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8423 8199 7432 Implement large_dnode pool feature

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8423 Implement large_dnode pool feature
8199 multi-threaded dmu_object_alloc()
7432 Large dnode pool feature

llumos/illumos-gate@54811da5ac
54811da5ac
https://www.illumos.org/issues/8423
https://www.illumos.org/issues/8199
https://www.illumos.org/issues/7432

  ZoL issues:
  Improved dnode allocation #6564
  Clean up large dnode code #6262
  Fix dnode_hold() freeing dnode behavior #8172
  Fix dnode allocation race #6414, #6439
  Partial: Raw sends must be able to decrease nlevels #6821, #6864
  Remove unnecessary txg syncs from receive_object() Closes #7197

Author: Toomas Soome <tsoome@me.com>
This commit is contained in:
Andriy Gapon 2019-08-12 12:05:40 +00:00
parent feaa27590c
commit 55f75bf072
43 changed files with 1741 additions and 393 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

56
cmd/zdb/zdb.c
View File

@ -2108,14 +2108,15 @@ static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
};
static void
dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header,
uint64_t *dnode_slots_used)
{
dmu_buf_t *db = NULL;
dmu_object_info_t doi;
dnode_t *dn;
void *bonus = NULL;
size_t bsize = 0;
char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
char iblk[32], dblk[32], lsize[32], asize[32], fill[32], dnsize[32];
char bonus_size[32];
char aux[50];
int error;
@ -2128,9 +2129,9 @@ dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
CTASSERT(sizeof (bonus_size) >= NN_NUMBUF_SZ);
if (*print_header) {
(void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
"Object", "lvl", "iblk", "dblk", "dsize", "lsize",
"%full", "type");
(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;
}
@ -2147,11 +2148,15 @@ dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
}
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));
zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize, sizeof (asize));
zdb_nicenum(doi.doi_bonus_size, bonus_size, sizeof (bonus_size));
zdb_nicenum(doi.doi_dnodesize, dnsize, sizeof (dnsize));
(void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
doi.doi_max_offset);
@ -2168,13 +2173,14 @@ dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
ZDB_COMPRESS_NAME(doi.doi_compress));
}
(void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
(u_longlong_t)object, doi.doi_indirection, iblk, dblk,
asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
(void) printf("%10" PRIu64
" %3u %5s %5s %5s %5s %5s %6s %s%s\n",
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) {
(void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
"", "", "", "", "", bonus_size, "bonus",
(void) printf("%10s %3s %5s %5s %5s %5s %5s %6s %s\n",
"", "", "", "", "", "", bonus_size, "bonus",
ZDB_OT_NAME(doi.doi_bonus_type));
}
@ -2278,6 +2284,9 @@ 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);
@ -2322,7 +2331,7 @@ 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);
&print_header, NULL);
(void) printf("\n");
return;
}
@ -2347,24 +2356,39 @@ dump_dir(objset_t *os)
if (BP_IS_HOLE(os->os_rootbp))
return;
dump_object(os, 0, verbosity, &print_header);
dump_object(os, 0, verbosity, &print_header, NULL);
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);
dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header,
NULL);
dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header,
NULL);
}
object = 0;
while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
dump_object(os, object, verbosity, &print_header);
dump_object(os, object, verbosity, &print_header, &dnode_slots);
object_count++;
total_slots_used += dnode_slots;
max_slot_used = object + dnode_slots - 1;
}
ASSERT3U(object_count, ==, usedobjs);
(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();
@ -2553,7 +2577,7 @@ 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);
dump_object(os, child_obj, dump_opt['v'], &header, NULL);
return (0);
default:
(void) fprintf(stderr, "object %llu has non-file/directory "

16
cmd/zdb/zdb_il.c
View File

@ -84,13 +84,15 @@ zil_prt_rec_create(zilog_t *zilog, int txtype, void *arg)
}
(void) printf("%s%s", tab_prefix, ctime(&crtime));
(void) printf("%sdoid %llu, foid %llu, mode %llo\n", tab_prefix,
(u_longlong_t)lr->lr_doid, (u_longlong_t)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);
(void) printf("%sdoid %" PRIu64 ", foid %" PRIu64 ", slots %" PRIu64
", mode %" PRIo64 "\n",
tab_prefix, lr->lr_doid,
LR_FOID_GET_OBJ(lr->lr_foid),
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);
}
/* ARGSUSED */

10
cmd/zstreamdump/zstreamdump.c
View File

@ -416,13 +416,15 @@ main(int argc, char *argv[])
drro->drr_toguid = BSWAP_64(drro->drr_toguid);
}
if (verbose) {
(void) printf("OBJECT object = %llu type = %u "
"bonustype = %u blksz = %u bonuslen = %u\n",
(u_longlong_t)drro->drr_object,
(void) printf("OBJECT object = %" PRIu64
" type = %u bonustype = %u blksz = %u"
" bonuslen = %u dn_slots = %u\n",
drro->drr_object,
drro->drr_type,
drro->drr_bonustype,
drro->drr_blksz,
drro->drr_bonuslen);
drro->drr_bonuslen,
drro->drr_dn_slots);
}
if (drro->drr_bonuslen > 0) {
(void) ssread(buf,

237
cmd/ztest/ztest.c
View File

@ -194,6 +194,7 @@ 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;
@ -224,6 +225,7 @@ typedef struct ztest_block_tag {
uint64_t bt_magic;
uint64_t bt_objset;
uint64_t bt_object;
uint64_t bt_dnodesize;
uint64_t bt_offset;
uint64_t bt_gen;
uint64_t bt_txg;
@ -274,6 +276,7 @@ typedef struct ztest_od {
dmu_object_type_t od_crtype;
uint64_t od_blocksize;
uint64_t od_crblocksize;
uint64_t od_crdnodesize;
uint64_t od_gen;
uint64_t od_crgen;
char od_name[ZFS_MAX_DATASET_NAME_LEN];
@ -320,6 +323,7 @@ static ztest_shared_callstate_t *ztest_shared_callstate;
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;
@ -349,6 +353,7 @@ ztest_func_t ztest_device_removal;
ztest_func_t ztest_remap_blocks;
ztest_func_t ztest_spa_checkpoint_create_discard;
ztest_func_t ztest_initialize;
ztest_func_t ztest_verify_dnode_bt;
uint64_t zopt_always = 0ULL * NANOSEC; /* all the time */
uint64_t zopt_incessant = 1ULL * NANOSEC / 10; /* every 1/10 second */
@ -360,6 +365,7 @@ 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 },
@ -392,7 +398,8 @@ ztest_info_t ztest_info[] = {
{ ztest_device_removal, 1, &zopt_sometimes },
{ ztest_remap_blocks, 1, &zopt_sometimes },
{ ztest_spa_checkpoint_create_discard, 1, &zopt_rarely },
{ ztest_initialize, 1, &zopt_sometimes }
{ ztest_initialize, 1, &zopt_sometimes },
{ ztest_verify_dnode_bt, 1, &zopt_sometimes }
};
#define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t))
@ -438,8 +445,8 @@ static spa_t *ztest_spa = NULL;
static ztest_ds_t *ztest_ds;
static kmutex_t ztest_vdev_lock;
static kmutex_t ztest_checkpoint_lock;
static boolean_t ztest_device_removal_active = B_FALSE;
static kmutex_t ztest_checkpoint_lock;
/*
* The ztest_name_lock protects the pool and dataset namespace used by
@ -1008,6 +1015,36 @@ ztest_random_blocksize(void)
return (1 << (SPA_MINBLOCKSHIFT + block_shift));
}
static int
ztest_random_dnodesize(void)
{
int slots;
int max_slots = spa_maxdnodesize(ztest_spa) >> DNODE_SHIFT;
if (max_slots == DNODE_MIN_SLOTS)
return (DNODE_MIN_SIZE);
/*
* Weight the random distribution more heavily toward smaller
* dnode sizes since that is more likely to reflect real-world
* usage.
*/
ASSERT3U(max_slots, >, 4);
switch (ztest_random(10)) {
case 0:
slots = 5 + ztest_random(max_slots - 4);
break;
case 1 ... 4:
slots = 2 + ztest_random(3);
break;
default:
slots = 1;
break;
}
return (slots << DNODE_SHIFT);
}
static int
ztest_random_ibshift(void)
{
@ -1285,11 +1322,13 @@ ztest_pattern_match(void *buf, uint64_t size, uint64_t value)
static void
ztest_bt_generate(ztest_block_tag_t *bt, objset_t *os, uint64_t object,
uint64_t offset, uint64_t gen, uint64_t txg, uint64_t crtxg)
uint64_t dnodesize, uint64_t offset, uint64_t gen, uint64_t txg,
uint64_t crtxg)
{
bt->bt_magic = BT_MAGIC;
bt->bt_objset = dmu_objset_id(os);
bt->bt_object = object;
bt->bt_dnodesize = dnodesize;
bt->bt_offset = offset;
bt->bt_gen = gen;
bt->bt_txg = txg;
@ -1298,11 +1337,13 @@ ztest_bt_generate(ztest_block_tag_t *bt, objset_t *os, uint64_t object,
static void
ztest_bt_verify(ztest_block_tag_t *bt, objset_t *os, uint64_t object,
uint64_t offset, uint64_t gen, uint64_t txg, uint64_t crtxg)
uint64_t dnodesize, uint64_t offset, uint64_t gen, uint64_t txg,
uint64_t crtxg)
{
ASSERT3U(bt->bt_magic, ==, BT_MAGIC);
ASSERT3U(bt->bt_objset, ==, dmu_objset_id(os));
ASSERT3U(bt->bt_object, ==, object);
ASSERT3U(bt->bt_dnodesize, ==, dnodesize);
ASSERT3U(bt->bt_offset, ==, offset);
ASSERT3U(bt->bt_gen, <=, gen);
ASSERT3U(bt->bt_txg, <=, txg);
@ -1323,6 +1364,52 @@ ztest_bt_bonus(dmu_buf_t *db)
return (bt);
}
/*
* Generate a token to fill up unused bonus buffer space. Try to make
* 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) \
(((ds) << 48) | ((gen) << 32) | ((obj) << 8) | (offset))
/*
* Fill up the unused bonus buffer region before the block tag with a
* verifiable pattern. Filling the whole bonus area with non-zero data
* helps ensure that all dnode traversal code properly skips the
* interior regions of large dnodes.
*/
void
ztest_fill_unused_bonus(dmu_buf_t *db, void *end, uint64_t obj,
objset_t *os, uint64_t gen)
{
uint64_t *bonusp;
ASSERT(IS_P2ALIGNED((char *)end - (char *)db->db_data, 8));
for (bonusp = db->db_data; bonusp < (uint64_t *)end; bonusp++) {
uint64_t token = ZTEST_BONUS_FILL_TOKEN(obj, dmu_objset_id(os),
gen, bonusp - (uint64_t *)db->db_data);
*bonusp = token;
}
}
/*
* Verify that the unused area of a bonus buffer is filled with the
* expected tokens.
*/
void
ztest_verify_unused_bonus(dmu_buf_t *db, void *end, uint64_t obj,
objset_t *os, uint64_t gen)
{
uint64_t *bonusp;
for (bonusp = db->db_data; bonusp < (uint64_t *)end; bonusp++) {
uint64_t token = ZTEST_BONUS_FILL_TOKEN(obj, dmu_objset_id(os),
gen, bonusp - (uint64_t *)db->db_data);
VERIFY3U(*bonusp, ==, token);
}
}
/*
* ZIL logging ops
*/
@ -1331,7 +1418,7 @@ ztest_bt_bonus(dmu_buf_t *db)
#define lrz_blocksize lr_uid
#define lrz_ibshift lr_gid
#define lrz_bonustype lr_rdev
#define lrz_bonuslen lr_crtime[1]
#define lrz_dnodesize lr_crtime[1]
static void
ztest_log_create(ztest_ds_t *zd, dmu_tx_t *tx, lr_create_t *lr)
@ -1447,6 +1534,7 @@ ztest_replay_create(void *arg1, void *arg2, boolean_t byteswap)
dmu_tx_t *tx;
uint64_t txg;
int error = 0;
int bonuslen;
if (byteswap)
byteswap_uint64_array(lr, sizeof (*lr));
@ -1469,26 +1557,27 @@ ztest_replay_create(void *arg1, void *arg2, boolean_t byteswap)
return (ENOSPC);
ASSERT(dmu_objset_zil(os)->zl_replay == !!lr->lr_foid);
bonuslen = DN_BONUS_SIZE(lr->lrz_dnodesize);
if (lr->lrz_type == DMU_OT_ZAP_OTHER) {
if (lr->lr_foid == 0) {
lr->lr_foid = zap_create(os,
lr->lr_foid = zap_create_dnsize(os,
lr->lrz_type, lr->lrz_bonustype,
lr->lrz_bonuslen, tx);
bonuslen, lr->lrz_dnodesize, tx);
} else {
error = zap_create_claim(os, lr->lr_foid,
error = zap_create_claim_dnsize(os, lr->lr_foid,
lr->lrz_type, lr->lrz_bonustype,
lr->lrz_bonuslen, tx);
bonuslen, lr->lrz_dnodesize, tx);
}
} else {
if (lr->lr_foid == 0) {
lr->lr_foid = dmu_object_alloc(os,
lr->lr_foid = dmu_object_alloc_dnsize(os,
lr->lrz_type, 0, lr->lrz_bonustype,
lr->lrz_bonuslen, tx);
bonuslen, lr->lrz_dnodesize, tx);
} else {
error = dmu_object_claim(os, lr->lr_foid,
error = dmu_object_claim_dnsize(os, lr->lr_foid,
lr->lrz_type, 0, lr->lrz_bonustype,
lr->lrz_bonuslen, tx);
bonuslen, lr->lrz_dnodesize, tx);
}
}
@ -1508,7 +1597,9 @@ ztest_replay_create(void *arg1, void *arg2, boolean_t byteswap)
VERIFY3U(0, ==, dmu_bonus_hold(os, lr->lr_foid, FTAG, &db));
bbt = ztest_bt_bonus(db);
dmu_buf_will_dirty(db, tx);
ztest_bt_generate(bbt, os, lr->lr_foid, -1ULL, lr->lr_gen, txg, txg);
ztest_bt_generate(bbt, os, lr->lr_foid, lr->lrz_dnodesize, -1ULL,
lr->lr_gen, txg, txg);
ztest_fill_unused_bonus(db, bbt, lr->lr_foid, os, lr->lr_gen);
dmu_buf_rele(db, FTAG);
VERIFY3U(0, ==, zap_add(os, lr->lr_doid, name, sizeof (uint64_t), 1,
@ -1658,7 +1749,7 @@ ztest_replay_write(void *arg1, void *arg2, boolean_t byteswap)
VERIFY(dmu_read(os, lr->lr_foid, offset,
sizeof (rbt), &rbt, prefetch) == 0);
if (rbt.bt_magic == BT_MAGIC) {
ztest_bt_verify(&rbt, os, lr->lr_foid,
ztest_bt_verify(&rbt, os, lr->lr_foid, 0,
offset, gen, txg, crtxg);
}
}
@ -1670,7 +1761,7 @@ ztest_replay_write(void *arg1, void *arg2, boolean_t byteswap)
* as it was when the write was generated.
*/
if (zd->zd_zilog->zl_replay) {
ztest_bt_verify(bt, os, lr->lr_foid, offset,
ztest_bt_verify(bt, os, lr->lr_foid, 0, offset,
MAX(gen, bt->bt_gen), MAX(txg, lrtxg),
bt->bt_crtxg);
}
@ -1679,7 +1770,8 @@ ztest_replay_write(void *arg1, void *arg2, boolean_t byteswap)
* Set the bt's gen/txg to the bonus buffer's gen/txg
* so that all of the usual ASSERTs will work.
*/
ztest_bt_generate(bt, os, lr->lr_foid, offset, gen, txg, crtxg);
ztest_bt_generate(bt, os, lr->lr_foid, 0, offset, gen, txg,
crtxg);
}
if (abuf == NULL) {
@ -1751,7 +1843,7 @@ ztest_replay_setattr(void *arg1, void *arg2, boolean_t byteswap)
dmu_tx_t *tx;
dmu_buf_t *db;
ztest_block_tag_t *bbt;
uint64_t txg, lrtxg, crtxg;
uint64_t txg, lrtxg, crtxg, dnodesize;
if (byteswap)
byteswap_uint64_array(lr, sizeof (*lr));
@ -1774,6 +1866,7 @@ ztest_replay_setattr(void *arg1, void *arg2, boolean_t byteswap)
ASSERT3U(bbt->bt_magic, ==, BT_MAGIC);
crtxg = bbt->bt_crtxg;
lrtxg = lr->lr_common.lrc_txg;
dnodesize = bbt->bt_dnodesize;
if (zd->zd_zilog->zl_replay) {
ASSERT(lr->lr_size != 0);
@ -1792,7 +1885,7 @@ ztest_replay_setattr(void *arg1, void *arg2, boolean_t byteswap)
/*
* Verify that the current bonus buffer is not newer than our txg.
*/
ztest_bt_verify(bbt, os, lr->lr_foid, -1ULL, lr->lr_mode,
ztest_bt_verify(bbt, os, lr->lr_foid, dnodesize, -1ULL, lr->lr_mode,
MAX(txg, lrtxg), crtxg);
dmu_buf_will_dirty(db, tx);
@ -1802,7 +1895,9 @@ ztest_replay_setattr(void *arg1, void *arg2, boolean_t byteswap)
VERIFY0(dmu_set_bonus(db, lr->lr_size, tx));
bbt = ztest_bt_bonus(db);
ztest_bt_generate(bbt, os, lr->lr_foid, -1ULL, lr->lr_mode, txg, crtxg);
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);
@ -2033,7 +2128,7 @@ ztest_create(ztest_ds_t *zd, ztest_od_t *od, int count)
lr->lrz_blocksize = od->od_crblocksize;
lr->lrz_ibshift = ztest_random_ibshift();
lr->lrz_bonustype = DMU_OT_UINT64_OTHER;
lr->lrz_bonuslen = dmu_bonus_max();
lr->lrz_dnodesize = od->od_crdnodesize;
lr->lr_gen = od->od_crgen;
lr->lr_crtime[0] = time(NULL);
@ -2212,7 +2307,8 @@ ztest_io(ztest_ds_t *zd, uint64_t object, uint64_t offset)
switch (io_type) {
case ZTEST_IO_WRITE_TAG:
ztest_bt_generate(&wbt, zd->zd_os, object, offset, 0, 0, 0);
ztest_bt_generate(&wbt, zd->zd_os, object, doi.doi_dnodesize,
offset, 0, 0, 0);
(void) ztest_write(zd, object, offset, sizeof (wbt), &wbt);
break;
@ -2273,13 +2369,15 @@ ztest_io(ztest_ds_t *zd, uint64_t object, uint64_t offset)
*/
static void
ztest_od_init(ztest_od_t *od, uint64_t id, char *tag, uint64_t index,
dmu_object_type_t type, uint64_t blocksize, uint64_t gen)
dmu_object_type_t type, uint64_t blocksize, uint64_t dnodesize,
uint64_t gen)
{
od->od_dir = ZTEST_DIROBJ;
od->od_object = 0;
od->od_crtype = type;
od->od_crblocksize = blocksize ? blocksize : ztest_random_blocksize();
od->od_crdnodesize = dnodesize ? dnodesize : ztest_random_dnodesize();
od->od_crgen = gen;
od->od_type = DMU_OT_NONE;
@ -3721,8 +3819,10 @@ ztest_dmu_object_alloc_free(ztest_ds_t *zd, uint64_t id)
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);
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,
@ -3736,6 +3836,26 @@ ztest_dmu_object_alloc_free(ztest_ds_t *zd, uint64_t id)
ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT);
}
/*
* 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.
*/
@ -3782,8 +3902,10 @@ 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, chunksize);
ztest_od_init(&od[1], id, FTAG, 1, DMU_OT_UINT64_OTHER, 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;
@ -4052,8 +4174,10 @@ 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);
ztest_od_init(&od[1], id, FTAG, 1, DMU_OT_UINT64_OTHER, 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;
@ -4254,7 +4378,8 @@ 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);
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;
@ -4273,7 +4398,8 @@ 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);
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;
@ -4319,7 +4445,7 @@ ztest_zap(ztest_ds_t *zd, uint64_t id)
int error;
char *hc[2] = { "s.acl.h", ".s.open.h.hyLZlg" };
ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_ZAP_OTHER, 0, 0);
ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_ZAP_OTHER, 0, 0, 0);
if (ztest_object_init(zd, od, sizeof (od), !ztest_random(2)) != 0)
return;
@ -4451,7 +4577,7 @@ ztest_fzap(ztest_ds_t *zd, uint64_t id)
ztest_od_t od[1];
uint64_t object, txg;
ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_ZAP_OTHER, 0, 0);
ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_ZAP_OTHER, 0, 0, 0);
if (ztest_object_init(zd, od, sizeof (od), !ztest_random(2)) != 0)
return;
@ -4497,7 +4623,8 @@ 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);
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;
@ -4685,7 +4812,7 @@ ztest_dmu_commit_callbacks(ztest_ds_t *zd, uint64_t id)
uint64_t old_txg, txg;
int i, error;
ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0);
ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0, 0);
if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
return;
@ -4799,6 +4926,41 @@ ztest_dmu_commit_callbacks(ztest_ds_t *zd, uint64_t id)
dmu_tx_commit(tx);
}
/*
* Visit each object in the dataset. Verify that its properties
* are consistent what was stored in the block tag when it was created,
* and that its unused bonus buffer space has not been overwritten.
*/
void
ztest_verify_dnode_bt(ztest_ds_t *zd, uint64_t id)
{
objset_t *os = zd->zd_os;
uint64_t obj;
int err = 0;
for (obj = 0; err == 0; err = dmu_object_next(os, &obj, FALSE, 0)) {
ztest_block_tag_t *bt = NULL;
dmu_object_info_t doi;
dmu_buf_t *db;
if (dmu_bonus_hold(os, obj, FTAG, &db) != 0)
continue;
dmu_object_info_from_db(db, &doi);
if (doi.doi_bonus_size >= sizeof (*bt))
bt = ztest_bt_bonus(db);
if (bt && bt->bt_magic == BT_MAGIC) {
ztest_bt_verify(bt, os, obj, doi.doi_dnodesize,
bt->bt_offset, bt->bt_gen, bt->bt_txg,
bt->bt_crtxg);
ztest_verify_unused_bonus(db, bt, obj, os, bt->bt_gen);
}
dmu_buf_rele(db, FTAG);
}
}
/* ARGSUSED */
void
ztest_dsl_prop_get_set(ztest_ds_t *zd, uint64_t id)
@ -5283,7 +5445,8 @@ 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);
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;
@ -6155,7 +6318,7 @@ ztest_freeze(void)
numloops++ < ztest_opts.zo_maxloops &&
metaslab_class_get_alloc(spa_normal_class(spa)) < capacity) {
ztest_od_t od;
ztest_od_init(&od, 0, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0);
ztest_od_init(&od, 0, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0, 0);
VERIFY0(ztest_object_init(zd, &od, sizeof (od), B_FALSE));
ztest_io(zd, od.od_object,
ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT);

