[f2fs-dev,9/9] f2fs: remove unused structure and functions

Commit Message

Hongbo Li Aug. 14, 2024, 2:39 a.m. UTC

The match_table_t and other some functions (which have been replaced
during reconstructure) now are not used, so we can remove them.

Signed-off-by: Hongbo Li <[e-mail]>
---
 fs/f2fs/super.c | 264 ------------------------------------------------
 1 file changed, 264 deletions(-)

Patch

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 86acb7354d95..46c0d2087966 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -274,83 +274,6 @@  static const struct fs_parameter_spec f2fs_param_specs[] = {
 	{}
 };
 
-static match_table_t f2fs_tokens = {
-	{Opt_gc_background, "background_gc=%s"},
-	{Opt_disable_roll_forward, "disable_roll_forward"},
-	{Opt_norecovery, "norecovery"},
-	{Opt_discard, "discard"},
-	{Opt_nodiscard, "nodiscard"},
-	{Opt_noheap, "no_heap"},
-	{Opt_heap, "heap"},
-	{Opt_user_xattr, "user_xattr"},
-	{Opt_nouser_xattr, "nouser_xattr"},
-	{Opt_acl, "acl"},
-	{Opt_noacl, "noacl"},
-	{Opt_active_logs, "active_logs=%u"},
-	{Opt_disable_ext_identify, "disable_ext_identify"},
-	{Opt_inline_xattr, "inline_xattr"},
-	{Opt_noinline_xattr, "noinline_xattr"},
-	{Opt_inline_xattr_size, "inline_xattr_size=%u"},
-	{Opt_inline_data, "inline_data"},
-	{Opt_inline_dentry, "inline_dentry"},
-	{Opt_noinline_dentry, "noinline_dentry"},
-	{Opt_flush_merge, "flush_merge"},
-	{Opt_noflush_merge, "noflush_merge"},
-	{Opt_barrier, "barrier"},
-	{Opt_nobarrier, "nobarrier"},
-	{Opt_fastboot, "fastboot"},
-	{Opt_extent_cache, "extent_cache"},
-	{Opt_noextent_cache, "noextent_cache"},
-	{Opt_noinline_data, "noinline_data"},
-	{Opt_data_flush, "data_flush"},
-	{Opt_reserve_root, "reserve_root=%u"},
-	{Opt_resgid, "resgid=%u"},
-	{Opt_resuid, "resuid=%u"},
-	{Opt_mode, "mode=%s"},
-	{Opt_fault_injection, "fault_injection=%u"},
-	{Opt_fault_type, "fault_type=%u"},
-	{Opt_quota, "quota"},
-	{Opt_noquota, "noquota"},
-	{Opt_usrquota, "usrquota"},
-	{Opt_grpquota, "grpquota"},
-	{Opt_prjquota, "prjquota"},
-	{Opt_usrjquota, "usrjquota=%s"},
-	{Opt_grpjquota, "grpjquota=%s"},
-	{Opt_prjjquota, "prjjquota=%s"},
-	{Opt_offusrjquota, "usrjquota="},
-	{Opt_offgrpjquota, "grpjquota="},
-	{Opt_offprjjquota, "prjjquota="},
-	{Opt_jqfmt_vfsold, "jqfmt=vfsold"},
-	{Opt_jqfmt_vfsv0, "jqfmt=vfsv0"},
-	{Opt_jqfmt_vfsv1, "jqfmt=vfsv1"},
-	{Opt_alloc, "alloc_mode=%s"},
-	{Opt_fsync, "fsync_mode=%s"},
-	{Opt_test_dummy_encryption, "test_dummy_encryption=%s"},
-	{Opt_test_dummy_encryption, "test_dummy_encryption"},
-	{Opt_inlinecrypt, "inlinecrypt"},
-	{Opt_checkpoint_disable, "checkpoint=disable"},
-	{Opt_checkpoint_disable_cap, "checkpoint=disable:%u"},
-	{Opt_checkpoint_disable_cap_perc, "checkpoint=disable:%u%%"},
-	{Opt_checkpoint_enable, "checkpoint=enable"},
-	{Opt_checkpoint_merge, "checkpoint_merge"},
-	{Opt_nocheckpoint_merge, "nocheckpoint_merge"},
-	{Opt_compress_algorithm, "compress_algorithm=%s"},
-	{Opt_compress_log_size, "compress_log_size=%u"},
-	{Opt_compress_extension, "compress_extension=%s"},
-	{Opt_nocompress_extension, "nocompress_extension=%s"},
-	{Opt_compress_chksum, "compress_chksum"},
-	{Opt_compress_mode, "compress_mode=%s"},
-	{Opt_compress_cache, "compress_cache"},
-	{Opt_atgc, "atgc"},
-	{Opt_gc_merge, "gc_merge"},
-	{Opt_nogc_merge, "nogc_merge"},
-	{Opt_discard_unit, "discard_unit=%s"},
-	{Opt_memory_mode, "memory=%s"},
-	{Opt_age_extent_cache, "age_extent_cache"},
-	{Opt_errors, "errors=%s"},
-	{Opt_err, NULL},
-};
-
 #define F2FS_SPEC_background_gc			(1 << 0)
 #define F2FS_SPEC_inline_xattr_size		(1 << 1)
 #define F2FS_SPEC_active_logs			(1 << 2)
@@ -533,59 +456,6 @@  static void init_once(void *foo)
 #ifdef CONFIG_QUOTA
 static const char * const quotatypes[] = INITQFNAMES;
 #define QTYPE2NAME(t) (quotatypes[t])
-static int f2fs_set_qf_name(struct super_block *sb, int qtype,
-			    struct fs_parameter *param)
-{
-	struct f2fs_sb_info *sbi = F2FS_SB(sb);
-	char *qname;
-	int ret = -EINVAL;
-
-	if (sb_any_quota_loaded(sb) && !F2FS_OPTION(sbi).s_qf_names[qtype]) {
-		f2fs_err(sbi, "Cannot change journaled quota options when quota turned on");
-		return -EINVAL;
-	}
-	if (f2fs_sb_has_quota_ino(sbi)) {
-		f2fs_info(sbi, "QUOTA feature is enabled, so ignore qf_name");
-		return 0;
-	}
-
-	qname = kmemdup_nul(param->string, param->size, GFP_KERNEL);
-	if (!qname) {
-		f2fs_err(sbi, "Not enough memory for storing quotafile name");
-		return -ENOMEM;
-	}
-	if (F2FS_OPTION(sbi).s_qf_names[qtype]) {
-		if (strcmp(F2FS_OPTION(sbi).s_qf_names[qtype], qname) == 0)
-			ret = 0;
-		else
-			f2fs_err(sbi, "%s quota file already specified",
-				 QTYPE2NAME(qtype));
-		goto errout;
-	}
-	if (strchr(qname, '/')) {
-		f2fs_err(sbi, "quotafile must be on filesystem root");
-		goto errout;
-	}
-	F2FS_OPTION(sbi).s_qf_names[qtype] = qname;
-	set_opt(sbi, QUOTA);
-	return 0;
-errout:
-	kfree(qname);
-	return ret;
-}
-
-static int f2fs_clear_qf_name(struct super_block *sb, int qtype)
-{
-	struct f2fs_sb_info *sbi = F2FS_SB(sb);
-
-	if (sb_any_quota_loaded(sb) && F2FS_OPTION(sbi).s_qf_names[qtype]) {
-		f2fs_err(sbi, "Cannot change journaled quota options when quota turned on");
-		return -EINVAL;
-	}
-	kfree(F2FS_OPTION(sbi).s_qf_names[qtype]);
-	F2FS_OPTION(sbi).s_qf_names[qtype] = NULL;
-	return 0;
-}
 
