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zcommon: pre-iterate over sysfs instead of statting every feature

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If sufficient memory (<2K, realistically) is available, libzfs_init()
can be significantly shorted by iterating over the correct sysfs
directory before registrations, we can turn 168 stats into 15/18
syscalls (3 opens (6 if built in), 3 fstats, 6 getdentses, and 3
closes), a tenfoldish reduction; this is probably a bit faster, too.

The list is always optional, and registration functions (and one-off
users) can simply pass NULL, which will fall back to the previous
mechanism

Also, don't allocate in zfs_mod_supported_impl, and use use access()
instead of stat(), since existence is really what we care about

Also, fix pre-prop-checking compat in fallback for built-in ZFS

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #12089
This commit is contained in:
наб
2021-12-17 01:43:10 +01:00
committed by GitHub
parent 8fdc6f618c
commit eb51a9d747
7 changed files with 584 additions and 405 deletions
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module/zcommon/zfs_prop.c
+119 -96
View File
@@ -377,44 +377,47 @@ zfs_prop_init(void)
{ NULL }
};
struct zfs_mod_supported_features *sfeatures =
zfs_mod_list_supported(ZFS_SYSFS_DATASET_PROPERTIES);
/* inherit index properties */
zprop_register_index(ZFS_PROP_REDUNDANT_METADATA, "redundant_metadata",
ZFS_REDUNDANT_METADATA_ALL,
PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"all | most", "REDUND_MD",
redundant_metadata_table);
redundant_metadata_table, sfeatures);
zprop_register_index(ZFS_PROP_SYNC, "sync", ZFS_SYNC_STANDARD,
PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"standard | always | disabled", "SYNC",
sync_table);
sync_table, sfeatures);
zprop_register_index(ZFS_PROP_CHECKSUM, "checksum",
ZIO_CHECKSUM_DEFAULT, PROP_INHERIT, ZFS_TYPE_FILESYSTEM |
ZFS_TYPE_VOLUME,
"on | off | fletcher2 | fletcher4 | sha256 | sha512 | skein"
" | edonr",
"CHECKSUM", checksum_table);
"CHECKSUM", checksum_table, sfeatures);
zprop_register_index(ZFS_PROP_DEDUP, "dedup", ZIO_CHECKSUM_OFF,
PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"on | off | verify | sha256[,verify] | sha512[,verify] | "
"skein[,verify] | edonr,verify",
"DEDUP", dedup_table);
"DEDUP", dedup_table, sfeatures);
zprop_register_index(ZFS_PROP_COMPRESSION, "compression",
ZIO_COMPRESS_DEFAULT, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"on | off | lzjb | gzip | gzip-[1-9] | zle | lz4 | "
"zstd | zstd-[1-19] | "
"zstd-fast | zstd-fast-[1-10,20,30,40,50,60,70,80,90,100,500,1000]",
"COMPRESS", compress_table);
"COMPRESS", compress_table, sfeatures);
zprop_register_index(ZFS_PROP_SNAPDIR, "snapdir", ZFS_SNAPDIR_HIDDEN,
PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
"hidden | visible", "SNAPDIR", snapdir_table);
"hidden | visible", "SNAPDIR", snapdir_table, sfeatures);
zprop_register_index(ZFS_PROP_SNAPDEV, "snapdev", ZFS_SNAPDEV_HIDDEN,
PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"hidden | visible", "SNAPDEV", snapdev_table);
"hidden | visible", "SNAPDEV", snapdev_table, sfeatures);
zprop_register_index(ZFS_PROP_ACLMODE, "aclmode", ZFS_ACL_DISCARD,
PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
"discard | groupmask | passthrough | restricted", "ACLMODE",
acl_mode_table);
acl_mode_table, sfeatures);
zprop_register_index(ZFS_PROP_ACLTYPE, "acltype",
#ifdef __linux__
/* Linux doesn't natively support ZFS's NFSv4-style ACLs. */
@@ -423,270 +426,288 @@ zfs_prop_init(void)
ZFS_ACLTYPE_NFSV4,
#endif
PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT,
