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Date: Wed, 6 Nov 2019 11:14:57 +0100
From: Lukas Czerner <lczerner@...hat.com>
To: linux-ext4@...r.kernel.org
Cc: Theodore Ts'o <tytso@....edu>, David Howells <dhowells@...hat.com>,
Al Viro <viro@...iv.linux.org.uk>
Subject: [PATCH 17/17] ext4: Remove unused code from old mount api
Additionally rename ext4_fill_super_fc to ext4_fill_super
Signed-off-by: Lukas Czerner <lczerner@...hat.com>
---
fs/ext4/super.c | 227 +-----------------------------------------------
1 file changed, 2 insertions(+), 225 deletions(-)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 2f3296e81837..ae7ee4a2c9b6 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -74,12 +74,9 @@ static void ext4_mark_recovery_complete(struct super_block *sb,
static void ext4_clear_journal_err(struct super_block *sb,
struct ext4_super_block *es);
static int ext4_sync_fs(struct super_block *sb, int wait);
-static int ext4_remount(struct super_block *sb, int *flags, char *data);
static int ext4_statfs(struct dentry *dentry, struct kstatfs *buf);
static int ext4_unfreeze(struct super_block *sb);
static int ext4_freeze(struct super_block *sb);
-static struct dentry *ext4_mount(struct file_system_type *fs_type, int flags,
- const char *dev_name, void *data);
static inline int ext2_feature_set_ok(struct super_block *sb);
static inline int ext3_feature_set_ok(struct super_block *sb);
static int ext4_feature_set_ok(struct super_block *sb, int readonly);
@@ -1589,98 +1586,6 @@ static const struct fs_parameter_description ext4_fs_parameters = {
.enums = ext4_param_enums,
};
-static const match_table_t tokens = {
- {Opt_bsd_df, "bsddf"},
- {Opt_minix_df, "minixdf"},
- {Opt_grpid, "grpid"},
- {Opt_grpid, "bsdgroups"},
- {Opt_nogrpid, "nogrpid"},
- {Opt_nogrpid, "sysvgroups"},
- {Opt_resgid, "resgid=%u"},
- {Opt_resuid, "resuid=%u"},
- {Opt_sb, "sb=%u"},
- {Opt_err_cont, "errors=continue"},
- {Opt_err_panic, "errors=panic"},
- {Opt_err_ro, "errors=remount-ro"},
- {Opt_nouid32, "nouid32"},
- {Opt_debug, "debug"},
- {Opt_removed, "oldalloc"},
- {Opt_removed, "orlov"},
- {Opt_user_xattr, "user_xattr"},
- {Opt_nouser_xattr, "nouser_xattr"},
- {Opt_acl, "acl"},
- {Opt_noacl, "noacl"},
- {Opt_noload, "norecovery"},
- {Opt_noload, "noload"},
- {Opt_removed, "nobh"},
- {Opt_removed, "bh"},
- {Opt_commit, "commit=%u"},
- {Opt_min_batch_time, "min_batch_time=%u"},
- {Opt_max_batch_time, "max_batch_time=%u"},
- {Opt_journal_dev, "journal_dev=%u"},
- {Opt_journal_path, "journal_path=%s"},
- {Opt_journal_checksum, "journal_checksum"},
- {Opt_nojournal_checksum, "nojournal_checksum"},
- {Opt_journal_async_commit, "journal_async_commit"},
- {Opt_abort, "abort"},
- {Opt_data_journal, "data=journal"},
- {Opt_data_ordered, "data=ordered"},
- {Opt_data_writeback, "data=writeback"},
- {Opt_data_err_abort, "data_err=abort"},
- {Opt_data_err_ignore, "data_err=ignore"},
- {Opt_offusrjquota, "usrjquota="},
- {Opt_usrjquota, "usrjquota=%s"},
- {Opt_offgrpjquota, "grpjquota="},
- {Opt_grpjquota, "grpjquota=%s"},
- {Opt_jqfmt_vfsold, "jqfmt=vfsold"},
- {Opt_jqfmt_vfsv0, "jqfmt=vfsv0"},
- {Opt_jqfmt_vfsv1, "jqfmt=vfsv1"},
- {Opt_grpquota, "grpquota"},
- {Opt_noquota, "noquota"},
- {Opt_quota, "quota"},
- {Opt_usrquota, "usrquota"},
- {Opt_prjquota, "prjquota"},
- {Opt_barrier, "barrier=%u"},
- {Opt_barrier, "barrier"},
- {Opt_nobarrier, "nobarrier"},
- {Opt_i_version, "i_version"},
- {Opt_dax, "dax"},
- {Opt_stripe, "stripe=%u"},
- {Opt_delalloc, "delalloc"},
- {Opt_warn_on_error, "warn_on_error"},