11
common/zfs/zfeature_common.c
View File

@ -245,6 +245,17 @@ zpool_feature_init(void)
"Support for blocks larger than 128KB.",
ZFEATURE_FLAG_PER_DATASET, large_blocks_deps);
{
static const spa_feature_t large_dnode_deps[] = {
SPA_FEATURE_EXTENSIBLE_DATASET,
SPA_FEATURE_NONE
};
zfeature_register(SPA_FEATURE_LARGE_DNODE,
"org.zfsonlinux:large_dnode", "large_dnode",
"Variable on-disk size of dnodes.",
ZFEATURE_FLAG_PER_DATASET, large_dnode_deps);
}
static const spa_feature_t sha512_deps[] = {
SPA_FEATURE_EXTENSIBLE_DATASET,
SPA_FEATURE_NONE

1
common/zfs/zfeature_common.h
View File

@ -53,6 +53,7 @@ typedef enum spa_feature {
SPA_FEATURE_BOOKMARKS,
SPA_FEATURE_FS_SS_LIMIT,
SPA_FEATURE_LARGE_BLOCKS,
SPA_FEATURE_LARGE_DNODE,
SPA_FEATURE_SHA512,
SPA_FEATURE_SKEIN,
SPA_FEATURE_EDONR,

15
common/zfs/zfs_prop.c
View File

@ -210,6 +210,17 @@ zfs_prop_init(void)
{ NULL }
};
static zprop_index_t dnsize_table[] = {
{ "legacy", ZFS_DNSIZE_LEGACY },
{ "auto", ZFS_DNSIZE_AUTO },
{ "1k", ZFS_DNSIZE_1K },
{ "2k", ZFS_DNSIZE_2K },
{ "4k", ZFS_DNSIZE_4K },
{ "8k", ZFS_DNSIZE_8K },
{ "16k", ZFS_DNSIZE_16K },
{ NULL }
};
static zprop_index_t redundant_metadata_table[] = {
{ "all", ZFS_REDUNDANT_METADATA_ALL },
{ "most", ZFS_REDUNDANT_METADATA_MOST },
@ -266,6 +277,10 @@ zfs_prop_init(void)
PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"latency | throughput", "LOGBIAS", logbias_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);

2
common/zfs/zpool_prop.c
View File

@ -138,6 +138,8 @@ zpool_prop_init(void)
PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_POOL, "MAXBLOCKSIZE");
zprop_register_hidden(ZPOOL_PROP_TNAME, "tname", PROP_TYPE_STRING,
PROP_ONETIME, ZFS_TYPE_POOL, "TNAME");
zprop_register_hidden(ZPOOL_PROP_MAXDNODESIZE, "maxdnodesize",
PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_POOL, "MAXDNODESIZE");
}
/*

24
man/man5/zpool-features.5
View File

@ -533,6 +533,30 @@ set larger than 128KB, and will return to being \fBenabled\fR once all
filesystems that have ever had their recordsize larger than 128KB are destroyed.
.RE
.ne 2
.na
\fB\fBlarge_dnode\fR\fR
.ad
.RS 4n
.TS
l l .
GUID org.zfsonlinux:large_dnode
READ\-ONLY COMPATIBLE no
DEPENDENCIES extensible_dataset
.TE
The \fBlarge_dnode\fR feature allows the size of dnodes in a dataset to be
set larger than 512B.
This feature becomes \fBactive\fR once a dataset contains an object with a
dnode larger than 512B, which occurs as a result of setting the \fBdnodesize\fR
dataset property to a value other than \fBlegacy\fR. The feature will return to
being \fBenabled\fR once all filesystems that have ever contained a dnode larger
than 512B are destroyed. Large dnodes allow more data to be stored in the
bonus buffer, thus potentially improving performance by avoiding the use of
spill blocks.
.RE
.sp
.ne 2
.na

69
uts/common/fs/zfs/dbuf.c
View File

@ -742,7 +742,6 @@ dbuf_verify(dmu_buf_impl_t *db)
ASSERT3U(db->db.db_offset, ==, DMU_BONUS_BLKID);
} else if (db->db_blkid == DMU_SPILL_BLKID) {
ASSERT(dn != NULL);
ASSERT3U(db->db.db_size, >=, dn->dn_bonuslen);
ASSERT0(db->db.db_offset);
} else {
ASSERT3U(db->db.db_offset, ==, db->db_blkid * db->db.db_size);
@ -995,13 +994,18 @@ dbuf_read_impl(dmu_buf_impl_t *db, zio_t *zio, uint32_t flags)
ASSERT(db->db_buf == NULL);
if (db->db_blkid == DMU_BONUS_BLKID) {
/*
* The bonus length stored in the dnode may be less than
* the maximum available space in the bonus buffer.
*/
int bonuslen = MIN(dn->dn_bonuslen, dn->dn_phys->dn_bonuslen);
int max_bonuslen = DN_SLOTS_TO_BONUSLEN(dn->dn_num_slots);
ASSERT3U(bonuslen, <=, db->db.db_size);
db->db.db_data = zio_buf_alloc(DN_MAX_BONUSLEN);
arc_space_consume(DN_MAX_BONUSLEN, ARC_SPACE_OTHER);
if (bonuslen < DN_MAX_BONUSLEN)
bzero(db->db.db_data, DN_MAX_BONUSLEN);
db->db.db_data = zio_buf_alloc(max_bonuslen);
arc_space_consume(max_bonuslen, ARC_SPACE_BONUS);
if (bonuslen < max_bonuslen)
bzero(db->db.db_data, max_bonuslen);
if (bonuslen)
bcopy(DN_BONUS(dn->dn_phys), db->db.db_data, bonuslen);
DB_DNODE_EXIT(db);
@ -1108,9 +1112,11 @@ dbuf_fix_old_data(dmu_buf_impl_t *db, uint64_t txg)
ASSERT(dr->dr_txg >= txg - 2);
if (db->db_blkid == DMU_BONUS_BLKID) {
/* Note that the data bufs here are zio_bufs */
dr->dt.dl.dr_data = zio_buf_alloc(DN_MAX_BONUSLEN);
arc_space_consume(DN_MAX_BONUSLEN, ARC_SPACE_OTHER);
bcopy(db->db.db_data, dr->dt.dl.dr_data, DN_MAX_BONUSLEN);
dnode_t *dn = DB_DNODE(db);
int bonuslen = DN_SLOTS_TO_BONUSLEN(dn->dn_num_slots);
dr->dt.dl.dr_data = zio_buf_alloc(bonuslen);
arc_space_consume(bonuslen, ARC_SPACE_BONUS);
bcopy(db->db.db_data, dr->dt.dl.dr_data, bonuslen);
} else if (refcount_count(&db->db_holds) > db->db_dirtycnt) {
int size = arc_buf_size(db->db_buf);
arc_buf_contents_t type = DBUF_GET_BUFC_TYPE(db);
@ -2081,10 +2087,13 @@ dbuf_destroy(dmu_buf_impl_t *db)
}
if (db->db_blkid == DMU_BONUS_BLKID) {
ASSERT(db->db.db_data != NULL);
zio_buf_free(db->db.db_data, DN_MAX_BONUSLEN);
arc_space_return(DN_MAX_BONUSLEN, ARC_SPACE_OTHER);
db->db_state = DB_UNCACHED;
int slots = DB_DNODE(db)->dn_num_slots;
int bonuslen = DN_SLOTS_TO_BONUSLEN(slots);
if (db->db.db_data != NULL) {
zio_buf_free(db->db.db_data, bonuslen);
arc_space_return(bonuslen, ARC_SPACE_BONUS);
db->db_state = DB_UNCACHED;
}
}
dbuf_clear_data(db);
@ -2188,7 +2197,7 @@ dbuf_findbp(dnode_t *dn, int level, uint64_t blkid, int fail_sparse,
mutex_enter(&dn->dn_mtx);
if (dn->dn_have_spill &&
(dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR))
*bpp = &dn->dn_phys->dn_spill;
*bpp = DN_SPILL_BLKPTR(dn->dn_phys);
else
*bpp = NULL;
dbuf_add_ref(dn->dn_dbuf, NULL);
@ -2289,7 +2298,7 @@ dbuf_create(dnode_t *dn, uint8_t level, uint64_t blkid,
if (blkid == DMU_BONUS_BLKID) {
ASSERT3P(parent, ==, dn->dn_dbuf);
db->db.db_size = DN_MAX_BONUSLEN -
db->db.db_size = DN_SLOTS_TO_BONUSLEN(dn->dn_num_slots) -
(dn->dn_nblkptr-1) * sizeof (blkptr_t);
ASSERT3U(db->db.db_size, >=, dn->dn_bonuslen);
db->db.db_offset = DMU_BONUS_BLKID;
@ -3031,7 +3040,7 @@ dbuf_check_blkptr(dnode_t *dn, dmu_buf_impl_t *db)
return;
if (db->db_blkid == DMU_SPILL_BLKID) {
db->db_blkptr = &dn->dn_phys->dn_spill;
db->db_blkptr = DN_SPILL_BLKPTR(dn->dn_phys);
BP_ZERO(db->db_blkptr);
return;
}
@ -3162,13 +3171,17 @@ dbuf_sync_leaf(dbuf_dirty_record_t *dr, dmu_tx_t *tx)
ASSERT(*datap != NULL);
ASSERT0(db->db_level);
ASSERT3U(dn->dn_phys->dn_bonuslen, <=, DN_MAX_BONUSLEN);
bcopy(*datap, DN_BONUS(dn->dn_phys), dn->dn_phys->dn_bonuslen);
ASSERT3U(DN_MAX_BONUS_LEN(dn->dn_phys), <=,
DN_SLOTS_TO_BONUSLEN(dn->dn_phys->dn_extra_slots + 1));
bcopy(*datap, DN_BONUS(dn->dn_phys),
DN_MAX_BONUS_LEN(dn->dn_phys));
DB_DNODE_EXIT(db);
if (*datap != db->db.db_data) {
zio_buf_free(*datap, DN_MAX_BONUSLEN);
arc_space_return(DN_MAX_BONUSLEN, ARC_SPACE_OTHER);
int slots = DB_DNODE(db)->dn_num_slots;
int bonuslen = DN_SLOTS_TO_BONUSLEN(slots);
zio_buf_free(*datap, bonuslen);
arc_space_return(bonuslen, ARC_SPACE_BONUS);
}
db->db_data_pending = NULL;
drp = &db->db_last_dirty;
@ -3324,7 +3337,7 @@ dbuf_write_ready(zio_t *zio, arc_buf_t *buf, void *vdb)
if (db->db_blkid == DMU_SPILL_BLKID) {
ASSERT(dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR);
ASSERT(!(BP_IS_HOLE(bp)) &&
db->db_blkptr == &dn->dn_phys->dn_spill);
db->db_blkptr == DN_SPILL_BLKPTR(dn->dn_phys));
}
#endif
@ -3336,11 +3349,17 @@ dbuf_write_ready(zio_t *zio, arc_buf_t *buf, void *vdb)
mutex_exit(&dn->dn_mtx);
if (dn->dn_type == DMU_OT_DNODE) {
dnode_phys_t *dnp = db->db.db_data;
for (i = db->db.db_size >> DNODE_SHIFT; i > 0;
i--, dnp++) {
if (dnp->dn_type != DMU_OT_NONE)
i = 0;
while (i < db->db.db_size) {
dnode_phys_t *dnp =
(void *)(((char *)db->db.db_data) + i);
i += DNODE_MIN_SIZE;
if (dnp->dn_type != DMU_OT_NONE) {
fill++;
i += dnp->dn_extra_slots *
DNODE_MIN_SIZE;
}
}
} else {
if (BP_IS_HOLE(bp)) {
@ -3493,7 +3512,7 @@ dbuf_write_done(zio_t *zio, arc_buf_t *buf, void *vdb)
dn = DB_DNODE(db);
ASSERT(dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR);
ASSERT(!(BP_IS_HOLE(db->db_blkptr)) &&
db->db_blkptr == &dn->dn_phys->dn_spill);
db->db_blkptr == DN_SPILL_BLKPTR(dn->dn_phys));
DB_DNODE_EXIT(db);
}
#endif

19
uts/common/fs/zfs/dmu.c
View File

@ -254,7 +254,7 @@ dmu_buf_hold(objset_t *os, uint64_t object, uint64_t offset,
int
dmu_bonus_max(void)
{
return (DN_MAX_BONUSLEN);
return (DN_OLD_MAX_BONUSLEN);
}
int
@ -2264,6 +2264,7 @@ dmu_object_info_from_dnode(dnode_t *dn, dmu_object_info_t *doi)
doi->doi_type = dn->dn_type;
doi->doi_bonus_type = dn->dn_bonustype;
doi->doi_bonus_size = dn->dn_bonuslen;
doi->doi_dnodesize = dn->dn_num_slots << DNODE_SHIFT;
doi->doi_indirection = dn->dn_nlevels;
doi->doi_checksum = dn->dn_checksum;
doi->doi_compress = dn->dn_compress;
@ -2326,9 +2327,21 @@ dmu_object_size_from_db(dmu_buf_t *db_fake, uint32_t *blksize,
dn = DB_DNODE(db);
*blksize = dn->dn_datablksz;
/* add 1 for dnode space */
/* add in number of slots used for the dnode itself */
*nblk512 = ((DN_USED_BYTES(dn->dn_phys) + SPA_MINBLOCKSIZE/2) >>
SPA_MINBLOCKSHIFT) + 1;
SPA_MINBLOCKSHIFT) + dn->dn_num_slots;
DB_DNODE_EXIT(db);
}
void
dmu_object_dnsize_from_db(dmu_buf_t *db_fake, int *dnsize)
{
dmu_buf_impl_t *db = (dmu_buf_impl_t *)db_fake;
dnode_t *dn;
DB_DNODE_ENTER(db);
dn = DB_DNODE(db);
*dnsize = dn->dn_num_slots << DNODE_SHIFT;
DB_DNODE_EXIT(db);
}

