#include "super-io.h"
#include "util.h"
+#define x(t, n) #t,
+
const char * const bch2_error_actions[] = {
- "continue",
- "remount-ro",
- "panic",
+ BCH_ERROR_ACTIONS()
NULL
};
const char * const bch2_sb_features[] = {
-#define x(f, n) #f,
BCH_SB_FEATURES()
-#undef x
+ NULL
+};
+
+const char * const bch2_sb_compat[] = {
+ BCH_SB_COMPAT()
+ NULL
+};
+
+const char * const bch2_btree_ids[] = {
+ BCH_BTREE_IDS()
+ NULL
+};
+
+const char * const bch2_csum_types[] = {
+ BCH_CSUM_TYPES()
NULL
};
const char * const bch2_csum_opts[] = {
- "none",
- "crc32c",
- "crc64",
+ BCH_CSUM_OPTS()
+ NULL
+};
+
+const char * const bch2_compression_types[] = {
+ BCH_COMPRESSION_TYPES()
NULL
};
const char * const bch2_compression_opts[] = {
-#define x(t, n) #t,
BCH_COMPRESSION_OPTS()
-#undef x
NULL
};
const char * const bch2_str_hash_types[] = {
- "crc32c",
- "crc64",
- "siphash",
+ BCH_STR_HASH_TYPES()
+ NULL
+};
+
+const char * const bch2_str_hash_opts[] = {
+ BCH_STR_HASH_OPTS()
NULL
};
const char * const bch2_data_types[] = {
-#define x(t, n) #t,
BCH_DATA_TYPES()
-#undef x
NULL
};
-const char * const bch2_cache_replacement_policies[] = {
- "lru",
- "fifo",
- "random",
+const char * const bch2_member_states[] = {
+ BCH_MEMBER_STATES()
NULL
};
-/* Default is -1; we skip past it for struct cached_dev's cache mode */
-const char * const bch2_cache_modes[] = {
- "default",
- "writethrough",
- "writeback",
- "writearound",
- "none",
+const char * const bch2_jset_entry_types[] = {
+ BCH_JSET_ENTRY_TYPES()
NULL
};
-const char * const bch2_dev_state[] = {
- "readwrite",
- "readonly",
- "failed",
- "spare",
+const char * const bch2_fs_usage_types[] = {
+ BCH_FS_USAGE_TYPES()
NULL
};
+#undef x
+
+const char * const bch2_d_types[BCH_DT_MAX] = {
+ [DT_UNKNOWN] = "unknown",
+ [DT_FIFO] = "fifo",
+ [DT_CHR] = "chr",
+ [DT_DIR] = "dir",
+ [DT_BLK] = "blk",
+ [DT_REG] = "reg",
+ [DT_LNK] = "lnk",
+ [DT_SOCK] = "sock",
+ [DT_WHT] = "whiteout",
+ [DT_SUBVOL] = "subvol",
+};
+
void bch2_opts_apply(struct bch_opts *dst, struct bch_opts src)
{
#define x(_name, ...) \
}
}
-/*
- * Initial options from superblock - here we don't want any options undefined,
- * any options the superblock doesn't specify are set to 0:
- */
-struct bch_opts bch2_opts_from_sb(struct bch_sb *sb)
-{
- struct bch_opts opts = bch2_opts_empty();
-
-#define x(_name, _bits, _mode, _type, _sb_opt, ...) \
- if (_sb_opt != NO_SB_OPT) \
- opt_set(opts, _name, _sb_opt(sb));
- BCH_OPTS()
-#undef x
-
- return opts;
-}
-
const struct bch_option bch2_opt_table[] = {
-#define OPT_BOOL() .type = BCH_OPT_BOOL
-#define OPT_UINT(_min, _max) .type = BCH_OPT_UINT, .min = _min, .max = _max
-#define OPT_SECTORS(_min, _max) .type = BCH_OPT_SECTORS, .min = _min, .max = _max
