#include "bcachefs.h"
#include "compress.h"
#include "disk_groups.h"
+#include "error.h"
#include "opts.h"
#include "super-io.h"
#include "util.h"
-#define x(t, n) #t,
+#define x(t, n, ...) [n] = #t,
const char * const bch2_error_actions[] = {
BCH_ERROR_ACTIONS()
NULL
};
+const char * const bch2_fsck_fix_opts[] = {
+ BCH_FIX_ERRORS_OPTS()
+ NULL
+};
+
+const char * const bch2_version_upgrade_opts[] = {
+ BCH_VERSION_UPGRADE_OPTS()
+ NULL
+};
+
const char * const bch2_sb_features[] = {
BCH_SB_FEATURES()
NULL
NULL
};
-const char * const bch2_btree_ids[] = {
+const char * const __bch2_btree_ids[] = {
BCH_BTREE_IDS()
NULL
};
#undef x
+static int bch2_opt_fix_errors_parse(struct bch_fs *c, const char *val, u64 *res,
+ struct printbuf *err)
+{
+ if (!val) {
+ *res = FSCK_FIX_yes;
+ } else {
+ int ret = match_string(bch2_fsck_fix_opts, -1, val);
+
+ if (ret < 0 && err)
+ prt_str(err, "fix_errors: invalid selection");
+ if (ret < 0)
+ return ret;
+ *res = ret;
+ }
+
+ return 0;
+}
+
+static void bch2_opt_fix_errors_to_text(struct printbuf *out,
+ struct bch_fs *c,
+ struct bch_sb *sb,
+ u64 v)
+{
+ prt_str(out, bch2_fsck_fix_opts[v]);
+}
+
+#define bch2_opt_fix_errors (struct bch_opt_fn) { \
+ .parse = bch2_opt_fix_errors_parse, \
+ .to_text = bch2_opt_fix_errors_to_text, \
+}
+
const char * const bch2_d_types[BCH_DT_MAX] = {
[DT_UNKNOWN] = "unknown",
[DT_FIFO] = "fifo",
#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),\
+ .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 OPT_FN(_fn) .type = BCH_OPT_FN, .fn = _fn
#define x(_name, _bits, _flags, _type, _sb_opt, _default, _hint, _help) \
[Opt_##_name] = { \
return bch2_opt_lookup(name);
}
-static int bch2_opt_validate(const struct bch_option *opt, const char *msg, u64 v)
+int bch2_opt_validate(const struct bch_option *opt, u64 v, struct printbuf *err)
{
if (v < opt->min) {
- if (msg)
- pr_err("invalid %s%s: too small (min %llu)",
- msg, opt->attr.name, opt->min);
- return -ERANGE;
+ if (err)
+ prt_printf(err, "%s: too small (min %llu)",
+ opt->attr.name, opt->min);
+ return -BCH_ERR_ERANGE_option_too_small;
}
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 (err)
+ prt_printf(err, "%s: too big (max %llu)",
+ opt->attr.name, opt->max);
+ return -BCH_ERR_ERANGE_option_too_big;
}
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 (err)
+ prt_printf(err, "%s: not a multiple of 512",
+ opt->attr.name);
+ return -BCH_ERR_opt_parse_error;
}
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;
+ if (err)
+ prt_printf(err, "%s: must be a power of two",
+ opt->attr.name);
+ return -BCH_ERR_opt_parse_error;
}
+ if (opt->fn.validate)
+ return opt->fn.validate(v, err);
+
return 0;
}
-int bch2_opt_parse(struct bch_fs *c, const char *msg,
+int bch2_opt_parse(struct bch_fs *c,
const struct bch_option *opt,
- const char *val, u64 *res)
+ const char *val, u64 *res,
+ struct printbuf *err)
{
ssize_t ret;
switch (opt->type) {
case BCH_OPT_BOOL:
- ret = kstrtou64(val, 10, res);
- if (ret < 0)
+ if (val) {
+ ret = kstrtou64(val, 10, res);
+ } else {
+ ret = 0;
+ *res = 1;
+ }
+
+ if (ret < 0 || (*res != 0 && *res != 1)) {
+ if (err)
+ prt_printf(err, "%s: must be bool", opt->attr.name);
return ret;
+ }
break;
case BCH_OPT_UINT:
+ if (!val) {
+ prt_printf(err, "%s: required value",
+ opt->attr.name);
+ return -EINVAL;
+ }
+
ret = opt->flags & OPT_HUMAN_READABLE
? bch2_strtou64_h(val, res)
: kstrtou64(val, 10, res);
- if (ret < 0)
+ if (ret < 0) {
+ if (err)
+ prt_printf(err, "%s: must be a number",
+ opt->attr.name);
return ret;
+ }
break;
case BCH_OPT_STR:
+ if (!val) {
+ prt_printf(err, "%s: required value",
+ opt->attr.name);
+ return -EINVAL;
+ }
+
ret = match_string(opt->choices, -1, val);
- if (ret < 0)
+ if (ret < 0) {
+ if (err)
+ prt_printf(err, "%s: invalid selection",
+ opt->attr.name);
return ret;
+ }
*res = ret;
break;
case BCH_OPT_FN:
- if (!c)
- return 0;
-
- ret = opt->parse(c, val, res);