295
uts/common/fs/zfs/dmu_object.c
View File

@ -30,53 +30,132 @@
#include <sys/dnode.h>
#include <sys/zap.h>
#include <sys/zfeature.h>
#include <sys/dsl_dataset.h>
uint64_t
dmu_object_alloc_ibs(objset_t *os, dmu_object_type_t ot, int blocksize,
int indirect_blockshift,
dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx)
/*
* 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,
int indirect_blockshift, dmu_object_type_t bonustype, int bonuslen,
int dnodesize, dmu_tx_t *tx)
{
uint64_t object;
uint64_t L1_dnode_count = DNODES_PER_BLOCK <<
(DMU_META_DNODE(os)->dn_indblkshift - SPA_BLKPTRSHIFT);
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;
} else {
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;
/*
* 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, but after that keep looking from here.
* os_scan_dnodes is set during txg sync if enough objects
* have been freed since the previous rescan to justify
* backfilling again. If we can't find a suitable block, just
* keep going from here.
*
* 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 we finished a chunk of dnodes, get a new one from
* the global allocator.
*/
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;
if (P2PHASE(object, L1_dnode_count) == 0) {
uint64_t offset;
int error;
if (os->os_rescan_dnodes) {
offset = 0;
os->os_rescan_dnodes = B_FALSE;
} else {
offset = object << DNODE_SHIFT;
/*
* 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;
}
}
error = dnode_next_offset(DMU_META_DNODE(os),
DNODE_FIND_HOLE,
&offset, 2, DNODES_PER_BLOCK >> 2, 0);
if (error == 0)
object = offset >> 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);
}
os->os_obj_next = ++object;
/*
* 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
@ -84,47 +163,94 @@ dmu_object_alloc_ibs(objset_t *os, dmu_object_type_t ot, int blocksize,
* dmu_tx_assign(), but there is currently no mechanism
* to do so.
*/
(void) dnode_hold_impl(os, object, DNODE_MUST_BE_FREE,
FTAG, &dn);
if (dn)
break;
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);
/*
* Another thread could have allocated it; check
* again now that we have the struct lock.
*/
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);
}
if (dmu_object_next(os, &object, B_TRUE, 0) == 0)
os->os_obj_next = object - 1;
/*
* 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);
}
dnode_allocate(dn, ot, blocksize, indirect_blockshift,
bonustype, bonuslen, 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_ibs(os, ot, blocksize, 0,
bonustype, bonuslen, tx));
return (dmu_object_alloc_impl(os, ot, blocksize, 0, bonustype,
bonuslen, 0, tx));
}
uint64_t
dmu_object_alloc_ibs(objset_t *os, dmu_object_type_t ot, int blocksize,
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));
}
uint64_t
dmu_object_alloc_dnsize(objset_t *os, dmu_object_type_t ot, int blocksize,
dmu_object_type_t bonustype, int bonuslen, int dnodesize, dmu_tx_t *tx)
{
return (dmu_object_alloc_impl(os, ot, blocksize, 0, bonustype,
bonuslen, dnodesize, tx));
}
int
dmu_object_claim(objset_t *os, uint64_t object, dmu_object_type_t ot,
int blocksize, dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx)
{
return (dmu_object_claim_dnsize(os, object, ot, blocksize, bonustype,
bonuslen, 0, tx));
}
int
dmu_object_claim_dnsize(objset_t *os, uint64_t object, dmu_object_type_t ot,
int blocksize, dmu_object_type_t bonustype, int bonuslen,
int dnodesize, dmu_tx_t *tx)
{
dnode_t *dn;
int dn_slots = dnodesize >> DNODE_SHIFT;
int err;
if (dn_slots == 0)
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));
err = dnode_hold_impl(os, object, DNODE_MUST_BE_FREE, FTAG, &dn);
err = dnode_hold_impl(os, object, DNODE_MUST_BE_FREE, dn_slots,
FTAG, &dn);
if (err)
return (err);
dnode_allocate(dn, ot, blocksize, 0, bonustype, bonuslen, tx);
dnode_allocate(dn, ot, blocksize, 0, bonustype, bonuslen, dn_slots, tx);
dmu_tx_add_new_object(tx, dn);
dnode_rele(dn, FTAG);
@ -135,19 +261,29 @@ dmu_object_claim(objset_t *os, uint64_t object, dmu_object_type_t ot,
int
dmu_object_reclaim(objset_t *os, uint64_t object, dmu_object_type_t ot,
int blocksize, dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx)
{
return (dmu_object_reclaim_dnsize(os, object, ot, blocksize, bonustype,
bonuslen, 0, tx));
}
int
dmu_object_reclaim_dnsize(objset_t *os, uint64_t object, dmu_object_type_t ot,
int blocksize, dmu_object_type_t bonustype, int bonuslen, int dnodesize,
dmu_tx_t *tx)
{
dnode_t *dn;
int dn_slots = dnodesize >> DNODE_SHIFT;
int err;
if (object == DMU_META_DNODE_OBJECT)
return (SET_ERROR(EBADF));
err = dnode_hold_impl(os, object, DNODE_MUST_BE_ALLOCATED,
err = dnode_hold_impl(os, object, DNODE_MUST_BE_ALLOCATED, 0,
FTAG, &dn);
if (err)
return (err);
dnode_reallocate(dn, ot, blocksize, bonustype, bonuslen, tx);
dnode_reallocate(dn, ot, blocksize, bonustype, bonuslen, dn_slots, tx);
dnode_rele(dn, FTAG);
return (err);
@ -161,7 +297,7 @@ dmu_object_free(objset_t *os, uint64_t object, dmu_tx_t *tx)
ASSERT(object != DMU_META_DNODE_OBJECT || dmu_tx_private_ok(tx));
err = dnode_hold_impl(os, object, DNODE_MUST_BE_ALLOCATED,
err = dnode_hold_impl(os, object, DNODE_MUST_BE_ALLOCATED, 0,
FTAG, &dn);
if (err)
return (err);
@ -186,9 +322,54 @@ dmu_object_free(objset_t *os, uint64_t object, dmu_tx_t *tx)
int
dmu_object_next(objset_t *os, uint64_t *objectp, boolean_t hole, uint64_t txg)
{
uint64_t offset = (*objectp + 1) << DNODE_SHIFT;
uint64_t offset;
uint64_t start_obj;
struct dsl_dataset *ds = os->os_dsl_dataset;
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;
} else {
start_obj = *objectp + 1;
}
offset = start_obj << DNODE_SHIFT;
error = dnode_next_offset(DMU_META_DNODE(os),
(hole ? DNODE_FIND_HOLE : 0), &offset, 0, DNODES_PER_BLOCK, txg);

52
uts/common/fs/zfs/dmu_objset.c
View File

@ -140,6 +140,12 @@ dmu_objset_id(objset_t *os)
return (ds ? ds->ds_object : 0);
}
uint64_t
dmu_objset_dnodesize(objset_t *os)
{
return (os->os_dnodesize);
}
zfs_sync_type_t
dmu_objset_syncprop(objset_t *os)
{
@ -269,6 +275,34 @@ redundant_metadata_changed_cb(void *arg, uint64_t newval)
os->os_redundant_metadata = newval;
}
static void
dnodesize_changed_cb(void *arg, uint64_t newval)
{
objset_t *os = arg;
switch (newval) {
case ZFS_DNSIZE_LEGACY:
os->os_dnodesize = DNODE_MIN_SIZE;
break;
case ZFS_DNSIZE_AUTO:
/*
* Choose a dnode size that will work well for most
* workloads if the user specified "auto". Future code
* improvements could dynamically select a dnode size
* based on observed workload patterns.
*/
os->os_dnodesize = DNODE_MIN_SIZE * 2;
break;
case ZFS_DNSIZE_1K:
case ZFS_DNSIZE_2K:
case ZFS_DNSIZE_4K:
case ZFS_DNSIZE_8K:
case ZFS_DNSIZE_16K:
os->os_dnodesize = newval;
break;
}
}
static void
logbias_changed_cb(void *arg, uint64_t newval)
{
@ -477,6 +511,11 @@ dmu_objset_open_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp,
zfs_prop_to_name(ZFS_PROP_RECORDSIZE),
recordsize_changed_cb, os);
}
if (err == 0) {
err = dsl_prop_register(ds,
zfs_prop_to_name(ZFS_PROP_DNODESIZE),
dnodesize_changed_cb, os);
}
}
if (needlock)
dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
@ -496,6 +535,7 @@ dmu_objset_open_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp,
os->os_sync = ZFS_SYNC_STANDARD;
os->os_primary_cache = ZFS_CACHE_ALL;
os->os_secondary_cache = ZFS_CACHE_ALL;
os->os_dnodesize = DNODE_MIN_SIZE;
}
/*
* These properties will be filled in by the logic in zfs_get_zplprop()
@ -524,6 +564,9 @@ dmu_objset_open_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp,
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);
@ -802,6 +845,9 @@ 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);
mutex_destroy(&os->os_obj_lock);
@ -836,8 +882,8 @@ dmu_objset_create_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp,
mdn = DMU_META_DNODE(os);
dnode_allocate(mdn, DMU_OT_DNODE, 1 << DNODE_BLOCK_SHIFT,
DN_MAX_INDBLKSHIFT, DMU_OT_NONE, 0, tx);
dnode_allocate(mdn, DMU_OT_DNODE, DNODE_BLOCK_SIZE, DN_MAX_INDBLKSHIFT,
DMU_OT_NONE, 0, DNODE_MIN_SLOTS, tx);
/*
* We don't want to have to increase the meta-dnode's nlevels
@ -1496,7 +1542,7 @@ do_userquota_update(userquota_cache_t *cache, uint64_t used, uint64_t flags,
uint64_t user, uint64_t group, boolean_t subtract)
{
if ((flags & DNODE_FLAG_USERUSED_ACCOUNTED)) {
int64_t delta = DNODE_SIZE + used;
int64_t delta = DNODE_MIN_SIZE + used;
if (subtract)
delta = -delta;

107
uts/common/fs/zfs/dmu_send.c
View File

@ -469,6 +469,7 @@ dump_dnode(dmu_sendarg_t *dsp, uint64_t object, dnode_phys_t *dnp)
drro->drr_bonustype = dnp->dn_bonustype;
drro->drr_blksz = dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT;
drro->drr_bonuslen = dnp->dn_bonuslen;
drro->drr_dn_slots = dnp->dn_extra_slots + 1;
drro->drr_checksumtype = dnp->dn_checksum;
drro->drr_compress = dnp->dn_compress;
drro->drr_toguid = dsp->dsa_toguid;
@ -621,7 +622,7 @@ do_dump(dmu_sendarg_t *dsa, struct send_block_record *data)
} else if (zb->zb_level > 0 || type == DMU_OT_OBJSET) {
return (0);
} else if (type == DMU_OT_DNODE) {
int blksz = BP_GET_LSIZE(bp);
int epb = BP_GET_LSIZE(bp) >> DNODE_SHIFT;
arc_flags_t aflags = ARC_FLAG_WAIT;
arc_buf_t *abuf;
@ -633,8 +634,8 @@ do_dump(dmu_sendarg_t *dsa, struct send_block_record *data)
return (SET_ERROR(EIO));
dnode_phys_t *blk = abuf->b_data;
uint64_t dnobj = zb->zb_blkid * (blksz >> DNODE_SHIFT);
for (int i = 0; i < blksz >> DNODE_SHIFT; i++) {
uint64_t dnobj = zb->zb_blkid * epb;
for (int i = 0; i < epb; i += blk[i].dn_extra_slots + 1) {
err = dump_dnode(dsa, dnobj + i, blk + i);
if (err != 0)
break;
@ -802,6 +803,8 @@ dmu_send_impl(void *tag, dsl_pool_t *dp, dsl_dataset_t *to_ds,
if (large_block_ok && to_ds->ds_feature_inuse[SPA_FEATURE_LARGE_BLOCKS])
featureflags |= DMU_BACKUP_FEATURE_LARGE_BLOCKS;
if (to_ds->ds_feature_inuse[SPA_FEATURE_LARGE_DNODE])
featureflags |= DMU_BACKUP_FEATURE_LARGE_DNODE;
if (embedok &&
spa_feature_is_active(dp->dp_spa, SPA_FEATURE_EMBEDDED_DATA)) {
featureflags |= DMU_BACKUP_FEATURE_EMBED_DATA;
@ -1396,11 +1399,15 @@ 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.
* 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));
error = dsl_dataset_hold(dp, tofs, FTAG, &ds);
if (error == 0) {
@ -1605,6 +1612,9 @@ 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);
@ -1632,8 +1642,18 @@ 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));
/* 6 extra bytes for /%recv */
char recvname[ZFS_MAX_DATASET_NAME_LEN + 6];
/*
* 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));
(void) snprintf(recvname, sizeof (recvname), "%s/%s",
tofs, recv_clone_name);
@ -2024,7 +2044,8 @@ deduce_nblkptr(dmu_object_type_t bonus_type, uint64_t bonus_size)
return (1);
} else {
return (1 +
((DN_MAX_BONUSLEN - bonus_size) >> SPA_BLKPTRSHIFT));
((DN_OLD_MAX_BONUSLEN -
MIN(DN_OLD_MAX_BONUSLEN, bonus_size)) >> SPA_BLKPTRSHIFT));
}
}
@ -2082,15 +2103,17 @@ receive_object(struct receive_writer_arg *rwa, struct drr_object *drro,
P2PHASE(drro->drr_blksz, SPA_MINBLOCKSIZE) ||
drro->drr_blksz < SPA_MINBLOCKSIZE ||
drro->drr_blksz > spa_maxblocksize(dmu_objset_spa(rwa->os)) ||
drro->drr_bonuslen > DN_MAX_BONUSLEN) {
drro->drr_bonuslen >
DN_BONUS_SIZE(spa_maxdnodesize(dmu_objset_spa(rwa->os))) ||
drro->drr_dn_slots >
(spa_maxdnodesize(dmu_objset_spa(rwa->os)) >> DNODE_SHIFT)) {
return (SET_ERROR(EINVAL));
}
err = dmu_object_info(rwa->os, drro->drr_object, &doi);
if (err != 0 && err != ENOENT)
if (err != 0 && err != ENOENT && err != EEXIST)
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;
@ -2103,16 +2126,64 @@ receive_object(struct receive_writer_arg *rwa, struct drr_object *drro,
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) {
nblkptr < doi.doi_nblkptr ||
drro->drr_dn_slots != doi.doi_dnodesize >> DNODE_SHIFT) {
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 (drro->drr_dn_slots > 1) {
boolean_t need_sync = B_FALSE;
for (uint64_t slot = drro->drr_object + 1;
slot < drro->drr_object + drro->drr_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);
@ -2125,9 +2196,10 @@ receive_object(struct receive_writer_arg *rwa, struct drr_object *drro,
if (object == DMU_NEW_OBJECT) {
/* currently free, want to be allocated */
err = dmu_object_claim(rwa->os, drro->drr_object,
err = dmu_object_claim_dnsize(rwa->os, drro->drr_object,
drro->drr_type, drro->drr_blksz,
drro->drr_bonustype, drro->drr_bonuslen, tx);
drro->drr_bonustype, drro->drr_bonuslen,
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 ||
@ -2179,13 +2251,18 @@ receive_freeobjects(struct receive_writer_arg *rwa,
if (drrfo->drr_firstobj + drrfo->drr_numobjs < drrfo->drr_firstobj)
return (SET_ERROR(EINVAL));
for (obj = drrfo->drr_firstobj;
for (obj = drrfo->drr_firstobj == 0 ? 1 : drrfo->drr_firstobj;
obj < drrfo->drr_firstobj + drrfo->drr_numobjs && next_err == 0;
next_err = dmu_object_next(rwa->os, &obj, FALSE, 0)) {
int err;
if (dmu_object_info(rwa->os, obj, NULL) != 0)
err = dmu_object_info(rwa->os, obj, NULL);
if (err == ENOENT) {
obj++;
continue;
} else if (err != 0) {
return (err);
}
err = dmu_free_long_object(rwa->os, obj);
if (err != 0)

8
uts/common/fs/zfs/dmu_traverse.c
View File

@ -327,13 +327,13 @@ traverse_visitbp(traverse_data_t *td, const dnode_phys_t *dnp,
goto post;
dnode_phys_t *child_dnp = buf->b_data;
for (i = 0; i < epb; i++) {
for (i = 0; i < epb; i += child_dnp[i].dn_extra_slots + 1) {
prefetch_dnode_metadata(td, &child_dnp[i],
zb->zb_objset, zb->zb_blkid * epb + i);
}
/* recursively visitbp() blocks below this */
for (i = 0; i < epb; i++) {
for (i = 0; i < epb; i += child_dnp[i].dn_extra_slots + 1) {
err = traverse_dnode(td, &child_dnp[i],
zb->zb_objset, zb->zb_blkid * epb + i);
if (err != 0)
@ -435,7 +435,7 @@ prefetch_dnode_metadata(traverse_data_t *td, const dnode_phys_t *dnp,
if (dnp->dn_flags & DNODE_FLAG_SPILL_BLKPTR) {
SET_BOOKMARK(&czb, objset, object, 0, DMU_SPILL_BLKID);
traverse_prefetch_metadata(td, &dnp->dn_spill, &czb);
traverse_prefetch_metadata(td, DN_SPILL_BLKPTR(dnp), &czb);
}
}
@ -470,7 +470,7 @@ traverse_dnode(traverse_data_t *td, const dnode_phys_t *dnp,
if (err == 0 && (dnp->dn_flags & DNODE_FLAG_SPILL_BLKPTR)) {
SET_BOOKMARK(&czb, objset, object, 0, DMU_SPILL_BLKID);
err = traverse_visitbp(td, dnp, &dnp->dn_spill, &czb);
err = traverse_visitbp(td, dnp, DN_SPILL_BLKPTR(dnp), &czb);
}
if (err == 0 && (td->td_flags & TRAVERSE_POST)) {

14
uts/common/fs/zfs/dmu_tx.c
View File

@ -280,7 +280,7 @@ dmu_tx_count_write(dmu_tx_hold_t *txh, uint64_t off, uint64_t len)
static void
dmu_tx_count_dnode(dmu_tx_hold_t *txh)
{
(void) refcount_add_many(&txh->txh_space_towrite, DNODE_SIZE, FTAG);
(void) refcount_add_many(&txh->txh_space_towrite, DNODE_MIN_SIZE, FTAG);
}
void
@ -1246,11 +1246,13 @@ 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_object_impl(tx,
tx->tx_objset, object, THT_SPILL, 0, 0);
dmu_tx_hold_t *txh;
(void) refcount_add_many(&txh->txh_space_towrite,
SPA_OLD_MAXBLOCKSIZE, FTAG);
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
@ -1274,7 +1276,7 @@ dmu_tx_hold_sa_create(dmu_tx_t *tx, int attrsize)
dmu_tx_sa_registration_hold(sa, tx);
if (attrsize <= DN_MAX_BONUSLEN && !sa->sa_force_spill)
if (attrsize <= DN_OLD_MAX_BONUSLEN && !sa->sa_force_spill)
return;
(void) dmu_tx_hold_object_impl(tx, tx->tx_objset, DMU_NEW_OBJECT,