-#define OPT_STR(_choices) .type = BCH_OPT_STR, .choices = _choices
+#define OPT_BOOL() .type = BCH_OPT_BOOL, .min = 0, .max = 2
+#define OPT_UINT(_min, _max) .type = BCH_OPT_UINT, \
+ .min = _min, .max = _max
+#define OPT_STR(_choices) .type = BCH_OPT_STR, \
+ .min = 0, .max = ARRAY_SIZE(_choices),\
+ .choices = _choices
#define OPT_FN(_fn) .type = BCH_OPT_FN, \
.parse = _fn##_parse, \
.to_text = _fn##_to_text
-#define x(_name, _bits, _mode, _type, _sb_opt, _default, _hint, _help) \
+#define x(_name, _bits, _flags, _type, _sb_opt, _default, _hint, _help) \
[Opt_##_name] = { \
.attr = { \
.name = #_name, \
- .mode = (_mode) & OPT_RUNTIME ? 0644 : 0444, \
+ .mode = (_flags) & OPT_RUNTIME ? 0644 : 0444, \
}, \
- .mode = _mode, \
+ .flags = _flags, \
.hint = _hint, \
.help = _help, \
+ .get_sb = _sb_opt, \
.set_sb = SET_##_sb_opt, \
_type \
},
return bch2_opt_lookup(name);
}
-int bch2_opt_parse(struct bch_fs *c, const struct bch_option *opt,
+static int bch2_opt_validate(const struct bch_option *opt, const char *msg, u64 v)
+{
+ if (v < opt->min) {
+ if (msg)
+ pr_err("invalid %s%s: too small (min %llu)",
+ msg, opt->attr.name, opt->min);
+ return -ERANGE;
+ }
+
+ if (opt->max && v >= opt->max) {
+ if (msg)
+ pr_err("invalid %s%s: too big (max %llu)",
+ msg, opt->attr.name, opt->max);
+ return -ERANGE;
+ }
+
+ if ((opt->flags & OPT_SB_FIELD_SECTORS) && (v & 511)) {
+ if (msg)
+ pr_err("invalid %s %s: not a multiple of 512",
+ msg, opt->attr.name);
+ return -EINVAL;
+ }
+
+ if ((opt->flags & OPT_MUST_BE_POW_2) && !is_power_of_2(v)) {
+ if (msg)
+ pr_err("invalid %s%s: must be a power of two",
+ msg, opt->attr.name);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int bch2_opt_parse(struct bch_fs *c, const char *msg,
+ const struct bch_option *opt,
const char *val, u64 *res)
{
ssize_t ret;
ret = kstrtou64(val, 10, res);
if (ret < 0)
return ret;
-
- if (*res > 1)
- return -ERANGE;
break;
case BCH_OPT_UINT:
- ret = kstrtou64(val, 10, res);
+ ret = opt->flags & OPT_HUMAN_READABLE
+ ? bch2_strtou64_h(val, res)
+ : kstrtou64(val, 10, res);
if (ret < 0)
return ret;
-
- if (*res < opt->min || *res >= opt->max)
- return -ERANGE;
- break;
- case BCH_OPT_SECTORS:
- ret = bch2_strtou64_h(val, res);
- if (ret < 0)
- return ret;
-
- if (*res & 511)
- return -EINVAL;
-
- *res >>= 9;
-
- if (*res < opt->min || *res >= opt->max)
- return -ERANGE;
break;
case BCH_OPT_STR:
ret = match_string(opt->choices, -1, val);
break;
case BCH_OPT_FN:
if (!c)
- return -EINVAL;
+ return 0;
- return opt->parse(c, val, res);
+ ret = opt->parse(c, val, res);
+ if (ret < 0)
+ return ret;
}
- return 0;
+ return bch2_opt_validate(opt, msg, *res);
}
void bch2_opt_to_text(struct printbuf *out, struct bch_fs *c,
switch (opt->type) {
case BCH_OPT_BOOL:
case BCH_OPT_UINT:
- pr_buf(out, "%lli", v);