"off | nfsv4 | posix", "ACLTYPE", acltype_table);
"off | nfsv4 | posix", "ACLTYPE", acltype_table, sfeatures);
zprop_register_index(ZFS_PROP_ACLINHERIT, "aclinherit",
ZFS_ACL_RESTRICTED, PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
"discard | noallow | restricted | passthrough | passthrough-x",
"ACLINHERIT", acl_inherit_table);
"ACLINHERIT", acl_inherit_table, sfeatures);
zprop_register_index(ZFS_PROP_COPIES, "copies", 1, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"1 | 2 | 3", "COPIES", copies_table);
"1 | 2 | 3", "COPIES", copies_table, sfeatures);
zprop_register_index(ZFS_PROP_PRIMARYCACHE, "primarycache",
ZFS_CACHE_ALL, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME,
"all | none | metadata", "PRIMARYCACHE", cache_table);
"all | none | metadata", "PRIMARYCACHE", cache_table, sfeatures);
zprop_register_index(ZFS_PROP_SECONDARYCACHE, "secondarycache",
ZFS_CACHE_ALL, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME,
"all | none | metadata", "SECONDARYCACHE", cache_table);
"all | none | metadata", "SECONDARYCACHE", cache_table, sfeatures);
zprop_register_index(ZFS_PROP_LOGBIAS, "logbias", ZFS_LOGBIAS_LATENCY,
PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"latency | throughput", "LOGBIAS", logbias_table);
"latency | throughput", "LOGBIAS", logbias_table, sfeatures);
zprop_register_index(ZFS_PROP_XATTR, "xattr", ZFS_XATTR_DIR,
PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT,
"on | off | dir | sa", "XATTR", xattr_table);
"on | off | dir | sa", "XATTR", xattr_table, sfeatures);
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);
"legacy | auto | 1k | 2k | 4k | 8k | 16k", "DNSIZE", dnsize_table,
sfeatures);
zprop_register_index(ZFS_PROP_VOLMODE, "volmode",
ZFS_VOLMODE_DEFAULT, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"default | full | geom | dev | none", "VOLMODE", volmode_table);
"default | full | geom | dev | none", "VOLMODE", volmode_table,
sfeatures);
/* inherit index (boolean) properties */
zprop_register_index(ZFS_PROP_ATIME, "atime", 1, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM, "on | off", "ATIME", boolean_table);
ZFS_TYPE_FILESYSTEM, "on | off", "ATIME", boolean_table, sfeatures);
zprop_register_index(ZFS_PROP_RELATIME, "relatime", 0, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM, "on | off", "RELATIME", boolean_table);
ZFS_TYPE_FILESYSTEM, "on | off", "RELATIME", boolean_table,
sfeatures);
zprop_register_index(ZFS_PROP_DEVICES, "devices", 1, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "DEVICES",
boolean_table);
boolean_table, sfeatures);
zprop_register_index(ZFS_PROP_EXEC, "exec", 1, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "EXEC",
boolean_table);
boolean_table, sfeatures);
zprop_register_index(ZFS_PROP_SETUID, "setuid", 1, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "SETUID",
boolean_table);
boolean_table, sfeatures);
zprop_register_index(ZFS_PROP_READONLY, "readonly", 0, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "on | off", "RDONLY",
boolean_table);
boolean_table, sfeatures);
#ifdef __FreeBSD__
zprop_register_index(ZFS_PROP_ZONED, "jailed", 0, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM, "on | off", "JAILED", boolean_table);
ZFS_TYPE_FILESYSTEM, "on | off", "JAILED", boolean_table,
sfeatures);
#else
zprop_register_index(ZFS_PROP_ZONED, "zoned", 0, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM, "on | off", "ZONED", boolean_table);
ZFS_TYPE_FILESYSTEM, "on | off", "ZONED", boolean_table, sfeatures);
#endif
zprop_register_index(ZFS_PROP_VSCAN, "vscan", 0, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM, "on | off", "VSCAN", boolean_table);