581
uts/common/fs/zfs/dnode.c
View File

@ -40,20 +40,40 @@
#include <sys/dmu_zfetch.h>
#include <sys/range_tree.h>
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 */
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 },
};
#ifdef DNODE_STATS
#define DNODE_STAT_ADD(stat) ((stat)++)
#else
#define DNODE_STAT_ADD(stat) /* nothing */
#endif /* DNODE_STATS */
static kstat_t *dnode_ksp;
static kmem_cache_t *dnode_cache;
static dnode_phys_t dnode_phys_zero;
@ -218,12 +238,25 @@ 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;
}
@ -250,6 +283,7 @@ dnode_verify(dnode_t *dn)
}
if (dn->dn_phys->dn_type != DMU_OT_NONE || dn->dn_allocated_txg != 0) {
int i;
int max_bonuslen = DN_SLOTS_TO_BONUSLEN(dn->dn_num_slots);
ASSERT3U(dn->dn_indblkshift, >=, 0);
ASSERT3U(dn->dn_indblkshift, <=, SPA_MAXBLOCKSHIFT);
if (dn->dn_datablkshift) {
@ -261,12 +295,12 @@ dnode_verify(dnode_t *dn)
ASSERT(DMU_OT_IS_VALID(dn->dn_type));
ASSERT3U(dn->dn_nblkptr, >=, 1);
ASSERT3U(dn->dn_nblkptr, <=, DN_MAX_NBLKPTR);
ASSERT3U(dn->dn_bonuslen, <=, DN_MAX_BONUSLEN);
ASSERT3U(dn->dn_bonuslen, <=, max_bonuslen);
ASSERT3U(dn->dn_datablksz, ==,
dn->dn_datablkszsec << SPA_MINBLOCKSHIFT);
ASSERT3U(ISP2(dn->dn_datablksz), ==, dn->dn_datablkshift != 0);
ASSERT3U((dn->dn_nblkptr - 1) * sizeof (blkptr_t) +
dn->dn_bonuslen, <=, DN_MAX_BONUSLEN);
dn->dn_bonuslen, <=, max_bonuslen);
for (i = 0; i < TXG_SIZE; i++) {
ASSERT3U(dn->dn_next_nlevels[i], <=, dn->dn_nlevels);
}
@ -297,6 +331,7 @@ dnode_byteswap(dnode_phys_t *dnp)
dnp->dn_datablkszsec = BSWAP_16(dnp->dn_datablkszsec);
dnp->dn_bonuslen = BSWAP_16(dnp->dn_bonuslen);
dnp->dn_extra_slots = BSWAP_8(dnp->dn_extra_slots);
dnp->dn_maxblkid = BSWAP_64(dnp->dn_maxblkid);
dnp->dn_used = BSWAP_64(dnp->dn_used);
@ -323,7 +358,8 @@ dnode_byteswap(dnode_phys_t *dnp)
* dnode buffer).
*/
int off = (dnp->dn_nblkptr-1) * sizeof (blkptr_t);
size_t len = DN_MAX_BONUSLEN - off;
int slots = dnp->dn_extra_slots + 1;
size_t len = DN_SLOTS_TO_BONUSLEN(slots) - off;
ASSERT(DMU_OT_IS_VALID(dnp->dn_bonustype));
dmu_object_byteswap_t byteswap =
DMU_OT_BYTESWAP(dnp->dn_bonustype);
@ -332,23 +368,25 @@ dnode_byteswap(dnode_phys_t *dnp)
/* Swap SPILL block if we have one */
if (dnp->dn_flags & DNODE_FLAG_SPILL_BLKPTR)
byteswap_uint64_array(&dnp->dn_spill, sizeof (blkptr_t));
byteswap_uint64_array(DN_SPILL_BLKPTR(dnp), sizeof (blkptr_t));
}
void
dnode_buf_byteswap(void *vbuf, size_t size)
{
dnode_phys_t *buf = vbuf;
int i;
int i = 0;
ASSERT3U(sizeof (dnode_phys_t), ==, (1<<DNODE_SHIFT));
ASSERT((size & (sizeof (dnode_phys_t)-1)) == 0);
size >>= DNODE_SHIFT;
for (i = 0; i < size; i++) {
dnode_byteswap(buf);
buf++;
while (i < size) {
dnode_phys_t *dnp = (void *)(((char *)vbuf) + i);
dnode_byteswap(dnp);
i += DNODE_MIN_SIZE;
if (dnp->dn_type != DMU_OT_NONE)
i += dnp->dn_extra_slots * DNODE_MIN_SIZE;
}
}
@ -359,7 +397,7 @@ dnode_setbonuslen(dnode_t *dn, int newsize, dmu_tx_t *tx)
dnode_setdirty(dn, tx);
rw_enter(&dn->dn_struct_rwlock, RW_WRITER);
ASSERT3U(newsize, <=, DN_MAX_BONUSLEN -
ASSERT3U(newsize, <=, DN_SLOTS_TO_BONUSLEN(dn->dn_num_slots) -
(dn->dn_nblkptr-1) * sizeof (blkptr_t));
dn->dn_bonuslen = newsize;
if (newsize == 0)
@ -439,6 +477,7 @@ dnode_create(objset_t *os, dnode_phys_t *dnp, dmu_buf_impl_t *db,
dn->dn_compress = dnp->dn_compress;
dn->dn_bonustype = dnp->dn_bonustype;
dn->dn_bonuslen = dnp->dn_bonuslen;
dn->dn_num_slots = dnp->dn_extra_slots + 1;
dn->dn_maxblkid = dnp->dn_maxblkid;
dn->dn_have_spill = ((dnp->dn_flags & DNODE_FLAG_SPILL_BLKPTR) != 0);
dn->dn_id_flags = 0;
@ -446,14 +485,10 @@ dnode_create(objset_t *os, dnode_phys_t *dnp, dmu_buf_impl_t *db,
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) {
/* Lost the allocation race. */
mutex_exit(&os->os_lock);
kmem_cache_free(dnode_cache, dn);
return (dnh->dnh_dnode);
}
/*
* Exclude special dnodes from os_dnodes so an empty os_dnodes
@ -476,6 +511,7 @@ dnode_create(objset_t *os, dnode_phys_t *dnp, dmu_buf_impl_t *db,
mutex_exit(&os->os_lock);
arc_space_consume(sizeof (dnode_t), ARC_SPACE_OTHER);
return (dn);
}
@ -501,7 +537,8 @@ dnode_destroy(dnode_t *dn)
mutex_exit(&os->os_lock);
/* the dnode can no longer move, so we can release the handle */
zrl_remove(&dn->dn_handle->dnh_zrlock);
if (!zrl_is_locked(&dn->dn_handle->dnh_zrlock))
zrl_remove(&dn->dn_handle->dnh_zrlock);
dn->dn_allocated_txg = 0;
dn->dn_free_txg = 0;
@ -538,10 +575,13 @@ dnode_destroy(dnode_t *dn)
void
dnode_allocate(dnode_t *dn, dmu_object_type_t ot, int blocksize, int ibs,
dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx)
dmu_object_type_t bonustype, int bonuslen, int dn_slots, dmu_tx_t *tx)
{
int i;
ASSERT3U(dn_slots, >, 0);
ASSERT3U(dn_slots << DNODE_SHIFT, <=,
spa_maxdnodesize(dmu_objset_spa(dn->dn_objset)));
ASSERT3U(blocksize, <=,
spa_maxblocksize(dmu_objset_spa(dn->dn_objset)));
if (blocksize == 0)
@ -554,8 +594,10 @@ dnode_allocate(dnode_t *dn, dmu_object_type_t ot, int blocksize, int ibs,
ibs = MIN(MAX(ibs, DN_MIN_INDBLKSHIFT), DN_MAX_INDBLKSHIFT);
dprintf("os=%p obj=%llu txg=%llu blocksize=%d ibs=%d\n", dn->dn_objset,
dn->dn_object, tx->tx_txg, blocksize, ibs);
dprintf("os=%p obj=%" PRIu64 " txg=%" PRIu64
" blocksize=%d ibs=%d dn_slots=%d\n",
dn->dn_objset, dn->dn_object, tx->tx_txg, blocksize, ibs, dn_slots);
DNODE_STAT_BUMP(dnode_allocate);
ASSERT(dn->dn_type == DMU_OT_NONE);
ASSERT(bcmp(dn->dn_phys, &dnode_phys_zero, sizeof (dnode_phys_t)) == 0);
@ -566,7 +608,7 @@ dnode_allocate(dnode_t *dn, dmu_object_type_t ot, int blocksize, int ibs,
(bonustype == DMU_OT_SA && bonuslen == 0) ||
(bonustype != DMU_OT_NONE && bonuslen != 0));
ASSERT(DMU_OT_IS_VALID(bonustype));
ASSERT3U(bonuslen, <=, DN_MAX_BONUSLEN);
ASSERT3U(bonuslen, <=, DN_SLOTS_TO_BONUSLEN(dn_slots));
ASSERT(dn->dn_type == DMU_OT_NONE);
ASSERT0(dn->dn_maxblkid);
ASSERT0(dn->dn_allocated_txg);
@ -592,11 +634,15 @@ dnode_allocate(dnode_t *dn, dmu_object_type_t ot, int blocksize, int ibs,
dnode_setdblksz(dn, blocksize);
dn->dn_indblkshift = ibs;
dn->dn_nlevels = 1;
dn->dn_num_slots = dn_slots;
if (bonustype == DMU_OT_SA) /* Maximize bonus space for SA */
dn->dn_nblkptr = 1;
else
dn->dn_nblkptr = 1 +
((DN_MAX_BONUSLEN - bonuslen) >> SPA_BLKPTRSHIFT);
else {
dn->dn_nblkptr = MIN(DN_MAX_NBLKPTR,
1 + ((DN_SLOTS_TO_BONUSLEN(dn_slots) - bonuslen) >>
SPA_BLKPTRSHIFT));
}
dn->dn_bonustype = bonustype;
dn->dn_bonuslen = bonuslen;
dn->dn_checksum = ZIO_CHECKSUM_INHERIT;
@ -621,7 +667,7 @@ dnode_allocate(dnode_t *dn, dmu_object_type_t ot, int blocksize, int ibs,
void
dnode_reallocate(dnode_t *dn, dmu_object_type_t ot, int blocksize,
dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx)
dmu_object_type_t bonustype, int bonuslen, int dn_slots, dmu_tx_t *tx)
{
int nblkptr;
@ -635,7 +681,13 @@ dnode_reallocate(dnode_t *dn, dmu_object_type_t ot, int blocksize,
(bonustype != DMU_OT_NONE && bonuslen != 0) ||
(bonustype == DMU_OT_SA && bonuslen == 0));
ASSERT(DMU_OT_IS_VALID(bonustype));
ASSERT3U(bonuslen, <=, DN_MAX_BONUSLEN);
ASSERT3U(bonuslen, <=,
DN_BONUS_SIZE(spa_maxdnodesize(dmu_objset_spa(dn->dn_objset))));
dn_slots = dn_slots > 0 ? dn_slots : DNODE_MIN_SLOTS;
dnode_free_interior_slots(dn);
DNODE_STAT_BUMP(dnode_reallocate);
/* clean up any unreferenced dbufs */
dnode_evict_dbufs(dn);
@ -658,7 +710,9 @@ dnode_reallocate(dnode_t *dn, dmu_object_type_t ot, int blocksize,
if (bonustype == DMU_OT_SA) /* Maximize bonus space for SA */
nblkptr = 1;
else
nblkptr = 1 + ((DN_MAX_BONUSLEN - bonuslen) >> SPA_BLKPTRSHIFT);
nblkptr = MIN(DN_MAX_NBLKPTR,
1 + ((DN_SLOTS_TO_BONUSLEN(dn_slots) - bonuslen) >>
SPA_BLKPTRSHIFT));
if (dn->dn_bonustype != bonustype)
dn->dn_next_bonustype[tx->tx_txg&TXG_MASK] = bonustype;
if (dn->dn_nblkptr != nblkptr)
@ -676,6 +730,7 @@ dnode_reallocate(dnode_t *dn, dmu_object_type_t ot, int blocksize,
mutex_enter(&dn->dn_mtx);
dn->dn_bonustype = bonustype;
dn->dn_bonuslen = bonuslen;
dn->dn_num_slots = dn_slots;
dn->dn_nblkptr = nblkptr;
dn->dn_checksum = ZIO_CHECKSUM_INHERIT;
dn->dn_compress = ZIO_COMPRESS_INHERIT;
@ -684,7 +739,8 @@ dnode_reallocate(dnode_t *dn, dmu_object_type_t ot, int blocksize,
/* fix up the bonus db_size */
if (dn->dn_bonus) {
dn->dn_bonus->db.db_size =
DN_MAX_BONUSLEN - (dn->dn_nblkptr-1) * sizeof (blkptr_t);
DN_SLOTS_TO_BONUSLEN(dn->dn_num_slots) -
(dn->dn_nblkptr - 1) * sizeof (blkptr_t);
ASSERT(dn->dn_bonuslen <= dn->dn_bonus->db.db_size);
}
@ -692,18 +748,6 @@ dnode_reallocate(dnode_t *dn, dmu_object_type_t ot, int blocksize,
mutex_exit(&dn->dn_mtx);
}
#ifdef DNODE_STATS
static struct {
uint64_t dms_dnode_invalid;
uint64_t dms_dnode_recheck1;
uint64_t dms_dnode_recheck2;
uint64_t dms_dnode_special;
uint64_t dms_dnode_handle;
uint64_t dms_dnode_rwlock;
uint64_t dms_dnode_active;
} dnode_move_stats;
#endif /* DNODE_STATS */
#ifdef _KERNEL
static void
dnode_move_impl(dnode_t *odn, dnode_t *ndn)
@ -733,6 +777,7 @@ dnode_move_impl(dnode_t *odn, dnode_t *ndn)
ndn->dn_datablkszsec = odn->dn_datablkszsec;
ndn->dn_datablksz = odn->dn_datablksz;
ndn->dn_maxblkid = odn->dn_maxblkid;
ndn->dn_num_slots = odn->dn_num_slots;
bcopy(&odn->dn_next_type[0], &ndn->dn_next_type[0],
sizeof (odn->dn_next_type));
bcopy(&odn->dn_next_nblkptr[0], &ndn->dn_next_nblkptr[0],
@ -863,7 +908,7 @@ dnode_move(void *buf, void *newbuf, size_t size, void *arg)
*/
os = odn->dn_objset;
if (!POINTER_IS_VALID(os)) {
DNODE_STAT_ADD(dnode_move_stats.dms_dnode_invalid);
DNODE_STAT_BUMP(dnode_move_invalid);
return (KMEM_CBRC_DONT_KNOW);
}
@ -873,7 +918,7 @@ dnode_move(void *buf, void *newbuf, size_t size, void *arg)
rw_enter(&os_lock, RW_WRITER);
if (os != odn->dn_objset) {
rw_exit(&os_lock);
DNODE_STAT_ADD(dnode_move_stats.dms_dnode_recheck1);
DNODE_STAT_BUMP(dnode_move_recheck1);
return (KMEM_CBRC_DONT_KNOW);
}
@ -891,7 +936,7 @@ dnode_move(void *buf, void *newbuf, size_t size, void *arg)
if (os != odn->dn_objset) {
mutex_exit(&os->os_lock);
rw_exit(&os_lock);
DNODE_STAT_ADD(dnode_move_stats.dms_dnode_recheck2);
DNODE_STAT_BUMP(dnode_move_recheck2);
return (KMEM_CBRC_DONT_KNOW);
}
@ -904,7 +949,7 @@ dnode_move(void *buf, void *newbuf, size_t size, void *arg)
rw_exit(&os_lock);
if (DMU_OBJECT_IS_SPECIAL(odn->dn_object)) {
mutex_exit(&os->os_lock);
DNODE_STAT_ADD(dnode_move_stats.dms_dnode_special);
DNODE_STAT_BUMP(dnode_move_special);
return (KMEM_CBRC_NO);
}
ASSERT(odn->dn_dbuf != NULL); /* only "special" dnodes have no parent */
@ -919,7 +964,7 @@ dnode_move(void *buf, void *newbuf, size_t size, void *arg)
*/
if (!zrl_tryenter(&odn->dn_handle->dnh_zrlock)) {
mutex_exit(&os->os_lock);
DNODE_STAT_ADD(dnode_move_stats.dms_dnode_handle);
DNODE_STAT_BUMP(dnode_move_handle);
return (KMEM_CBRC_LATER);
}
@ -935,7 +980,7 @@ dnode_move(void *buf, void *newbuf, size_t size, void *arg)
if (!rw_tryenter(&odn->dn_struct_rwlock, RW_WRITER)) {
zrl_exit(&odn->dn_handle->dnh_zrlock);
mutex_exit(&os->os_lock);
DNODE_STAT_ADD(dnode_move_stats.dms_dnode_rwlock);
DNODE_STAT_BUMP(dnode_move_rwlock);
return (KMEM_CBRC_LATER);
}
@ -961,7 +1006,7 @@ dnode_move(void *buf, void *newbuf, size_t size, void *arg)
rw_exit(&odn->dn_struct_rwlock);
zrl_exit(&odn->dn_handle->dnh_zrlock);
mutex_exit(&os->os_lock);
DNODE_STAT_ADD(dnode_move_stats.dms_dnode_active);
DNODE_STAT_BUMP(dnode_move_active);
return (KMEM_CBRC_LATER);
}
@ -985,6 +1030,132 @@ dnode_move(void *buf, void *newbuf, size_t size, void *arg)
}
#endif /* _KERNEL */
static void
dnode_slots_hold(dnode_children_t *children, int idx, int slots)
{
ASSERT3S(idx + slots, <=, DNODES_PER_BLOCK);
for (int i = idx; i < idx + slots; i++) {
dnode_handle_t *dnh = &children->dnc_children[i];
zrl_add(&dnh->dnh_zrlock);
}
}
static void
dnode_slots_rele(dnode_children_t *children, int idx, int slots)
{
ASSERT3S(idx + slots, <=, DNODES_PER_BLOCK);
for (int i = idx; i < idx + slots; i++) {
dnode_handle_t *dnh = &children->dnc_children[i];
if (zrl_is_locked(&dnh->dnh_zrlock))
zrl_exit(&dnh->dnh_zrlock);
else
zrl_remove(&dnh->dnh_zrlock);
}
}
static int
dnode_slots_tryenter(dnode_children_t *children, int idx, int slots)
{
ASSERT3S(idx + slots, <=, DNODES_PER_BLOCK);
for (int i = idx; i < idx + slots; i++) {
dnode_handle_t *dnh = &children->dnc_children[i];
if (!zrl_tryenter(&dnh->dnh_zrlock)) {
for (int j = idx; j < i; j++) {
dnh = &children->dnc_children[j];
zrl_exit(&dnh->dnh_zrlock);
}
return (0);
}
}
return (1);
}
static void
dnode_set_slots(dnode_children_t *children, int idx, int slots, void *ptr)
{
ASSERT3S(idx + slots, <=, DNODES_PER_BLOCK);
for (int i = idx; i < idx + slots; i++) {
dnode_handle_t *dnh = &children->dnc_children[i];
dnh->dnh_dnode = ptr;
}
}
static boolean_t
dnode_check_slots_free(dnode_children_t *children, int idx, int slots)
{
ASSERT3S(idx + slots, <=, DNODES_PER_BLOCK);
for (int i = idx; i < idx + slots; i++) {
dnode_handle_t *dnh = &children->dnc_children[i];
dnode_t *dn = dnh->dnh_dnode;
if (dn == DN_SLOT_FREE) {
continue;
} else if (DN_SLOT_IS_PTR(dn)) {
mutex_enter(&dn->dn_mtx);
dmu_object_type_t type = dn->dn_type;
mutex_exit(&dn->dn_mtx);
if (type != DMU_OT_NONE)
return (B_FALSE);
continue;
} else {
return (B_FALSE);
}
return (B_FALSE);
}
return (B_TRUE);
}
static void
dnode_reclaim_slots(dnode_children_t *children, int idx, int slots)
{
ASSERT3S(idx + slots, <=, DNODES_PER_BLOCK);
for (int i = idx; i < idx + slots; i++) {
dnode_handle_t *dnh = &children->dnc_children[i];
ASSERT(zrl_is_locked(&dnh->dnh_zrlock));
if (DN_SLOT_IS_PTR(dnh->dnh_dnode)) {
ASSERT3S(dnh->dnh_dnode->dn_type, ==, DMU_OT_NONE);
dnode_destroy(dnh->dnh_dnode);
dnh->dnh_dnode = DN_SLOT_FREE;
}
}
}
void
dnode_free_interior_slots(dnode_t *dn)
{
dnode_children_t *children = dmu_buf_get_user(&dn->dn_dbuf->db);
int epb = dn->dn_dbuf->db.db_size >> DNODE_SHIFT;
int idx = (dn->dn_object & (epb - 1)) + 1;
int slots = dn->dn_num_slots - 1;
if (slots == 0)
return;
ASSERT3S(idx + slots, <=, DNODES_PER_BLOCK);
while (!dnode_slots_tryenter(children, idx, slots))
DNODE_STAT_BUMP(dnode_free_interior_lock_retry);
dnode_set_slots(children, idx, slots, DN_SLOT_FREE);
dnode_slots_rele(children, idx, slots);
}
void
dnode_special_close(dnode_handle_t *dnh)
{
@ -992,7 +1163,7 @@ dnode_special_close(dnode_handle_t *dnh)
/*
* Wait for final references to the dnode to clear. This can
* only happen if the arc is asyncronously evicting state that
* only happen if the arc is asynchronously evicting state that
* has a hold on this dnode while we are trying to evict this
* dnode.
*/
@ -1012,19 +1183,24 @@ dnode_special_open(objset_t *os, dnode_phys_t *dnp, uint64_t object,
{
dnode_t *dn;
dn = dnode_create(os, dnp, NULL, object, dnh);
zrl_init(&dnh->dnh_zrlock);
zrl_tryenter(&dnh->dnh_zrlock);
dn = dnode_create(os, dnp, NULL, object, dnh);
DNODE_VERIFY(dn);
zrl_exit(&dnh->dnh_zrlock);
}
static void
dnode_buf_evict_async(void *dbu)
{
dnode_children_t *children_dnodes = dbu;
int i;
dnode_children_t *dnc = dbu;
for (i = 0; i < children_dnodes->dnc_count; i++) {
dnode_handle_t *dnh = &children_dnodes->dnc_children[i];
DNODE_STAT_BUMP(dnode_buf_evict);
for (int i = 0; i < dnc->dnc_count; i++) {
dnode_handle_t *dnh = &dnc->dnc_children[i];
dnode_t *dn;
/*
@ -1032,8 +1208,9 @@ dnode_buf_evict_async(void *dbu)
* another valid address, so there is no need here to guard
* against changes to or from NULL.
*/
if (dnh->dnh_dnode == NULL) {
if (!DN_SLOT_IS_PTR(dnh->dnh_dnode)) {
zrl_destroy(&dnh->dnh_zrlock);
dnh->dnh_dnode = DN_SLOT_UNINIT;
continue;
}
@ -1048,22 +1225,40 @@ dnode_buf_evict_async(void *dbu)
ASSERT(refcount_is_zero(&dn->dn_holds));
ASSERT(refcount_is_zero(&dn->dn_tx_holds));
dnode_destroy(dn); /* implicit zrl_remove() */
dnode_destroy(dn); /* implicit zrl_remove() for first slot */
zrl_destroy(&dnh->dnh_zrlock);
dnh->dnh_dnode = NULL;
dnh->dnh_dnode = DN_SLOT_UNINIT;
}
kmem_free(children_dnodes, sizeof (dnode_children_t) +
children_dnodes->dnc_count * sizeof (dnode_handle_t));
kmem_free(dnc, sizeof (dnode_children_t) +
dnc->dnc_count * sizeof (dnode_handle_t));
}
/*
* When the DNODE_MUST_BE_FREE flag is set, the "slots" parameter is used
* to ensure the hole at the specified object offset is large enough to
* hold the dnode being created. The slots parameter is also used to ensure
* a dnode does not span multiple dnode blocks. In both of these cases, if
* a failure occurs, ENOSPC is returned. Keep in mind, these failure cases
* are only possible when using DNODE_MUST_BE_FREE.
*
* If the DNODE_MUST_BE_ALLOCATED flag is set, "slots" must be 0.
* dnode_hold_impl() will check if the requested dnode is already consumed
* as an extra dnode slot by an large dnode, in which case it returns
* ENOENT.
*
* errors:
* EINVAL - invalid object number.
* EIO - i/o error.
* EINVAL - invalid object number or flags.
* ENOSPC - hole too small to fulfill "slots" request (DNODE_MUST_BE_FREE)
* EEXIST - Refers to an allocated dnode (DNODE_MUST_BE_FREE)
* - Refers to a freeing dnode (DNODE_MUST_BE_FREE)
* - Refers to an interior dnode slot (DNODE_MUST_BE_ALLOCATED)
* ENOENT - The requested dnode is not allocated (DNODE_MUST_BE_ALLOCATED)
* - The requested dnode is being freed (DNODE_MUST_BE_ALLOCATED)
* EIO - i/o error error when reading the meta dnode dbuf.
* succeeds even for free dnodes.
*/
int
dnode_hold_impl(objset_t *os, uint64_t object, int flag,
dnode_hold_impl(objset_t *os, uint64_t object, int flag, int slots,
void *tag, dnode_t **dnp)
{
int epb, idx, err;
@ -1072,9 +1267,13 @@ dnode_hold_impl(objset_t *os, uint64_t object, int flag,
uint64_t blk;
dnode_t *mdn, *dn;
dmu_buf_impl_t *db;
dnode_children_t *children_dnodes;
dnode_children_t *dnc;
dnode_phys_t *dn_block;
dnode_handle_t *dnh;
ASSERT(!(flag & DNODE_MUST_BE_ALLOCATED) || (slots == 0));
ASSERT(!(flag & DNODE_MUST_BE_FREE) || (slots > 0));
/*
* If you are holding the spa config lock as writer, you shouldn't
* be asking the DMU to do *anything* unless it's the root pool
@ -1121,10 +1320,13 @@ dnode_hold_impl(objset_t *os, uint64_t object, int flag,
db = dbuf_hold(mdn, blk, FTAG);
if (drop_struct_lock)
rw_exit(&mdn->dn_struct_rwlock);
if (db == NULL)
if (db == NULL) {
DNODE_STAT_BUMP(dnode_hold_dbuf_hold);
return (SET_ERROR(EIO));
}
err = dbuf_read(db, NULL, DB_RF_CANFAIL);
if (err) {
DNODE_STAT_BUMP(dnode_hold_dbuf_read);
dbuf_rele(db, FTAG);
return (err);
}
@ -1132,62 +1334,194 @@ dnode_hold_impl(objset_t *os, uint64_t object, int flag,
ASSERT3U(db->db.db_size, >=, 1<<DNODE_SHIFT);
epb = db->db.db_size >> DNODE_SHIFT;
idx = object & (epb-1);
idx = object & (epb - 1);
dn_block = (dnode_phys_t *)db->db.db_data;
ASSERT(DB_DNODE(db)->dn_type == DMU_OT_DNODE);
children_dnodes = dmu_buf_get_user(&db->db);
if (children_dnodes == NULL) {
int i;
dnc = dmu_buf_get_user(&db->db);
dnh = NULL;
if (dnc == NULL) {
dnode_children_t *winner;
children_dnodes = kmem_zalloc(sizeof (dnode_children_t) +
epb * sizeof (dnode_handle_t), KM_SLEEP);
children_dnodes->dnc_count = epb;
dnh = &children_dnodes->dnc_children[0];
for (i = 0; i < epb; i++) {
zrl_init(&dnh[i].dnh_zrlock);
}
dmu_buf_init_user(&children_dnodes->dnc_dbu, NULL,
dnode_buf_evict_async, NULL);
winner = dmu_buf_set_user(&db->db, &children_dnodes->dnc_dbu);
if (winner != NULL) {
int skip = 0;
for (i = 0; i < epb; i++) {
zrl_destroy(&dnh[i].dnh_zrlock);
dnc = kmem_zalloc(sizeof (dnode_children_t) +
epb * sizeof (dnode_handle_t), KM_SLEEP);
dnc->dnc_count = epb;
dnh = &dnc->dnc_children[0];
/* Initialize dnode slot status from dnode_phys_t */
for (int i = 0; i < epb; i++) {
zrl_init(&dnh[i].dnh_zrlock);
if (skip) {
skip--;
continue;
}
kmem_free(children_dnodes, sizeof (dnode_children_t) +
if (dn_block[i].dn_type != DMU_OT_NONE) {
int interior = dn_block[i].dn_extra_slots;
dnode_set_slots(dnc, i, 1, DN_SLOT_ALLOCATED);
dnode_set_slots(dnc, i + 1, interior,
DN_SLOT_INTERIOR);
skip = interior;
} else {
dnh[i].dnh_dnode = DN_SLOT_FREE;
skip = 0;
}
}
dmu_buf_init_user(&dnc->dnc_dbu, NULL,
dnode_buf_evict_async, NULL);
winner = dmu_buf_set_user(&db->db, &dnc->dnc_dbu);
if (winner != NULL) {
for (int i = 0; i < epb; i++)
zrl_destroy(&dnh[i].dnh_zrlock);
kmem_free(dnc, sizeof (dnode_children_t) +
epb * sizeof (dnode_handle_t));
children_dnodes = winner;
dnc = winner;
}
}
ASSERT(children_dnodes->dnc_count == epb);
dnh = &children_dnodes->dnc_children[idx];
zrl_add(&dnh->dnh_zrlock);
dn = dnh->dnh_dnode;
if (dn == NULL) {
dnode_phys_t *phys = (dnode_phys_t *)db->db.db_data+idx;
ASSERT(dnc->dnc_count == epb);
dn = DN_SLOT_UNINIT;
dn = dnode_create(os, phys, db, object, dnh);
}
if (flag & DNODE_MUST_BE_ALLOCATED) {
slots = 1;
mutex_enter(&dn->dn_mtx);
type = dn->dn_type;
if (dn->dn_free_txg ||
((flag & DNODE_MUST_BE_ALLOCATED) && type == DMU_OT_NONE) ||
((flag & DNODE_MUST_BE_FREE) &&
(type != DMU_OT_NONE || !refcount_is_zero(&dn->dn_holds)))) {
mutex_exit(&dn->dn_mtx);
zrl_remove(&dnh->dnh_zrlock);
while (dn == DN_SLOT_UNINIT) {
dnode_slots_hold(dnc, idx, slots);
dnh = &dnc->dnc_children[idx];
if (DN_SLOT_IS_PTR(dnh->dnh_dnode)) {
dn = dnh->dnh_dnode;
break;
} else if (dnh->dnh_dnode == DN_SLOT_INTERIOR) {
DNODE_STAT_BUMP(dnode_hold_alloc_interior);
dnode_slots_rele(dnc, idx, slots);
dbuf_rele(db, FTAG);
return (SET_ERROR(EEXIST));
} else if (dnh->dnh_dnode != DN_SLOT_ALLOCATED) {
DNODE_STAT_BUMP(dnode_hold_alloc_misses);
dnode_slots_rele(dnc, idx, slots);
dbuf_rele(db, FTAG);
return (SET_ERROR(ENOENT));
}
dnode_slots_rele(dnc, idx, slots);
if (!dnode_slots_tryenter(dnc, idx, slots)) {
DNODE_STAT_BUMP(dnode_hold_alloc_lock_retry);
continue;
}
/*
* Someone else won the race and called dnode_create()
* after we checked DN_SLOT_IS_PTR() above but before
* we acquired the lock.
*/
if (DN_SLOT_IS_PTR(dnh->dnh_dnode)) {
DNODE_STAT_BUMP(dnode_hold_alloc_lock_misses);
dn = dnh->dnh_dnode;
} else {
dn = dnode_create(os, dn_block + idx, db,
object, dnh);
}
}
mutex_enter(&dn->dn_mtx);
if (dn->dn_type == DMU_OT_NONE || dn->dn_free_txg != 0) {
DNODE_STAT_BUMP(dnode_hold_alloc_type_none);
mutex_exit(&dn->dn_mtx);
dnode_slots_rele(dnc, idx, slots);
dbuf_rele(db, FTAG);
return (SET_ERROR(ENOENT));
}
DNODE_STAT_BUMP(dnode_hold_alloc_hits);
} else if (flag & DNODE_MUST_BE_FREE) {
if (idx + slots - 1 >= DNODES_PER_BLOCK) {
DNODE_STAT_BUMP(dnode_hold_free_overflow);
dbuf_rele(db, FTAG);
return (SET_ERROR(ENOSPC));
}
while (dn == DN_SLOT_UNINIT) {
dnode_slots_hold(dnc, idx, slots);
if (!dnode_check_slots_free(dnc, idx, slots)) {
DNODE_STAT_BUMP(dnode_hold_free_misses);
dnode_slots_rele(dnc, idx, slots);
dbuf_rele(db, FTAG);
return (SET_ERROR(ENOSPC));
}
dnode_slots_rele(dnc, idx, slots);
if (!dnode_slots_tryenter(dnc, idx, slots)) {
DNODE_STAT_BUMP(dnode_hold_free_lock_retry);
continue;
}
if (!dnode_check_slots_free(dnc, idx, slots)) {
DNODE_STAT_BUMP(dnode_hold_free_lock_misses);
dnode_slots_rele(dnc, idx, slots);
dbuf_rele(db, FTAG);
return (SET_ERROR(ENOSPC));
}
/*
* Allocated but otherwise free dnodes which would
* be in the interior of a multi-slot dnodes need
* to be freed. Single slot dnodes can be safely
* re-purposed as a performance optimization.
*/
if (slots > 1)
dnode_reclaim_slots(dnc, idx + 1, slots - 1);
dnh = &dnc->dnc_children[idx];
if (DN_SLOT_IS_PTR(dnh->dnh_dnode)) {
dn = dnh->dnh_dnode;
} else {
dn = dnode_create(os, dn_block + idx, db,
object, dnh);
}
}
mutex_enter(&dn->dn_mtx);
if (!refcount_is_zero(&dn->dn_holds) || dn->dn_free_txg) {
DNODE_STAT_BUMP(dnode_hold_free_refcount);
mutex_exit(&dn->dn_mtx);
dnode_slots_rele(dnc, idx, slots);
dbuf_rele(db, FTAG);
return (SET_ERROR(EEXIST));
}
dnode_set_slots(dnc, idx + 1, slots - 1, DN_SLOT_INTERIOR);
DNODE_STAT_BUMP(dnode_hold_free_hits);
} else {
dbuf_rele(db, FTAG);
return ((flag & DNODE_MUST_BE_ALLOCATED) ? ENOENT : EEXIST);
return (SET_ERROR(EINVAL));
}
if (dn->dn_free_txg) {
DNODE_STAT_BUMP(dnode_hold_free_txg);
type = dn->dn_type;
mutex_exit(&dn->dn_mtx);
dnode_slots_rele(dnc, idx, slots);
dbuf_rele(db, FTAG);
return (SET_ERROR((flag & DNODE_MUST_BE_ALLOCATED) ?
ENOENT : EEXIST));
}
if (refcount_add(&dn->dn_holds, tag) == 1)
dbuf_add_ref(db, dnh);
mutex_exit(&dn->dn_mtx);
/* Now we can rely on the hold to prevent the dnode from moving. */
zrl_remove(&dnh->dnh_zrlock);
dnode_slots_rele(dnc, idx, slots);
DNODE_VERIFY(dn);
ASSERT3P(dn->dn_dbuf, ==, db);
@ -1204,7 +1538,8 @@ dnode_hold_impl(objset_t *os, uint64_t object, int flag,
int
dnode_hold(objset_t *os, uint64_t object, void *tag, dnode_t **dnp)
{
return (dnode_hold_impl(os, object, DNODE_MUST_BE_ALLOCATED, tag, dnp));
return (dnode_hold_impl(os, object, DNODE_MUST_BE_ALLOCATED, 0, tag,
dnp));
}
/*
@ -1936,17 +2271,21 @@ dnode_next_offset_level(dnode_t *dn, int flags, uint64_t *offset,
error = SET_ERROR(ESRCH);
} else if (lvl == 0) {
dnode_phys_t *dnp = data;
span = DNODE_SHIFT;
ASSERT(dn->dn_type == DMU_OT_DNODE);
for (i = (*offset >> span) & (blkfill - 1);
i >= 0 && i < blkfill; i += inc) {
ASSERT(dn->dn_type == DMU_OT_DNODE);
ASSERT(!(flags & DNODE_FIND_BACKWARDS));
for (i = (*offset >> DNODE_SHIFT) & (blkfill - 1);
i < blkfill; i += dnp[i].dn_extra_slots + 1) {
if ((dnp[i].dn_type == DMU_OT_NONE) == hole)
break;
*offset += (1ULL << span) * inc;
}
if (i < 0 || i == blkfill)
if (i == blkfill)
error = SET_ERROR(ESRCH);
*offset = (*offset & ~(DNODE_BLOCK_SIZE - 1)) +
(i << DNODE_SHIFT);
} else {
blkptr_t *bp = data;
uint64_t start = *offset;