- break;
- case BCH_OPT_SECTORS:
- bch2_hprint(out, v);
+ if (opt->flags & OPT_HUMAN_READABLE)
+ bch2_hprint(out, v);
+ else
+ pr_buf(out, "%lli", v);
break;
case BCH_OPT_STR:
if (flags & OPT_SHOW_FULL_LIST)
return 0;
}
-int bch2_parse_mount_opts(struct bch_opts *opts, char *options)
+int bch2_parse_mount_opts(struct bch_fs *c, struct bch_opts *opts,
+ char *options)
{
+ char *copied_opts, *copied_opts_start;
char *opt, *name, *val;
int ret, id;
u64 v;
- while ((opt = strsep(&options, ",")) != NULL) {
+ if (!options)
+ return 0;
+
+ copied_opts = kstrdup(options, GFP_KERNEL);
+ if (!copied_opts)
+ return -1;
+ copied_opts_start = copied_opts;
+
+ while ((opt = strsep(&copied_opts, ",")) != NULL) {
name = strsep(&opt, "=");
val = opt;
if (id < 0)
goto bad_opt;
- ret = bch2_opt_parse(NULL, &bch2_opt_table[id], val, &v);
+ ret = bch2_opt_parse(c, "mount option ",
+ &bch2_opt_table[id], val, &v);
if (ret < 0)
goto bad_val;
} else {
goto no_val;
}
- if (!(bch2_opt_table[id].mode & OPT_MOUNT))
+ if (!(bch2_opt_table[id].flags & OPT_MOUNT))
goto bad_opt;
if (id == Opt_acl &&
bch2_opt_set_by_id(opts, id, v);
}
- return 0;
+ ret = 0;
+ goto out;
+
bad_opt:
pr_err("Bad mount option %s", name);
- return -1;
+ ret = -1;
+ goto out;
bad_val:
pr_err("Invalid value %s for mount option %s", val, name);
- return -1;
+ ret = -1;
+ goto out;
no_val:
pr_err("Mount option %s requires a value", name);
- return -1;
+ ret = -1;
+ goto out;
+out:
+ kfree(copied_opts_start);
+ return ret;
+}
+
+/*
+ * Initial options from superblock - here we don't want any options undefined,
+ * any options the superblock doesn't specify are set to 0:
+ */
+int bch2_opts_from_sb(struct bch_opts *opts, struct bch_sb *sb)
+{
+ unsigned id;
+ int ret;
+
+ for (id = 0; id < bch2_opts_nr; id++) {
+ const struct bch_option *opt = bch2_opt_table + id;
+ u64 v;
+
+ if (opt->get_sb == NO_SB_OPT)
+ continue;
+
+ v = opt->get_sb(sb);
+
+ if (opt->flags & OPT_SB_FIELD_ILOG2)
+ v = 1ULL << v;
+
+ if (opt->flags & OPT_SB_FIELD_SECTORS)
+ v <<= 9;
+
+ ret = bch2_opt_validate(opt, "superblock option ", v);
+ if (ret)
+ return ret;
+
+ bch2_opt_set_by_id(opts, id, v);
+ }
+
+ return 0;
+}
+
+void __bch2_opt_set_sb(struct bch_sb *sb, const struct bch_option *opt, u64 v)
+{
+ if (opt->set_sb == SET_NO_SB_OPT)
+ return;
+
+ if (opt->flags & OPT_SB_FIELD_SECTORS)
+ v >>= 9;
+
+ if (opt->flags & OPT_SB_FIELD_ILOG2)
+ v = ilog2(v);
+
+ opt->set_sb(sb, v);
+}
+
+void bch2_opt_set_sb(struct bch_fs *c, const struct bch_option *opt, u64 v)
+{
+ if (opt->set_sb == SET_NO_SB_OPT)
+ return;
+
+ mutex_lock(&c->sb_lock);
+ __bch2_opt_set_sb(c->disk_sb.sb, opt, v);
+ bch2_write_super(c);
+ mutex_unlock(&c->sb_lock);
}
/* io opts: */
projects / bcachefs-tools-debian / blobdiff