl(os, ot, blocksize, 0, bonustype,
+ bonuslen, 0, tx);
}
uint64_t
@@ -209,8 +145,8 @@ dmu_object_alloc_ibs(objset_t *os, dmu_object_type_t o
int indirect_blockshift, dmu_object_type_t bonustype, int bonuslen,
dmu_tx_t *tx)
{
- return (dmu_object_alloc_impl(os, ot, blocksize, indirect_blockshift,
- bonustype, bonuslen, 0, tx));
+ return dmu_object_alloc_impl(os, ot, blocksize, indirect_blockshift,
+ bonustype, bonuslen, 0, tx);
}
uint64_t
@@ -242,7 +178,7 @@ dmu_object_claim_dnsize(objset_t *os, uint64_t object,
dn_slots = DNODE_MIN_SLOTS;
ASSERT3S(dn_slots, >=, DNODE_MIN_SLOTS);
ASSERT3S(dn_slots, <=, DNODE_MAX_SLOTS);
-
+
if (object == DMU_META_DNODE_OBJECT && !dmu_tx_private_ok(tx))
return (SET_ERROR(EBADF));
@@ -275,9 +211,6 @@ dmu_object_reclaim_dnsize(objset_t *os, uint64_t objec
int dn_slots = dnodesize >> DNODE_SHIFT;
int err;
- if (dn_slots == 0)
- dn_slots = DNODE_MIN_SLOTS;
-
if (object == DMU_META_DNODE_OBJECT)
return (SET_ERROR(EBADF));
@@ -327,52 +260,28 @@ int
dmu_object_next(objset_t *os, uint64_t *objectp, boolean_t hole, uint64_t txg)
{
uint64_t offset;
- uint64_t start_obj;
+ dmu_object_info_t doi;
struct dsl_dataset *ds = os->os_dsl_dataset;
+ int dnodesize;
int error;
- if (*objectp == 0) {
- start_obj = 1;
- } else if (ds && ds->ds_feature_inuse[SPA_FEATURE_LARGE_DNODE]) {
- uint64_t i = *objectp + 1;
- uint64_t last_obj = *objectp | (DNODES_PER_BLOCK - 1);
- dmu_object_info_t doi;
-
- /*
- * Scan through the remaining meta dnode block. The contents
- * of each slot in the block are known so it can be quickly
- * checked. If the block is exhausted without a match then
- * hand off to dnode_next_offset() for further scanning.
- */
- while (i <= last_obj) {
- error = dmu_object_info(os, i, &doi);
- if (error == ENOENT) {
- if (hole) {
- *objectp = i;
- return (0);
- } else {
- i++;
- }
- } else if (error == EEXIST) {
- i++;
- } else if (error == 0) {
- if (hole) {
- i += doi.doi_dnodesize >> DNODE_SHIFT;
- } else {
- *objectp = i;
- return (0);
- }
- } else {
- return (error);
- }
- }
-
- start_obj = i;
+ /*
+ * Avoid expensive dnode hold if this dataset doesn't use large dnodes.
