ZFS large block support.
Please note that booting from datasets that have recordsize greater
than 128KB is not supported (but it's Okay to enable the feature on
the pool). This *may* remain unchanged because of memory constraint.
Limited safety belt is provided for mounted root filesystem but use
caution is advised.
Illumos issue:
5027 zfs large block support
MFC after: 1 month
(void) close(fd);
}
+static uint64_t num_large_blocks;
+
/*ARGSUSED*/
static int
dump_one_dir(const char *dsname, void *arg)
(void) printf("Could not open %s, error %d\n", dsname, error);
return (0);
}
+ if (dmu_objset_ds(os)->ds_large_blocks)
+ num_large_blocks++;
dump_dir(os);
dmu_objset_disown(os, FTAG);
fuid_table_destroy();
/*
* Block statistics.
*/
-#define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1)
+#define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2)
typedef struct zdb_blkstats {
uint64_t zb_asize;
uint64_t zb_lsize;
zb->zb_lsize += BP_GET_LSIZE(bp);
zb->zb_psize += BP_GET_PSIZE(bp);
zb->zb_count++;
- zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++;
+
+ /*
+ * The histogram is only big enough to record blocks up to
+ * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last,
+ * "other", bucket.
+ */
+ int idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT;
+ idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1);
+ zb->zb_psize_histogram[idx]++;
zb->zb_gangs += BP_COUNT_GANG(bp);
dump_metaslab_groups(spa);
if (dump_opt['d'] || dump_opt['i']) {
+ uint64_t refcount;
dump_dir(dp->dp_meta_objset);
if (dump_opt['d'] >= 3) {
dump_bpobj(&spa->spa_deferred_bpobj,
}
(void) dmu_objset_find(spa_name(spa), dump_one_dir,
NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
+
+ (void) feature_get_refcount(spa,
+ &spa_feature_table[SPA_FEATURE_LARGE_BLOCKS], &refcount);
+ if (num_large_blocks != refcount) {
+ (void) printf("large_blocks feature refcount mismatch: "
+ "expected %lld != actual %lld\n",
+ (longlong_t)num_large_blocks,
+ (longlong_t)refcount);
+ rc = 2;
+ } else {
+ (void) printf("Verified large_blocks feature refcount "
+ "is correct (%llu)\n", (longlong_t)refcount);
+ }
}
- if (dump_opt['b'] || dump_opt['c'])
+ if (rc == 0 && (dump_opt['b'] || dump_opt['c']))
rc = dump_block_stats(spa);
if (rc == 0)
.\"
.\" $FreeBSD$
.\"
-.Dd June 30, 2014
+.Dd November 10, 2014
.Dt ZFS 8
.Os
.Sh NAME
.Ar bookmark
.Nm
.Cm send
-.Op Fl DnPpRve
+.Op Fl DnPpRveL
.Op Fl i Ar snapshot | Fl I Ar snapshot
.Ar snapshot
.Nm
.Cm send
-.Op Fl e
+.Op Fl eL
.Op Fl i Ar snapshot Ns | Ns bookmark
.Ar filesystem Ns | Ns Ar volume Ns | Ns Ar snapshot
.Nm
.Pp
The size specified must be a power of two greater than or equal to 512 and less
than or equal to 128 Kbytes.
+If the
+.Sy large_blocks
+feature is enabled on the pool, the size may be up to 1 Mbyte.
+See
+.Xr zpool-features 7
+for details on ZFS feature flags.
.Pp
Changing the file system's
.Sy recordsize
.It Xo
.Nm
.Cm send
-.Op Fl DnPpRve
+.Op Fl DnPpRveL
.Op Fl i Ar snapshot | Fl I Ar snapshot
.Ar snapshot
.Xc
property, but performance will be much better if the filesystem uses a
dedup-capable checksum (eg.
.Sy sha256 ) .
+.It Fl L
+Generate a stream which may contain blocks larger than 128KB.
+This flag
+has no effect if the
+.Sy large_blocks
+pool feature is disabled, or if the
+.Sy recordsize
+property of this filesystem has never been set above 128KB.
+The receiving system must have the
+.Sy large_blocks
+pool feature enabled as well.
+See
+.Xr zpool-features 7
+for details on ZFS feature flags and the
+.Sy large_blocks
+feature.
.It Fl e
Generate a more compact stream by using WRITE_EMBEDDED records for blocks
which are stored more compactly on disk by the
.It Xo
.Nm
.Cm send
-.Op Fl e
+.Op Fl eL
.Op Fl i Ar snapshot Ns | Ns Ar bookmark
.Ar filesystem Ns | Ns Ar volume Ns | Ns Ar snapshot
.Xc
If the incremental target is a clone, the incremental source can
be the origin snapshot, or an earlier snapshot in the origin's filesystem,
or the origin's origin, etc.
+.It Fl L
+Generate a stream which may contain blocks larger than 128KB.
+This flag
+has no effect if the
+.Sy large_blocks
+pool feature is disabled, or if the
+.Sy recordsize
+property of this filesystem has never been set above 128KB.
+The receiving system must have the
+.Sy large_blocks
+pool feature enabled as well.
+See
+.Xr zpool-features 7
+for details on ZFS feature flags and the
+.Sy large_blocks
+feature.
.It Fl e
Generate a more compact stream by using WRITE_EMBEDDED records for blocks
which are stored more compactly on disk by the
case HELP_ROLLBACK:
return (gettext("\trollback [-rRf] <snapshot>\n"));
case HELP_SEND:
- return (gettext("\tsend [-DnPpRve] [-[iI] snapshot] "
+ return (gettext("\tsend [-DnPpRvLe] [-[iI] snapshot] "
"<snapshot>\n"
- "\tsend [-e] [-i snapshot|bookmark] "
+ "\tsend [-Le] [-i snapshot|bookmark] "
"<filesystem|volume|snapshot>\n"));
case HELP_SET:
return (gettext("\tset <property=value> "
boolean_t extraverbose = B_FALSE;
/* check options */
- while ((c = getopt(argc, argv, ":i:I:RDpvnPe")) != -1) {
+ while ((c = getopt(argc, argv, ":i:I:RDpvnPLe")) != -1) {
switch (c) {
case 'i':
if (fromname)
case 'n':
flags.dryrun = B_TRUE;
break;
+ case 'L':
+ flags.largeblock = B_TRUE;
+ break;
case 'e':
flags.embed_data = B_TRUE;
break;
if (zhp == NULL)
return (1);
+ if (flags.largeblock)
+ lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK;
if (flags.embed_data)
lzc_flags |= LZC_SEND_FLAG_EMBED_DATA;
.\"
.\" $FreeBSD$
.\"
-.Dd July 1, 2014
+.Dd November 10, 2014
.Dt ZPOOL-FEATURES 7
.Os
.Sh NAME
as soon as it is enabled and will
never return to being
.Sy enabled .
+.It Sy large_blocks
+.Bl -column "READ\-ONLY COMPATIBLE" "org.open-zfs:large_block"
+.It GUID Ta org.open-zfs:large_block
+.It READ\-ONLY COMPATIBLE Ta no
+.It DEPENDENCIES Ta extensible_dataset
+.El
+.Pp
+The
+.Sy large_block
+feature allows the record size on a dataset to be
+set larger than 128KB.
+.Pp
+This feature becomes
+.Sy active
+once a
+.Sy recordsize
+property has been set larger than 128KB, and will return to being
+.Sy enabled
+once all filesystems that have ever had their recordsize larger than 128KB
+are destroyed.
+.Pp
+Please note that booting from datasets that have recordsize greater than
+128KB is
+.Em NOT
+supported by the
+.Fx
+boot loader.
.El
.Sh SEE ALSO
.Xr zpool 8
FILE *send_stream = 0;
boolean_t do_byteswap = B_FALSE;
boolean_t do_cksum = B_TRUE;
-#define INITIAL_BUFLEN (1<<20)
static void
usage(void)
exit(1);
}
+static void *
+safe_malloc(size_t size)
+{
+ void *rv = malloc(size);
+ if (rv == NULL) {
+ (void) fprintf(stderr, "ERROR; failed to allocate %zu bytes\n",
+ size);
+ abort();
+ }
+ return (rv);
+}
+
/*
* ssread - send stream read.
*
int
main(int argc, char *argv[])
{
- char *buf = malloc(INITIAL_BUFLEN);
+ char *buf = safe_malloc(SPA_MAXBLOCKSIZE);
uint64_t drr_record_count[DRR_NUMTYPES] = { 0 };
uint64_t total_records = 0;
dmu_replay_record_t thedrr;
nvlist_t *nv;
int sz = drr->drr_payloadlen;
- if (sz > INITIAL_BUFLEN) {
+ if (sz > SPA_MAXBLOCKSIZE) {
free(buf);
- buf = malloc(sz);
+ buf = safe_malloc(sz);
}
(void) ssread(buf, sz, &zc);
if (ferror(send_stream))
static int
ztest_random_blocksize(void)
{
- // Choose a block size >= the ashift.
- uint64_t block_shift =
- ztest_random(SPA_MAXBLOCKSHIFT - ztest_spa_get_ashift() + 1);
+ uint64_t block_shift;
+ /*
+ * Choose a block size >= the ashift.
+ * If the SPA supports new MAXBLOCKSIZE, test up to 1MB blocks.