 /*
  * Note the name of the specified quota file.
@@ -637,50 +507,6 @@  static int f2fs_unnote_qf_name(struct fs_context *fc, int qtype)
 	return 0;
 }
 
-static int f2fs_check_quota_options(struct f2fs_sb_info *sbi)
-{
-	/*
-	 * We do the test below only for project quotas. 'usrquota' and
-	 * 'grpquota' mount options are allowed even without quota feature
-	 * to support legacy quotas in quota files.
-	 */
-	if (test_opt(sbi, PRJQUOTA) && !f2fs_sb_has_project_quota(sbi)) {
-		f2fs_err(sbi, "Project quota feature not enabled. Cannot enable project quota enforcement.");
-		return -1;
-	}
-	if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
-			F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
-			F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) {
-		if (test_opt(sbi, USRQUOTA) &&
-				F2FS_OPTION(sbi).s_qf_names[USRQUOTA])
-			clear_opt(sbi, USRQUOTA);
-
-		if (test_opt(sbi, GRPQUOTA) &&
-				F2FS_OPTION(sbi).s_qf_names[GRPQUOTA])
-			clear_opt(sbi, GRPQUOTA);
-
-		if (test_opt(sbi, PRJQUOTA) &&
-				F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
-			clear_opt(sbi, PRJQUOTA);
-
-		if (test_opt(sbi, GRPQUOTA) || test_opt(sbi, USRQUOTA) ||
-				test_opt(sbi, PRJQUOTA)) {
-			f2fs_err(sbi, "old and new quota format mixing");
-			return -1;
-		}
-
-		if (!F2FS_OPTION(sbi).s_jquota_fmt) {
-			f2fs_err(sbi, "journaled quota format not specified");
-			return -1;
-		}
-	}
-
-	if (f2fs_sb_has_quota_ino(sbi) && F2FS_OPTION(sbi).s_jquota_fmt) {
-		f2fs_info(sbi, "QUOTA feature is enabled, so ignore jquota_fmt");
-		F2FS_OPTION(sbi).s_jquota_fmt = 0;
-	}
-	return 0;
-}
 #endif
 