+ */
+ if (ds && ds->ds_feature_inuse[SPA_FEATURE_LARGE_DNODE]) {
+ error = dmu_object_info(os, *objectp, &doi);
+ if (error && !(error == EINVAL && *objectp == 0))
+ return (SET_ERROR(error));
+ else
+ dnodesize = doi.doi_dnodesize;
} else {
- start_obj = *objectp + 1;
+ dnodesize = DNODE_MIN_SIZE;
}
- offset = start_obj << DNODE_SHIFT;
+ if (*objectp == 0)
+ offset = 1 << DNODE_SHIFT;
+ else
+ offset = (*objectp << DNODE_SHIFT) + dnodesize;
error = dnode_next_offset(DMU_META_DNODE(os),
(hole ? DNODE_FIND_HOLE : 0), &offset, 0, DNODES_PER_BLOCK, txg);
Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_objset.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_objset.c Thu Aug
15 15:11:20 2019 (r351076)
+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_objset.c Thu Aug
15 15:27:58 2019 (r351077)
@@ -566,9 +566,6 @@ dmu_objset_open_impl(spa_t *spa, dsl_dataset_t *ds, bl
mutex_init(&os->os_userused_lock, NULL, MUTEX_DEFAULT, NULL);
mutex_init(&os->os_obj_lock, NULL, MUTEX_DEFAULT, NULL);
mutex_init(&os->os_user_ptr_lock, NULL, MUTEX_DEFAULT, NULL);
- os->os_obj_next_percpu_len = boot_ncpus;
- os->os_obj_next_percpu = kmem_zalloc(os->os_obj_next_percpu_len *
- sizeof (os->os_obj_next_percpu[0]), KM_SLEEP);
dnode_special_open(os, &os->os_phys->os_meta_dnode,
DMU_META_DNODE_OBJECT, &os->os_meta_dnode);
@@ -846,9 +843,6 @@ dmu_objset_evict_done(objset_t *os)
*/
rw_enter(&os_lock, RW_READER);
rw_exit(&os_lock);
-
- kmem_free(os->os_obj_next_percpu,
- os->os_obj_next_percpu_len * sizeof (os->os_obj_next_percpu[0]));
mutex_destroy(&os->os_lock);
mutex_destroy(&os->os_userused_lock);
Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c Thu Aug
15 15:11:20 2019 (r351076)
+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c Thu Aug
15 15:27:58 2019 (r351077)
@@ -1437,12 +1437,17 @@ dmu_recv_begin_check(void *arg, dmu_tx_t *tx)
/*
* The receiving code doesn't know how to translate large blocks
* to smaller ones, so the pool must have the LARGE_BLOCKS
- * feature enabled if the stream has LARGE_BLOCKS. Same with
- * large dnodes.
+ * feature enabled if the stream has LARGE_BLOCKS.
*/
if ((featureflags & DMU_BACKUP_FEATURE_LARGE_BLOCKS) &&
!spa_feature_is_enabled(dp->dp_spa, SPA_FEATURE_LARGE_BLOCKS))
return (SET_ERROR(ENOTSUP));
+
+ /*
+ * The receiving code doesn't know how to translate large dnodes
+ * to smaller ones, so the pool must have the LARGE_DNODE
+ * feature enabled if the stream has LARGE_DNODE.
+ */
if ((featureflags & DMU_BACKUP_FEATURE_LARGE_DNODE) &&
!spa_feature_is_enabled(dp->dp_spa, SPA_FEATURE_LARGE_DNODE))
return (SET_ERROR(ENOTSUP));
@@ -1650,9 +1655,6 @@ dmu_recv_resume_begin_check(void *arg, dmu_tx_t *tx)
dsl_dataset_t *ds;
const char *tofs = drba->drba_cookie->drc_tofs;
- /* 6 extra bytes for /%recv */
- char recvname[ZFS_MAX_DATASET_NAME_LEN + 6];
-
/* already checked */
ASSERT3U(drrb->drr_magic, ==, DMU_BACKUP_MAGIC);
ASSERT(featureflags & DMU_BACKUP_FEATURE_RESUMING);
@@ -1680,18 +1682,8 @@ dmu_recv_resume_begin_check(void *arg, dmu_tx_t *tx)
!spa_feature_is_enabled(dp->dp_spa, SPA_FEATURE_LZ4_COMPRESS))
return (SET_ERROR(ENOTSUP));
- /*
- * The receiving code doesn't know how to translate large blocks
- * to smaller ones, so the pool must have the LARGE_BLOCKS
- * feature enabled if the stream has LARGE_BLOCKS. Same with
- * large dnodes.