+ */
+ int maxbs = SPA_OLD_MAXBLOCKSHIFT;
+ if (spa_maxblocksize(ztest_spa) == SPA_MAXBLOCKSIZE)
+ maxbs = 20;
+ block_shift = ztest_random(maxbs - ztest_spa_get_ashift() + 1);
return (1 << (SPA_MINBLOCKSHIFT + block_shift));
}
char path0[MAXPATHLEN];
char pathrand[MAXPATHLEN];
size_t fsize;
- int bshift = SPA_MAXBLOCKSHIFT + 2; /* don't scrog all labels */
+ int bshift = SPA_OLD_MAXBLOCKSHIFT + 2; /* don't scrog all labels */
int iters = 1000;
int maxfaults;
int mirror_save;
/* show progress (ie. -v) */
boolean_t progress;
+ /* large blocks (>128K) are permitted */
+ boolean_t largeblock;
+
/* WRITE_EMBEDDED records of type DATA are permitted */
boolean_t embed_data;
} sendflags_t;
break;
}
- case ZFS_PROP_RECORDSIZE:
case ZFS_PROP_VOLBLOCKSIZE:
- /* must be power of two within SPA_{MIN,MAX}BLOCKSIZE */
+ case ZFS_PROP_RECORDSIZE:
+ {
+ int maxbs = SPA_MAXBLOCKSIZE;
+ if (zhp != NULL) {
+ maxbs = zpool_get_prop_int(zhp->zpool_hdl,
+ ZPOOL_PROP_MAXBLOCKSIZE, NULL);
+ }
+ /*
+ * Volumes are limited to a volblocksize of 128KB,
+ * because they typically service workloads with
+ * small random writes, which incur a large performance
+ * penalty with large blocks.
+ */
+ if (prop == ZFS_PROP_VOLBLOCKSIZE)
+ maxbs = SPA_OLD_MAXBLOCKSIZE;
+ /*
+ * The value must be a power of two between
+ * SPA_MINBLOCKSIZE and maxbs.
+ */
if (intval < SPA_MINBLOCKSIZE ||
- intval > SPA_MAXBLOCKSIZE || !ISP2(intval)) {
+ intval > maxbs || !ISP2(intval)) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "'%s' must be power of 2 from %u "
- "to %uk"), propname,
- (uint_t)SPA_MINBLOCKSIZE,
- (uint_t)SPA_MAXBLOCKSIZE >> 10);
+ "'%s' must be power of 2 from 512B "
+ "to %uKB"), propname, maxbs >> 10);
(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
goto error;
}
break;
-
+ }
case ZFS_PROP_MLSLABEL:
{
#ifdef sun
break;
case ERANGE:
- if (prop == ZFS_PROP_COMPRESSION) {
+ case EDOM:
+ if (prop == ZFS_PROP_COMPRESSION ||
+ prop == ZFS_PROP_RECORDSIZE) {
(void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"property setting is not allowed on "
"bootable datasets"));
case EDOM:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"volume block size must be power of 2 from "
- "%u to %uk"),
- (uint_t)SPA_MINBLOCKSIZE,
- (uint_t)SPA_MAXBLOCKSIZE >> 10);
+ "512B to 128KB"));
return (zfs_error(hdl, EZFS_BADPROP, errbuf));
cksummer(void *arg)
{
dedup_arg_t *dda = arg;
- char *buf = malloc(1<<20);
+ char *buf = zfs_alloc(dda->dedup_hdl, SPA_MAXBLOCKSIZE);
dmu_replay_record_t thedrr;
dmu_replay_record_t *drr = &thedrr;
struct drr_begin *drrb = &thedrr.drr_u.drr_begin;
DMU_COMPOUNDSTREAM && drr->drr_payloadlen != 0) {
int sz = drr->drr_payloadlen;
- if (sz > 1<<20) {
- free(buf);
- buf = malloc(sz);
+ if (sz > SPA_MAXBLOCKSIZE) {
+ buf = zfs_realloc(dda->dedup_hdl, buf,
+ SPA_MAXBLOCKSIZE, sz);
}
(void) ssread(buf, sz, ofp);
if (ferror(stdin))
char prevsnap[ZFS_MAXNAMELEN];
uint64_t prevsnap_obj;
boolean_t seenfrom, seento, replicate, doall, fromorigin;
- boolean_t verbose, dryrun, parsable, progress, embed_data;
+ boolean_t verbose, dryrun, parsable, progress, embed_data, large_block;
int outfd;
boolean_t err;
nvlist_t *fss;
}
enum lzc_send_flags flags = 0;
+ if (sdd->large_block)
+ flags |= LZC_SEND_FLAG_LARGE_BLOCK;
if (sdd->embed_data)
flags |= LZC_SEND_FLAG_EMBED_DATA;
sdd.parsable = flags->parsable;
sdd.progress = flags->progress;
sdd.dryrun = flags->dryrun;
+ sdd.large_block = flags->largeblock;
sdd.embed_data = flags->embed_data;
sdd.filter_cb = filter_func;
sdd.filter_cb_arg = cb_arg;
recv_skip(libzfs_handle_t *hdl, int fd, boolean_t byteswap)
{
dmu_replay_record_t *drr;
- void *buf = malloc(1<<20);
+ void *buf = zfs_alloc(hdl, SPA_MAXBLOCKSIZE);
char errbuf[1024];
(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
*
* "fd" is the file descriptor to write the send stream to.
*
+ * If "flags" contains LZC_SEND_FLAG_LARGE_BLOCK, the stream is permitted
+ * to contain DRR_WRITE records with drr_length > 128K, and DRR_OBJECT
+ * records with drr_blksz > 128K.
+ *
* If "flags" contains LZC_SEND_FLAG_EMBED_DATA, the stream is permitted
* to contain DRR_WRITE_EMBEDDED records with drr_etype==BP_EMBEDDED_TYPE_DATA,
* which the receiving system must support (as indicated by support
fnvlist_add_int32(args, "fd", fd);
if (from != NULL)
fnvlist_add_string(args, "fromsnap", from);
+ if (flags & LZC_SEND_FLAG_LARGE_BLOCK)
+ fnvlist_add_boolean(args, "largeblockok");
if (flags & LZC_SEND_FLAG_EMBED_DATA)
fnvlist_add_boolean(args, "embedok");
err = lzc_ioctl(ZFS_IOC_SEND_NEW, snapname, args, NULL);
int lzc_get_holds(const char *, nvlist_t **);
enum lzc_send_flags {
- LZC_SEND_FLAG_EMBED_DATA = 1 << 0
+ LZC_SEND_FLAG_EMBED_DATA = 1 << 0,
+ LZC_SEND_FLAG_LARGE_BLOCK = 1 << 1
};
int lzc_send(const char *, const char *, int, enum lzc_send_flags);
"com.delphix:hole_birth",
"com.delphix:extensible_dataset",
"com.delphix:embedded_data",
+ "org.open-zfs:large_blocks",
NULL
};
int nlevels = dnode->dn_nlevels;
int i, rc;
+ if (bsize > SPA_MAXBLOCKSIZE) {
+ printf("ZFS: I/O error - blocks larger than 128K are not supported\n");
+ return (EIO);
+ }
+
/*
* Note: bsize may not be a power of two here so we need to do an
* actual divide rather than a bitshift.
#define BSWAP_64(x) ((BSWAP_32(x) << 32) | BSWAP_32((x) >> 32))
/*
- * We currently support nine block sizes, from 512 bytes to 128K.
- * We could go higher, but the benefits are near-zero and the cost
- * of COWing a giant block to modify one byte would become excessive.
+ * Note: the boot loader can't actually read blocks larger than 128KB,
+ * due to lack of memory. Therefore its SPA_MAXBLOCKSIZE is still 128KB.
*/
#define SPA_MINBLOCKSHIFT 9
#define SPA_MAXBLOCKSHIFT 17
#define SPA_MINBLOCKSIZE (1ULL << SPA_MINBLOCKSHIFT)
#define SPA_MAXBLOCKSIZE (1ULL << SPA_MAXBLOCKSHIFT)
-#define SPA_BLOCKSIZES (SPA_MAXBLOCKSHIFT - SPA_MINBLOCKSHIFT + 1)
-
/*
* The DVA size encodings for LSIZE and PSIZE support blocks up to 32MB.
