X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libbcachefs%2Fopts.h;h=719693b333da231577d0fe09c38809954cbdfca2;hb=8642d4ae10f167a2eb850403f6d2b60757242b31;hp=f476033e707f3b2cf74345fd53f8ccfb593c5a58;hpb=17e2f2775be6e10b966cd958bc0461aab662571a;p=bcachefs-tools-debian diff --git a/libbcachefs/opts.h b/libbcachefs/opts.h index f476033..719693b 100644 --- a/libbcachefs/opts.h +++ b/libbcachefs/opts.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _BCACHEFS_OPTS_H #define _BCACHEFS_OPTS_H @@ -7,14 +8,27 @@ #include #include "bcachefs_format.h" +extern const char * const bch2_metadata_versions[]; extern const char * const bch2_error_actions[]; +extern const char * const bch2_sb_features[]; +extern const char * const bch2_sb_compat[]; +extern const char * const bch2_btree_ids[]; extern const char * const bch2_csum_types[]; +extern const char * const bch2_csum_opts[]; extern const char * const bch2_compression_types[]; +extern const char * const bch2_compression_opts[]; extern const char * const bch2_str_hash_types[]; +extern const char * const bch2_str_hash_opts[]; extern const char * const bch2_data_types[]; -extern const char * const bch2_cache_replacement_policies[]; -extern const char * const bch2_cache_modes[]; -extern const char * const bch2_dev_state[]; +extern const char * const bch2_member_states[]; +extern const char * const bch2_jset_entry_types[]; +extern const char * const bch2_fs_usage_types[]; +extern const char * const bch2_d_types[]; + +static inline const char *bch2_d_type_str(unsigned d_type) +{ + return (d_type < BCH_DT_MAX ? bch2_d_types[d_type] : NULL) ?: "(bad d_type)"; +} /* * Mount options; we also store defaults in the superblock. @@ -29,13 +43,21 @@ extern const char * const bch2_dev_state[]; */ /* dummy option, for options that aren't stored in the superblock */ -LE64_BITMASK(NO_SB_OPT, struct bch_sb, flags[0], 0, 0); - -enum opt_mode { - OPT_INTERNAL, - OPT_FORMAT, - OPT_MOUNT, - OPT_RUNTIME, +u64 BCH2_NO_SB_OPT(const struct bch_sb *); +void SET_BCH2_NO_SB_OPT(struct bch_sb *, u64); + +/* When can be set: */ +enum opt_flags { + OPT_FS = (1 << 0), /* Filesystem option */ + OPT_DEVICE = (1 << 1), /* Device option */ + OPT_INODE = (1 << 2), /* Inode option */ + OPT_FORMAT = (1 << 3), /* May be specified at format time */ + OPT_MOUNT = (1 << 4), /* May be specified at mount time */ + OPT_RUNTIME = (1 << 5), /* May be specified at runtime */ + OPT_HUMAN_READABLE = (1 << 6), + OPT_MUST_BE_POW_2 = (1 << 7), /* Must be power of 2 */ + OPT_SB_FIELD_SECTORS = (1 << 8),/* Superblock field is >> 9 of actual value */ + OPT_SB_FIELD_ILOG2 = (1 << 9), /* Superblock field is ilog2 of actual value */ }; enum opt_type { @@ -46,7 +68,7 @@ enum opt_type { }; /** - * BCH_OPT(name, type, in mem type, mode, sb_opt) + * x(name, shortopt, type, in mem type, mode, sb_opt) * * @name - name of mount option, sysfs attribute, and struct bch_opts * member @@ -64,136 +86,376 @@ enum opt_type { * - helptext */ +#ifdef __KERNEL__ +#define RATELIMIT_ERRORS_DEFAULT true +#else +#define RATELIMIT_ERRORS_DEFAULT false +#endif + +#ifdef CONFIG_BCACHEFS_DEBUG +#define BCACHEFS_VERBOSE_DEFAULT true +#else +#define BCACHEFS_VERBOSE_DEFAULT false +#endif + #define BCH_OPTS() \ - BCH_OPT(block_size, u16, OPT_FORMAT, \ - OPT_UINT(1, 128), \ - BCH_SB_BLOCK_SIZE, 8) \ - BCH_OPT(btree_node_size, u16, OPT_FORMAT, \ - OPT_UINT(1, 128), \ - BCH_SB_BTREE_NODE_SIZE, 512) \ - BCH_OPT(errors, u8, OPT_RUNTIME, \ - OPT_STR(bch2_error_actions), \ - BCH_SB_ERROR_ACTION, BCH_ON_ERROR_RO) \ - BCH_OPT(metadata_replicas, u8, OPT_RUNTIME, \ - OPT_UINT(1, BCH_REPLICAS_MAX), \ - BCH_SB_META_REPLICAS_WANT, 1) \ - BCH_OPT(data_replicas, u8, OPT_RUNTIME, \ - OPT_UINT(1, BCH_REPLICAS_MAX), \ - BCH_SB_DATA_REPLICAS_WANT, 1) \ - BCH_OPT(metadata_replicas_required, u8, OPT_MOUNT, \ - OPT_UINT(1, BCH_REPLICAS_MAX), \ - BCH_SB_META_REPLICAS_REQ, 1) \ - BCH_OPT(data_replicas_required, u8, OPT_MOUNT, \ - OPT_UINT(1, BCH_REPLICAS_MAX), \ - BCH_SB_DATA_REPLICAS_REQ, 1) \ - BCH_OPT(metadata_checksum, u8, OPT_RUNTIME, \ - OPT_STR(bch2_csum_types), \ - BCH_SB_META_CSUM_TYPE, BCH_CSUM_OPT_CRC32C) \ - BCH_OPT(data_checksum, u8, OPT_RUNTIME, \ - OPT_STR(bch2_csum_types), \ - BCH_SB_DATA_CSUM_TYPE, BCH_CSUM_OPT_CRC32C) \ - BCH_OPT(compression, u8, OPT_RUNTIME, \ - OPT_STR(bch2_compression_types), \ - BCH_SB_COMPRESSION_TYPE, BCH_COMPRESSION_OPT_NONE)\ - BCH_OPT(background_compression, u8, OPT_RUNTIME, \ - OPT_STR(bch2_compression_types), \ - BCH_SB_BACKGROUND_COMPRESSION_TYPE,BCH_COMPRESSION_OPT_NONE)\ - BCH_OPT(str_hash, u8, OPT_RUNTIME, \ - OPT_STR(bch2_str_hash_types), \ - BCH_SB_STR_HASH_TYPE, BCH_STR_HASH_SIPHASH) \ - BCH_OPT(foreground_target, u16, OPT_RUNTIME, \ - OPT_FN(bch2_opt_target), \ - BCH_SB_FOREGROUND_TARGET, 0) \ - BCH_OPT(background_target, u16, OPT_RUNTIME, \ - OPT_FN(bch2_opt_target), \ - BCH_SB_BACKGROUND_TARGET, 0) \ - BCH_OPT(promote_target, u16, OPT_RUNTIME, \ - OPT_FN(bch2_opt_target), \ - BCH_SB_PROMOTE_TARGET, 0) \ - BCH_OPT(inodes_32bit, u8, OPT_RUNTIME, \ - OPT_BOOL(), \ - BCH_SB_INODE_32BIT, false) \ - BCH_OPT(gc_reserve_percent, u8, OPT_MOUNT, \ - OPT_UINT(5, 21), \ - BCH_SB_GC_RESERVE, 8) \ - BCH_OPT(root_reserve_percent, u8, OPT_MOUNT, \ - OPT_UINT(0, 100), \ - BCH_SB_ROOT_RESERVE, 0) \ - BCH_OPT(wide_macs, u8, OPT_RUNTIME, \ - OPT_BOOL(), \ - BCH_SB_128_BIT_MACS, false) \ - BCH_OPT(acl, u8, OPT_MOUNT, \ - OPT_BOOL(), \ - BCH_SB_POSIX_ACL, true) \ - BCH_OPT(usrquota, u8, OPT_MOUNT, \ - OPT_BOOL(), \ - BCH_SB_USRQUOTA, false) \ - BCH_OPT(grpquota, u8, OPT_MOUNT, \ - OPT_BOOL(), \ - BCH_SB_GRPQUOTA, false) \ - BCH_OPT(prjquota, u8, OPT_MOUNT, \ - OPT_BOOL(), \ - BCH_SB_PRJQUOTA, false) \ - BCH_OPT(degraded, u8, OPT_MOUNT, \ - OPT_BOOL(), \ - NO_SB_OPT, false) \ - BCH_OPT(discard, u8, OPT_MOUNT, \ - OPT_BOOL(), \ - NO_SB_OPT, false) \ - BCH_OPT(verbose_recovery, u8, OPT_MOUNT, \ - OPT_BOOL(), \ - NO_SB_OPT, false) \ - BCH_OPT(verbose_init, u8, OPT_MOUNT, \ - OPT_BOOL(), \ - NO_SB_OPT, false) \ - BCH_OPT(journal_flush_disabled, u8, OPT_RUNTIME, \ - OPT_BOOL(), \ - NO_SB_OPT, false) \ - BCH_OPT(nofsck, u8, OPT_MOUNT, \ - OPT_BOOL(), \ - NO_SB_OPT, false) \ - BCH_OPT(fix_errors, u8, OPT_MOUNT, \ - OPT_BOOL(), \ - NO_SB_OPT, false) \ - BCH_OPT(nochanges, u8, OPT_MOUNT, \ - OPT_BOOL(), \ - NO_SB_OPT, false) \ - BCH_OPT(noreplay, u8, OPT_MOUNT, \ - OPT_BOOL(), \ - NO_SB_OPT, false) \ - BCH_OPT(norecovery, u8, OPT_MOUNT, \ - OPT_BOOL(), \ - NO_SB_OPT, false) \ - BCH_OPT(noexcl, u8, OPT_MOUNT, \ - OPT_BOOL(), \ - NO_SB_OPT, false) \ - BCH_OPT(sb, u64, OPT_MOUNT, \ - OPT_UINT(0, S64_MAX), \ - NO_SB_OPT, BCH_SB_SECTOR) \ - BCH_OPT(read_only, u8, OPT_INTERNAL, \ - OPT_BOOL(), \ - NO_SB_OPT, false) \ - BCH_OPT(nostart, u8, OPT_INTERNAL, \ - OPT_BOOL(), \ - NO_SB_OPT, false) + x(block_size, u16, \ + OPT_FS|OPT_FORMAT| \ + OPT_HUMAN_READABLE|OPT_MUST_BE_POW_2|OPT_SB_FIELD_SECTORS, \ + OPT_UINT(512, 1U << 16), \ + BCH_SB_BLOCK_SIZE, 8, \ + "size", NULL) \ + x(btree_node_size, u32, \ + OPT_FS|OPT_FORMAT| \ + OPT_HUMAN_READABLE|OPT_MUST_BE_POW_2|OPT_SB_FIELD_SECTORS, \ + OPT_UINT(512, 1U << 20), \ + BCH_SB_BTREE_NODE_SIZE, 512, \ + "size", "Btree node size, default 256k") \ + x(errors, u8, \ + OPT_FS|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME, \ + OPT_STR(bch2_error_actions), \ + BCH_SB_ERROR_ACTION, BCH_ON_ERROR_ro, \ + NULL, "Action to take on filesystem error") \ + x(metadata_replicas, u8, \ + OPT_FS|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME, \ + OPT_UINT(1, BCH_REPLICAS_MAX), \ + BCH_SB_META_REPLICAS_WANT, 1, \ + "#", "Number of metadata replicas") \ + x(data_replicas, u8, \ + OPT_FS|OPT_INODE|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME, \ + OPT_UINT(1, BCH_REPLICAS_MAX), \ + BCH_SB_DATA_REPLICAS_WANT, 1, \ + "#", "Number of data replicas") \ + x(metadata_replicas_required, u8, \ + OPT_FS|OPT_FORMAT|OPT_MOUNT, \ + OPT_UINT(1, BCH_REPLICAS_MAX), \ + BCH_SB_META_REPLICAS_REQ, 1, \ + "#", NULL) \ + x(data_replicas_required, u8, \ + OPT_FS|OPT_FORMAT|OPT_MOUNT, \ + OPT_UINT(1, BCH_REPLICAS_MAX), \ + BCH_SB_DATA_REPLICAS_REQ, 1, \ + "#", NULL) \ + x(encoded_extent_max, u32, \ + OPT_FS|OPT_FORMAT| \ + OPT_HUMAN_READABLE|OPT_MUST_BE_POW_2|OPT_SB_FIELD_SECTORS|OPT_SB_FIELD_ILOG2,\ + OPT_UINT(4096, 2U << 20), \ + BCH_SB_ENCODED_EXTENT_MAX_BITS, 64 << 10, \ + "size", "Maximum size of checksummed/compressed extents")\ + x(metadata_checksum, u8, \ + OPT_FS|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME, \ + OPT_STR(bch2_csum_opts), \ + BCH_SB_META_CSUM_TYPE, BCH_CSUM_OPT_crc32c, \ + NULL, NULL) \ + x(data_checksum, u8, \ + OPT_FS|OPT_INODE|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME, \ + OPT_STR(bch2_csum_opts), \ + BCH_SB_DATA_CSUM_TYPE, BCH_CSUM_OPT_crc32c, \ + NULL, NULL) \ + x(compression, u8, \ + OPT_FS|OPT_INODE|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME, \ + OPT_STR(bch2_compression_opts), \ + BCH_SB_COMPRESSION_TYPE, BCH_COMPRESSION_OPT_none, \ + NULL, NULL) \ + x(background_compression, u8, \ + OPT_FS|OPT_INODE|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME, \ + OPT_STR(bch2_compression_opts), \ + BCH_SB_BACKGROUND_COMPRESSION_TYPE,BCH_COMPRESSION_OPT_none, \ + NULL, NULL) \ + x(str_hash, u8, \ + OPT_FS|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME, \ + OPT_STR(bch2_str_hash_opts), \ + BCH_SB_STR_HASH_TYPE, BCH_STR_HASH_OPT_siphash, \ + NULL, "Hash function for directory entries and xattrs")\ + x(metadata_target, u16, \ + OPT_FS|OPT_INODE|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME, \ + OPT_FN(bch2_opt_target), \ + BCH_SB_METADATA_TARGET, 0, \ + "(target)", "Device or label for metadata writes") \ + x(foreground_target, u16, \ + OPT_FS|OPT_INODE|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME, \ + OPT_FN(bch2_opt_target), \ + BCH_SB_FOREGROUND_TARGET, 0, \ + "(target)", "Device or label for foreground writes") \ + x(background_target, u16, \ + OPT_FS|OPT_INODE|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME, \ + OPT_FN(bch2_opt_target), \ + BCH_SB_BACKGROUND_TARGET, 0, \ + "(target)", "Device or label to move data to in the background")\ + x(promote_target, u16, \ + OPT_FS|OPT_INODE|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME, \ + OPT_FN(bch2_opt_target), \ + BCH_SB_PROMOTE_TARGET, 0, \ + "(target)", "Device or label to promote data to on read") \ + x(erasure_code, u16, \ + OPT_FS|OPT_INODE|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME, \ + OPT_BOOL(), \ + BCH_SB_ERASURE_CODE, false, \ + NULL, "Enable erasure coding (DO NOT USE YET)") \ + x(inodes_32bit, u8, \ + OPT_FS|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME, \ + OPT_BOOL(), \ + BCH_SB_INODE_32BIT, true, \ + NULL, "Constrain inode numbers to 32 bits") \ + x(shard_inode_numbers, u8, \ + OPT_FS|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME, \ + OPT_BOOL(), \ + BCH_SB_SHARD_INUMS, true, \ + NULL, "Shard new inode numbers by CPU id") \ + x(inodes_use_key_cache, u8, \ + OPT_FS|OPT_FORMAT|OPT_MOUNT, \ + OPT_BOOL(), \ + BCH_SB_INODES_USE_KEY_CACHE, true, \ + NULL, "Use the btree key cache for the inodes btree") \ + x(btree_node_mem_ptr_optimization, u8, \ + OPT_FS|OPT_MOUNT|OPT_RUNTIME, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, true, \ + NULL, "Stash pointer to in memory btree node in btree ptr")\ + x(btree_write_buffer_size, u32, \ + OPT_FS|OPT_MOUNT, \ + OPT_UINT(16, (1U << 20) - 1), \ + BCH2_NO_SB_OPT, 1U << 13, \ + NULL, "Number of btree write buffer entries") \ + x(gc_reserve_percent, u8, \ + OPT_FS|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME, \ + OPT_UINT(5, 21), \ + BCH_SB_GC_RESERVE, 8, \ + "%", "Percentage of disk space to reserve for copygc")\ + x(gc_reserve_bytes, u64, \ + OPT_FS|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME| \ + OPT_HUMAN_READABLE|OPT_SB_FIELD_SECTORS, \ + OPT_UINT(0, U64_MAX), \ + BCH_SB_GC_RESERVE_BYTES, 0, \ + "%", "Amount of disk space to reserve for copygc\n" \ + "Takes precedence over gc_reserve_percent if set")\ + x(root_reserve_percent, u8, \ + OPT_FS|OPT_FORMAT|OPT_MOUNT, \ + OPT_UINT(0, 100), \ + BCH_SB_ROOT_RESERVE, 0, \ + "%", "Percentage of disk space to reserve for superuser")\ + x(wide_macs, u8, \ + OPT_FS|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME, \ + OPT_BOOL(), \ + BCH_SB_128_BIT_MACS, false, \ + NULL, "Store full 128 bits of cryptographic MACs, instead of 80")\ + x(inline_data, u8, \ + OPT_FS|OPT_MOUNT|OPT_RUNTIME, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, true, \ + NULL, "Enable inline data extents") \ + x(acl, u8, \ + OPT_FS|OPT_FORMAT|OPT_MOUNT, \ + OPT_BOOL(), \ + BCH_SB_POSIX_ACL, true, \ + NULL, "Enable POSIX acls") \ + x(usrquota, u8, \ + OPT_FS|OPT_FORMAT|OPT_MOUNT, \ + OPT_BOOL(), \ + BCH_SB_USRQUOTA, false, \ + NULL, "Enable user quotas") \ + x(grpquota, u8, \ + OPT_FS|OPT_FORMAT|OPT_MOUNT, \ + OPT_BOOL(), \ + BCH_SB_GRPQUOTA, false, \ + NULL, "Enable group quotas") \ + x(prjquota, u8, \ + OPT_FS|OPT_FORMAT|OPT_MOUNT, \ + OPT_BOOL(), \ + BCH_SB_PRJQUOTA, false, \ + NULL, "Enable project quotas") \ + x(degraded, u8, \ + OPT_FS|OPT_MOUNT, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, false, \ + NULL, "Allow mounting in degraded mode") \ + x(very_degraded, u8, \ + OPT_FS|OPT_MOUNT, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, false, \ + NULL, "Allow mounting in when data will be missing") \ + x(discard, u8, \ + OPT_FS|OPT_MOUNT|OPT_DEVICE, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, true, \ + NULL, "Enable discard/TRIM support") \ + x(verbose, u8, \ + OPT_FS|OPT_MOUNT|OPT_RUNTIME, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, BCACHEFS_VERBOSE_DEFAULT, \ + NULL, "Extra debugging information during mount/recovery")\ + x(journal_flush_delay, u32, \ + OPT_FS|OPT_MOUNT|OPT_RUNTIME, \ + OPT_UINT(1, U32_MAX), \ + BCH_SB_JOURNAL_FLUSH_DELAY, 1000, \ + NULL, "Delay in milliseconds before automatic journal commits")\ + x(journal_flush_disabled, u8, \ + OPT_FS|OPT_MOUNT|OPT_RUNTIME, \ + OPT_BOOL(), \ + BCH_SB_JOURNAL_FLUSH_DISABLED,false, \ + NULL, "Disable journal flush on sync/fsync\n" \ + "If enabled, writes can be lost, but only since the\n"\ + "last journal write (default 1 second)") \ + x(journal_reclaim_delay, u32, \ + OPT_FS|OPT_MOUNT|OPT_RUNTIME, \ + OPT_UINT(0, U32_MAX), \ + BCH_SB_JOURNAL_RECLAIM_DELAY, 100, \ + NULL, "Delay in milliseconds before automatic journal reclaim")\ + x(move_bytes_in_flight, u32, \ + OPT_HUMAN_READABLE|OPT_FS|OPT_MOUNT|OPT_RUNTIME, \ + OPT_UINT(1024, U32_MAX), \ + BCH2_NO_SB_OPT, 1U << 20, \ + NULL, "Maximum Amount of IO to keep in flight by the move path")\ + x(move_ios_in_flight, u32, \ + OPT_FS|OPT_MOUNT|OPT_RUNTIME, \ + OPT_UINT(1, 1024), \ + BCH2_NO_SB_OPT, 32, \ + NULL, "Maximum number of IOs to keep in flight by the move path")\ + x(fsck, u8, \ + OPT_FS|OPT_MOUNT, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, false, \ + NULL, "Run fsck on mount") \ + x(fix_errors, u8, \ + OPT_FS|OPT_MOUNT, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, false, \ + NULL, "Fix errors during fsck without asking") \ + x(ratelimit_errors, u8, \ + OPT_FS|OPT_MOUNT, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, RATELIMIT_ERRORS_DEFAULT, \ + NULL, "Ratelimit error messages during fsck") \ + x(nochanges, u8, \ + OPT_FS|OPT_MOUNT, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, false, \ + NULL, "Super read only mode - no writes at all will be issued,\n"\ + "even if we have to replay the journal") \ + x(norecovery, u8, \ + OPT_FS|OPT_MOUNT, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, false, \ + NULL, "Don't replay the journal") \ + x(keep_journal, u8, \ + 0, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, false, \ + NULL, "Don't free journal entries/keys after startup")\ + x(read_entire_journal, u8, \ + 0, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, false, \ + NULL, "Read all journal entries, not just dirty ones")\ + x(read_journal_only, u8, \ + 0, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, false, \ + NULL, "Only read the journal, skip the rest of recovery")\ + x(journal_transaction_names, u8, \ + OPT_FS|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME, \ + OPT_BOOL(), \ + BCH_SB_JOURNAL_TRANSACTION_NAMES, true, \ + NULL, "Log transaction function names in journal") \ + x(noexcl, u8, \ + OPT_FS|OPT_MOUNT, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, false, \ + NULL, "Don't open device in exclusive mode") \ + x(direct_io, u8, \ + OPT_FS|OPT_MOUNT, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, true, \ + NULL, "Use O_DIRECT (userspace only)") \ + x(sb, u64, \ + OPT_MOUNT, \ + OPT_UINT(0, S64_MAX), \ + BCH2_NO_SB_OPT, BCH_SB_SECTOR, \ + "offset", "Sector offset of superblock") \ + x(read_only, u8, \ + OPT_FS, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, false, \ + NULL, NULL) \ + x(nostart, u8, \ + 0, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, false, \ + NULL, "Don\'t start filesystem, only open devices") \ + x(reconstruct_alloc, u8, \ + OPT_FS|OPT_MOUNT, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, false, \ + NULL, "Reconstruct alloc btree") \ + x(version_upgrade, u8, \ + OPT_FS|OPT_MOUNT, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, false, \ + NULL, "Set superblock to latest version,\n" \ + "allowing any new features to be used") \ + x(buckets_nouse, u8, \ + 0, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, false, \ + NULL, "Allocate the buckets_nouse bitmap") \ + x(project, u8, \ + OPT_INODE, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, false, \ + NULL, NULL) \ + x(nocow, u8, \ + OPT_FS|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME|OPT_INODE, \ + OPT_BOOL(), \ + BCH_SB_NOCOW, false, \ + NULL, "Nocow mode: Writes will be done in place when possible.\n"\ + "Snapshots and reflink will still caused writes to be COW\n"\ + "Implicitly disables data checksumming, compression and encryption")\ + x(nocow_enabled, u8, \ + OPT_FS|OPT_MOUNT, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, true, \ + NULL, "Enable nocow mode: enables runtime locking in\n"\ + "data move path needed if nocow will ever be in use\n")\ + x(no_data_io, u8, \ + OPT_MOUNT, \ + OPT_BOOL(), \ + BCH2_NO_SB_OPT, false, \ + NULL, "Skip submit_bio() for data reads and writes, " \ + "for performance testing purposes") \ + x(fs_size, u64, \ + OPT_DEVICE, \ + OPT_UINT(0, S64_MAX), \ + BCH2_NO_SB_OPT, 0, \ + "size", "Size of filesystem on device") \ + x(bucket, u32, \ + OPT_DEVICE, \ + OPT_UINT(0, S64_MAX), \ + BCH2_NO_SB_OPT, 0, \ + "size", "Size of filesystem on device") \ + x(durability, u8, \ + OPT_DEVICE, \ + OPT_UINT(0, BCH_REPLICAS_MAX), \ + BCH2_NO_SB_OPT, 1, \ + "n", "Data written to this device will be considered\n"\ + "to have already been replicated n times") struct bch_opts { -#define BCH_OPT(_name, _bits, ...) unsigned _name##_defined:1; +#define x(_name, _bits, ...) unsigned _name##_defined:1; BCH_OPTS() -#undef BCH_OPT +#undef x -#define BCH_OPT(_name, _bits, ...) _bits _name; +#define x(_name, _bits, ...) _bits _name; BCH_OPTS() -#undef BCH_OPT +#undef x }; static const struct bch_opts bch2_opts_default = { -#define BCH_OPT(_name, _bits, _mode, _type, _sb_opt, _default) \ +#define x(_name, _bits, _mode, _type, _sb_opt, _default, ...) \ ._name##_defined = true, \ ._name = _default, \ BCH_OPTS() -#undef BCH_OPT +#undef x }; #define