- */
- if ((featureflags & DMU_BACKUP_FEATURE_LARGE_BLOCKS) &&
- !spa_feature_is_enabled(dp->dp_spa, SPA_FEATURE_LARGE_BLOCKS))
- return (SET_ERROR(ENOTSUP));
- if ((featureflags & DMU_BACKUP_FEATURE_LARGE_DNODE) &&
- !spa_feature_is_enabled(dp->dp_spa, SPA_FEATURE_LARGE_DNODE))
- return (SET_ERROR(ENOTSUP));
+ /* 6 extra bytes for /%recv */
+ char recvname[ZFS_MAX_DATASET_NAME_LEN + 6];
(void) snprintf(recvname, sizeof (recvname), "%s/%s",
tofs, recv_clone_name);
@@ -2153,8 +2145,6 @@ receive_object(struct receive_writer_arg *rwa, struct
dmu_tx_t *tx;
uint64_t object;
int err;
- uint8_t dn_slots = drro->drr_dn_slots != 0 ?
- drro->drr_dn_slots : DNODE_MIN_SLOTS;
if (drro->drr_type == DMU_OT_NONE ||
!DMU_OT_IS_VALID(drro->drr_type) ||
@@ -2165,16 +2155,15 @@ receive_object(struct receive_writer_arg *rwa, struct
drro->drr_blksz < SPA_MINBLOCKSIZE ||
drro->drr_blksz > spa_maxblocksize(dmu_objset_spa(rwa->os)) ||
drro->drr_bonuslen >
- DN_BONUS_SIZE(spa_maxdnodesize(dmu_objset_spa(rwa->os))) ||
- dn_slots >
- (spa_maxdnodesize(dmu_objset_spa(rwa->os)) >> DNODE_SHIFT)) {
+ DN_BONUS_SIZE(spa_maxdnodesize(dmu_objset_spa(rwa->os)))) {
return (SET_ERROR(EINVAL));
}
err = dmu_object_info(rwa->os, drro->drr_object, &doi);
- if (err != 0 && err != ENOENT && err != EEXIST)
+ if (err != 0 && err != ENOENT)
return (SET_ERROR(EINVAL));
+ object = err == 0 ? drro->drr_object : DMU_NEW_OBJECT;
if (drro->drr_object > rwa->max_object)
rwa->max_object = drro->drr_object;
@@ -2187,66 +2176,18 @@ receive_object(struct receive_writer_arg *rwa, struct
if (err == 0) {
int nblkptr;
- object = drro->drr_object;
-
nblkptr = deduce_nblkptr(drro->drr_bonustype,
drro->drr_bonuslen);
if (drro->drr_blksz != doi.doi_data_block_size ||
- nblkptr < doi.doi_nblkptr ||
- dn_slots != doi.doi_dnodesize >> DNODE_SHIFT) {
+ nblkptr < doi.doi_nblkptr) {
err = dmu_free_long_range(rwa->os, drro->drr_object,
0, DMU_OBJECT_END);
if (err != 0)
return (SET_ERROR(EINVAL));
}
- } else if (err == EEXIST) {
- /*
- * The object requested is currently an interior slot of a
- * multi-slot dnode. This will be resolved when the next txg
- * is synced out, since the send stream will have told us
- * to free this slot when we freed the associated dnode
- * earlier in the stream.
- */
- txg_wait_synced(dmu_objset_pool(rwa->os), 0);
- object = drro->drr_object;
- } else {
- /* object is free and we are about to allocate a new one */
- object = DMU_NEW_OBJECT;
}
- /*
- * If this is a multi-slot dnode there is a chance that this
- * object will expand into a slot that is already used by
- * another object from the previous snapshot. We must free
- * these objects before we attempt to allocate the new dnode.