* The ASIZE encoding should be at least 64 times larger (6 more bits)
{
return ((c >= 'a' && c <= 'z') ||
(c >= '0' && c <= '9') ||
- c == (after_colon ? '_' : '.'));
+ (after_colon && c == '_') ||
+ (!after_colon && (c == '.' || c == '-')));
}
/*
"com.delphix:embedded_data", "embedded_data",
"Blocks which compress very well use even less space.",
B_FALSE, B_TRUE, B_TRUE, NULL);
+
+ static const spa_feature_t large_blocks_deps[] = {
+ SPA_FEATURE_EXTENSIBLE_DATASET,
+ SPA_FEATURE_NONE
+ };
+ zfeature_register(SPA_FEATURE_LARGE_BLOCKS,
+ "org.open-zfs:large_blocks", "large_blocks",
+ "Support for blocks larger than 128KB.", B_FALSE, B_FALSE, B_FALSE,
+ large_blocks_deps);
}
SPA_FEATURE_EMBEDDED_DATA,
SPA_FEATURE_BOOKMARKS,
SPA_FEATURE_FS_SS_LIMIT,
+ SPA_FEATURE_LARGE_BLOCKS,
SPA_FEATURES
} spa_feature_t;
/* inherit number properties */
zprop_register_number(ZFS_PROP_RECORDSIZE, "recordsize",
- SPA_MAXBLOCKSIZE, PROP_INHERIT,
- ZFS_TYPE_FILESYSTEM, "512 to 128k, power of 2", "RECSIZE");
+ SPA_OLD_MAXBLOCKSIZE, PROP_INHERIT,
+ ZFS_TYPE_FILESYSTEM, "512 to 1M, power of 2", "RECSIZE");
/* hidden properties */
zprop_register_hidden(ZFS_PROP_CREATETXG, "createtxg", PROP_TYPE_NUMBER,
/* hidden properties */
zprop_register_hidden(ZPOOL_PROP_NAME, "name", PROP_TYPE_STRING,
PROP_READONLY, ZFS_TYPE_POOL, "NAME");
+ zprop_register_hidden(ZPOOL_PROP_MAXBLOCKSIZE, "maxblocksize",
+ PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_POOL, "MAXBLOCKSIZE");
}
/*
if (!spa_feature_is_active(spa, SPA_FEATURE_EMPTY_BPOBJ)) {
ASSERT0(dp->dp_empty_bpobj);
dp->dp_empty_bpobj =
- bpobj_alloc(os, SPA_MAXBLOCKSIZE, tx);
+ bpobj_alloc(os, SPA_OLD_MAXBLOCKSIZE, tx);
VERIFY(zap_add(os,
DMU_POOL_DIRECTORY_OBJECT,
DMU_POOL_EMPTY_BPOBJ, sizeof (uint64_t), 1,
dmu_buf_will_dirty(bpo->bpo_dbuf, tx);
if (bpo->bpo_phys->bpo_subobjs == 0) {
bpo->bpo_phys->bpo_subobjs = dmu_object_alloc(bpo->bpo_os,
- DMU_OT_BPOBJ_SUBOBJ, SPA_MAXBLOCKSIZE, DMU_OT_NONE, 0, tx);
+ DMU_OT_BPOBJ_SUBOBJ, SPA_OLD_MAXBLOCKSIZE,
+ DMU_OT_NONE, 0, tx);
}
dmu_object_info_t doi;
bptree_phys_t *bt;
obj = dmu_object_alloc(os, DMU_OTN_UINT64_METADATA,
- SPA_MAXBLOCKSIZE, DMU_OTN_UINT64_METADATA,
+ SPA_OLD_MAXBLOCKSIZE, DMU_OTN_UINT64_METADATA,
sizeof (bptree_phys_t), tx);
/*
return (SET_ERROR(ENOTSUP));
if (blksz == 0)
blksz = SPA_MINBLOCKSIZE;
- if (blksz > SPA_MAXBLOCKSIZE)
- blksz = SPA_MAXBLOCKSIZE;
- else
- blksz = P2ROUNDUP(blksz, SPA_MINBLOCKSIZE);
+ ASSERT3U(blksz, <=, spa_maxblocksize(dmu_objset_spa(db->db_objset)));
+ blksz = P2ROUNDUP(blksz, SPA_MINBLOCKSIZE);
DB_DNODE_ENTER(db);
dn = DB_DNODE(db);
zil_set_logbias(os->os_zil, newval);
}
+static void
+recordsize_changed_cb(void *arg, uint64_t newval)
+{
+ objset_t *os = arg;
+
+ os->os_recordsize = newval;
+}
+
void
dmu_objset_byteswap(void *buf, size_t size)
{
ZFS_PROP_REDUNDANT_METADATA),
redundant_metadata_changed_cb, os);
}
+ if (err == 0) {
+ err = dsl_prop_register(ds,
+ zfs_prop_to_name(ZFS_PROP_RECORDSIZE),
+ recordsize_changed_cb, os);
+ }
}
if (err != 0) {
VERIFY(arc_buf_remove_ref(os->os_phys_buf,
VERIFY0(dsl_prop_unregister(ds,
zfs_prop_to_name(ZFS_PROP_REDUNDANT_METADATA),
redundant_metadata_changed_cb, os));
+ VERIFY0(dsl_prop_unregister(ds,
+ zfs_prop_to_name(ZFS_PROP_RECORDSIZE),
+ recordsize_changed_cb, os));
}
VERIFY0(dsl_prop_unregister(ds,
zfs_prop_to_name(ZFS_PROP_PRIMARYCACHE),
drrw->drr_offset = offset;
drrw->drr_length = blksz;
drrw->drr_toguid = dsp->dsa_toguid;
- if (BP_IS_EMBEDDED(bp)) {
+ if (bp == NULL || BP_IS_EMBEDDED(bp)) {
/*
- * There's no pre-computed checksum of embedded BP's, so
- * (like fletcher4-checkummed blocks) userland will have
- * to compute a dedup-capable checksum itself.
+ * There's no pre-computed checksum for partial-block
+ * writes or embedded BP's, so (like
+ * fletcher4-checkummed blocks) userland will have to
+ * compute a dedup-capable checksum itself.
*/
drrw->drr_checksumtype = ZIO_CHECKSUM_OFF;
} else {
drro->drr_compress = dnp->dn_compress;
drro->drr_toguid = dsp->dsa_toguid;
+ if (!(dsp->dsa_featureflags & DMU_BACKUP_FEATURE_LARGE_BLOCKS) &&
+ drro->drr_blksz > SPA_OLD_MAXBLOCKSIZE)
+ drro->drr_blksz = SPA_OLD_MAXBLOCKSIZE;
+
if (dump_bytes(dsp, dsp->dsa_drr, sizeof (dmu_replay_record_t)) != 0)
return (SET_ERROR(EINTR));
uint32_t aflags = ARC_WAIT;
arc_buf_t *abuf;
int blksz = BP_GET_LSIZE(bp);
+ uint64_t offset;
ASSERT3U(blksz, ==, dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
ASSERT0(zb->zb_level);
}
}
- err = dump_write(dsp, type, zb->zb_object, zb->zb_blkid * blksz,
- blksz, bp, abuf->b_data);
+ offset = zb->zb_blkid * blksz;
+
+ if (!(dsp->dsa_featureflags &
+ DMU_BACKUP_FEATURE_LARGE_BLOCKS) &&
+ blksz > SPA_OLD_MAXBLOCKSIZE) {
+ char *buf = abuf->b_data;
+ while (blksz > 0 && err == 0) {
+ int n = MIN(blksz, SPA_OLD_MAXBLOCKSIZE);
+ err = dump_write(dsp, type, zb->zb_object,
+ offset, n, NULL, buf);
+ offset += n;
+ buf += n;
+ blksz -= n;
+ }
+ } else {
+ err = dump_write(dsp, type, zb->zb_object,
+ offset, blksz, bp, abuf->b_data);
+ }
(void) arc_buf_remove_ref(abuf, &abuf);
}
dmu_send_impl(void *tag, dsl_pool_t *dp, dsl_dataset_t *ds,
zfs_bookmark_phys_t *fromzb, boolean_t is_clone, boolean_t embedok,
#ifdef illumos
- int outfd, vnode_t *vp, offset_t *off)
+ boolean_t large_block_ok, int outfd, vnode_t *vp, offset_t *off)
#else
- int outfd, struct file *fp, offset_t *off)
+ boolean_t large_block_ok, int outfd, struct file *fp, offset_t *off)
#endif
{
objset_t *os;
}
#endif
+ if (large_block_ok && ds->ds_large_blocks)
+ featureflags |= DMU_BACKUP_FEATURE_LARGE_BLOCKS;
if (embedok &&
spa_feature_is_active(dp->dp_spa, SPA_FEATURE_EMBEDDED_DATA)) {
featureflags |= DMU_BACKUP_FEATURE_EMBED_DATA;
int
dmu_send_obj(const char *pool, uint64_t tosnap, uint64_t fromsnap,
+ boolean_t embedok, boolean_t large_block_ok,
#ifdef illumos
- boolean_t embedok, int outfd, vnode_t *vp, offset_t *off)
+ int outfd, vnode_t *vp, offset_t *off)
#else
- boolean_t embedok, int outfd, struct file *fp, offset_t *off)
+ int outfd, struct file *fp, offset_t *off)
#endif
{
dsl_pool_t *dp;
zb.zbm_guid = fromds->ds_phys->ds_guid;
is_clone = (fromds->ds_dir != ds->ds_dir);
dsl_dataset_rele(fromds, FTAG);
- err = dmu_send_impl(FTAG, dp, ds, &zb, is_clone, embedok,
- outfd, fp, off);
+ err = dmu_send_impl(FTAG, dp, ds, &zb, is_clone,
+ embedok, large_block_ok, outfd, fp, off);
} else {
- err = dmu_send_impl(FTAG, dp, ds, NULL, B_FALSE, embedok,
- outfd, fp, off);
+ err = dmu_send_impl(FTAG, dp, ds, NULL, B_FALSE,
+ embedok, large_block_ok, outfd, fp, off);
}
dsl_dataset_rele(ds, FTAG);
return (err);
}
int
-dmu_send(const char *tosnap, const char *fromsnap, boolean_t embedok,
+dmu_send(const char *tosnap, const char *fromsnap,
+ boolean_t embedok, boolean_t large_block_ok,
#ifdef illumos
int outfd, vnode_t *vp, offset_t *off)
#else
dsl_pool_rele(dp, FTAG);
return (err);
}
- err = dmu_send_impl(FTAG, dp, ds, &zb, is_clone, embedok,
- outfd, fp, off);
+ err = dmu_send_impl(FTAG, dp, ds, &zb, is_clone,
+ embedok, large_block_ok, outfd, fp, off);
} else {
- err = dmu_send_impl(FTAG, dp, ds, NULL, B_FALSE, embedok,
- outfd, fp, off);
+ err = dmu_send_impl(FTAG, dp, ds, NULL, B_FALSE,
+ embedok, large_block_ok, outfd, fp, off);
}
if (owned)
dsl_dataset_disown(ds, FTAG);
!spa_feature_is_enabled(dp->dp_spa, SPA_FEATURE_LZ4_COMPRESS))
return (SET_ERROR(ENOTSUP));
+ /*
+ * The receiving code doesn't know how to translate large blocks
+ * to smaller ones, so the pool must have the LARGE_BLOCKS
+ * feature enabled if the stream has LARGE_BLOCKS.
