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[bcachefs-tools-debian] / c_src / libbcachefs / opts.h
diff --git a/c_src/libbcachefs/opts.h b/c_src/libbcachefs/opts.h
deleted file mode 100644 (file)
index 93a24fe..0000000
+++ /dev/null
@@ -1,570 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _BCACHEFS_OPTS_H
-#define _BCACHEFS_OPTS_H
-
-#include <linux/bug.h>
-#include <linux/log2.h>
-#include <linux/string.h>
-#include <linux/sysfs.h>
-#include "bcachefs_format.h"
-
-struct bch_fs;
-
-extern const char * const bch2_error_actions[];
-extern const char * const bch2_fsck_fix_opts[];
-extern const char * const bch2_version_upgrade_opts[];
-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_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.
- *
- * Also exposed via sysfs: if an option is writeable, and it's also stored in
- * the superblock, changing it via sysfs (currently? might change this) also
- * updates the superblock.
- *
- * We store options as signed integers, where -1 means undefined. This means we
- * can pass the mount options to bch2_fs_alloc() as a whole struct, and then only
- * apply the options from that struct that are defined.
- */
-
-/* dummy option, for options that aren't stored in the superblock */
-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 {
-       BCH_OPT_BOOL,
-       BCH_OPT_UINT,
-       BCH_OPT_STR,
-       BCH_OPT_FN,
-};
-
-struct bch_opt_fn {
-       int (*parse)(struct bch_fs *, const char *, u64 *, struct printbuf *);
-       void (*to_text)(struct printbuf *, struct bch_fs *, struct bch_sb *, u64);
-       int (*validate)(u64, struct printbuf *);
-};
-
-/**
- * x(name, shortopt, type, in mem type, mode, sb_opt)
- *
- * @name       - name of mount option, sysfs attribute, and struct bch_opts
- *               member
- *
- * @mode       - when opt may be set
- *
- * @sb_option  - name of corresponding superblock option
- *
- * @type       - one of OPT_BOOL, OPT_UINT, OPT_STR
- */
-
-/*
- * XXX: add fields for
- *  - default value
- *  - 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_FIX_ERRORS_OPTS()          \
-       x(exit, 0)                      \
-       x(yes,  1)                      \
-       x(no,   2)                      \
-       x(ask,  3)
-
-enum fsck_err_opts {
-#define x(t, n)        FSCK_FIX_##t,
-       BCH_FIX_ERRORS_OPTS()
-#undef x
-};
-
-#define BCH_OPTS()                                                     \
-       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_FN(bch2_opt_compression),                                 \
-         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_FN(bch2_opt_compression),                                 \
-         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(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_FN(bch2_opt_fix_errors),                                  \
-         BCH2_NO_SB_OPT,               FSCK_FIX_exit,                  \
-         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_MOUNT,                                             \
-         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_STR(bch2_version_upgrade_opts),                           \
-         BCH_SB_VERSION_UPGRADE,       BCH_VERSION_UPGRADE_compatible, \
-         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(stdio,                        u64,                            \
-         0,                                                            \
-         OPT_UINT(0, S64_MAX),                                         \
-         BCH2_NO_SB_OPT,               false,                          \
-         NULL,         "Pointer to a struct stdio_redirect")           \
-       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")      \
-       x(btree_node_prefetch,          u8,                             \
-         OPT_FS|OPT_MOUNT|OPT_RUNTIME,                                 \
-         OPT_BOOL(),                                                   \
-         BCH2_NO_SB_OPT,               true,                           \
-         NULL,         "BTREE_ITER_PREFETCH casuse btree nodes to be\n"\
-         " prefetched sequentially")
-
-struct bch_opts {
-#define x(_name, _bits, ...)   unsigned _name##_defined:1;
-       BCH_OPTS()
-#undef x
-
-#define x(_name, _bits, ...)   _bits   _name;
-       BCH_OPTS()
-#undef x
-};
-
-static const __maybe_unused struct bch_opts bch2_opts_default = {
-#define x(_name, _bits, _mode, _type, _sb_opt, _default, ...)          \
-       ._name##_defined = true,                                        \
-       ._name = _default,                                              \
-
-       BCH_OPTS()
-#undef x
-};
-
-#define opt_defined(_opts, _name)      ((_opts)._name##_defined)
-
-#define opt_get(_opts, _name)                                          \
-       (opt_defined(_opts, _name) ? (_opts)._name : bch2_opts_default._name)
-
-#define opt_set(_opts, _name, _v)                                      \
-do {                                                                   \
-       (_opts)._name##_defined = true;                                 \
-       (_opts)._name = _v;                                             \
-} while (0)
-
-static inline struct bch_opts bch2_opts_empty(void)
-{
-       return (struct bch_opts) { 0 };
-}
-
-void bch2_opts_apply(struct bch_opts *, struct bch_opts);
-
-enum bch_opt_id {
-#define x(_name, ...)  Opt_##_name,
-       BCH_OPTS()
-#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_type           type;
-       enum opt_flags          flags;
-       u64                     min, max;
-
-       const char * const *choices;
-
-       struct bch_opt_fn       fn;
-
-       const char              *hint;
-       const char              *help;
-
-};
-
-extern const struct bch_option bch2_opt_table[];
-
-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);
-
-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_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)
-
-void bch2_opt_to_text(struct printbuf *, struct bch_fs *, struct bch_sb *,
-                     const struct bch_option *, u64, unsigned);
-
-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: */
-
-struct bch_io_opts {
-#define x(_name, _bits)        u##_bits _name;
-       BCH_INODE_OPTS()
-#undef x
-};
-
-struct bch_io_opts bch2_opts_to_inode_opts(struct bch_opts);
-bool bch2_opt_is_inode_opt(enum bch_opt_id);
-
-#endif /* _BCACHEFS_OPTS_H */