ZFS_TYPE_FILESYSTEM, "on | off", "VSCAN", boolean_table, sfeatures);
zprop_register_index(ZFS_PROP_NBMAND, "nbmand", 0, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "NBMAND",
boolean_table);
boolean_table, sfeatures);
zprop_register_index(ZFS_PROP_OVERLAY, "overlay", 1, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM, "on | off", "OVERLAY", boolean_table);
ZFS_TYPE_FILESYSTEM, "on | off", "OVERLAY", boolean_table,
sfeatures);
/* default index properties */
zprop_register_index(ZFS_PROP_VERSION, "version", 0, PROP_DEFAULT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT,
"1 | 2 | 3 | 4 | 5 | current", "VERSION", version_table);
"1 | 2 | 3 | 4 | 5 | current", "VERSION", version_table, sfeatures);
zprop_register_index(ZFS_PROP_CANMOUNT, "canmount", ZFS_CANMOUNT_ON,
PROP_DEFAULT, ZFS_TYPE_FILESYSTEM, "on | off | noauto",
"CANMOUNT", canmount_table);
"CANMOUNT", canmount_table, sfeatures);
/* readonly index properties */
zprop_register_index(ZFS_PROP_MOUNTED, "mounted", 0, PROP_READONLY,
ZFS_TYPE_FILESYSTEM, "yes | no", "MOUNTED", boolean_table);
ZFS_TYPE_FILESYSTEM, "yes | no", "MOUNTED", boolean_table,
sfeatures);
zprop_register_index(ZFS_PROP_DEFER_DESTROY, "defer_destroy", 0,
PROP_READONLY, ZFS_TYPE_SNAPSHOT, "yes | no", "DEFER_DESTROY",
boolean_table);
boolean_table, sfeatures);
zprop_register_index(ZFS_PROP_KEYSTATUS, "keystatus",
ZFS_KEYSTATUS_NONE, PROP_READONLY, ZFS_TYPE_DATASET,
"none | unavailable | available",
"KEYSTATUS", keystatus_table);
"KEYSTATUS", keystatus_table, sfeatures);
/* set once index properties */
zprop_register_index(ZFS_PROP_NORMALIZE, "normalization", 0,
PROP_ONETIME, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT,
"none | formC | formD | formKC | formKD", "NORMALIZATION",
normalize_table);
normalize_table, sfeatures);
zprop_register_index(ZFS_PROP_CASE, "casesensitivity",
ZFS_CASE_SENSITIVE, PROP_ONETIME, ZFS_TYPE_FILESYSTEM |
ZFS_TYPE_SNAPSHOT,
"sensitive | insensitive | mixed", "CASE", case_table);
"sensitive | insensitive | mixed", "CASE", case_table, sfeatures);
zprop_register_index(ZFS_PROP_KEYFORMAT, "keyformat",
ZFS_KEYFORMAT_NONE, PROP_ONETIME_DEFAULT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"none | raw | hex | passphrase", "KEYFORMAT", keyformat_table);
"none | raw | hex | passphrase", "KEYFORMAT", keyformat_table,
sfeatures);
zprop_register_index(ZFS_PROP_ENCRYPTION, "encryption",
ZIO_CRYPT_DEFAULT, PROP_ONETIME, ZFS_TYPE_DATASET,
"on | off | aes-128-ccm | aes-192-ccm | aes-256-ccm | "
"aes-128-gcm | aes-192-gcm | aes-256-gcm", "ENCRYPTION",
crypto_table);
crypto_table, sfeatures);
/* set once index (boolean) properties */
zprop_register_index(ZFS_PROP_UTF8ONLY, "utf8only", 0, PROP_ONETIME,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT,
"on | off", "UTF8ONLY", boolean_table);
"on | off", "UTF8ONLY", boolean_table, sfeatures);
/* string properties */
zprop_register_string(ZFS_PROP_ORIGIN, "origin", NULL, PROP_READONLY,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<snapshot>", "ORIGIN");
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<snapshot>", "ORIGIN",
sfeatures);
zprop_register_string(ZFS_PROP_CLONES, "clones", NULL, PROP_READONLY,
ZFS_TYPE_SNAPSHOT, "<dataset>[,...]", "CLONES");
ZFS_TYPE_SNAPSHOT, "<dataset>[,...]", "CLONES", sfeatures);
zprop_register_string(ZFS_PROP_MOUNTPOINT, "mountpoint", "/",
PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "<path> | legacy | none",
"MOUNTPOINT");
"MOUNTPOINT", sfeatures);
zprop_register_string(ZFS_PROP_SHARENFS, "sharenfs", "off",
PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "on | off | NFS share options",