+ */
+ if ((featureflags & DMU_BACKUP_FEATURE_LARGE_BLOCKS) &&
+ !spa_feature_is_enabled(dp->dp_spa, SPA_FEATURE_LARGE_BLOCKS))
+ return (SET_ERROR(ENOTSUP));
+
error = dsl_dataset_hold(dp, tofs, FTAG, &ds);
if (error == 0) {
/* target fs already exists; recv into temp clone */
}
VERIFY0(dsl_dataset_own_obj(dp, dsobj, dmu_recv_tag, &newds));
+ if ((DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) &
+ DMU_BACKUP_FEATURE_LARGE_BLOCKS) &&
+ !newds->ds_large_blocks) {
+ dsl_dataset_activate_large_blocks_sync_impl(dsobj, tx);
+ newds->ds_large_blocks = B_TRUE;
+ }
+
dmu_buf_will_dirty(newds->ds_dbuf, tx);
newds->ds_phys->ds_flags |= DS_FLAG_INCONSISTENT;
/* some things will require 8-byte alignment, so everything must */
ASSERT0(len % 8);
+ ASSERT3U(len, <=, ra->bufsize);
while (done < len) {
ssize_t resid;
drro->drr_compress >= ZIO_COMPRESS_FUNCTIONS ||
P2PHASE(drro->drr_blksz, SPA_MINBLOCKSIZE) ||
drro->drr_blksz < SPA_MINBLOCKSIZE ||
- drro->drr_blksz > SPA_MAXBLOCKSIZE ||
+ drro->drr_blksz > spa_maxblocksize(dmu_objset_spa(os)) ||
drro->drr_bonuslen > DN_MAX_BONUSLEN) {
return (SET_ERROR(EINVAL));
}
int err;
if (drrs->drr_length < SPA_MINBLOCKSIZE ||
- drrs->drr_length > SPA_MAXBLOCKSIZE)
+ drrs->drr_length > spa_maxblocksize(dmu_objset_spa(os)))
return (SET_ERROR(EINVAL));
data = restore_read(ra, drrs->drr_length, NULL);
ra.td = curthread;
ra.fp = fp;
ra.voff = *voffp;
- ra.bufsize = 1<<20;
+ ra.bufsize = SPA_MAXBLOCKSIZE;
ra.buf = kmem_alloc(ra.bufsize, KM_SLEEP);
/* these were verified in dmu_recv_begin */
return;
min_bs = SPA_MINBLOCKSHIFT;
- max_bs = SPA_MAXBLOCKSHIFT;
+ max_bs = highbit64(txh->txh_tx->tx_objset->os_recordsize) - 1;
min_ibs = DN_MIN_INDBLKSHIFT;
max_ibs = DN_MAX_INDBLKSHIFT;
*/
ASSERT(dn->dn_datablkshift != 0);
min_bs = max_bs = dn->dn_datablkshift;
+ } else {
+ /*
+ * The blocksize can increase up to the recordsize,
+ * or if it is already more than the recordsize,
+ * up to the next power of 2.
+ */
+ min_bs = highbit64(dn->dn_datablksz - 1);
+ max_bs = MAX(max_bs, highbit64(dn->dn_datablksz - 1));
}
/*
bp = &dn->dn_phys->dn_blkptr[0];
if (dsl_dataset_block_freeable(dn->dn_objset->os_dsl_dataset,
bp, bp->blk_birth))
- txh->txh_space_tooverwrite += SPA_MAXBLOCKSIZE;
+ txh->txh_space_tooverwrite += MZAP_MAX_BLKSZ;
else
- txh->txh_space_towrite += SPA_MAXBLOCKSIZE;
+ txh->txh_space_towrite += MZAP_MAX_BLKSZ;
if (!BP_IS_HOLE(bp))
- txh->txh_space_tounref += SPA_MAXBLOCKSIZE;
+ txh->txh_space_tounref += MZAP_MAX_BLKSZ;
return;
}
/* If blkptr doesn't exist then add space to towrite */
if (!(dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR)) {
- txh->txh_space_towrite += SPA_MAXBLOCKSIZE;
+ txh->txh_space_towrite += SPA_OLD_MAXBLOCKSIZE;
} else {
blkptr_t *bp;
bp = &dn->dn_phys->dn_spill;
if (dsl_dataset_block_freeable(dn->dn_objset->os_dsl_dataset,
bp, bp->blk_birth))
- txh->txh_space_tooverwrite += SPA_MAXBLOCKSIZE;
+ txh->txh_space_tooverwrite += SPA_OLD_MAXBLOCKSIZE;
else
- txh->txh_space_towrite += SPA_MAXBLOCKSIZE;
+ txh->txh_space_towrite += SPA_OLD_MAXBLOCKSIZE;
if (!BP_IS_HOLE(bp))
- txh->txh_space_tounref += SPA_MAXBLOCKSIZE;
+ txh->txh_space_tounref += SPA_OLD_MAXBLOCKSIZE;
}
}
{
int i;
+ ASSERT3U(blocksize, <=,
+ spa_maxblocksize(dmu_objset_spa(dn->dn_objset)));
if (blocksize == 0)
blocksize = 1 << zfs_default_bs;
- else if (blocksize > SPA_MAXBLOCKSIZE)
- blocksize = SPA_MAXBLOCKSIZE;
else
blocksize = P2ROUNDUP(blocksize, SPA_MINBLOCKSIZE);
int nblkptr;
ASSERT3U(blocksize, >=, SPA_MINBLOCKSIZE);
- ASSERT3U(blocksize, <=, SPA_MAXBLOCKSIZE);
+ ASSERT3U(blocksize, <=,
+ spa_maxblocksize(dmu_objset_spa(dn->dn_objset)));
ASSERT0(blocksize % SPA_MINBLOCKSIZE);
ASSERT(dn->dn_object != DMU_META_DNODE_OBJECT || dmu_tx_private_ok(tx));
ASSERT(tx->tx_txg != 0);
dmu_buf_impl_t *db;
int err;
+ ASSERT3U(size, <=, spa_maxblocksize(dmu_objset_spa(dn->dn_objset)));
if (size == 0)
size = SPA_MINBLOCKSIZE;
- if (size > SPA_MAXBLOCKSIZE)
- size = SPA_MAXBLOCKSIZE;
else
size = P2ROUNDUP(size, SPA_MINBLOCKSIZE);
#include <sys/dsl_userhold.h>
#include <sys/dsl_bookmark.h>
+/*
+ * The SPA supports block sizes up to 16MB. However, very large blocks
+ * can have an impact on i/o latency (e.g. tying up a spinning disk for
+ * ~300ms), and also potentially on the memory allocator. Therefore,
+ * we do not allow the recordsize to be set larger than zfs_max_recordsize
+ * (default 1MB). Larger blocks can be created by changing this tunable,
+ * and pools with larger blocks can always be imported and used, regardless
+ * of this setting.