22
uts/common/fs/zfs/dnode_sync.c
View File

@ -553,7 +553,8 @@ dnode_sync_free(dnode_t *dn, dmu_tx_t *tx)
ASSERT(dn->dn_free_txg > 0);
if (dn->dn_allocated_txg != dn->dn_free_txg)
dmu_buf_will_dirty(&dn->dn_dbuf->db, tx);
bzero(dn->dn_phys, sizeof (dnode_phys_t));
bzero(dn->dn_phys, sizeof (dnode_phys_t) * dn->dn_num_slots);
dnode_free_interior_slots(dn);
mutex_enter(&dn->dn_mtx);
dn->dn_type = DMU_OT_NONE;
@ -561,6 +562,7 @@ dnode_sync_free(dnode_t *dn, dmu_tx_t *tx)
dn->dn_allocated_txg = 0;
dn->dn_free_txg = 0;
dn->dn_have_spill = B_FALSE;
dn->dn_num_slots = 1;
mutex_exit(&dn->dn_mtx);
ASSERT(dn->dn_object != DMU_META_DNODE_OBJECT);
@ -587,7 +589,7 @@ dnode_sync(dnode_t *dn, dmu_tx_t *tx)
ASSERT(dmu_tx_is_syncing(tx));
ASSERT(dnp->dn_type != DMU_OT_NONE || dn->dn_allocated_txg);
ASSERT(dnp->dn_type != DMU_OT_NONE ||
bcmp(dnp, &zerodn, DNODE_SIZE) == 0);
bcmp(dnp, &zerodn, DNODE_MIN_SIZE) == 0);
DNODE_VERIFY(dn);
ASSERT(dn->dn_dbuf == NULL || arc_released(dn->dn_dbuf->db_buf));
@ -619,6 +621,9 @@ dnode_sync(dnode_t *dn, dmu_tx_t *tx)
dnp->dn_bonustype = dn->dn_bonustype;
dnp->dn_bonuslen = dn->dn_bonuslen;
}
dnp->dn_extra_slots = dn->dn_num_slots - 1;
ASSERT(dnp->dn_nlevels > 1 ||
BP_IS_HOLE(&dnp->dn_blkptr[0]) ||
BP_IS_EMBEDDED(&dnp->dn_blkptr[0]) ||
@ -651,7 +656,8 @@ dnode_sync(dnode_t *dn, dmu_tx_t *tx)
dnp->dn_bonuslen = 0;
else
dnp->dn_bonuslen = dn->dn_next_bonuslen[txgoff];
ASSERT(dnp->dn_bonuslen <= DN_MAX_BONUSLEN);
ASSERT(dnp->dn_bonuslen <=
DN_SLOTS_TO_BONUSLEN(dnp->dn_extra_slots + 1));
dn->dn_next_bonuslen[txgoff] = 0;
}
@ -691,7 +697,7 @@ dnode_sync(dnode_t *dn, dmu_tx_t *tx)
mutex_exit(&dn->dn_mtx);
if (kill_spill) {
free_blocks(dn, &dn->dn_phys->dn_spill, 1, tx);
free_blocks(dn, DN_SPILL_BLKPTR(dn->dn_phys), 1, tx);
mutex_enter(&dn->dn_mtx);
dnp->dn_flags &= ~DNODE_FLAG_SPILL_BLKPTR;
mutex_exit(&dn->dn_mtx);
@ -721,6 +727,14 @@ dnode_sync(dnode_t *dn, dmu_tx_t *tx)
return;
}
if (dn->dn_num_slots > DNODE_MIN_SLOTS) {
dsl_dataset_t *ds = dn->dn_objset->os_dsl_dataset;
mutex_enter(&ds->ds_lock);
ds->ds_feature_activation_needed[SPA_FEATURE_LARGE_DNODE] =
B_TRUE;
mutex_exit(&ds->ds_lock);
}
if (dn->dn_next_nlevels[txgoff]) {
dnode_increase_indirection(dn, tx);
dn->dn_next_nlevels[txgoff] = 0;

10
uts/common/fs/zfs/dsl_scan.c
View File

@ -773,14 +773,18 @@ dsl_scan_recurse(dsl_scan_t *scn, dsl_dataset_t *ds, dmu_objset_type_t ostype,
scn->scn_phys.scn_errors++;
return (err);
}
for (i = 0, cdnp = buf->b_data; i < epb; i++, cdnp++) {
for (i = 0, cdnp = buf->b_data; i < epb;
i += cdnp->dn_extra_slots + 1,
cdnp += cdnp->dn_extra_slots + 1) {
for (j = 0; j < cdnp->dn_nblkptr; j++) {
blkptr_t *cbp = &cdnp->dn_blkptr[j];
dsl_scan_prefetch(scn, buf, cbp,
zb->zb_objset, zb->zb_blkid * epb + i, j);
}
}
for (i = 0, cdnp = buf->b_data; i < epb; i++, cdnp++) {
for (i = 0, cdnp = buf->b_data; i < epb;
i += cdnp->dn_extra_slots + 1,
cdnp += cdnp->dn_extra_slots + 1) {
dsl_scan_visitdnode(scn, ds, ostype,
cdnp, zb->zb_blkid * epb + i, tx);
}
@ -843,7 +847,7 @@ dsl_scan_visitdnode(dsl_scan_t *scn, dsl_dataset_t *ds,
zbookmark_phys_t czb;
SET_BOOKMARK(&czb, ds ? ds->ds_object : 0, object,
0, DMU_SPILL_BLKID);
dsl_scan_visitbp(&dnp->dn_spill,
dsl_scan_visitbp(DN_SPILL_BLKPTR(dnp),
&czb, dnp, ds, scn, ostype, tx);
}
}

