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btrfs: add fs_parameter definitions

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In order to convert to the new mount API we have to change how we do the
mount option parsing.  For now we're going to duplicate these helpers to
make it easier to follow, and then remove the old code once everything
is in place.  This patch contains the re-definition of all of our mount
options into the new fs_parameter_spec format.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Acked-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2023-11-22 12:17:44 -05:00 committed by David Sterba
parent 2496bff6e5
commit 15ddcdd34e
1 changed files with 125 additions and 1 deletions
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126
fs/btrfs/super.c
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@ -27,6 +27,7 @@
#include <linux/crc32c.h>
#include <linux/btrfs.h>
#include <linux/security.h>
#include <linux/fs_parser.h>
#include "messages.h"
#include "delayed-inode.h"
#include "ctree.h"
@ -135,7 +136,7 @@ enum {
/* Debugging options */
Opt_enospc_debug, Opt_noenospc_debug,
#ifdef CONFIG_BTRFS_DEBUG
Opt_fragment_data, Opt_fragment_metadata, Opt_fragment_all,
Opt_fragment, Opt_fragment_data, Opt_fragment_metadata, Opt_fragment_all,
#endif
#ifdef CONFIG_BTRFS_FS_REF_VERIFY
Opt_ref_verify,
@ -225,6 +226,129 @@ static const match_table_t rescue_tokens = {
{Opt_err, NULL},
};
enum {
Opt_fatal_errors_panic,
Opt_fatal_errors_bug,
};
static const struct constant_table btrfs_parameter_fatal_errors[] = {
{ "panic", Opt_fatal_errors_panic },
{ "bug", Opt_fatal_errors_bug },
{}
};
enum {
Opt_discard_sync,
Opt_discard_async,
};
static const struct constant_table btrfs_parameter_discard[] = {
{ "sync", Opt_discard_sync },
{ "async", Opt_discard_async },
{}
};
enum {
Opt_space_cache_v1,
Opt_space_cache_v2,
};
static const struct constant_table btrfs_parameter_space_cache[] = {
{ "v1", Opt_space_cache_v1 },
{ "v2", Opt_space_cache_v2 },
{}
};
enum {
Opt_rescue_usebackuproot,
Opt_rescue_nologreplay,
Opt_rescue_ignorebadroots,
Opt_rescue_ignoredatacsums,
Opt_rescue_parameter_all,
};
static const struct constant_table btrfs_parameter_rescue[] = {
{ "usebackuproot", Opt_rescue_usebackuproot },
{ "nologreplay", Opt_rescue_nologreplay },
{ "ignorebadroots", Opt_rescue_ignorebadroots },
{ "ibadroots", Opt_rescue_ignorebadroots },
{ "ignoredatacsums", Opt_rescue_ignoredatacsums },
{ "idatacsums", Opt_rescue_ignoredatacsums },
{ "all", Opt_rescue_parameter_all },
{}
};
#ifdef CONFIG_BTRFS_DEBUG
enum {
Opt_fragment_parameter_data,
Opt_fragment_parameter_metadata,
Opt_fragment_parameter_all,
};
static const struct constant_table btrfs_parameter_fragment[] = {
{ "data", Opt_fragment_parameter_data },
{ "metadata", Opt_fragment_parameter_metadata },
{ "all", Opt_fragment_parameter_all },
{}
};
#endif
static const struct fs_parameter_spec btrfs_fs_parameters[] __maybe_unused = {
fsparam_flag_no("acl", Opt_acl),
fsparam_flag_no("autodefrag", Opt_defrag),
fsparam_flag_no("barrier", Opt_barrier),
fsparam_flag("clear_cache", Opt_clear_cache),
fsparam_u32("commit", Opt_commit_interval),
fsparam_flag("compress", Opt_compress),
fsparam_string("compress", Opt_compress_type),
fsparam_flag("compress-force", Opt_compress_force),
fsparam_string("compress-force", Opt_compress_force_type),
fsparam_flag_no("datacow", Opt_datacow),
fsparam_flag_no("datasum", Opt_datasum),
fsparam_flag("degraded", Opt_degraded),
fsparam_string("device", Opt_device),
fsparam_flag_no("discard", Opt_discard),
fsparam_enum("discard", Opt_discard_mode, btrfs_parameter_discard),
fsparam_enum("fatal_errors", Opt_fatal_errors, btrfs_parameter_fatal_errors),
fsparam_flag_no("flushoncommit", Opt_flushoncommit),
fsparam_flag_no("inode_cache", Opt_inode_cache),
fsparam_string("max_inline", Opt_max_inline),
fsparam_u32("metadata_ratio", Opt_ratio),
fsparam_flag("rescan_uuid_tree", Opt_rescan_uuid_tree),
fsparam_flag("skip_balance", Opt_skip_balance),
fsparam_flag_no("space_cache", Opt_space_cache),
fsparam_enum("space_cache", Opt_space_cache_version, btrfs_parameter_space_cache),
fsparam_flag_no("ssd", Opt_ssd),
fsparam_flag_no("ssd_spread", Opt_ssd_spread),
fsparam_string("subvol", Opt_subvol),
fsparam_flag("subvol=", Opt_subvol_empty),
fsparam_u64("subvolid", Opt_subvolid),
fsparam_u32("thread_pool", Opt_thread_pool),
fsparam_flag_no("treelog", Opt_treelog),
fsparam_flag("user_subvol_rm_allowed", Opt_user_subvol_rm_allowed),
/* Rescue options. */
fsparam_enum("rescue", Opt_rescue, btrfs_parameter_rescue),
/* Deprecated, with alias rescue=nologreplay */
__fsparam(NULL, "nologreplay", Opt_nologreplay, fs_param_deprecated, NULL),
/* Deprecated, with alias rescue=usebackuproot */
__fsparam(NULL, "usebackuproot", Opt_usebackuproot, fs_param_deprecated, NULL),
/* Deprecated options. */
__fsparam(NULL, "recovery", Opt_recovery,
fs_param_neg_with_no | fs_param_deprecated, NULL),
/* Debugging options. */
fsparam_flag_no("enospc_debug", Opt_enospc_debug),
#ifdef CONFIG_BTRFS_DEBUG
fsparam_enum("fragment", Opt_fragment, btrfs_parameter_fragment),
#endif
#ifdef CONFIG_BTRFS_FS_REF_VERIFY
fsparam_flag("ref_verify", Opt_ref_verify),
#endif
{}
};
static bool check_ro_option(struct btrfs_fs_info *fs_info, unsigned long opt,
const char *opt_name)
{