+ */
+int zfs_max_recordsize = 1 * 1024 * 1024;
+
#define SWITCH64(x, y) \
{ \
uint64_t __tmp = (x); \
#define DS_REF_MAX (1ULL << 62)
-#define DSL_DEADLIST_BLOCKSIZE SPA_MAXBLOCKSIZE
-
/*
* Figure out how much of this delta should be propogated to the dsl_dir
* layer. If there's a refreservation, that space has already been
ds->ds_phys->ds_compressed_bytes += compressed;
ds->ds_phys->ds_uncompressed_bytes += uncompressed;
ds->ds_phys->ds_unique_bytes += used;
+ if (BP_GET_LSIZE(bp) > SPA_OLD_MAXBLOCKSIZE)
+ ds->ds_need_large_blocks = B_TRUE;
mutex_exit(&ds->ds_lock);
dsl_dir_diduse_space(ds->ds_dir, DD_USED_HEAD, delta,
compressed, uncompressed, tx);
list_create(&ds->ds_sendstreams, sizeof (dmu_sendarg_t),
offsetof(dmu_sendarg_t, dsa_link));
+ if (doi.doi_type == DMU_OTN_ZAP_METADATA) {
+ err = zap_contains(mos, dsobj, DS_FIELD_LARGE_BLOCKS);
+ if (err == 0)
+ ds->ds_large_blocks = B_TRUE;
+ else
+ ASSERT3U(err, ==, ENOENT);
+ }
+
if (err == 0) {
err = dsl_dir_hold_obj(dp,
ds->ds_phys->ds_dir_obj, NULL, ds, &ds->ds_dir);
dsphys->ds_flags |= origin->ds_phys->ds_flags &
(DS_FLAG_INCONSISTENT | DS_FLAG_CI_DATASET);
+ if (origin->ds_large_blocks)
+ dsl_dataset_activate_large_blocks_sync_impl(dsobj, tx);
+
dmu_buf_will_dirty(origin->ds_dbuf, tx);
origin->ds_phys->ds_num_children++;
dsphys->ds_bp = ds->ds_phys->ds_bp;
dmu_buf_rele(dbuf, FTAG);
+ if (ds->ds_large_blocks)
+ dsl_dataset_activate_large_blocks_sync_impl(dsobj, tx);
+
ASSERT3U(ds->ds_prev != 0, ==, ds->ds_phys->ds_prev_snap_obj != 0);
if (ds->ds_prev) {
uint64_t next_clones_obj =
ds->ds_phys->ds_fsid_guid = ds->ds_fsid_guid;
dmu_objset_sync(ds->ds_objset, zio, tx);
+
+ if (ds->ds_need_large_blocks && !ds->ds_large_blocks) {
+ dsl_dataset_activate_large_blocks_sync_impl(ds->ds_object, tx);
+ ds->ds_large_blocks = B_TRUE;
+ }
}
static void
return (err);
}
+static int
+dsl_dataset_activate_large_blocks_check(void *arg, dmu_tx_t *tx)
+{
+ const char *dsname = arg;
+ dsl_dataset_t *ds;
+ dsl_pool_t *dp = dmu_tx_pool(tx);
+ int error = 0;
+
+ if (!spa_feature_is_enabled(dp->dp_spa, SPA_FEATURE_LARGE_BLOCKS))
+ return (SET_ERROR(ENOTSUP));
+
+ ASSERT(spa_feature_is_enabled(dp->dp_spa,
+ SPA_FEATURE_EXTENSIBLE_DATASET));
+
+ error = dsl_dataset_hold(dp, dsname, FTAG, &ds);
+ if (error != 0)
+ return (error);
+
+ if (ds->ds_large_blocks)
+ error = EALREADY;
+ dsl_dataset_rele(ds, FTAG);
+
+ return (error);
+}
+
+void
+dsl_dataset_activate_large_blocks_sync_impl(uint64_t dsobj, dmu_tx_t *tx)
+{
+ spa_t *spa = dmu_tx_pool(tx)->dp_spa;
+ objset_t *mos = dmu_tx_pool(tx)->dp_meta_objset;
+ uint64_t zero = 0;
+
+ spa_feature_incr(spa, SPA_FEATURE_LARGE_BLOCKS, tx);
+ dmu_object_zapify(mos, dsobj, DMU_OT_DSL_DATASET, tx);
+
+ VERIFY0(zap_add(mos, dsobj, DS_FIELD_LARGE_BLOCKS,
+ sizeof (zero), 1, &zero, tx));
+}
+
+static void
+dsl_dataset_activate_large_blocks_sync(void *arg, dmu_tx_t *tx)
+{
+ const char *dsname = arg;
+ dsl_dataset_t *ds;
+
+ VERIFY0(dsl_dataset_hold(dmu_tx_pool(tx), dsname, FTAG, &ds));
+
+ dsl_dataset_activate_large_blocks_sync_impl(ds->ds_object, tx);
+ ASSERT(!ds->ds_large_blocks);
+ ds->ds_large_blocks = B_TRUE;
+ dsl_dataset_rele(ds, FTAG);
+}
+
+int
+dsl_dataset_activate_large_blocks(const char *dsname)
+{
+ int error;
+
+ error = dsl_sync_task(dsname,
+ dsl_dataset_activate_large_blocks_check,
+ dsl_dataset_activate_large_blocks_sync, (void *)dsname,
+ 1, ZFS_SPACE_CHECK_RESERVED);
+
+ /*
+ * EALREADY indicates that this dataset already supports large blocks.
+ */
+ if (error == EALREADY)
+ error = 0;
+ return (error);
+}
+
/*
* Return TRUE if 'earlier' is an earlier snapshot in 'later's timeline.
* For example, they could both be snapshots of the same filesystem, and
dsl_deadlist_alloc(objset_t *os, dmu_tx_t *tx)
{
if (spa_version(dmu_objset_spa(os)) < SPA_VERSION_DEADLISTS)
- return (bpobj_alloc(os, SPA_MAXBLOCKSIZE, tx));
+ return (bpobj_alloc(os, SPA_OLD_MAXBLOCKSIZE, tx));
return (zap_create(os, DMU_OT_DEADLIST, DMU_OT_DEADLIST_HDR,
sizeof (dsl_deadlist_phys_t), tx));
}
{
if (dle->dle_bpobj.bpo_object ==
dmu_objset_pool(dl->dl_os)->dp_empty_bpobj) {
- uint64_t obj = bpobj_alloc(dl->dl_os, SPA_MAXBLOCKSIZE, tx);
+ uint64_t obj = bpobj_alloc(dl->dl_os, SPA_OLD_MAXBLOCKSIZE, tx);
bpobj_close(&dle->dle_bpobj);
bpobj_decr_empty(dl->dl_os, tx);
VERIFY3U(0, ==, bpobj_open(&dle->dle_bpobj, dl->dl_os, obj));
dle = kmem_alloc(sizeof (*dle), KM_SLEEP);
dle->dle_mintxg = mintxg;
- obj = bpobj_alloc_empty(dl->dl_os, SPA_MAXBLOCKSIZE, tx);
+ obj = bpobj_alloc_empty(dl->dl_os, SPA_OLD_MAXBLOCKSIZE, tx);
VERIFY3U(0, ==, bpobj_open(&dle->dle_bpobj, dl->dl_os, obj));
avl_add(&dl->dl_tree, dle);
if (dle->dle_mintxg >= maxtxg)
break;
- obj = bpobj_alloc_empty(dl->dl_os, SPA_MAXBLOCKSIZE, tx);
+ obj = bpobj_alloc_empty(dl->dl_os, SPA_OLD_MAXBLOCKSIZE, tx);
VERIFY3U(0, ==, zap_add_int_key(dl->dl_os, newobj,
dle->dle_mintxg, obj, tx));
}
obj = ds->ds_object;
+ if (ds->ds_large_blocks) {
+ ASSERT0(zap_contains(mos, obj, DS_FIELD_LARGE_BLOCKS));
+ spa_feature_decr(dp->dp_spa, SPA_FEATURE_LARGE_BLOCKS, tx);
+ }
if (ds->ds_phys->ds_prev_snap_obj != 0) {
ASSERT3P(ds->ds_prev, ==, NULL);
VERIFY0(dsl_dataset_hold_obj(dp,
ASSERT0(ds->ds_reserved);
}
+ if (ds->ds_large_blocks)
+ spa_feature_decr(dp->dp_spa, SPA_FEATURE_LARGE_BLOCKS, tx);
+
dsl_scan_ds_destroyed(ds, tx);
obj = ds->ds_object;
FREE_DIR_NAME, &dp->dp_free_dir));
/* create and open the free_bplist */
- obj = bpobj_alloc(dp->dp_meta_objset, SPA_MAXBLOCKSIZE, tx);
+ obj = bpobj_alloc(dp->dp_meta_objset, SPA_OLD_MAXBLOCKSIZE, tx);
VERIFY(zap_add(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT,
DMU_POOL_FREE_BPOBJ, sizeof (uint64_t), 1, &obj, tx) == 0);
VERIFY0(bpobj_open(&dp->dp_free_bpobj,
* subobj support. So call dmu_object_alloc() directly.
*/
obj = dmu_object_alloc(dp->dp_meta_objset, DMU_OT_BPOBJ,
- SPA_MAXBLOCKSIZE, DMU_OT_BPOBJ_HDR, sizeof (bpobj_phys_t), tx);
+ SPA_OLD_MAXBLOCKSIZE, DMU_OT_BPOBJ_HDR, sizeof (bpobj_phys_t), tx);
VERIFY0(zap_add(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT,
DMU_POOL_FREE_BPOBJ, sizeof (uint64_t), 1, &obj, tx));
VERIFY0(bpobj_open(&dp->dp_free_bpobj, dp->dp_meta_objset, obj));
* an allocation of this size then it switches to using more
* aggressive strategy (i.e search by size rather than offset).