opt_defined(_opts, _name) ((_opts)._name##_defined) @@ -215,32 +477,29 @@ static inline struct bch_opts bch2_opts_empty(void) void bch2_opts_apply(struct bch_opts *, struct bch_opts); enum bch_opt_id { -#define BCH_OPT(_name, ...) Opt_##_name, +#define x(_name, ...) Opt_##_name, BCH_OPTS() -#undef BCH_OPT +#undef x bch2_opts_nr }; struct bch_fs; +struct printbuf; struct bch_option { struct attribute attr; + u64 (*get_sb)(const struct bch_sb *); void (*set_sb)(struct bch_sb *, u64); - enum opt_mode mode; enum opt_type type; + enum opt_flags flags; + u64 min, max; + + const char * const *choices; + int (*parse)(struct bch_fs *, const char *, u64 *); + void (*to_text)(struct printbuf *, struct bch_fs *, struct bch_sb *, u64); - union { - struct { - u64 min, max; - }; - struct { - const char * const *choices; - }; - struct { - int (*parse)(struct bch_fs *, const char *, u64 *); - int (*print)(struct bch_fs *, char *, size_t, u64); - }; - }; + const char *hint; + const char *help; }; @@ -250,43 +509,35 @@ bool bch2_opt_defined_by_id(const struct bch_opts *, enum bch_opt_id); u64 bch2_opt_get_by_id(const struct bch_opts *, enum bch_opt_id); void bch2_opt_set_by_id(struct bch_opts *, enum bch_opt_id, u64); -struct bch_opts bch2_opts_from_sb(struct bch_sb *); +u64 bch2_opt_from_sb(struct bch_sb *, enum bch_opt_id); +int bch2_opts_from_sb(struct bch_opts *, struct bch_sb *); +void __bch2_opt_set_sb(struct bch_sb *, const struct bch_option *, u64); +void bch2_opt_set_sb(struct bch_fs *, const struct bch_option *, u64); int bch2_opt_lookup(const char *); -int bch2_opt_parse(struct bch_fs *, const struct bch_option *, const char *, u64 *); +int bch2_opt_validate(const struct bch_option *, u64, struct printbuf *); +int bch2_opt_parse(struct bch_fs *, const struct bch_option *, + const char *, u64 *, struct printbuf *); #define OPT_SHOW_FULL_LIST (1 << 0) #define OPT_SHOW_MOUNT_STYLE (1 << 1) -int bch2_opt_to_text(struct bch_fs *, char *, size_t, - const struct bch_option *, u64, unsigned); +void bch2_opt_to_text(struct printbuf *, struct bch_fs *, struct bch_sb *, + const struct bch_option *, u64, unsigned); -int bch2_parse_mount_opts(struct bch_opts *, char *); +int bch2_opt_check_may_set(struct bch_fs *, int, u64); +int bch2_opts_check_may_set(struct bch_fs *); +int bch2_parse_mount_opts(struct bch_fs *, struct bch_opts *, char *); /* inode opts: */ -#define BCH_INODE_OPTS() \ - BCH_INODE_OPT(data_checksum, 8) \ - BCH_INODE_OPT(compression, 8) \ - BCH_INODE_OPT(background_compression, 8) \ - BCH_INODE_OPT(data_replicas, 8) \ - BCH_INODE_OPT(promote_target, 16) \ - BCH_INODE_OPT(foreground_target, 16) \ - BCH_INODE_OPT(background_target, 16) - struct bch_io_opts { -#define BCH_INODE_OPT(_name, _bits) unsigned _name##_defined:1; - BCH_INODE_OPTS() -#undef BCH_INODE_OPT - -#define BCH_INODE_OPT(_name, _bits) u##_bits _name; +#define x(_name, _bits) u##_bits _name; BCH_INODE_OPTS() -#undef BCH_INODE_OPT +#undef x }; struct bch_io_opts bch2_opts_to_inode_opts(struct bch_opts); -struct bch_opts bch2_inode_opts_to_opts(struct bch_io_opts); -void bch2_io_opts_apply(struct bch_io_opts *, struct bch_io_opts); bool bch2_opt_is_inode_opt(enum bch_opt_id); #endif /* _BCACHEFS_OPTS_H */