- if (ret < 0)
+ ret = opt->fn.parse(c, val, res, err);
+ if (ret < 0) {
+ if (err)
+ prt_printf(err, "%s: parse error",
+ opt->attr.name);
return ret;
+ }
}
- return bch2_opt_validate(opt, msg, *res);
+ return bch2_opt_validate(opt, *res, err);
}
void bch2_opt_to_text(struct printbuf *out,
{
if (flags & OPT_SHOW_MOUNT_STYLE) {
if (opt->type == BCH_OPT_BOOL) {
- pr_buf(out, "%s%s",
+ prt_printf(out, "%s%s",
v ? "" : "no",
opt->attr.name);
return;
}
- pr_buf(out, "%s=", opt->attr.name);
+ prt_printf(out, "%s=", opt->attr.name);
}
switch (opt->type) {
case BCH_OPT_BOOL:
case BCH_OPT_UINT:
if (opt->flags & OPT_HUMAN_READABLE)
- bch2_hprint(out, v);
+ prt_human_readable_u64(out, v);
else
- pr_buf(out, "%lli", v);
+ prt_printf(out, "%lli", v);
break;
case BCH_OPT_STR:
if (flags & OPT_SHOW_FULL_LIST)
- bch2_string_opt_to_text(out, opt->choices, v);
+ prt_string_option(out, opt->choices, v);
else
- pr_buf(out, opt->choices[v]);
+ prt_str(out, opt->choices[v]);
break;
case BCH_OPT_FN:
- opt->to_text(out, c, sb, v);
+ opt->fn.to_text(out, c, sb, v);
break;
default:
BUG();
char *copied_opts, *copied_opts_start;
char *opt, *name, *val;
int ret, id;
+ struct printbuf err = PRINTBUF;
u64 v;
if (!options)
return 0;
+ /*
+ * sys_fsconfig() is now occasionally providing us with option lists
+ * starting with a comma - weird.
+ */
+ if (*options == ',')
+ options++;
+
copied_opts = kstrdup(options, GFP_KERNEL);
if (!copied_opts)
return -1;
name = strsep(&opt, "=");
val = opt;
- if (val) {
- id = bch2_mount_opt_lookup(name);
- if (id < 0)
- goto bad_opt;
-
- ret = bch2_opt_parse(c, "mount option ",
- &bch2_opt_table[id], val, &v);
- if (ret < 0)
- goto bad_val;
- } else {
- id = bch2_mount_opt_lookup(name);
- v = 1;
-
- if (id < 0 &&
- !strncmp("no", name, 2)) {
- id = bch2_mount_opt_lookup(name + 2);
- v = 0;
- }
-
- if (id < 0)
- goto bad_opt;
+ id = bch2_mount_opt_lookup(name);
- if (bch2_opt_table[id].type != BCH_OPT_BOOL)
- goto no_val;
+ /* Check for the form "noopt", negation of a boolean opt: */
+ if (id < 0 &&
+ !val &&
+ !strncmp("no", name, 2)) {
+ id = bch2_mount_opt_lookup(name + 2);
+ val = "0";
}
+ /* Unknown options are ignored: */
+ if (id < 0)
+ continue;
+
if (!(bch2_opt_table[id].flags & OPT_MOUNT))
goto bad_opt;
!IS_ENABLED(CONFIG_BCACHEFS_QUOTA))
goto bad_opt;
+ ret = bch2_opt_parse(c, &bch2_opt_table[id], val, &v, &err);
+ if (ret < 0)
+ goto bad_val;
+
bch2_opt_set_by_id(opts, id, v);
}
ret = -1;
goto out;
bad_val:
- pr_err("Invalid value %s for mount option %s", val, name);
- ret = -1;
- goto out;
-no_val:
- pr_err("Mount option %s requires a value", name);
+ pr_err("Invalid mount option %s", err.buf);
ret = -1;
goto out;
out:
kfree(copied_opts_start);
+ printbuf_exit(&err);
return ret;
}
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 == BCH2_NO_SB_OPT)
continue;
- v = bch2_opt_from_sb(sb, id);
-
- ret = bch2_opt_validate(opt, "superblock option ", v);
- if (ret)
- return ret;
-
- bch2_opt_set_by_id(opts, id, v);
+ bch2_opt_set_by_id(opts, id, bch2_opt_from_sb(sb, id));
}
return 0;
struct bch_io_opts bch2_opts_to_inode_opts(struct bch_opts src)
{
- struct bch_io_opts ret = { 0 };
-#define x(_name, _bits) \
- if (opt_defined(src, _name)) \
- opt_set(ret, _name, src._name);
- BCH_INODE_OPTS()
-#undef x
- return ret;
-}
-
-struct bch_opts bch2_inode_opts_to_opts(struct bch_io_opts src)
-{
- struct bch_opts ret = { 0 };
-#define x(_name, _bits) \
- if (opt_defined(src, _name)) \
- opt_set(ret, _name, src._name);
- BCH_INODE_OPTS()
-#undef x
- return ret;
-}
-
-void bch2_io_opts_apply(struct bch_io_opts *dst, struct bch_io_opts src)
-{
-#define x(_name, _bits) \
- if (opt_defined(src, _name)) \
- opt_set(*dst, _name, src._name);
+ return (struct bch_io_opts) {
+#define x(_name, _bits) ._name = src._name,
BCH_INODE_OPTS()
#undef x
+ };
}
bool bch2_opt_is_inode_opt(enum bch_opt_id id)
projects / bcachefs-tools-debian / blobdiff