*/
-uint64_t metaslab_df_alloc_threshold = SPA_MAXBLOCKSIZE;
+uint64_t metaslab_df_alloc_threshold = SPA_OLD_MAXBLOCKSIZE;
SYSCTL_QUAD(_vfs_zfs_metaslab, OID_AUTO, df_alloc_threshold, CTLFLAG_RWTUN,
&metaslab_df_alloc_threshold, 0,
"Minimum size which forces the dynamic allocator to change it's allocation strategy");
if (size == 0) {
blocksize = SPA_MINBLOCKSIZE;
- } else if (size > SPA_MAXBLOCKSIZE) {
+ } else if (size > SPA_OLD_MAXBLOCKSIZE) {
ASSERT(0);
return (SET_ERROR(EFBIG));
} else {
hdrsize = sa_find_sizes(sa, attr_desc, attr_count, hdl->sa_bonus,
SA_BONUS, &i, &used, &spilling);
- if (used > SPA_MAXBLOCKSIZE)
+ if (used > SPA_OLD_MAXBLOCKSIZE)
return (SET_ERROR(EFBIG));
VERIFY(0 == dmu_set_bonus(hdl->sa_bonus, spilling ?
attr_count - i, hdl->sa_spill, SA_SPILL, &i,
&spill_used, &dummy);
- if (spill_used > SPA_MAXBLOCKSIZE)
+ if (spill_used > SPA_OLD_MAXBLOCKSIZE)
return (SET_ERROR(EFBIG));
buf_space = hdl->sa_spill->db_size - spillhdrsize;
spa_prop_add_list(*nvp, ZPOOL_PROP_ALTROOT, spa->spa_root,
0, ZPROP_SRC_LOCAL);
+ if (spa_feature_is_enabled(spa, SPA_FEATURE_LARGE_BLOCKS)) {
+ spa_prop_add_list(*nvp, ZPOOL_PROP_MAXBLOCKSIZE, NULL,
+ MIN(zfs_max_recordsize, SPA_MAXBLOCKSIZE), ZPROP_SRC_NONE);
+ } else {
+ spa_prop_add_list(*nvp, ZPOOL_PROP_MAXBLOCKSIZE, NULL,
+ SPA_OLD_MAXBLOCKSIZE, 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,
if (!error) {
objset_t *os;
- uint64_t compress;
+ uint64_t propval;
if (strval == NULL || strval[0] == '\0') {
objnum = zpool_prop_default_numeric(
if (error = dmu_objset_hold(strval, FTAG, &os))
break;
- /* Must be ZPL and not gzip compressed. */
+ /*
+ * Must be ZPL, and its property settings
+ * must be supported by GRUB (compression
+ * is not gzip, and large blocks are not used).
+ */
if (dmu_objset_type(os) != DMU_OST_ZFS) {
error = SET_ERROR(ENOTSUP);
} else if ((error =
dsl_prop_get_int_ds(dmu_objset_ds(os),
zfs_prop_to_name(ZFS_PROP_COMPRESSION),
- &compress)) == 0 &&
- !BOOTFS_COMPRESS_VALID(compress)) {
+ &propval)) == 0 &&
+ !BOOTFS_COMPRESS_VALID(propval)) {
+ error = SET_ERROR(ENOTSUP);
+ } else if ((error =
+ dsl_prop_get_int_ds(dmu_objset_ds(os),
+ zfs_prop_to_name(ZFS_PROP_RECORDSIZE),
+ &propval)) == 0 &&
+ propval > SPA_OLD_MAXBLOCKSIZE) {
error = SET_ERROR(ENOTSUP);
} else {
objnum = dmu_objset_id(os);
ASSERT(spa->spa_history == 0);
spa->spa_history = dmu_object_alloc(mos, DMU_OT_SPA_HISTORY,
- SPA_MAXBLOCKSIZE, DMU_OT_SPA_HISTORY_OFFSETS,
+ SPA_OLD_MAXBLOCKSIZE, DMU_OT_SPA_HISTORY_OFFSETS,
sizeof (spa_history_phys_t), tx);
VERIFY(zap_add(mos, DMU_POOL_DIRECTORY_OBJECT,
{
return (spa->spa_debug);
}
+
+int
+spa_maxblocksize(spa_t *spa)
+{
+ if (spa_feature_is_enabled(spa, SPA_FEATURE_LARGE_BLOCKS))
+ return (SPA_MAXBLOCKSIZE);
+ else
+ return (SPA_OLD_MAXBLOCKSIZE);
+}
* The maximum number of bytes that can be accessed as part of one
* operation, including metadata.
*/
-#define DMU_MAX_ACCESS (10<<20) /* 10MB */
+#define DMU_MAX_ACCESS (32 * 1024 * 1024) /* 32MB */
#define DMU_MAX_DELETEBLKCNT (20480) /* ~5MB of indirect blocks */
#define DMU_USERUSED_OBJECT (-1ULL)
void xuio_stat_wbuf_nocopy();
extern int zfs_prefetch_disable;
+extern int zfs_max_recordsize;
/*
* Asynchronously try to read in the data.
zfs_cache_type_t os_secondary_cache;
zfs_sync_type_t os_sync;
zfs_redundant_metadata_type_t os_redundant_metadata;
+ int os_recordsize;
/* no lock needed: */
struct dmu_tx *os_synctx; /* XXX sketchy */
struct drr_begin;
struct avl_tree;
-int dmu_send(const char *tosnap, const char *fromsnap, boolean_t embedok,
+int dmu_send(const char *tosnap, const char *fromsnap,
+ boolean_t embedok, boolean_t large_block_ok,
#ifdef illumos
int outfd, struct vnode *vp, offset_t *off);
#else
int dmu_send_estimate(struct dsl_dataset *ds, struct dsl_dataset *fromds,
uint64_t *sizep);
int dmu_send_obj(const char *pool, uint64_t tosnap, uint64_t fromsnap,
+ boolean_t embedok, boolean_t large_block_ok,
#ifdef illumos
- boolean_t embedok, int outfd, vnode_t *vp, offset_t *off);
+ int outfd, struct vnode *vp, offset_t *off);
#else
- boolean_t embedok, int outfd, struct file *fp, offset_t *off);
+ int outfd, struct file *fp, offset_t *off);
#endif
typedef struct dmu_recv_cookie {
*/
#define DS_FIELD_BOOKMARK_NAMES "com.delphix:bookmarks"
+/*
+ * This field is present (with value=0) if this dataset may contain large
+ * blocks (>128KB). If it is present, then this dataset
+ * is counted in the refcount of the SPA_FEATURE_LARGE_BLOCKS feature.
+ */
+#define DS_FIELD_LARGE_BLOCKS "org.open-zfs:large_blocks"
+
/*
* DS_FLAG_CI_DATASET is set if the dataset contains a file system whose
* name lookups should be performed case-insensitively.
/* only used in syncing context, only valid for non-snapshots: */
struct dsl_dataset *ds_prev;
uint64_t ds_bookmarks; /* DMU_OTN_ZAP_METADATA */
+ boolean_t ds_large_blocks;
+ boolean_t ds_need_large_blocks;
/* has internal locking: */
dsl_deadlist_t ds_deadlist;
int dsl_dataset_space_wouldfree(dsl_dataset_t *firstsnap, dsl_dataset_t *last,
uint64_t *usedp, uint64_t *compp, uint64_t *uncompp);
boolean_t dsl_dataset_is_dirty(dsl_dataset_t *ds);
+int dsl_dataset_activate_large_blocks(const char *dsname);
+void dsl_dataset_activate_large_blocks_sync_impl(uint64_t dsobj, dmu_tx_t *tx);
int dsl_dsobj_to_dsname(char *pname, uint64_t obj, char *buf);
_NOTE(CONSTCOND) } while (0)
/*
- * We currently support nine block sizes, from 512 bytes to 128K.
- * We could go higher, but the benefits are near-zero and the cost
- * of COWing a giant block to modify one byte would become excessive.
+ * We currently support block sizes from 512 bytes to 16MB.
+ * The benefits of larger blocks, and thus larger IO, need to be weighed
+ * against the cost of COWing a giant block to modify one byte, and the
+ * large latency of reading or writing a large block.
+ *
+ * Note that although blocks up to 16MB are supported, the recordsize
+ * property can not be set larger than zfs_max_recordsize (default 1MB).
+ * See the comment near zfs_max_recordsize in dsl_dataset.c for details.
+ *
+ * Note that although the LSIZE field of the blkptr_t can store sizes up
+ * to 32MB, the dnode's dn_datablkszsec can only store sizes up to
+ * 32MB - 512 bytes. Therefore, we limit SPA_MAXBLOCKSIZE to 16MB.
*/
#define SPA_MINBLOCKSHIFT 9
-#define SPA_MAXBLOCKSHIFT 17
+#define SPA_OLD_MAXBLOCKSHIFT 17
+#define SPA_MAXBLOCKSHIFT 24
#define SPA_MINBLOCKSIZE (1ULL << SPA_MINBLOCKSHIFT)
+#define SPA_OLD_MAXBLOCKSIZE (1ULL << SPA_OLD_MAXBLOCKSHIFT)
#define SPA_MAXBLOCKSIZE (1ULL << SPA_MAXBLOCKSHIFT)
-#define SPA_BLOCKSIZES (SPA_MAXBLOCKSHIFT - SPA_MINBLOCKSHIFT + 1)
-
/*
* Default maximum supported logical ashift.