"SHARENFS");
"SHARENFS", sfeatures);
zprop_register_string(ZFS_PROP_TYPE, "type", NULL, PROP_READONLY,
ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK,
"filesystem | volume | snapshot | bookmark", "TYPE");
"filesystem | volume | snapshot | bookmark", "TYPE", sfeatures);
zprop_register_string(ZFS_PROP_SHARESMB, "sharesmb", "off",
PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
"on | off | SMB share options", "SHARESMB");
"on | off | SMB share options", "SHARESMB", sfeatures);
zprop_register_string(ZFS_PROP_MLSLABEL, "mlslabel",
ZFS_MLSLABEL_DEFAULT, PROP_INHERIT, ZFS_TYPE_DATASET,
"<sensitivity label>", "MLSLABEL");
"<sensitivity label>", "MLSLABEL", sfeatures);
zprop_register_string(ZFS_PROP_SELINUX_CONTEXT, "context",
"none", PROP_DEFAULT, ZFS_TYPE_DATASET, "<selinux context>",
"CONTEXT");
"CONTEXT", sfeatures);
zprop_register_string(ZFS_PROP_SELINUX_FSCONTEXT, "fscontext",
"none", PROP_DEFAULT, ZFS_TYPE_DATASET, "<selinux fscontext>",
"FSCONTEXT");
"FSCONTEXT", sfeatures);
zprop_register_string(ZFS_PROP_SELINUX_DEFCONTEXT, "defcontext",
"none", PROP_DEFAULT, ZFS_TYPE_DATASET, "<selinux defcontext>",
"DEFCONTEXT");
"DEFCONTEXT", sfeatures);
zprop_register_string(ZFS_PROP_SELINUX_ROOTCONTEXT, "rootcontext",
"none", PROP_DEFAULT, ZFS_TYPE_DATASET, "<selinux rootcontext>",
"ROOTCONTEXT");
"ROOTCONTEXT", sfeatures);
zprop_register_string(ZFS_PROP_RECEIVE_RESUME_TOKEN,
"receive_resume_token",
NULL, PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"<string token>", "RESUMETOK");
"<string token>", "RESUMETOK", sfeatures);
zprop_register_string(ZFS_PROP_ENCRYPTION_ROOT, "encryptionroot", NULL,
PROP_READONLY, ZFS_TYPE_DATASET, "<filesystem | volume>",
"ENCROOT");
"ENCROOT", sfeatures);
zprop_register_string(ZFS_PROP_KEYLOCATION, "keylocation",
"none", PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"prompt | <file URI> | <https URL> | <http URL>", "KEYLOCATION");
"prompt | <file URI> | <https URL> | <http URL>", "KEYLOCATION",
sfeatures);
zprop_register_string(ZFS_PROP_REDACT_SNAPS,
"redact_snaps", NULL, PROP_READONLY,
ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "<snapshot>[,...]",
"RSNAPS");
"RSNAPS", sfeatures);
/* readonly number properties */
zprop_register_number(ZFS_PROP_USED, "used", 0, PROP_READONLY,
ZFS_TYPE_DATASET, "<size>", "USED");
ZFS_TYPE_DATASET, "<size>", "USED", sfeatures);
zprop_register_number(ZFS_PROP_AVAILABLE, "available", 0, PROP_READONLY,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "AVAIL");
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "AVAIL",
sfeatures);
zprop_register_number(ZFS_PROP_REFERENCED, "referenced", 0,
PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "<size>",
"REFER");
"REFER", sfeatures);
zprop_register_number(ZFS_PROP_COMPRESSRATIO, "compressratio", 0,
PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK,
"<1.00x or higher if compressed>", "RATIO");
"<1.00x or higher if compressed>", "RATIO", sfeatures);
zprop_register_number(ZFS_PROP_REFRATIO, "refcompressratio", 0,
PROP_READONLY, ZFS_TYPE_DATASET,
"<1.00x or higher if compressed>", "REFRATIO");
"<1.00x or higher if compressed>", "REFRATIO", sfeatures);
zprop_register_number(ZFS_PROP_VOLBLOCKSIZE, "volblocksize",
ZVOL_DEFAULT_BLOCKSIZE, PROP_ONETIME,
ZFS_TYPE_VOLUME, "512 to 128k, power of 2", "VOLBLOCK");
ZFS_TYPE_VOLUME, "512 to 128k, power of 2", "VOLBLOCK", sfeatures);
zprop_register_number(ZFS_PROP_USEDSNAP, "usedbysnapshots", 0,
PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>",
"USEDSNAP");
"USEDSNAP", sfeatures);
zprop_register_number(ZFS_PROP_USEDDS, "usedbydataset", 0,
PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>",
