summaryrefslogtreecommitdiff
path: root/fs/bcachefs/opts.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/bcachefs/opts.c')
-rw-r--r--fs/bcachefs/opts.c141
1 files changed, 101 insertions, 40 deletions
diff --git a/fs/bcachefs/opts.c b/fs/bcachefs/opts.c
index 8db8096e5ed4..13a9a2fcd575 100644
--- a/fs/bcachefs/opts.c
+++ b/fs/bcachefs/opts.c
@@ -1,7 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/kernel.h>
#include "bcachefs.h"
+#include "compress.h"
#include "disk_groups.h"
#include "opts.h"
#include "super-io.h"
@@ -73,22 +75,22 @@ const char * const bch2_dev_state[] = {
void bch2_opts_apply(struct bch_opts *dst, struct bch_opts src)
{
-#define BCH_OPT(_name, ...) \
+#define x(_name, ...) \
if (opt_defined(src, _name)) \
opt_set(*dst, _name, src._name);
BCH_OPTS()
-#undef BCH_OPT
+#undef x
}
bool bch2_opt_defined_by_id(const struct bch_opts *opts, enum bch_opt_id id)
{
switch (id) {
-#define BCH_OPT(_name, ...) \
+#define x(_name, ...) \
case Opt_##_name: \
return opt_defined(*opts, _name);
BCH_OPTS()
-#undef BCH_OPT
+#undef x
default:
BUG();
}
@@ -97,11 +99,11 @@ bool bch2_opt_defined_by_id(const struct bch_opts *opts, enum bch_opt_id id)
u64 bch2_opt_get_by_id(const struct bch_opts *opts, enum bch_opt_id id)
{
switch (id) {
-#define BCH_OPT(_name, ...) \
+#define x(_name, ...) \
case Opt_##_name: \
return opts->_name;
BCH_OPTS()
-#undef BCH_OPT
+#undef x
default:
BUG();
}
@@ -110,12 +112,12 @@ u64 bch2_opt_get_by_id(const struct bch_opts *opts, enum bch_opt_id id)
void bch2_opt_set_by_id(struct bch_opts *opts, enum bch_opt_id id, u64 v)
{
switch (id) {
-#define BCH_OPT(_name, ...) \
+#define x(_name, ...) \
case Opt_##_name: \
opt_set(*opts, _name, v); \
break;
BCH_OPTS()
-#undef BCH_OPT
+#undef x
default:
BUG();
}
@@ -129,11 +131,11 @@ struct bch_opts bch2_opts_from_sb(struct bch_sb *sb)
{
struct bch_opts opts = bch2_opts_empty();
-#define BCH_OPT(_name, _bits, _mode, _type, _sb_opt, _default) \
+#define x(_name, _bits, _mode, _type, _sb_opt, ...) \
if (_sb_opt != NO_SB_OPT) \
opt_set(opts, _name, _sb_opt(sb));
BCH_OPTS()
-#undef BCH_OPT
+#undef x
return opts;
}
@@ -141,24 +143,27 @@ struct bch_opts bch2_opts_from_sb(struct bch_sb *sb)
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_FN(_fn) .type = BCH_OPT_FN, \
.parse = _fn##_parse, \
- .print = _fn##_print
+ .to_text = _fn##_to_text
-#define BCH_OPT(_name, _bits, _mode, _type, _sb_opt, _default) \
+#define x(_name, _bits, _mode, _type, _sb_opt, _default, _hint, _help) \
[Opt_##_name] = { \
.attr = { \
.name = #_name, \
- .mode = _mode == OPT_RUNTIME ? 0644 : 0444, \
+ .mode = (_mode) & OPT_RUNTIME ? 0644 : 0444, \
}, \
.mode = _mode, \
+ .hint = _hint, \
+ .help = _help, \
.set_sb = SET_##_sb_opt, \
_type \
},
BCH_OPTS()
-#undef BCH_OPT
+#undef x
};
int bch2_opt_lookup(const char *name)
@@ -217,8 +222,21 @@ int bch2_opt_parse(struct bch_fs *c, const struct bch_option *opt,
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 = bch2_read_string_list(val, opt->choices);
+ ret = match_string(opt->choices, -1, val);
if (ret < 0)
return ret;
@@ -234,38 +252,81 @@ int bch2_opt_parse(struct bch_fs *c, const struct bch_option *opt,
return 0;
}
-int bch2_opt_to_text(struct bch_fs *c, char *buf, size_t len,
- const struct bch_option *opt, u64 v,
- unsigned flags)