*
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_mode(spa_t *spa);
extern uint64_t zfs_strtonum(const char *str, char **nptr);
#define MZAP_ENT_LEN 64
#define MZAP_NAME_LEN (MZAP_ENT_LEN - 8 - 4 - 2)
-#define MZAP_MAX_BLKSHIFT SPA_MAXBLOCKSHIFT
-#define MZAP_MAX_BLKSZ (1 << MZAP_MAX_BLKSHIFT)
+#define MZAP_MAX_BLKSZ SPA_OLD_MAXBLOCKSIZE
#define ZAP_NEED_CD (-1U)
/* flags #3 - #15 are reserved for incompatible closed-source implementations */
#define DMU_BACKUP_FEATURE_EMBED_DATA (1<<16)
#define DMU_BACKUP_FEATURE_EMBED_DATA_LZ4 (1<<17)
+/* flag #18 is reserved for a Delphix feature */
+#define DMU_BACKUP_FEATURE_LARGE_BLOCKS (1<<19)
/*
* Mask of all supported backup features
*/
#define DMU_BACKUP_FEATURE_MASK (DMU_BACKUP_FEATURE_DEDUP | \
DMU_BACKUP_FEATURE_DEDUPPROPS | DMU_BACKUP_FEATURE_SA_SPILL | \
- DMU_BACKUP_FEATURE_EMBED_DATA | DMU_BACKUP_FEATURE_EMBED_DATA_LZ4)
+ DMU_BACKUP_FEATURE_EMBED_DATA | DMU_BACKUP_FEATURE_EMBED_DATA_LZ4 | \
+ DMU_BACKUP_FEATURE_LARGE_BLOCKS)
/* Are all features in the given flag word currently supported? */
#define DMU_STREAM_SUPPORTED(x) (!((x) & ~DMU_BACKUP_FEATURE_MASK))
#define ZFS_SHARES_DIR "SHARES"
#define ZFS_SA_ATTRS "SA_ATTRS"
-#define ZFS_MAX_BLOCKSIZE (SPA_MAXBLOCKSIZE)
-
/*
* Path component length
*
} zil_chain_t;
#define ZIL_MIN_BLKSZ 4096ULL
-#define ZIL_MAX_BLKSZ SPA_MAXBLOCKSIZE
/*
* The words of a log block checksum.
avl_node_t zn_node;
} zil_bp_node_t;
-#define ZIL_MAX_LOG_DATA (SPA_MAXBLOCKSIZE - sizeof (zil_chain_t) - \
+#define ZIL_MAX_LOG_DATA (SPA_OLD_MAXBLOCKSIZE - sizeof (zil_chain_t) - \
sizeof (lr_write_t))
#ifdef __cplusplus
/*
* Compute the raidz-deflation ratio. Note, we hard-code
- * in 128k (1 << 17) because it is the current "typical" blocksize.
- * Even if SPA_MAXBLOCKSIZE changes, this algorithm must never change,
- * or we will inconsistently account for existing bp's.
+ * in 128k (1 << 17) because it is the "typical" blocksize.
+ * Even though SPA_MAXBLOCKSIZE changed, this algorithm can not change,
+ * otherwise it would inconsistently account for existing bp's.
*/
vd->vdev_deflate_ratio = (1 << 17) /
(vdev_psize_to_asize(vd, 1 << 17) >> SPA_MINBLOCKSHIFT);
* we include spans of optional I/Os to aid aggregation at the disk even when
* they aren't able to help us aggregate at this level.
*/
-int zfs_vdev_aggregation_limit = SPA_MAXBLOCKSIZE;
+int zfs_vdev_aggregation_limit = SPA_OLD_MAXBLOCKSIZE;
int zfs_vdev_read_gap_limit = 32 << 10;
int zfs_vdev_write_gap_limit = 4 << 10;
/*
* Don't write past the end of the block
*/
- VERIFY3U(offset + size, <=, origoffset + SPA_MAXBLOCKSIZE);
+ VERIFY3U(offset + size, <=, origoffset + SPA_OLD_MAXBLOCKSIZE);
start = offset;
end = start + size;
* KB size.
*/
rm = vdev_raidz_map_alloc(data - (offset - origoffset),
- SPA_MAXBLOCKSIZE, origoffset, B_FALSE, tvd->vdev_ashift, vd->vdev_children,
- vd->vdev_nparity);
+ SPA_OLD_MAXBLOCKSIZE, origoffset, B_FALSE, tvd->vdev_ashift,
+ vd->vdev_children, vd->vdev_nparity);
coloffset = origoffset;
#include <sys/zap_leaf.h>
#include <sys/avl.h>
#include <sys/arc.h>
+#include <sys/dmu_objset.h>
#ifdef _KERNEL
#include <sys/sunddi.h>
uint64_t obj = dmu_object_alloc(os, ot, 0, bonustype, bonuslen, tx);
ASSERT(leaf_blockshift >= SPA_MINBLOCKSHIFT &&
- leaf_blockshift <= SPA_MAXBLOCKSHIFT &&
+ leaf_blockshift <= SPA_OLD_MAXBLOCKSHIFT &&
indirect_blockshift >= SPA_MINBLOCKSHIFT &&
- indirect_blockshift <= SPA_MAXBLOCKSHIFT);
+ indirect_blockshift <= SPA_OLD_MAXBLOCKSHIFT);
VERIFY(dmu_object_set_blocksize(os, obj,
1ULL << leaf_blockshift, indirect_blockshift, tx) == 0);
zap_t *zap;
int err = 0;
-
/*
* Since, we don't have a name, we cannot figure out which blocks will
* be affected in this operation. So, account for the worst case :
* large microzap results in a promotion to fatzap.
*/
if (name == NULL) {
- *towrite += (3 + (add ? 4 : 0)) * SPA_MAXBLOCKSIZE;
+ *towrite += (3 + (add ? 4 : 0)) * SPA_OLD_MAXBLOCKSIZE;
return (err);
}
/*
* We treat this case as similar to (name == NULL)
*/
- *towrite += (3 + (add ? 4 : 0)) * SPA_MAXBLOCKSIZE;
+ *towrite += (3 + (add ? 4 : 0)) * SPA_OLD_MAXBLOCKSIZE;
}
} else {
/*
* ptrtbl blocks
*/
if (dmu_buf_freeable(zap->zap_dbuf))
- *tooverwrite += SPA_MAXBLOCKSIZE;
+ *tooverwrite += MZAP_MAX_BLKSZ;
else
- *towrite += SPA_MAXBLOCKSIZE;
+ *towrite += MZAP_MAX_BLKSZ;
if (add) {
- *towrite += 4 * SPA_MAXBLOCKSIZE;
+ *towrite += 4 * MZAP_MAX_BLKSZ;
}
}
const char *propname = nvpair_name(pair);
zfs_prop_t prop = zfs_name_to_prop(propname);
uint64_t intval;
- int err;
+ int err = -1;
if (prop == ZPROP_INVAL) {
if (zfs_prop_userquota(propname))
* the SPA supports it. We ignore any errors here since
* we'll catch them later.
*/
- if (nvpair_type(pair) == DATA_TYPE_UINT64 &&
- nvpair_value_uint64(pair, &intval) == 0) {
+ if (nvpair_value_uint64(pair, &intval) == 0) {
if (intval >= ZIO_COMPRESS_GZIP_1 &&
intval <= ZIO_COMPRESS_GZIP_9 &&
zfs_earlier_version(dsname,
return (SET_ERROR(ENOTSUP));
break;
+ case ZFS_PROP_RECORDSIZE:
+ /* Record sizes above 128k need the feature to be enabled */
+ if (nvpair_value_uint64(pair, &intval) == 0 &&
+ intval > SPA_OLD_MAXBLOCKSIZE) {
+ spa_t *spa;
+
+ /*
+ * If this is a bootable dataset then
+ * the we don't allow large (>128K) blocks,
+ * because GRUB doesn't support them.
+ */
+ if (zfs_is_bootfs(dsname) &&
+ intval > SPA_OLD_MAXBLOCKSIZE) {
+ return (SET_ERROR(EDOM));
+ }
+
+ /*
+ * We don't allow setting the property above 1MB,
+ * unless the tunable has been changed.
+ */
+ if (intval > zfs_max_recordsize ||
+ intval > SPA_MAXBLOCKSIZE)
+ return (SET_ERROR(EDOM));
+
+ if ((err = spa_open(dsname, &spa, FTAG)) != 0)
+ return (err);
+
+ if (!spa_feature_is_enabled(spa,
+ SPA_FEATURE_LARGE_BLOCKS)) {
+ 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));
* zc_fromobj objsetid of incremental fromsnap (may be zero)
* zc_guid if set, estimate size of stream only. zc_cookie is ignored.
* output size in zc_objset_type.
- * zc_flags if =1, WRITE_EMBEDDED records are permitted
+ * zc_flags lzc_send_flags
*
* outputs:
* zc_objset_type estimated size, if zc_guid is set
offset_t off;
boolean_t estimate = (zc->zc_guid != 0);
boolean_t embedok = (zc->zc_flags & 0x1);
+ boolean_t large_block_ok = (zc->zc_flags & 0x2);
if (zc->zc_obj != 0) {
dsl_pool_t *dp;
off = fp->f_offset;
error = dmu_send_obj(zc->zc_name, zc->zc_sendobj,
+ zc->zc_fromobj, embedok, large_block_ok,
#ifdef illumos
- zc->zc_fromobj, embedok, zc->zc_cookie, fp->f_vnode, &off);
+ zc->zc_cookie, fp->f_vnode, &off);
#else
- zc->zc_fromobj, embedok, zc->zc_cookie, fp, &off);
+ zc->zc_cookie, fp, &off);
#endif
if (off >= 0 && off <= MAXOFFSET_T)
* innvl: {
* "fd" -> file descriptor to write stream to (int32)
* (optional) "fromsnap" -> full snap name to send an incremental from
+ * (optional) "largeblockok" -> (value ignored)
+ * indicates that blocks > 128KB are permitted
* (optional) "embedok" -> (value ignored)
* presence indicates DRR_WRITE_EMBEDDED records are permitted
* }
offset_t off;
char *fromname = NULL;
int fd;
+ boolean_t largeblockok;
boolean_t embedok;
error = nvlist_lookup_int32(innvl, "fd", &fd);
(void) nvlist_lookup_string(innvl, "fromsnap", &fromname);
+ largeblockok = nvlist_exists(innvl, "largeblockok");
embedok = nvlist_exists(innvl, "embedok");
file_t *fp = getf(fd, cap_rights_init(&rights, CAP_READ));
return (SET_ERROR(EBADF));
off = fp->f_offset;
+ error = dmu_send(snapname, fromname, embedok, largeblockok,
#ifdef illumos
- error = dmu_send(snapname, fromname, embedok, fd, fp->f_vnode, &off);
+ fd, fp->f_vnode, &off);
#else
- error = dmu_send(snapname, fromname, embedok, fd, fp, &off);
+ fd, fp, &off);
#endif
#ifdef illumos
* If the write would overflow the largest block then split it.