- */
- if (dn_slots > 1) {
- boolean_t need_sync = B_FALSE;
-
- for (uint64_t slot = drro->drr_object + 1;
- slot < drro->drr_object + dn_slots;
- slot++) {
- dmu_object_info_t slot_doi;
-
- err = dmu_object_info(rwa->os, slot, &slot_doi);
- if (err == ENOENT || err == EEXIST)
- continue;
- else if (err != 0)
- return (err);
-
- err = dmu_free_long_object(rwa->os, slot);
-
- if (err != 0)
- return (err);
-
- need_sync = B_TRUE;
- }
-
- if (need_sync)
- txg_wait_synced(dmu_objset_pool(rwa->os), 0);
- }
-
tx = dmu_tx_create(rwa->os);
dmu_tx_hold_bonus(tx, object);
err = dmu_tx_assign(tx, TXG_WAIT);
@@ -2260,7 +2201,7 @@ receive_object(struct receive_writer_arg *rwa, struct
err = dmu_object_claim_dnsize(rwa->os, drro->drr_object,
drro->drr_type, drro->drr_blksz,
drro->drr_bonustype, drro->drr_bonuslen,
- dn_slots << DNODE_SHIFT, tx);
+ drro->drr_dn_slots << DNODE_SHIFT, tx);
} else if (drro->drr_type != doi.doi_type ||
drro->drr_blksz != doi.doi_data_block_size ||
drro->drr_bonustype != doi.doi_bonus_type ||
@@ -2318,10 +2259,10 @@ receive_freeobjects(struct receive_writer_arg *rwa,
dmu_object_info_t doi;
int err;
- err = dmu_object_info(rwa->os, obj, NULL);
+ err = dmu_object_info(rwa->os, obj, &doi);
if (err == ENOENT) {
obj++;
- continue;
+ continue;
} else if (err != 0) {
return (err);
}
Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_tx.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_tx.c Thu Aug
15 15:11:20 2019 (r351076)
+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_tx.c Thu Aug
15 15:27:58 2019 (r351077)
@@ -1252,13 +1252,11 @@ dmu_tx_sa_registration_hold(sa_os_t *sa, dmu_tx_t *tx)
void
dmu_tx_hold_spill(dmu_tx_t *tx, uint64_t object)
{
- dmu_tx_hold_t *txh;
+ dmu_tx_hold_t *txh = dmu_tx_hold_object_impl(tx,
+ tx->tx_objset, object, THT_SPILL, 0, 0);
- txh = dmu_tx_hold_object_impl(tx, tx->tx_objset, object,
- THT_SPILL, 0, 0);
- if (txh != NULL)
- (void) refcount_add_many(&txh->txh_space_towrite,
- SPA_OLD_MAXBLOCKSIZE, FTAG);
+ (void) refcount_add_many(&txh->txh_space_towrite,
+ SPA_OLD_MAXBLOCKSIZE, FTAG);
}
void
Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dnode.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dnode.c Thu Aug 15
15:11:20 2019 (r351076)
+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dnode.c Thu Aug 15
15:27:58 2019 (r351077)
@@ -40,41 +40,21 @@
#include <sys/dmu_zfetch.h>
#include <sys/range_tree.h>
-dnode_stats_t dnode_stats = {
- { "dnode_hold_dbuf_hold", KSTAT_DATA_UINT64 },
- { "dnode_hold_dbuf_read", KSTAT_DATA_UINT64 },
- { "dnode_hold_alloc_hits", KSTAT_DATA_UINT64 },
- { "dnode_hold_alloc_misses", KSTAT_DATA_UINT64 },
- { "dnode_hold_alloc_interior", KSTAT_DATA_UINT64 },
- { "dnode_hold_alloc_lock_retry", KSTAT_DATA_UINT64 },
- { "dnode_hold_alloc_lock_misses", KSTAT_DATA_UINT64 },
- { "dnode_hold_alloc_type_none", KSTAT_DATA_UINT64 },
- { "dnode_hold_free_hits", KSTAT_DATA_UINT64 },
- { "dnode_hold_free_misses", KSTAT_DATA_UINT64 },