 static int f2fs_parse_test_dummy_encryption(const struct fs_parameter *param,
@@ -708,53 +534,6 @@  static int f2fs_parse_test_dummy_encryption(const struct fs_parameter *param,
 	return 0;
 }
 
-static int f2fs_set_test_dummy_encryption(struct super_block *sb,
-					  const struct fs_parameter *param,
-					  bool is_remount)
-{
-	struct f2fs_sb_info *sbi = F2FS_SB(sb);
-	struct fscrypt_dummy_policy *policy =
-		&F2FS_OPTION(sbi).dummy_enc_policy;
-	int err;
-
-	if (!IS_ENABLED(CONFIG_FS_ENCRYPTION)) {
-		f2fs_warn(sbi, "test_dummy_encryption option not supported");
-		return -EINVAL;
-	}
-
-	if (!f2fs_sb_has_encrypt(sbi)) {
-		f2fs_err(sbi, "Encrypt feature is off");
-		return -EINVAL;
-	}
-
-	/*
-	 * This mount option is just for testing, and it's not worthwhile to
-	 * implement the extra complexity (e.g. RCU protection) that would be
-	 * needed to allow it to be set or changed during remount.  We do allow
-	 * it to be specified during remount, but only if there is no change.
-	 */
-	if (is_remount && !fscrypt_is_dummy_policy_set(policy)) {
-		f2fs_warn(sbi, "Can't set test_dummy_encryption on remount");
-		return -EINVAL;
-	}
-
-	err = fscrypt_parse_test_dummy_encryption(param, policy);
-	if (err) {
-		if (err == -EEXIST)
-			f2fs_warn(sbi,
-				  "Can't change test_dummy_encryption on remount");
-		else if (err == -EINVAL)
-			f2fs_warn(sbi, "Value of option \"%s\" is unrecognized",
-				  param->key);
-		else
-			f2fs_warn(sbi, "Error processing option \"%s\" [%d]",
-				  param->key, err);
-		return -EINVAL;
-	}
-	f2fs_warn(sbi, "Test dummy encryption mode enabled");
-	return 0;
-}
-
 #ifdef CONFIG_F2FS_FS_COMPRESSION
 static bool is_compress_extension_exist(struct f2fs_mount_info *info,
 					const char *new_ext, bool is_ext)
@@ -1512,49 +1291,6 @@  static int f2fs_parse_param(struct fs_context *fc, struct fs_parameter *param)
 	return 0;
 }
 
-static int parse_options(struct fs_context *fc, char *options)
-{
-	struct fs_parameter param;
-	char *key;
-	int ret;
-
-	if (!options)
-		goto default_check;
-
-	while ((key = strsep(&options, ",")) != NULL) {
-		if (*key) {
-			size_t v_len = 0;
-			char *value = strchr(key, '=');
-
-			param.type = fs_value_is_flag;
-			param.string = NULL;
-
-			if (value) {
-				if (value == key)
-					continue;
-
-				*value++ = 0;
-				v_len = strlen(value);
-				param.string = kmemdup_nul(value, v_len, GFP_KERNEL);
-				if (!param.string)
-					return -ENOMEM;
-				param.type = fs_value_is_string;
-			}
-
-			param.key = key;
-			param.size = v_len;
-
-			ret = f2fs_parse_param(fc, &param);
-			kfree(param.string);
-			if (ret < 0)
-				return ret;
-		}
-	}
-
-default_check:
-	return f2fs_validate_options(fc);
-}
-
 static int f2fs_validate_options(struct fs_context *fc)
 {
 #ifdef CONFIG_QUOTA