20
uts/common/fs/zfs/sa.c
View File

@ -35,6 +35,7 @@
#include <sys/dmu.h>
#include <sys/dmu_impl.h>
#include <sys/dmu_objset.h>
#include <sys/dmu_tx.h>
#include <sys/dbuf.h>
#include <sys/dnode.h>
#include <sys/zap.h>
@ -543,12 +544,11 @@ sa_copy_data(sa_data_locator_t *func, void *datastart, void *target, int buflen)
*/
static int
sa_find_sizes(sa_os_t *sa, sa_bulk_attr_t *attr_desc, int attr_count,
dmu_buf_t *db, sa_buf_type_t buftype, int *index, int *total,
boolean_t *will_spill)
dmu_buf_t *db, sa_buf_type_t buftype, int full_space, int *index,
int *total, boolean_t *will_spill)
{
int var_size = 0;
int i;
int full_space;
int hdrsize;
int extra_hdrsize;
@ -567,7 +567,6 @@ sa_find_sizes(sa_os_t *sa, sa_bulk_attr_t *attr_desc, int attr_count,
hdrsize = (SA_BONUSTYPE_FROM_DB(db) == DMU_OT_ZNODE) ? 0 :
sizeof (sa_hdr_phys_t);
full_space = (buftype == SA_BONUS) ? DN_MAX_BONUSLEN : db->db_size;
ASSERT(IS_P2ALIGNED(full_space, 8));
for (i = 0; i != attr_count; i++) {
@ -653,6 +652,7 @@ sa_build_layouts(sa_handle_t *hdl, sa_bulk_attr_t *attr_desc, int attr_count,
int buf_space;
sa_attr_type_t *attrs, *attrs_start;
int i, lot_count;
int dnodesize;
int hdrsize;
int spillhdrsize = 0;
int used;
@ -660,20 +660,24 @@ sa_build_layouts(sa_handle_t *hdl, sa_bulk_attr_t *attr_desc, int attr_count,
sa_lot_t *lot;
int len_idx;
int spill_used;
int bonuslen;
boolean_t spilling;
dmu_buf_will_dirty(hdl->sa_bonus, tx);
bonustype = SA_BONUSTYPE_FROM_DB(hdl->sa_bonus);
dmu_object_dnsize_from_db(hdl->sa_bonus, &dnodesize);
bonuslen = DN_BONUS_SIZE(dnodesize);
/* first determine bonus header size and sum of all attributes */
hdrsize = sa_find_sizes(sa, attr_desc, attr_count, hdl->sa_bonus,
SA_BONUS, &i, &used, &spilling);
SA_BONUS, bonuslen, &i, &used, &spilling);
if (used > SPA_OLD_MAXBLOCKSIZE)
return (SET_ERROR(EFBIG));
VERIFY(0 == dmu_set_bonus(hdl->sa_bonus, spilling ?
MIN(DN_MAX_BONUSLEN - sizeof (blkptr_t), used + hdrsize) :
MIN(bonuslen - sizeof (blkptr_t), used + hdrsize) :
used + hdrsize, tx));
ASSERT((bonustype == DMU_OT_ZNODE && spilling == 0) ||
@ -690,8 +694,8 @@ sa_build_layouts(sa_handle_t *hdl, sa_bulk_attr_t *attr_desc, int attr_count,
dmu_buf_will_dirty(hdl->sa_spill, tx);
spillhdrsize = sa_find_sizes(sa, &attr_desc[i],
attr_count - i, hdl->sa_spill, SA_SPILL, &i,
&spill_used, &dummy);
attr_count - i, hdl->sa_spill, SA_SPILL,
hdl->sa_spill->db_size, &i, &spill_used, &dummy);
if (spill_used > SPA_OLD_MAXBLOCKSIZE)
return (SET_ERROR(EFBIG));

11
uts/common/fs/zfs/spa.c
View File

@ -350,6 +350,14 @@ spa_prop_get_config(spa_t *spa, nvlist_t **nvp)
SPA_OLD_MAXBLOCKSIZE, ZPROP_SRC_NONE);
}
if (spa_feature_is_enabled(spa, SPA_FEATURE_LARGE_DNODE)) {
spa_prop_add_list(*nvp, ZPOOL_PROP_MAXDNODESIZE, NULL,
DNODE_MAX_SIZE, ZPROP_SRC_NONE);
} else {
spa_prop_add_list(*nvp, ZPOOL_PROP_MAXDNODESIZE, NULL,
DNODE_MIN_SIZE, ZPROP_SRC_NONE);
}
if ((dp = list_head(&spa->spa_config_list)) != NULL) {
if (dp->scd_path == NULL) {
spa_prop_add_list(*nvp, ZPOOL_PROP_CACHEFILE,
@ -577,8 +585,7 @@ spa_prop_validate(spa_t *spa, nvlist_t *props)
/*
* Must be ZPL, and its property settings
* must be supported by GRUB (compression
* is not gzip, and large blocks are not used).
* must be supported.
*/
if (dmu_objset_type(os) != DMU_OST_ZFS) {

15
uts/common/fs/zfs/spa_misc.c
View File

@ -990,10 +990,10 @@ spa_aux_activate(vdev_t *vd, avl_tree_t *avl)
/*
* Spares are tracked globally due to the following constraints:
*
* - A spare may be part of multiple pools.
* - A spare may be added to a pool even if it's actively in use within
* - A spare may be part of multiple pools.
* - A spare may be added to a pool even if it's actively in use within
* another pool.
* - A spare in use in any pool can only be the source of a replacement if
* - A spare in use in any pool can only be the source of a replacement if
* the target is a spare in the same pool.
*
* We keep track of all spares on the system through the use of a reference
@ -2104,6 +2104,15 @@ spa_maxblocksize(spa_t *spa)
return (SPA_OLD_MAXBLOCKSIZE);
}
int
spa_maxdnodesize(spa_t *spa)
{
if (spa_feature_is_enabled(spa, SPA_FEATURE_LARGE_DNODE))
return (DNODE_MAX_SIZE);
else
return (DNODE_MIN_SIZE);
}
/*
* Returns the txg that the last device removal completed. No indirect mappings
* have been added since this txg.

1
uts/common/fs/zfs/sys/arc.h
View File

@ -149,6 +149,7 @@ typedef enum arc_space_type {
ARC_SPACE_HDRS,
ARC_SPACE_L2HDRS,
ARC_SPACE_OTHER,
ARC_SPACE_BONUS,
ARC_SPACE_NUMTYPES
} arc_space_type_t;

15
uts/common/fs/zfs/sys/dmu.h
View File

@ -358,6 +358,15 @@ uint64_t dmu_object_alloc(objset_t *os, dmu_object_type_t ot,
uint64_t dmu_object_alloc_ibs(objset_t *os, dmu_object_type_t ot, int blocksize,
int indirect_blockshift,
dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx);
uint64_t dmu_object_alloc_dnsize(objset_t *os, dmu_object_type_t ot,
int blocksize, dmu_object_type_t bonus_type, int bonus_len,
int dnodesize, dmu_tx_t *tx);
int dmu_object_claim_dnsize(objset_t *os, uint64_t object, dmu_object_type_t ot,
int blocksize, dmu_object_type_t bonus_type, int bonus_len,
int dnodesize, dmu_tx_t *tx);
int dmu_object_reclaim_dnsize(objset_t *os, uint64_t object,
dmu_object_type_t ot, int blocksize, dmu_object_type_t bonustype,
int bonuslen, int dnodesize, dmu_tx_t *txp);
int dmu_object_claim(objset_t *os, uint64_t object, dmu_object_type_t ot,
int blocksize, dmu_object_type_t bonus_type, int bonus_len, dmu_tx_t *tx);
int dmu_object_reclaim(objset_t *os, uint64_t object, dmu_object_type_t ot,
@ -804,7 +813,8 @@ typedef struct dmu_object_info {
uint8_t doi_checksum;
uint8_t doi_compress;
uint8_t doi_nblkptr;
uint8_t doi_pad[4];
int8_t doi_pad[4];
uint64_t doi_dnodesize;
uint64_t doi_physical_blocks_512; /* data + metadata, 512b blks */
uint64_t doi_max_offset;
uint64_t doi_fill_count; /* number of non-empty blocks */
@ -846,6 +856,8 @@ void dmu_object_info_from_db(dmu_buf_t *db, dmu_object_info_t *doi);
void dmu_object_size_from_db(dmu_buf_t *db, uint32_t *blksize,
u_longlong_t *nblk512);
void dmu_object_dnsize_from_db(dmu_buf_t *db, int *dnsize);
typedef struct dmu_objset_stats {
uint64_t dds_num_clones; /* number of clones of this */
uint64_t dds_creation_txg;
@ -903,6 +915,7 @@ extern struct dsl_dataset *dmu_objset_ds(objset_t *os);
extern void dmu_objset_name(objset_t *os, char *buf);
extern dmu_objset_type_t dmu_objset_type(objset_t *os);
extern uint64_t dmu_objset_id(objset_t *os);
extern uint64_t dmu_objset_dnodesize(objset_t *os);
extern zfs_sync_type_t dmu_objset_syncprop(objset_t *os);
extern zfs_logbias_op_t dmu_objset_logbias(objset_t *os);
extern int dmu_snapshot_list_next(objset_t *os, int namelen, char *name,

7
uts/common/fs/zfs/sys/dmu_objset.h
View File

@ -91,6 +91,7 @@ struct objset {
list_node_t os_evicting_node;
/* can change, under dsl_dir's locks: */
uint64_t os_dnodesize; /* default dnode size for new objects */
enum zio_checksum os_checksum;
enum zio_compress os_compress;
uint8_t os_copies;
@ -129,7 +130,11 @@ struct objset {
/* Protected by os_obj_lock */
kmutex_t os_obj_lock;
uint64_t os_obj_next;
uint64_t os_obj_next_chunk;
/* Per-CPU next object to allocate, protected by atomic ops. */
uint64_t *os_obj_next_percpu;
int os_obj_next_percpu_len;
/* Protected by os_lock */
kmutex_t os_lock;

246
uts/common/fs/zfs/sys/dnode.h
View File

@ -86,12 +86,26 @@ extern "C" {
/*
* Derived constants.
*/
#define DNODE_SIZE (1 << DNODE_SHIFT)
#define DN_MAX_NBLKPTR ((DNODE_SIZE - DNODE_CORE_SIZE) >> SPA_BLKPTRSHIFT)
#define DN_MAX_BONUSLEN (DNODE_SIZE - DNODE_CORE_SIZE - (1 << SPA_BLKPTRSHIFT))
#define DN_MAX_OBJECT (1ULL << DN_MAX_OBJECT_SHIFT)
#define DN_ZERO_BONUSLEN (DN_MAX_BONUSLEN + 1)
#define DN_KILL_SPILLBLK (1)
#define DNODE_MIN_SIZE (1 << DNODE_SHIFT)
#define DNODE_MAX_SIZE (1 << DNODE_BLOCK_SHIFT)
#define DNODE_BLOCK_SIZE (1 << DNODE_BLOCK_SHIFT)
#define DNODE_MIN_SLOTS (DNODE_MIN_SIZE >> DNODE_SHIFT)
#define DNODE_MAX_SLOTS (DNODE_MAX_SIZE >> DNODE_SHIFT)
#define DN_BONUS_SIZE(dnsize) ((dnsize) - DNODE_CORE_SIZE - \
(1 << SPA_BLKPTRSHIFT))
#define DN_SLOTS_TO_BONUSLEN(slots) DN_BONUS_SIZE((slots) << DNODE_SHIFT)
#define DN_OLD_MAX_BONUSLEN (DN_BONUS_SIZE(DNODE_MIN_SIZE))
#define DN_MAX_NBLKPTR ((DNODE_MIN_SIZE - DNODE_CORE_SIZE) >> SPA_BLKPTRSHIFT)
#define DN_MAX_OBJECT (1ULL << DN_MAX_OBJECT_SHIFT)
#define DN_ZERO_BONUSLEN (DN_BONUS_SIZE(DNODE_MAX_SIZE) + 1)
#define DN_KILL_SPILLBLK (1)
#define DN_SLOT_UNINIT ((void *)NULL) /* Uninitialized */
#define DN_SLOT_FREE ((void *)1UL) /* Free slot */
#define DN_SLOT_ALLOCATED ((void *)2UL) /* Allocated slot */
#define DN_SLOT_INTERIOR ((void *)3UL) /* Interior allocated slot */
#define DN_SLOT_IS_PTR(dn) ((void *)dn > DN_SLOT_INTERIOR)
#define DN_SLOT_IS_VALID(dn) ((void *)dn != NULL)
#define DNODES_PER_BLOCK_SHIFT (DNODE_BLOCK_SHIFT - DNODE_SHIFT)
#define DNODES_PER_BLOCK (1ULL << DNODES_PER_BLOCK_SHIFT)
@ -109,6 +123,10 @@ extern "C" {
#define DN_BONUS(dnp) ((void*)((dnp)->dn_bonus + \
(((dnp)->dn_nblkptr - 1) * sizeof (blkptr_t))))
#define DN_MAX_BONUS_LEN(dnp) \
((dnp->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? \
(uint8_t *)DN_SPILL_BLKPTR(dnp) - (uint8_t *)DN_BONUS(dnp) : \
(uint8_t *)(dnp + (dnp->dn_extra_slots + 1)) - (uint8_t *)DN_BONUS(dnp))
#define DN_USED_BYTES(dnp) (((dnp)->dn_flags & DNODE_FLAG_USED_BYTES) ? \
(dnp)->dn_used : (dnp)->dn_used << SPA_MINBLOCKSHIFT)
@ -132,6 +150,57 @@ enum dnode_dirtycontext {
/* Does dnode have a SA spill blkptr in bonus? */
#define DNODE_FLAG_SPILL_BLKPTR (1<<2)
/*
* VARIABLE-LENGTH (LARGE) DNODES
*
* The motivation for variable-length dnodes is to eliminate the overhead
* associated with using spill blocks. Spill blocks are used to store
* system attribute data (i.e. file metadata) that does not fit in the
* dnode's bonus buffer. By allowing a larger bonus buffer area the use of
* a spill block can be avoided. Spill blocks potentially incur an
* additional read I/O for every dnode in a dnode block. As a worst case
* example, reading 32 dnodes from a 16k dnode block and all of the spill
* blocks could issue 33 separate reads. Now suppose those dnodes have size
* 1024 and therefore don't need spill blocks. Then the worst case number
* of blocks read is reduced to from 33 to two--one per dnode block.
*
* ZFS-on-Linux systems that make heavy use of extended attributes benefit
* from this feature. In particular, ZFS-on-Linux supports the xattr=sa
* dataset property which allows file extended attribute data to be stored
* in the dnode bonus buffer as an alternative to the traditional
* directory-based format. Workloads such as SELinux and the Lustre
* distributed filesystem often store enough xattr data to force spill
* blocks when xattr=sa is in effect. Large dnodes may therefore provide a
* performance benefit to such systems. Other use cases that benefit from
* this feature include files with large ACLs and symbolic links with long
* target names.
*
* The size of a dnode may be a multiple of 512 bytes up to the size of a
* dnode block (currently 16384 bytes). The dn_extra_slots field of the
* on-disk dnode_phys_t structure describes the size of the physical dnode
* on disk. The field represents how many "extra" dnode_phys_t slots a
* dnode consumes in its dnode block. This convention results in a value of
* 0 for 512 byte dnodes which preserves on-disk format compatibility with
* older software which doesn't support large dnodes.
*
* Similarly, the in-memory dnode_t structure has a dn_num_slots field
* to represent the total number of dnode_phys_t slots consumed on disk.
* Thus dn->dn_num_slots is 1 greater than the corresponding
* dnp->dn_extra_slots. This difference in convention was adopted
* because, unlike on-disk structures, backward compatibility is not a
* concern for in-memory objects, so we used a more natural way to
* represent size for a dnode_t.
*
* The default size for newly created dnodes is determined by the value of
* the "dnodesize" dataset property. By default the property is set to
* "legacy" which is compatible with older software. Setting the property
* to "auto" will allow the filesystem to choose the most suitable dnode
* size. Currently this just sets the default dnode size to 1k, but future
* code improvements could dynamically choose a size based on observed
* workload patterns. Dnodes of varying sizes can coexist within the same
* dataset and even within the same dnode block.
*/
typedef struct dnode_phys {
uint8_t dn_type; /* dmu_object_type_t */
uint8_t dn_indblkshift; /* ln2(indirect block size) */
@ -143,19 +212,32 @@ typedef struct dnode_phys {
uint8_t dn_flags; /* DNODE_FLAG_* */
uint16_t dn_datablkszsec; /* data block size in 512b sectors */
uint16_t dn_bonuslen; /* length of dn_bonus */
uint8_t dn_pad2[4];
uint8_t dn_extra_slots; /* # of subsequent slots consumed */
uint8_t dn_pad2[3];
/* accounting is protected by dn_dirty_mtx */
uint64_t dn_maxblkid; /* largest allocated block ID */
uint64_t dn_used; /* bytes (or sectors) of disk space */
uint64_t dn_pad3[4];
blkptr_t dn_blkptr[1];
uint8_t dn_bonus[DN_MAX_BONUSLEN - sizeof (blkptr_t)];
blkptr_t dn_spill;
union {
blkptr_t dn_blkptr[1+DN_OLD_MAX_BONUSLEN/sizeof (blkptr_t)];
struct {
blkptr_t __dn_ignore1;
uint8_t dn_bonus[DN_OLD_MAX_BONUSLEN];
};
struct {
blkptr_t __dn_ignore2;
uint8_t __dn_ignore3[DN_OLD_MAX_BONUSLEN -
sizeof (blkptr_t)];
blkptr_t dn_spill;
};
};
} dnode_phys_t;
#define DN_SPILL_BLKPTR(dnp) (blkptr_t *)((char *)(dnp) + \
(((dnp)->dn_extra_slots + 1) << DNODE_SHIFT) - (1 << SPA_BLKPTRSHIFT))
struct dnode {
/*
* Protects the structure of the dnode, including the number of levels
@ -192,6 +274,7 @@ struct dnode {
uint32_t dn_datablksz; /* in bytes */
uint64_t dn_maxblkid;
uint8_t dn_next_type[TXG_SIZE];
uint8_t dn_num_slots; /* metadnode slots consumed on disk */
uint8_t dn_next_nblkptr[TXG_SIZE];
uint8_t dn_next_nlevels[TXG_SIZE];
uint8_t dn_next_indblkshift[TXG_SIZE];
@ -287,7 +370,7 @@ void dnode_rm_spill(dnode_t *dn, dmu_tx_t *tx);
int dnode_hold(struct objset *dd, uint64_t object,
void *ref, dnode_t **dnp);
int dnode_hold_impl(struct objset *dd, uint64_t object, int flag,
int dnode_hold_impl(struct objset *dd, uint64_t object, int flag, int dn_slots,
void *ref, dnode_t **dnp);
boolean_t dnode_add_ref(dnode_t *dn, void *ref);
void dnode_rele(dnode_t *dn, void *ref);
@ -295,9 +378,9 @@ void dnode_rele_and_unlock(dnode_t *dn, void *tag, boolean_t evicting);
void dnode_setdirty(dnode_t *dn, dmu_tx_t *tx);
void dnode_sync(dnode_t *dn, dmu_tx_t *tx);
void dnode_allocate(dnode_t *dn, dmu_object_type_t ot, int blocksize, int ibs,
dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx);
dmu_object_type_t bonustype, int bonuslen, int dn_slots, dmu_tx_t *tx);
void dnode_reallocate(dnode_t *dn, dmu_object_type_t ot, int blocksize,
dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx);
dmu_object_type_t bonustype, int bonuslen, int dn_slots, dmu_tx_t *tx);
void dnode_free(dnode_t *dn, dmu_tx_t *tx);
void dnode_byteswap(dnode_phys_t *dnp);
void dnode_buf_byteswap(void *buf, size_t size);
@ -313,6 +396,7 @@ int dnode_next_offset(dnode_t *dn, int flags, uint64_t *off,
int minlvl, uint64_t blkfill, uint64_t txg);
void dnode_evict_dbufs(dnode_t *dn);
void dnode_evict_bonus(dnode_t *dn);
void dnode_free_interior_slots(dnode_t *dn);
boolean_t dnode_needs_remap(const dnode_t *dn);
#define DNODE_IS_CACHEABLE(_dn) \
@ -324,6 +408,140 @@ boolean_t dnode_needs_remap(const dnode_t *dn);
((_dn)->dn_objset->os_primary_cache == ZFS_CACHE_ALL || \
(_dn)->dn_objset->os_primary_cache == ZFS_CACHE_METADATA)
/*
* Used for dnodestats kstat.
*/
typedef struct dnode_stats {
/*
* Number of failed attempts to hold a meta dnode dbuf.
*/
kstat_named_t dnode_hold_dbuf_hold;
/*
* Number of failed attempts to read a meta dnode dbuf.
*/
kstat_named_t dnode_hold_dbuf_read;
/*
* Number of times dnode_hold(..., DNODE_MUST_BE_ALLOCATED) was able
* to hold the requested object number which was allocated. This is
* the common case when looking up any allocated object number.
*/
kstat_named_t dnode_hold_alloc_hits;
/*
* Number of times dnode_hold(..., DNODE_MUST_BE_ALLOCATED) was not
* able to hold the request object number because it was not allocated.
*/
kstat_named_t dnode_hold_alloc_misses;
/*
* Number of times dnode_hold(..., DNODE_MUST_BE_ALLOCATED) was not
* able to hold the request object number because the object number
* refers to an interior large dnode slot.
*/
kstat_named_t dnode_hold_alloc_interior;
/*
* Number of times dnode_hold(..., DNODE_MUST_BE_ALLOCATED) needed
* to retry acquiring slot zrl locks due to contention.
*/
kstat_named_t dnode_hold_alloc_lock_retry;
/*
* Number of times dnode_hold(..., DNODE_MUST_BE_ALLOCATED) did not
* need to create the dnode because another thread did so after
* dropping the read lock but before acquiring the write lock.
*/
kstat_named_t dnode_hold_alloc_lock_misses;
/*
* Number of times dnode_hold(..., DNODE_MUST_BE_ALLOCATED) found
* a free dnode instantiated by dnode_create() but not yet allocated
* by dnode_allocate().
*/
kstat_named_t dnode_hold_alloc_type_none;
/*
* Number of times dnode_hold(..., DNODE_MUST_BE_FREE) was able
* to hold the requested range of free dnode slots.
*/
kstat_named_t dnode_hold_free_hits;
/*
* Number of times dnode_hold(..., DNODE_MUST_BE_FREE) was not
* able to hold the requested range of free dnode slots because
* at least one slot was allocated.
*/
kstat_named_t dnode_hold_free_misses;
/*
* Number of times dnode_hold(..., DNODE_MUST_BE_FREE) was not
* able to hold the requested range of free dnode slots because
* after acquiring the zrl lock at least one slot was allocated.
*/
kstat_named_t dnode_hold_free_lock_misses;
/*
* Number of times dnode_hold(..., DNODE_MUST_BE_FREE) needed
* to retry acquiring slot zrl locks due to contention.
*/
kstat_named_t dnode_hold_free_lock_retry;
/*
* Number of times dnode_hold(..., DNODE_MUST_BE_FREE) requested
* a range of dnode slots which were held by another thread.
*/
kstat_named_t dnode_hold_free_refcount;
/*
* Number of times dnode_hold(..., DNODE_MUST_BE_FREE) requested
* a range of dnode slots which would overflow the dnode_phys_t.
*/
kstat_named_t dnode_hold_free_overflow;
/*
* Number of times a dnode_hold(...) was attempted on a dnode
* which had already been unlinked in an earlier txg.
*/
kstat_named_t dnode_hold_free_txg;
/*
* Number of times dnode_free_interior_slots() needed to retry
* acquiring a slot zrl lock due to contention.
*/
kstat_named_t dnode_free_interior_lock_retry;
/*
* Number of new dnodes allocated by dnode_allocate().
*/
kstat_named_t dnode_allocate;
/*
* Number of dnodes re-allocated by dnode_reallocate().
*/
kstat_named_t dnode_reallocate;
/*
* Number of meta dnode dbufs evicted.
*/
kstat_named_t dnode_buf_evict;
/*
* Number of times dmu_object_alloc*() reached the end of the existing
* object ID chunk and advanced to a new one.
*/
kstat_named_t dnode_alloc_next_chunk;
/*
* Number of times multiple threads attempted to allocate a dnode
* from the same block of free dnodes.
*/
kstat_named_t dnode_alloc_race;
/*
* Number of times dmu_object_alloc*() was forced to advance to the
* next meta dnode dbuf due to an error from dmu_object_next().
*/
kstat_named_t dnode_alloc_next_block;
/*
* Statistics for tracking dnodes which have been moved.
*/
kstat_named_t dnode_move_invalid;
kstat_named_t dnode_move_recheck1;
kstat_named_t dnode_move_recheck2;
kstat_named_t dnode_move_special;
kstat_named_t dnode_move_handle;
kstat_named_t dnode_move_rwlock;
kstat_named_t dnode_move_active;
} dnode_stats_t;
extern dnode_stats_t dnode_stats;
#define DNODE_STAT_INCR(stat, val) \
atomic_add_64(&dnode_stats.stat.value.ui64, (val));
#define DNODE_STAT_BUMP(stat) \
DNODE_STAT_INCR(stat, 1);
#ifdef ZFS_DEBUG
/*