+void bch2_opt_to_text(struct printbuf *out, struct bch_fs *c,
+ const struct bch_option *opt, u64 v,
+ unsigned flags)
{
- char *out = buf, *end = buf + len;
-
if (flags & OPT_SHOW_MOUNT_STYLE) {
- if (opt->type == BCH_OPT_BOOL)
- return scnprintf(out, end - out, "%s%s",
- v ? "" : "no",
- opt->attr.name);
+ if (opt->type == BCH_OPT_BOOL) {
+ pr_buf(out, "%s%s",
+ v ? "" : "no",
+ opt->attr.name);
+ return;
+ }
- out += scnprintf(out, end - out, "%s=", opt->attr.name);
+ pr_buf(out, "%s=", opt->attr.name);
}
switch (opt->type) {
case BCH_OPT_BOOL:
case BCH_OPT_UINT:
- out += scnprintf(out, end - out, "%lli", v);
+ pr_buf(out, "%lli", v);
+ break;
+ case BCH_OPT_SECTORS:
+ bch2_hprint(out, v);
break;
case BCH_OPT_STR:
- out += (flags & OPT_SHOW_FULL_LIST)
- ? bch2_scnprint_string_list(out, end - out, opt->choices, v)
- : scnprintf(out, end - out, opt->choices[v]);
+ if (flags & OPT_SHOW_FULL_LIST)
+ bch2_string_opt_to_text(out, opt->choices, v);
+ else
+ pr_buf(out, opt->choices[v]);
break;
case BCH_OPT_FN:
- return opt->print(c, out, end - out, v);
+ opt->to_text(out, c, v);
+ break;
default:
BUG();
}
+}
+
+int bch2_opt_check_may_set(struct bch_fs *c, int id, u64 v)
+{
+ int ret = 0;
+
+ switch (id) {
+ case Opt_compression:
+ case Opt_background_compression:
+ ret = bch2_check_set_has_compressed_data(c, v);
+ break;
+ case Opt_erasure_code:
+ if (v &&
+ !(c->sb.features & (1ULL << BCH_FEATURE_EC))) {
+ mutex_lock(&c->sb_lock);
+ c->disk_sb.sb->features[0] |=
+ cpu_to_le64(1ULL << BCH_FEATURE_EC);
+
+ bch2_write_super(c);
+ mutex_unlock(&c->sb_lock);
+ }
+ break;
+ }
+
+ return ret;
+}
+
+int bch2_opts_check_may_set(struct bch_fs *c)
+{
+ unsigned i;
+ int ret;
+
+ for (i = 0; i < bch2_opts_nr; i++) {
+ ret = bch2_opt_check_may_set(c, i,
+ bch2_opt_get_by_id(&c->opts, i));
+ if (ret)
+ return ret;
+ }
- return out - buf;
+ return 0;
}
int bch2_parse_mount_opts(struct bch_opts *opts, char *options)
@@ -303,7 +364,7 @@ int bch2_parse_mount_opts(struct bch_opts *opts, char *options)
goto no_val;
}
- if (bch2_opt_table[id].mode < OPT_MOUNT)
+ if (!(bch2_opt_table[id].mode & OPT_MOUNT))
goto bad_opt;
if (id == Opt_acl &&
@@ -335,40 +396,40 @@ no_val:
struct bch_io_opts bch2_opts_to_inode_opts(struct bch_opts src)
{
struct bch_io_opts ret = { 0 };
-#define BCH_INODE_OPT(_name, _bits) \
+#define x(_name, _bits) \
if (opt_defined(src, _name)) \
opt_set(ret, _name, src._name);
BCH_INODE_OPTS()
-#undef BCH_INODE_OPT
+#undef x
return ret;
}
struct bch_opts bch2_inode_opts_to_opts(struct bch_io_opts src)
{
struct bch_opts ret = { 0 };
-#define BCH_INODE_OPT(_name, _bits) \
+#define x(_name, _bits) \
if (opt_defined(src, _name)) \
opt_set(ret, _name, src._name);
BCH_INODE_OPTS()
-#undef BCH_INODE_OPT
+#undef x
return ret;
}
void bch2_io_opts_apply(struct bch_io_opts *dst, struct bch_io_opts src)
{
-#define BCH_INODE_OPT(_name, _bits) \
+#define x(_name, _bits) \
if (opt_defined(src, _name)) \
opt_set(*dst, _name, src._name);
BCH_INODE_OPTS()
-#undef BCH_INODE_OPT
+#undef x
}
bool bch2_opt_is_inode_opt(enum bch_opt_id id)
{
static const enum bch_opt_id inode_opt_list[] = {
-#define BCH_INODE_OPT(_name, _bits) Opt_##_name,
+#define x(_name, _bits) Opt_##_name,
BCH_INODE_OPTS()
-#undef BCH_INODE_OPT
+#undef x
};
unsigned i;
generated by cgit v1.2.3 (git 2.46.0) at 2025-07-01 01:08:33 +0000