"USEDDS");
"USEDDS", sfeatures);
zprop_register_number(ZFS_PROP_USEDCHILD, "usedbychildren", 0,
PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>",
"USEDCHILD");
"USEDCHILD", sfeatures);
zprop_register_number(ZFS_PROP_USEDREFRESERV, "usedbyrefreservation", 0,
PROP_READONLY,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDREFRESERV");
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDREFRESERV",
sfeatures);
zprop_register_number(ZFS_PROP_USERREFS, "userrefs", 0, PROP_READONLY,
ZFS_TYPE_SNAPSHOT, "<count>", "USERREFS");
ZFS_TYPE_SNAPSHOT, "<count>", "USERREFS", sfeatures);
zprop_register_number(ZFS_PROP_WRITTEN, "written", 0, PROP_READONLY,
ZFS_TYPE_DATASET, "<size>", "WRITTEN");
ZFS_TYPE_DATASET, "<size>", "WRITTEN", sfeatures);
zprop_register_number(ZFS_PROP_LOGICALUSED, "logicalused", 0,
PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>",
"LUSED");
"LUSED", sfeatures);
zprop_register_number(ZFS_PROP_LOGICALREFERENCED, "logicalreferenced",
0, PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "<size>",
"LREFER");
"LREFER", sfeatures);
zprop_register_number(ZFS_PROP_FILESYSTEM_COUNT, "filesystem_count",
UINT64_MAX, PROP_READONLY, ZFS_TYPE_FILESYSTEM,
"<count>", "FSCOUNT");
"<count>", "FSCOUNT", sfeatures);
zprop_register_number(ZFS_PROP_SNAPSHOT_COUNT, "snapshot_count",
UINT64_MAX, PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"<count>", "SSCOUNT");
"<count>", "SSCOUNT", sfeatures);
zprop_register_number(ZFS_PROP_GUID, "guid", 0, PROP_READONLY,
ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "<uint64>", "GUID");
ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "<uint64>", "GUID",
sfeatures);
zprop_register_number(ZFS_PROP_CREATETXG, "createtxg", 0, PROP_READONLY,
ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "<uint64>", "CREATETXG");
ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "<uint64>", "CREATETXG",
sfeatures);
zprop_register_number(ZFS_PROP_PBKDF2_ITERS, "pbkdf2iters",
0, PROP_ONETIME_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"<iters>", "PBKDF2ITERS");
"<iters>", "PBKDF2ITERS", sfeatures);
zprop_register_number(ZFS_PROP_OBJSETID, "objsetid", 0,
PROP_READONLY, ZFS_TYPE_DATASET, "<uint64>", "OBJSETID");
PROP_READONLY, ZFS_TYPE_DATASET, "<uint64>", "OBJSETID", sfeatures);
/* default number properties */
zprop_register_number(ZFS_PROP_QUOTA, "quota", 0, PROP_DEFAULT,
ZFS_TYPE_FILESYSTEM, "<size> | none", "QUOTA");
ZFS_TYPE_FILESYSTEM, "<size> | none", "QUOTA", sfeatures);
zprop_register_number(ZFS_PROP_RESERVATION, "reservation", 0,
PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"<size> | none", "RESERV");
"<size> | none", "RESERV", sfeatures);
zprop_register_number(ZFS_PROP_VOLSIZE, "volsize", 0, PROP_DEFAULT,
ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME, "<size>", "VOLSIZE");
ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME, "<size>", "VOLSIZE",
sfeatures);
zprop_register_number(ZFS_PROP_REFQUOTA, "refquota", 0, PROP_DEFAULT,
ZFS_TYPE_FILESYSTEM, "<size> | none", "REFQUOTA");
ZFS_TYPE_FILESYSTEM, "<size> | none", "REFQUOTA", sfeatures);
zprop_register_number(ZFS_PROP_REFRESERVATION, "refreservation", 0,
PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"<size> | none", "REFRESERV");
"<size> | none", "REFRESERV", sfeatures);
zprop_register_number(ZFS_PROP_FILESYSTEM_LIMIT, "filesystem_limit",
UINT64_MAX, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM,
"<count> | none", "FSLIMIT");
"<count> | none", "FSLIMIT", sfeatures);
zprop_register_number(ZFS_PROP_SNAPSHOT_LIMIT, "snapshot_limit",
UINT64_MAX, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"<count> | none", "SSLIMIT");