7
uts/common/fs/zfs/sys/dsl_dataset.h
View File

@ -86,6 +86,13 @@ struct dsl_pool;
*/
#define DS_FIELD_BOOKMARK_NAMES "com.delphix:bookmarks"
/*
* This field is present (with value=0) if this dataset may contain large
* dnodes (>512B). If it is present, then this dataset is counted in the
* refcount of the SPA_FEATURE_LARGE_DNODE feature.
*/
#define DS_FIELD_LARGE_DNODE "org.zfsonlinux:large_dnode"
/*
* These fields are set on datasets that are in the middle of a resumable
* receive, and allow the sender to resume the send if it is interrupted.

6
uts/common/fs/zfs/sys/sa_impl.h
View File

@ -101,7 +101,7 @@ typedef struct sa_lot {
sa_attr_type_t *lot_attrs; /* array of attr #'s */
uint32_t lot_var_sizes; /* how many aren't fixed size */
uint32_t lot_attr_count; /* total attr count */
list_t lot_idx_tab; /* should be only a couple of entries */
list_t lot_idx_tab; /* should be only a couple of entries */
int lot_instance; /* used with lot_hash to identify entry */
} sa_lot_t;
@ -134,7 +134,7 @@ typedef struct sa_idx_tab {
* adding a completely new attribute is a very rare operation.
*/
struct sa_os {
kmutex_t sa_lock;
kmutex_t sa_lock;
boolean_t sa_need_attr_registration;
boolean_t sa_force_spill;
uint64_t sa_master_obj;
@ -237,7 +237,7 @@ struct sa_handle {
#define SA_BONUSTYPE_FROM_DB(db) \
(dmu_get_bonustype((dmu_buf_t *)db))
#define SA_BLKPTR_SPACE (DN_MAX_BONUSLEN - sizeof (blkptr_t))
#define SA_BLKPTR_SPACE (DN_OLD_MAX_BONUSLEN - sizeof (blkptr_t))
#define SA_LAYOUT_NUM(x, type) \
((!IS_SA_BONUSTYPE(type) ? 0 : (((IS_SA_BONUSTYPE(type)) && \

1
uts/common/fs/zfs/sys/spa.h
View File

@ -843,6 +843,7 @@ extern boolean_t spa_is_root(spa_t *spa);
extern boolean_t spa_writeable(spa_t *spa);
extern boolean_t spa_has_pending_synctask(spa_t *spa);
extern int spa_maxblocksize(spa_t *spa);
extern int spa_maxdnodesize(spa_t *spa);
extern boolean_t spa_has_checkpoint(spa_t *spa);
extern boolean_t spa_importing_readonly_checkpoint(spa_t *spa);
extern boolean_t spa_suspend_async_destroy(spa_t *spa);

19
uts/common/fs/zfs/sys/zap.h
View File

@ -115,16 +115,30 @@ typedef enum zap_flags {
/*
* Create a new zapobj with no attributes and return its object number.
*
* dnodesize specifies the on-disk size of the dnode for the new zapobj.
* Valid values are multiples of 512 up to DNODE_MAX_SIZE.
*/
uint64_t zap_create(objset_t *ds, dmu_object_type_t ot,
dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx);
uint64_t zap_create_dnsize(objset_t *ds, dmu_object_type_t ot,
dmu_object_type_t bonustype, int bonuslen, int dnodesize, dmu_tx_t *tx);
uint64_t zap_create_norm(objset_t *ds, int normflags, dmu_object_type_t ot,
dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx);
uint64_t zap_create_norm_dnsize(objset_t *ds, int normflags,
dmu_object_type_t ot, dmu_object_type_t bonustype, int bonuslen,
int dnodesize, dmu_tx_t *tx);
uint64_t zap_create_flags(objset_t *os, int normflags, zap_flags_t flags,
dmu_object_type_t ot, int leaf_blockshift, int indirect_blockshift,
dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx);
uint64_t zap_create_flags_dnsize(objset_t *os, int normflags,
zap_flags_t flags, dmu_object_type_t ot, int leaf_blockshift,
int indirect_blockshift, dmu_object_type_t bonustype, int bonuslen,
int dnodesize, dmu_tx_t *tx);
uint64_t zap_create_link(objset_t *os, dmu_object_type_t ot,
uint64_t parent_obj, const char *name, dmu_tx_t *tx);
uint64_t zap_create_link_dnsize(objset_t *os, dmu_object_type_t ot,
uint64_t parent_obj, const char *name, int dnodesize, dmu_tx_t *tx);
/*
* Initialize an already-allocated object.
@ -138,9 +152,14 @@ void mzap_create_impl(objset_t *os, uint64_t obj, int normflags,
*/
int zap_create_claim(objset_t *ds, uint64_t obj, dmu_object_type_t ot,
dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx);
int zap_create_claim_dnsize(objset_t *ds, uint64_t obj, dmu_object_type_t ot,
dmu_object_type_t bonustype, int bonuslen, int dnodesize, dmu_tx_t *tx);
int zap_create_claim_norm(objset_t *ds, uint64_t obj,
int normflags, dmu_object_type_t ot,
dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx);
int zap_create_claim_norm_dnsize(objset_t *ds, uint64_t obj,
int normflags, dmu_object_type_t ot,
dmu_object_type_t bonustype, int bonuslen, int dnodesize, dmu_tx_t *tx);
/*
* The zapobj passed in must be a valid ZAP object for all of the

9
uts/common/fs/zfs/sys/zfs_ioctl.h
View File

@ -93,7 +93,7 @@ typedef enum drr_headertype {
#define DMU_BACKUP_FEATURE_RESUMING (1 << 20)
/* flag #21 is reserved for a Delphix feature */
#define DMU_BACKUP_FEATURE_COMPRESSED (1 << 22)
/* flag #23 is reserved for the large dnode feature */
#define DMU_BACKUP_FEATURE_LARGE_DNODE (1 << 23)
/* flag #24 is reserved for the raw send feature */
/* flag #25 is reserved for the ZSTD compression feature */
@ -104,7 +104,7 @@ typedef enum drr_headertype {
DMU_BACKUP_FEATURE_DEDUPPROPS | DMU_BACKUP_FEATURE_SA_SPILL | \
DMU_BACKUP_FEATURE_EMBED_DATA | DMU_BACKUP_FEATURE_LZ4 | \
DMU_BACKUP_FEATURE_RESUMING | \
DMU_BACKUP_FEATURE_LARGE_BLOCKS | \
DMU_BACKUP_FEATURE_LARGE_BLOCKS | DMU_BACKUP_FEATURE_LARGE_DNODE | \
DMU_BACKUP_FEATURE_COMPRESSED)
/* Are all features in the given flag word currently supported? */
@ -120,7 +120,7 @@ typedef enum dmu_send_resume_token_version {
*
* 64 56 48 40 32 24 16 8 0
* +-------+-------+-------+-------+-------+-------+-------+-------+
* | reserved | feature-flags |C|S|
* | reserved | feature-flags |C|S|
* +-------+-------+-------+-------+-------+-------+-------+-------+
*
* The low order two bits indicate the header type: SUBSTREAM (0x1)
@ -197,7 +197,8 @@ typedef struct dmu_replay_record {
uint32_t drr_bonuslen;
uint8_t drr_checksumtype;
uint8_t drr_compress;
uint8_t drr_pad[6];
uint8_t drr_dn_slots;
uint8_t drr_pad[5];
uint64_t drr_toguid;
/* bonus content follows */
} drr_object;

1
uts/common/fs/zfs/sys/zfs_znode.h
View File

@ -185,6 +185,7 @@ typedef struct znode {
uint_t z_blksz; /* block size in bytes */
uint_t z_seq; /* modification sequence number */
uint64_t z_mapcnt; /* number of pages mapped to file */
uint64_t z_dnodesize; /* dnode size */
uint64_t z_gen; /* generation (cached) */
uint64_t z_size; /* file size (cached) */
uint64_t z_atime[2]; /* atime (cached) */

17
uts/common/fs/zfs/sys/zil.h
View File

@ -157,7 +157,7 @@ typedef enum zil_create {
#define TX_ACL 13 /* Set ACL */
#define TX_CREATE_ACL 14 /* create with ACL */
#define TX_CREATE_ATTR 15 /* create + attrs */
#define TX_CREATE_ACL_ATTR 16 /* create with ACL + attrs */
#define TX_CREATE_ACL_ATTR 16 /* create with ACL + attrs */
#define TX_MKDIR_ACL 17 /* mkdir with ACL */
#define TX_MKDIR_ATTR 18 /* mkdir with attr */
#define TX_MKDIR_ACL_ATTR 19 /* mkdir with ACL + attrs */
@ -184,6 +184,19 @@ typedef enum zil_create {
(txtype) == TX_ACL || \
(txtype) == TX_WRITE2)
/*
* The number of dnode slots consumed by the object is stored in the 8
* unused upper bits of the object ID. We subtract 1 from the value
* stored on disk for compatibility with implementations that don't
* support large dnodes. The slot count for a single-slot dnode will
* contain 0 for those bits to preserve the log record format for
* "small" dnodes.
*/
#define LR_FOID_GET_SLOTS(oid) (BF64_GET((oid), 56, 8) + 1)
#define LR_FOID_SET_SLOTS(oid, x) BF64_SET((oid), 56, 8, (x) - 1)
#define LR_FOID_GET_OBJ(oid) BF64_GET((oid), 0, DN_MAX_OBJECT_SHIFT)
#define LR_FOID_SET_OBJ(oid, x) BF64_SET((oid), 0, DN_MAX_OBJECT_SHIFT, (x))
/*
* Format of log records.
* The fields are carefully defined to allow them to be aligned
@ -422,7 +435,7 @@ extern void zil_commit_impl(zilog_t *zilog, uint64_t oid);
extern int zil_reset(const char *osname, void *txarg);
extern int zil_claim(struct dsl_pool *dp,
struct dsl_dataset *ds, void *txarg);
extern int zil_check_log_chain(struct dsl_pool *dp,
extern int zil_check_log_chain(struct dsl_pool *dp,
struct dsl_dataset *ds, void *tx);
extern void zil_sync(zilog_t *zilog, dmu_tx_t *tx);
extern void zil_clean(zilog_t *zilog, uint64_t synced_txg);

13
uts/common/fs/zfs/zap.c
View File

@ -948,8 +948,17 @@ uint64_t
zap_create_link(objset_t *os, dmu_object_type_t ot, uint64_t parent_obj,
const char *name, dmu_tx_t *tx)
{
uint64_t new_obj = zap_create(os, ot, DMU_OT_NONE, 0, tx);
VERIFY(new_obj != 0);
return (zap_create_link_dnsize(os, ot, parent_obj, name, 0, tx));
}
uint64_t
zap_create_link_dnsize(objset_t *os, dmu_object_type_t ot, uint64_t parent_obj,
const char *name, int dnodesize, dmu_tx_t *tx)
{
uint64_t new_obj;
VERIFY((new_obj = zap_create_dnsize(os, ot, DMU_OT_NONE, 0,
dnodesize, tx)) > 0);
VERIFY0(zap_add(os, parent_obj, name, sizeof (uint64_t), 1, &new_obj,
tx));

58
uts/common/fs/zfs/zap_micro.c
View File

@ -693,8 +693,16 @@ int
zap_create_claim(objset_t *os, uint64_t obj, dmu_object_type_t ot,
dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx)
{
return (zap_create_claim_norm(os, obj,
0, ot, bonustype, bonuslen, tx));
return (zap_create_claim_dnsize(os, obj, ot, bonustype, bonuslen,
0, tx));
}
int
zap_create_claim_dnsize(objset_t *os, uint64_t obj, dmu_object_type_t ot,
dmu_object_type_t bonustype, int bonuslen, int dnodesize, dmu_tx_t *tx)
{
return (zap_create_claim_norm_dnsize(os, obj,
0, ot, bonustype, bonuslen, dnodesize, tx));
}
int
@ -702,8 +710,19 @@ zap_create_claim_norm(objset_t *os, uint64_t obj, int normflags,
dmu_object_type_t ot,
dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx)
{
ASSERT3U(DMU_OT_BYTESWAP(ot), ==, DMU_BSWAP_ZAP);
int err = dmu_object_claim(os, obj, ot, 0, bonustype, bonuslen, tx);
return (zap_create_claim_norm_dnsize(os, obj, normflags, ot, bonustype,
bonuslen, 0, tx));
}
int
zap_create_claim_norm_dnsize(objset_t *os, uint64_t obj, int normflags,
dmu_object_type_t ot, dmu_object_type_t bonustype, int bonuslen,
int dnodesize, dmu_tx_t *tx)
{
int err;
err = dmu_object_claim_dnsize(os, obj, ot, 0, bonustype, bonuslen,
dnodesize, tx);
if (err != 0)
return (err);
mzap_create_impl(os, obj, normflags, 0, tx);
@ -717,12 +736,29 @@ zap_create(objset_t *os, dmu_object_type_t ot,
return (zap_create_norm(os, 0, ot, bonustype, bonuslen, tx));
}
uint64_t
zap_create_dnsize(objset_t *os, dmu_object_type_t ot,
dmu_object_type_t bonustype, int bonuslen, int dnodesize, dmu_tx_t *tx)
{
return (zap_create_norm_dnsize(os, 0, ot, bonustype, bonuslen,
dnodesize, tx));
}
uint64_t
zap_create_norm(objset_t *os, int normflags, dmu_object_type_t ot,
dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx)
{
ASSERT3U(DMU_OT_BYTESWAP(ot), ==, DMU_BSWAP_ZAP);
uint64_t obj = dmu_object_alloc(os, ot, 0, bonustype, bonuslen, tx);
return (zap_create_norm_dnsize(os, normflags, ot, bonustype, bonuslen,
0, tx));
}
uint64_t
zap_create_norm_dnsize(objset_t *os, int normflags, dmu_object_type_t ot,
dmu_object_type_t bonustype, int bonuslen, int dnodesize, dmu_tx_t *tx)
{
uint64_t obj = dmu_object_alloc_dnsize(os, ot, 0, bonustype, bonuslen,
dnodesize, tx);
mzap_create_impl(os, obj, normflags, 0, tx);
return (obj);
@ -734,7 +770,17 @@ zap_create_flags(objset_t *os, int normflags, zap_flags_t flags,
dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx)
{
ASSERT3U(DMU_OT_BYTESWAP(ot), ==, DMU_BSWAP_ZAP);
uint64_t obj = dmu_object_alloc(os, ot, 0, bonustype, bonuslen, tx);
return (zap_create_flags_dnsize(os, normflags, flags, ot,
leaf_blockshift, indirect_blockshift, bonustype, bonuslen, 0, tx));
}
uint64_t
zap_create_flags_dnsize(objset_t *os, int normflags, zap_flags_t flags,
dmu_object_type_t ot, int leaf_blockshift, int indirect_blockshift,
dmu_object_type_t bonustype, int bonuslen, int dnodesize, dmu_tx_t *tx)
{
uint64_t obj = dmu_object_alloc_dnsize(os, ot, 0, bonustype, bonuslen,
dnodesize, tx);
ASSERT(leaf_blockshift >= SPA_MINBLOCKSHIFT &&
leaf_blockshift <= SPA_OLD_MAXBLOCKSHIFT &&