- { "dnode_hold_free_lock_misses", KSTAT_DATA_UINT64 },
- { "dnode_hold_free_lock_retry", KSTAT_DATA_UINT64 },
- { "dnode_hold_free_overflow", KSTAT_DATA_UINT64 },
- { "dnode_hold_free_refcount", KSTAT_DATA_UINT64 },
- { "dnode_hold_free_txg", KSTAT_DATA_UINT64 },
- { "dnode_free_interior_lock_retry", KSTAT_DATA_UINT64 },
- { "dnode_allocate", KSTAT_DATA_UINT64 },
- { "dnode_reallocate", KSTAT_DATA_UINT64 },
- { "dnode_buf_evict", KSTAT_DATA_UINT64 },
- { "dnode_alloc_next_chunk", KSTAT_DATA_UINT64 },
- { "dnode_alloc_race", KSTAT_DATA_UINT64 },
- { "dnode_alloc_next_block", KSTAT_DATA_UINT64 },
- { "dnode_move_invalid", KSTAT_DATA_UINT64 },
- { "dnode_move_recheck1", KSTAT_DATA_UINT64 },
- { "dnode_move_recheck2", KSTAT_DATA_UINT64 },
- { "dnode_move_special", KSTAT_DATA_UINT64 },
- { "dnode_move_handle", KSTAT_DATA_UINT64 },
- { "dnode_move_rwlock", KSTAT_DATA_UINT64 },
- { "dnode_move_active", KSTAT_DATA_UINT64 },
-};
-
-static kstat_t *dnode_ksp;
static kmem_cache_t *dnode_cache;
+/*
+ * Define DNODE_STATS to turn on statistic gathering. By default, it is only
+ * turned on when DEBUG is also defined.
+ */
+#ifdef DEBUG
+#define DNODE_STATS
+#endif /* DEBUG */
+#ifdef DNODE_STATS
+#define DNODE_STAT_ADD(stat) ((stat)++)
+#else
+#define DNODE_STAT_ADD(stat) /* nothing */
+#endif /* DNODE_STATS */
+
static dnode_phys_t dnode_phys_zero;
int zfs_default_bs = SPA_MINBLOCKSHIFT;
@@ -235,25 +215,12 @@ dnode_init(void)
0, dnode_cons, dnode_dest, NULL, NULL, NULL, 0);
#ifdef _KERNEL
kmem_cache_set_move(dnode_cache, dnode_move);
-
- dnode_ksp = kstat_create("zfs", 0, "dnodestats", "misc",
- KSTAT_TYPE_NAMED, sizeof (dnode_stats) / sizeof (kstat_named_t),
- KSTAT_FLAG_VIRTUAL);
- if (dnode_ksp != NULL) {
- dnode_ksp->ks_data = &dnode_stats;
- kstat_install(dnode_ksp);
- }
#endif /* _KERNEL */
}
void
dnode_fini(void)
{
- if (dnode_ksp != NULL) {
- kstat_delete(dnode_ksp);
- dnode_ksp = NULL;
- }
-
kmem_cache_destroy(dnode_cache);
dnode_cache = NULL;
}
@@ -366,7 +333,6 @@ dnode_byteswap(dnode_phys_t *dnp)
/* Swap SPILL block if we have one */
if (dnp->dn_flags & DNODE_FLAG_SPILL_BLKPTR)
byteswap_uint64_array(DN_SPILL_BLKPTR(dnp), sizeof (blkptr_t));
-
}
void
@@ -378,7 +344,7 @@ dnode_buf_byteswap(void *vbuf, size_t size)
ASSERT((size & (sizeof (dnode_phys_t)-1)) == 0);
while (i < size) {
- dnode_phys_t *dnp = (void *)(((char *)vbuf) + i);
+ dnode_phys_t *dnp = vbuf + i;
dnode_byteswap(dnp);
i += DNODE_MIN_SIZE;
@@ -482,10 +448,14 @@ dnode_create(objset_t *os, dnode_phys_t *dnp, dmu_buf_
dmu_zfetch_init(&dn->dn_zfetch, dn);
ASSERT(DMU_OT_IS_VALID(dn->dn_phys->dn_type));
- ASSERT(zrl_is_locked(&dnh->dnh_zrlock));
- ASSERT(!DN_SLOT_IS_PTR(dnh->dnh_dnode));
mutex_enter(&os->os_lock);
+ if (dnh->dnh_dnode != NULL) {
*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
_______________________________________________
svn-src-all@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/svn-src-all
To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