*/
if (write_state != WR_INDIRECT && resid > ZIL_MAX_LOG_DATA)
- len = SPA_MAXBLOCKSIZE >> 1;
+ len = SPA_OLD_MAXBLOCKSIZE >> 1;
else
len = resid;
blksz_changed_cb(void *arg, uint64_t newval)
{
zfsvfs_t *zfsvfs = arg;
-
- if (newval < SPA_MINBLOCKSIZE ||
- newval > SPA_MAXBLOCKSIZE || !ISP2(newval))
- newval = SPA_MAXBLOCKSIZE;
+ ASSERT3U(newval, <=, spa_maxblocksize(dmu_objset_spa(zfsvfs->z_os)));
+ ASSERT3U(newval, >=, SPA_MINBLOCKSIZE);
+ ASSERT(ISP2(newval));
zfsvfs->z_max_blksz = newval;
zfsvfs->z_vfs->mnt_stat.f_iosize = newval;
*/
zfsvfs->z_vfs = NULL;
zfsvfs->z_parent = zfsvfs;
- zfsvfs->z_max_blksz = SPA_MAXBLOCKSIZE;
+ zfsvfs->z_max_blksz = SPA_OLD_MAXBLOCKSIZE;
zfsvfs->z_show_ctldir = ZFS_SNAPDIR_VISIBLE;
zfsvfs->z_os = os;
uint64_t new_blksz;
if (zp->z_blksz > max_blksz) {
+ /*
+ * File's blocksize is already larger than the
+ * "recordsize" property. Only let it grow to
+ * the next power of 2.
+ */
ASSERT(!ISP2(zp->z_blksz));
- new_blksz = MIN(end_size, SPA_MAXBLOCKSIZE);
+ new_blksz = MIN(end_size,
+ 1 << highbit64(zp->z_blksz));
} else {
new_blksz = MIN(end_size, max_blksz);
}
#endif /* _KERNEL */
#include <sys/dmu.h>
+#include <sys/dmu_objset.h>
#include <sys/refcount.h>
#include <sys/stat.h>
#include <sys/zap.h>
* We are growing the file past the current block size.
*/
if (zp->z_blksz > zp->z_zfsvfs->z_max_blksz) {
+ /*
+ * File's blocksize is already larger than the
+ * "recordsize" property. Only let it grow to
+ * the next power of 2.
+ */
ASSERT(!ISP2(zp->z_blksz));
- newblksz = MIN(end, SPA_MAXBLOCKSIZE);
+ newblksz = MIN(end, 1 << highbit64(zp->z_blksz));
} else {
newblksz = MIN(end, zp->z_zfsvfs->z_max_blksz);
}
sizeof (cksum)) || BP_IS_HOLE(&zilc->zc_next_blk)) {
error = SET_ERROR(ECKSUM);
} else {
+ ASSERT3U(len, <=, SPA_OLD_MAXBLOCKSIZE);
bcopy(lr, dst, len);
*end = (char *)dst + len;
*nbp = zilc->zc_next_blk;
(zilc->zc_nused > (size - sizeof (*zilc)))) {
error = SET_ERROR(ECKSUM);
} else {
+ ASSERT3U(zilc->zc_nused, <=,
+ SPA_OLD_MAXBLOCKSIZE);
bcopy(lr, dst, zilc->zc_nused);
*end = (char *)dst + zilc->zc_nused;
*nbp = zilc->zc_next_blk;
* If the log has been claimed, stop if we encounter a sequence
* number greater than the highest claimed sequence number.
*/
- lrbuf = zio_buf_alloc(SPA_MAXBLOCKSIZE);
+ lrbuf = zio_buf_alloc(SPA_OLD_MAXBLOCKSIZE);
zil_bp_tree_init(zilog);
for (blk = zh->zh_log; !BP_IS_HOLE(&blk); blk = next_blk) {
(max_blk_seq == claim_blk_seq && max_lr_seq == claim_lr_seq));
zil_bp_tree_fini(zilog);
- zio_buf_free(lrbuf, SPA_MAXBLOCKSIZE);
+ zio_buf_free(lrbuf, SPA_OLD_MAXBLOCKSIZE);
return (error);
}
*
* These must be a multiple of 4KB. Note only the amount used (again
* aligned to 4KB) actually gets written. However, we can't always just
- * allocate SPA_MAXBLOCKSIZE as the slog space could be exhausted.
+ * allocate SPA_OLD_MAXBLOCKSIZE as the slog space could be exhausted.
*/
uint64_t zil_block_buckets[] = {
4096, /* non TX_WRITE */
continue;
zil_blksz = zil_block_buckets[i];
if (zil_blksz == UINT64_MAX)
- zil_blksz = SPA_MAXBLOCKSIZE;
+ zil_blksz = SPA_OLD_MAXBLOCKSIZE;
zilog->zl_prev_blks[zilog->zl_prev_rotor] = zil_blksz;
for (i = 0; i < ZIL_PREV_BLKS; i++)
zil_blksz = MAX(zil_blksz, zilog->zl_prev_blks[i]);
/*
* For small buffers, we want a cache for each multiple of
- * SPA_MINBLOCKSIZE. For medium-size buffers, we want a cache
- * for each quarter-power of 2. For large buffers, we want
- * a cache for each multiple of PAGESIZE.
+ * SPA_MINBLOCKSIZE. For larger buffers, we want a cache
+ * for each quarter-power of 2.
*/
for (c = 0; c < SPA_MAXBLOCKSIZE >> SPA_MINBLOCKSHIFT; c++) {
size_t size = (c + 1) << SPA_MINBLOCKSHIFT;
#endif /* illumos */
if (size <= 4 * SPA_MINBLOCKSIZE) {
align = SPA_MINBLOCKSIZE;
- } else if (IS_P2ALIGNED(size, PAGESIZE)) {
- align = PAGESIZE;
} else if (IS_P2ALIGNED(size, p2 >> 2)) {
- align = p2 >> 2;
+ align = MIN(p2 >> 2, PAGESIZE);
}
if (align != 0) {
zvol_check_volblocksize(uint64_t volblocksize)
{
if (volblocksize < SPA_MINBLOCKSIZE ||
- volblocksize > SPA_MAXBLOCKSIZE ||
+ volblocksize > SPA_OLD_MAXBLOCKSIZE ||
!ISP2(volblocksize))
return (SET_ERROR(EDOM));
while (resid != 0) {
int error;
- uint64_t bytes = MIN(resid, SPA_MAXBLOCKSIZE);
+ uint64_t bytes = MIN(resid, SPA_OLD_MAXBLOCKSIZE);
tx = dmu_tx_create(os);
dmu_tx_hold_write(tx, ZVOL_OBJ, off, bytes);
(void) strcpy(dki.dki_dname, "zvol");
dki.dki_ctype = DKC_UNKNOWN;
dki.dki_unit = getminor(dev);
- dki.dki_maxtransfer = 1 << (SPA_MAXBLOCKSHIFT - zv->zv_min_bs);
+ dki.dki_maxtransfer =
+ 1 << (SPA_OLD_MAXBLOCKSHIFT - zv->zv_min_bs);
mutex_exit(&spa_namespace_lock);
if (ddi_copyout(&dki, (void *)arg, sizeof (dki), flag))
error = SET_ERROR(EFAULT);
zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 8, 1,
&vbs, tx);
error = error ? error : dmu_object_set_blocksize(
- os, ZVOL_OBJ, SPA_MAXBLOCKSIZE, 0, tx);
+ os, ZVOL_OBJ, SPA_OLD_MAXBLOCKSIZE, 0, tx);
if (version >= SPA_VERSION_DEDUP) {
error = error ? error : zap_update(os, ZVOL_ZAP_OBJ,
zfs_prop_to_name(ZFS_PROP_DEDUP), 8, 1,
&dedup, tx);
}
if (error == 0)
- zv->zv_volblocksize = SPA_MAXBLOCKSIZE;
+ zv->zv_volblocksize = SPA_OLD_MAXBLOCKSIZE;
}
dmu_tx_commit(tx);
ZPOOL_PROP_FREEING,
ZPOOL_PROP_FRAGMENTATION,
ZPOOL_PROP_LEAKED,
+ ZPOOL_PROP_MAXBLOCKSIZE,
ZPOOL_NUM_PROPS
} zpool_prop_t;
projects / people / julieng / freebsd.git / commitdiff