18
uts/common/fs/zfs/zfs_acl.c
View File

@ -895,7 +895,7 @@ zfs_mode_compute(uint64_t fmode, zfs_acl_t *aclp,
int entry_type;
mode_t mode;
mode_t seen = 0;
zfs_ace_hdr_t *acep = NULL;
zfs_ace_hdr_t *acep = NULL;
uint64_t who;
uint16_t iflags, type;
uint32_t access_mask;
@ -1262,7 +1262,7 @@ zfs_aclset_common(znode_t *zp, zfs_acl_t *aclp, cred_t *cr, dmu_tx_t *tx)
otype == DMU_OT_ACL ?
DMU_OT_SYSACL : DMU_OT_NONE,
otype == DMU_OT_ACL ?
DN_MAX_BONUSLEN : 0, tx);
DN_OLD_MAX_BONUSLEN : 0, tx);
} else {
(void) dmu_object_set_blocksize(zfsvfs->z_os,
aoid, aclp->z_acl_bytes, 0, tx);
@ -1337,12 +1337,12 @@ zfs_acl_chmod(vtype_t vtype, uint64_t mode, boolean_t split, boolean_t trim,
uint64_t who;
int new_count, new_bytes;
int ace_size;
int entry_type;
int entry_type;
uint16_t iflags, type;
uint32_t access_mask;
zfs_acl_node_t *newnode;
size_t abstract_size = aclp->z_ops.ace_abstract_size();
void *zacep;
size_t abstract_size = aclp->z_ops.ace_abstract_size();
void *zacep;
boolean_t isdir;
trivial_acl_t masks;
@ -1786,7 +1786,7 @@ zfs_getacl(znode_t *zp, vsecattr_t *vsecp, boolean_t skipaclchk, cred_t *cr)
zfs_acl_t *aclp;
ulong_t mask;
int error;
int count = 0;
int count = 0;
int largeace = 0;
mask = vsecp->vsa_mask & (VSA_ACE | VSA_ACECNT |
@ -2107,7 +2107,7 @@ zfs_zaccess_aces_check(znode_t *zp, uint32_t *working_mode,
zfs_acl_t *aclp;
int error;
uid_t uid = crgetuid(cr);
uint64_t who;
uint64_t who;
uint16_t type, iflags;
uint16_t entry_type;
uint32_t access_mask;
@ -2380,9 +2380,9 @@ zfs_zaccess(znode_t *zp, int mode, int flags, boolean_t skipaclchk, cred_t *cr)
uint32_t working_mode;
int error;
int is_attr;
boolean_t check_privs;
boolean_t check_privs;
znode_t *xzp;
znode_t *check_zp = zp;
znode_t *check_zp = zp;
mode_t needed_bits;
uid_t owner;

18
uts/common/fs/zfs/zfs_ioctl.c
View File

@ -4055,6 +4055,24 @@ zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr)
}
break;
case ZFS_PROP_DNODESIZE:
/* Dnode sizes above 512 need the feature to be enabled */
if (nvpair_value_uint64(pair, &intval) == 0 &&
intval != ZFS_DNSIZE_LEGACY) {
spa_t *spa;
if ((err = spa_open(dsname, &spa, FTAG)) != 0)
return (err);
if (!spa_feature_is_enabled(spa,
SPA_FEATURE_LARGE_DNODE)) {
spa_close(spa, FTAG);
return (SET_ERROR(ENOTSUP));
}
spa_close(spa, FTAG);
}
break;
case ZFS_PROP_SHARESMB:
if (zpl_earlier_version(dsname, ZPL_VERSION_FUID))
return (SET_ERROR(ENOTSUP));

2
uts/common/fs/zfs/zfs_log.c
View File

@ -280,6 +280,8 @@ zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
lr = (lr_create_t *)&itx->itx_lr;
lr->lr_doid = dzp->z_id;
lr->lr_foid = zp->z_id;
/* Store dnode slot count in 8 bits above object id. */
LR_FOID_SET_SLOTS(lr->lr_foid, zp->z_dnodesize >> DNODE_SHIFT);
lr->lr_mode = zp->z_mode;
if (!IS_EPHEMERAL(zp->z_uid)) {
lr->lr_uid = (uint64_t)zp->z_uid;

30
uts/common/fs/zfs/zfs_replay.c
View File

@ -278,6 +278,8 @@ zfs_replay_create_acl(void *arg1, void *arg2, boolean_t byteswap)
void *fuidstart;
size_t xvatlen = 0;
uint64_t txtype;
uint64_t objid;
uint64_t dnodesize;
int error;
txtype = (lr->lr_common.lrc_txtype & ~TX_CI);
@ -303,19 +305,24 @@ zfs_replay_create_acl(void *arg1, void *arg2, boolean_t byteswap)
if ((error = zfs_zget(zfsvfs, lr->lr_doid, &dzp)) != 0)
return (error);
objid = LR_FOID_GET_OBJ(lr->lr_foid);
dnodesize = LR_FOID_GET_SLOTS(lr->lr_foid) << DNODE_SHIFT;
xva_init(&xva);
zfs_init_vattr(&xva.xva_vattr, AT_TYPE | AT_MODE | AT_UID | AT_GID,
lr->lr_mode, lr->lr_uid, lr->lr_gid, lr->lr_rdev, lr->lr_foid);
lr->lr_mode, lr->lr_uid, lr->lr_gid, lr->lr_rdev, objid);
/*
* All forms of zfs create (create, mkdir, mkxattrdir, symlink)
* eventually end up in zfs_mknode(), which assigns the object's
* creation time and generation number. The generic VOP_CREATE()
* doesn't have either concept, so we smuggle the values inside
* the vattr's otherwise unused va_ctime and va_nblocks fields.
* creation time, generation number, and dnode size. The generic
* zfs_create() has no concept of these attributes, so we smuggle
* the values inside the vattr's otherwise unused va_ctime,
* va_nblocks, and va_fsid fields.
*/
ZFS_TIME_DECODE(&xva.xva_vattr.va_ctime, lr->lr_crtime);
xva.xva_vattr.va_nblocks = lr->lr_gen;
xva.xva_vattr.va_fsid = dnodesize;
error = dmu_object_info(zfsvfs->z_os, lr->lr_foid, NULL);
if (error != ENOENT)
@ -432,21 +439,26 @@ zfs_replay_create(void *arg1, void *arg2, boolean_t byteswap)
if ((error = zfs_zget(zfsvfs, lr->lr_doid, &dzp)) != 0)
return (error);
uint64_t objid = LR_FOID_GET_OBJ(lr->lr_foid);
int dnodesize = LR_FOID_GET_SLOTS(lr->lr_foid) << DNODE_SHIFT;
xva_init(&xva);
zfs_init_vattr(&xva.xva_vattr, AT_TYPE | AT_MODE | AT_UID | AT_GID,
lr->lr_mode, lr->lr_uid, lr->lr_gid, lr->lr_rdev, lr->lr_foid);
lr->lr_mode, lr->lr_uid, lr->lr_gid, lr->lr_rdev, objid);
/*
* All forms of zfs create (create, mkdir, mkxattrdir, symlink)
* eventually end up in zfs_mknode(), which assigns the object's
* creation time and generation number. The generic VOP_CREATE()
* doesn't have either concept, so we smuggle the values inside
* the vattr's otherwise unused va_ctime and va_nblocks fields.
* creation time, generation number, and dnode slot count. The
* generic zfs_create() has no concept of these attributes, so
* we smuggle the values inside the vattr's otherwise unused
* va_ctime, va_nblocks and va_fsid fields.
*/
ZFS_TIME_DECODE(&xva.xva_vattr.va_ctime, lr->lr_crtime);
xva.xva_vattr.va_nblocks = lr->lr_gen;
xva.xva_vattr.va_fsid = dnodesize;
error = dmu_object_info(zfsvfs->z_os, lr->lr_foid, NULL);
error = dmu_object_info(zfsvfs->z_os, objid, NULL);
if (error != ENOENT)
goto out;

3
uts/common/fs/zfs/zfs_sa.c
View File

@ -97,8 +97,7 @@ zfs_sa_symlink(znode_t *zp, char *link, int len, dmu_tx_t *tx)
dmu_buf_t *db = sa_get_db(zp->z_sa_hdl);
if (ZFS_OLD_ZNODE_PHYS_SIZE + len <= dmu_bonus_max()) {
VERIFY(dmu_set_bonus(db,
len + ZFS_OLD_ZNODE_PHYS_SIZE, tx) == 0);
VERIFY0(dmu_set_bonus(db, len + ZFS_OLD_ZNODE_PHYS_SIZE, tx));
if (len) {
bcopy(link, (caddr_t)db->db_data +
ZFS_OLD_ZNODE_PHYS_SIZE, len);

40
uts/common/fs/zfs/zfs_znode.c
View File

@ -60,6 +60,7 @@
#include <sys/dmu.h>
#include <sys/dmu_objset.h>
#include <sys/dmu_tx.h>
#include <sys/refcount.h>
#include <sys/stat.h>
#include <sys/zap.h>
@ -799,9 +800,10 @@ zfs_mknode(znode_t *dzp, vattr_t *vap, dmu_tx_t *tx, cred_t *cr,
timestruc_t now;
uint64_t gen, obj;
int bonuslen;
int dnodesize;
sa_handle_t *sa_hdl;
dmu_object_type_t obj_type;
sa_bulk_attr_t sa_attrs[ZPL_END];
sa_bulk_attr_t *sa_attrs;
int cnt = 0;
zfs_acl_locator_cb_t locate = { 0 };
@ -811,15 +813,20 @@ zfs_mknode(znode_t *dzp, vattr_t *vap, dmu_tx_t *tx, cred_t *cr,
obj = vap->va_nodeid;
now = vap->va_ctime; /* see zfs_replay_create() */
gen = vap->va_nblocks; /* ditto */
dnodesize = vap->va_fsid; /* ditto */
} else {
obj = 0;
gethrestime(&now);
gen = dmu_tx_get_txg(tx);
dnodesize = dmu_objset_dnodesize(zfsvfs->z_os);
}
if (dnodesize == 0)
dnodesize = DNODE_MIN_SIZE;
obj_type = zfsvfs->z_use_sa ? DMU_OT_SA : DMU_OT_ZNODE;
bonuslen = (obj_type == DMU_OT_SA) ?
DN_MAX_BONUSLEN : ZFS_OLD_ZNODE_PHYS_SIZE;
DN_BONUS_SIZE(dnodesize) : ZFS_OLD_ZNODE_PHYS_SIZE;
/*
* Create a new DMU object.
@ -832,28 +839,28 @@ zfs_mknode(znode_t *dzp, vattr_t *vap, dmu_tx_t *tx, cred_t *cr,
*/
if (vap->va_type == VDIR) {
if (zfsvfs->z_replay) {
VERIFY0(zap_create_claim_norm(zfsvfs->z_os, obj,
VERIFY0(zap_create_claim_norm_dnsize(zfsvfs->z_os, obj,
zfsvfs->z_norm, DMU_OT_DIRECTORY_CONTENTS,
obj_type, bonuslen, tx));
obj_type, bonuslen, dnodesize, tx));
} else {
obj = zap_create_norm(zfsvfs->z_os,
obj = zap_create_norm_dnsize(zfsvfs->z_os,
zfsvfs->z_norm, DMU_OT_DIRECTORY_CONTENTS,
obj_type, bonuslen, tx);
obj_type, bonuslen, dnodesize, tx);
}
} else {
if (zfsvfs->z_replay) {
VERIFY0(dmu_object_claim(zfsvfs->z_os, obj,
VERIFY0(dmu_object_claim_dnsize(zfsvfs->z_os, obj,
DMU_OT_PLAIN_FILE_CONTENTS, 0,
obj_type, bonuslen, tx));
obj_type, bonuslen, dnodesize, tx));
} else {
obj = dmu_object_alloc(zfsvfs->z_os,
obj = dmu_object_alloc_dnsize(zfsvfs->z_os,
DMU_OT_PLAIN_FILE_CONTENTS, 0,
obj_type, bonuslen, tx);
obj_type, bonuslen, dnodesize, tx);
}
}
ZFS_OBJ_HOLD_ENTER(zfsvfs, obj);
VERIFY(0 == sa_buf_hold(zfsvfs->z_os, obj, NULL, &db));
VERIFY0(sa_buf_hold(zfsvfs->z_os, obj, NULL, &db));
/*
* If this is the root, fix up the half-initialized parent pointer
@ -925,6 +932,7 @@ zfs_mknode(znode_t *dzp, vattr_t *vap, dmu_tx_t *tx, cred_t *cr,
* order for DMU_OT_ZNODE is critical since it needs to be constructed
* in the old znode_phys_t format. Don't change this ordering
*/
sa_attrs = kmem_alloc(sizeof (sa_bulk_attr_t) * ZPL_END, KM_SLEEP);
if (obj_type == DMU_OT_ZNODE) {
SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_ATIME(zfsvfs),
@ -950,10 +958,10 @@ zfs_mknode(znode_t *dzp, vattr_t *vap, dmu_tx_t *tx, cred_t *cr,
NULL, &size, 8);
SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_GEN(zfsvfs),
NULL, &gen, 8);
SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_UID(zfsvfs), NULL,
&acl_ids->z_fuid, 8);
SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_GID(zfsvfs), NULL,
&acl_ids->z_fgid, 8);
SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_UID(zfsvfs),
NULL, &acl_ids->z_fuid, 8);
SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_GID(zfsvfs),
NULL, &acl_ids->z_fgid, 8);
SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_PARENT(zfsvfs),
NULL, &parent, 8);
SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_FLAGS(zfsvfs),
@ -1019,6 +1027,7 @@ zfs_mknode(znode_t *dzp, vattr_t *vap, dmu_tx_t *tx, cred_t *cr,
(*zpp)->z_pflags = pflags;
(*zpp)->z_mode = mode;
(*zpp)->z_dnodesize = dnodesize;
if (vap->va_mask & AT_XVATTR)
zfs_xvattr_set(*zpp, (xvattr_t *)vap, tx);
@ -1027,6 +1036,7 @@ zfs_mknode(znode_t *dzp, vattr_t *vap, dmu_tx_t *tx, cred_t *cr,
acl_ids->z_aclp->z_version < ZFS_ACL_VERSION_FUID) {
VERIFY0(zfs_aclset_common(*zpp, acl_ids->z_aclp, cr, tx));
}
kmem_free(sa_attrs, sizeof (sa_bulk_attr_t) * ZPL_END);
ZFS_OBJ_HOLD_EXIT(zfsvfs, obj);
}

16
uts/common/fs/zfs/zil.c
View File

@ -63,9 +63,9 @@
* representation, and the on-disk representation). The on-disk format
* consists of 3 parts:
*
* - a single, per-dataset, ZIL header; which points to a chain of
* - zero or more ZIL blocks; each of which contains
* - zero or more ZIL records
* - a single, per-dataset, ZIL header; which points to a chain of
* - zero or more ZIL blocks; each of which contains
* - zero or more ZIL records
*
* A ZIL record holds the information necessary to replay a single
* system call transaction. A ZIL block can hold many ZIL records, and
@ -1355,7 +1355,7 @@ zil_lwb_write_open(zilog_t *zilog, lwb_t *lwb)
uint64_t zil_block_buckets[] = {
4096, /* non TX_WRITE */
8192+4096, /* data base */
32*1024 + 4096, /* NFS writes */
32*1024 + 4096, /* NFS writes */
UINT64_MAX
};
@ -1840,7 +1840,8 @@ zil_itx_assign(zilog_t *zilog, itx_t *itx, dmu_tx_t *tx)
list_insert_tail(&itxs->i_sync_list, itx);
} else {
avl_tree_t *t = &itxs->i_async_tree;
uint64_t foid = ((lr_ooo_t *)&itx->itx_lr)->lr_foid;
uint64_t foid =
LR_FOID_GET_OBJ(((lr_ooo_t *)&itx->itx_lr)->lr_foid);
itx_async_node_t *ian;
avl_index_t where;
@ -3088,7 +3089,8 @@ zil_close(zilog_t *zilog)
if (zilog_is_dirty(zilog))
zfs_dbgmsg("zil (%p) is dirty, txg %llu", zilog, txg);
VERIFY(!zilog_is_dirty(zilog));
if (txg < spa_freeze_txg(zilog->zl_spa))
VERIFY(!zilog_is_dirty(zilog));
zilog->zl_get_data = NULL;
@ -3303,7 +3305,7 @@ zil_replay_log_record(zilog_t *zilog, lr_t *lr, void *zra, uint64_t claim_txg)
*/
if (TX_OOO(txtype)) {
error = dmu_object_info(zilog->zl_os,
((lr_ooo_t *)lr)->lr_foid, NULL);
LR_FOID_GET_OBJ(((lr_ooo_t *)lr)->lr_foid), NULL);
if (error == ENOENT || error == EEXIST)
return (0);
}

12
uts/common/sys/fs/zfs.h
View File

@ -148,6 +148,7 @@ typedef enum {
ZFS_PROP_DEDUP,
ZFS_PROP_MLSLABEL,
ZFS_PROP_SYNC,
ZFS_PROP_DNODESIZE,
ZFS_PROP_REFRATIO,
ZFS_PROP_WRITTEN,
ZFS_PROP_CLONES,
@ -211,6 +212,7 @@ typedef enum {
ZPOOL_PROP_BOOTSIZE,
ZPOOL_PROP_CHECKPOINT,
ZPOOL_PROP_TNAME,
ZPOOL_PROP_MAXDNODESIZE,
ZPOOL_NUM_PROPS
} zpool_prop_t;
@ -365,6 +367,16 @@ typedef enum {
ZFS_SYNC_DISABLED = 2
} zfs_sync_type_t;
typedef enum {
ZFS_DNSIZE_LEGACY = 0,
ZFS_DNSIZE_AUTO = 1,
ZFS_DNSIZE_1K = 1024,
ZFS_DNSIZE_2K = 2048,
ZFS_DNSIZE_4K = 4096,
ZFS_DNSIZE_8K = 8192,
ZFS_DNSIZE_16K = 16384
} zfs_dnsize_type_t;
typedef enum {
ZFS_REDUNDANT_METADATA_ALL,
ZFS_REDUNDANT_METADATA_MOST