"<count> | none", "SSLIMIT", sfeatures);
/* inherit number properties */
zprop_register_number(ZFS_PROP_RECORDSIZE, "recordsize",
SPA_OLD_MAXBLOCKSIZE, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM, "512 to 1M, power of 2", "RECSIZE");
ZFS_TYPE_FILESYSTEM, "512 to 1M, power of 2", "RECSIZE", sfeatures);
zprop_register_number(ZFS_PROP_SPECIAL_SMALL_BLOCKS,
"special_small_blocks", 0, PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
"zero or 512 to 1M, power of 2", "SPECIAL_SMALL_BLOCKS");
"zero or 512 to 1M, power of 2", "SPECIAL_SMALL_BLOCKS", sfeatures);
/* hidden properties */
zprop_register_hidden(ZFS_PROP_NUMCLONES, "numclones", PROP_TYPE_NUMBER,
PROP_READONLY, ZFS_TYPE_SNAPSHOT, "NUMCLONES");
PROP_READONLY, ZFS_TYPE_SNAPSHOT, "NUMCLONES", sfeatures);
zprop_register_hidden(ZFS_PROP_NAME, "name", PROP_TYPE_STRING,
PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "NAME");
PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "NAME",
sfeatures);
zprop_register_hidden(ZFS_PROP_ISCSIOPTIONS, "iscsioptions",
PROP_TYPE_STRING, PROP_INHERIT, ZFS_TYPE_VOLUME, "ISCSIOPTIONS");
PROP_TYPE_STRING, PROP_INHERIT, ZFS_TYPE_VOLUME, "ISCSIOPTIONS",
sfeatures);
zprop_register_hidden(ZFS_PROP_STMF_SHAREINFO, "stmf_sbd_lu",
PROP_TYPE_STRING, PROP_INHERIT, ZFS_TYPE_VOLUME,
"STMF_SBD_LU");
"STMF_SBD_LU", sfeatures);
zprop_register_hidden(ZFS_PROP_USERACCOUNTING, "useraccounting",
PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_DATASET,
"USERACCOUNTING");
"USERACCOUNTING", sfeatures);
zprop_register_hidden(ZFS_PROP_UNIQUE, "unique", PROP_TYPE_NUMBER,
PROP_READONLY, ZFS_TYPE_DATASET, "UNIQUE");
PROP_READONLY, ZFS_TYPE_DATASET, "UNIQUE", sfeatures);
zprop_register_hidden(ZFS_PROP_INCONSISTENT, "inconsistent",
PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_DATASET, "INCONSISTENT");
PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_DATASET, "INCONSISTENT",
sfeatures);
zprop_register_hidden(ZFS_PROP_IVSET_GUID, "ivsetguid",
PROP_TYPE_NUMBER, PROP_READONLY,
ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "IVSETGUID");
ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "IVSETGUID", sfeatures);
zprop_register_hidden(ZFS_PROP_PREV_SNAP, "prevsnap", PROP_TYPE_STRING,
PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "PREVSNAP");
PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "PREVSNAP",
sfeatures);
zprop_register_hidden(ZFS_PROP_PBKDF2_SALT, "pbkdf2salt",
PROP_TYPE_NUMBER, PROP_ONETIME_DEFAULT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "PBKDF2SALT");
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "PBKDF2SALT", sfeatures);
zprop_register_hidden(ZFS_PROP_KEY_GUID, "keyguid", PROP_TYPE_NUMBER,
PROP_READONLY, ZFS_TYPE_DATASET, "KEYGUID");
PROP_READONLY, ZFS_TYPE_DATASET, "KEYGUID", sfeatures);
zprop_register_hidden(ZFS_PROP_REDACTED, "redacted", PROP_TYPE_NUMBER,
PROP_READONLY, ZFS_TYPE_DATASET, "REDACTED");
PROP_READONLY, ZFS_TYPE_DATASET, "REDACTED", sfeatures);
/*
* Properties that are obsolete and not used. These are retained so
@@ -694,12 +715,14 @@ zfs_prop_init(void)
* have NULL pointers in the zfs_prop_table[].
*/
zprop_register_hidden(ZFS_PROP_REMAPTXG, "remaptxg", PROP_TYPE_NUMBER,
PROP_READONLY, ZFS_TYPE_DATASET, "REMAPTXG");
PROP_READONLY, ZFS_TYPE_DATASET, "REMAPTXG", sfeatures);
/* oddball properties */
zprop_register_impl(ZFS_PROP_CREATION, "creation", PROP_TYPE_NUMBER, 0,
NULL, PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK,
"<date>", "CREATION", B_FALSE, B_TRUE, NULL);
"<date>", "CREATION", B_FALSE, B_TRUE, NULL, sfeatures);
zfs_mod_list_supported_free(sfeatures);
}
boolean_t