- {Opt_nowarn_on_error, "nowarn_on_error"},
- {Opt_lazytime, "lazytime"},
- {Opt_nolazytime, "nolazytime"},
- {Opt_debug_want_extra_isize, "debug_want_extra_isize=%u"},
- {Opt_nodelalloc, "nodelalloc"},
- {Opt_removed, "mblk_io_submit"},
- {Opt_removed, "nomblk_io_submit"},
- {Opt_block_validity, "block_validity"},
- {Opt_noblock_validity, "noblock_validity"},
- {Opt_inode_readahead_blks, "inode_readahead_blks=%u"},
- {Opt_journal_ioprio, "journal_ioprio=%u"},
- {Opt_auto_da_alloc, "auto_da_alloc=%u"},
- {Opt_auto_da_alloc, "auto_da_alloc"},
- {Opt_noauto_da_alloc, "noauto_da_alloc"},
- {Opt_dioread_nolock, "dioread_nolock"},
- {Opt_dioread_lock, "dioread_lock"},
- {Opt_discard, "discard"},
- {Opt_nodiscard, "nodiscard"},
- {Opt_init_itable, "init_itable=%u"},
- {Opt_init_itable, "init_itable"},
- {Opt_noinit_itable, "noinit_itable"},
- {Opt_max_dir_size_kb, "max_dir_size_kb=%u"},
- {Opt_test_dummy_encryption, "test_dummy_encryption"},
- {Opt_nombcache, "nombcache"},
- {Opt_nombcache, "no_mbcache"}, /* for backward compatibility */
- {Opt_removed, "check=none"}, /* mount option from ext2/3 */
- {Opt_removed, "nocheck"}, /* mount option from ext2/3 */
- {Opt_removed, "reservation"}, /* mount option from ext2/3 */
- {Opt_removed, "noreservation"}, /* mount option from ext2/3 */
- {Opt_removed, "journal=%u"}, /* mount option from ext2/3 */
- {Opt_err, NULL},
-};
-
#define DEFAULT_JOURNAL_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 3))
static const char deprecated_msg[] =
"Mount option \"%s\" will be removed by %s\n"
@@ -5173,87 +5078,7 @@ static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb,
return err ? err : ret;
}
-static void cleanup_ctx(struct ext4_fs_context *ctx)
-{
- int i;
-
- if (!ctx)
- return;
-
- for (i = 0; i < EXT4_MAXQUOTAS; i++) {
- kfree(ctx->s_qf_names[i]);
- }
-}
-
-static int ext4_fill_super(struct super_block *sb, void *data, int silent)
-{
- struct ext4_fs_context ctx;
- struct ext4_sb_info *sbi;
- struct fs_context fc;
- const char *descr;
- char *orig_data;
- int ret = -ENOMEM;
-
- orig_data = kstrdup(data, GFP_KERNEL);
- if (data && !orig_data)
- return -ENOMEM;
-
- /* Cleanup superblock name */
- strreplace(sb->s_id, '/', '!');
-
- memset(&fc, 0, sizeof(fc));
- memset(&ctx, 0, sizeof(ctx));
- fc.fs_private = &ctx;
-
- ret = parse_options(&fc, (char *) data);
- if (ret < 0)
- goto free_data;
-
- sbi = ext4_alloc_sbi(sb);
- if (!sbi) {
- ret = -ENOMEM;
- goto free_data;
- }
-
- fc.s_fs_info = sbi;
-
- sbi->s_sb_block = 1; /* Default super block location */
- if (ctx.spec & EXT4_SPEC_s_sb_block)
- sbi->s_sb_block = ctx.s_sb_block;
-
- ret = __ext4_fill_super(&fc, sb, silent);
- if (ret < 0)
- goto free_sbi;
-
- if (EXT4_SB(sb)->s_journal) {
- if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA)
- descr = " journalled data mode";
- else if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA)
- descr = " ordered data mode";
- else
- descr = " writeback data mode";
- } else
- descr = "out journal";
-
- if (___ratelimit(&ext4_mount_msg_ratelimit, "EXT4-fs mount"))
- ext4_msg(sb, KERN_INFO, "mounted filesystem with%s. "
- "Opts: %.*s%s%s", descr,
- (int) sizeof(sbi->s_es->s_mount_opts),
- sbi->s_es->s_mount_opts,
- *sbi->s_es->s_mount_opts ? "; " : "", (char *)orig_data);
-
- kfree(orig_data);
- cleanup_ctx(&ctx);
- return 0;
-free_sbi:
- ext4_free_sbi(sbi);
-free_data:
- kfree(orig_data);
- cleanup_ctx(&ctx);
- return ret;
-}
-
-static int ext4_fill_super_fc(struct super_block *sb, struct fs_context *fc)
+static int ext4_fill_super(struct super_block *sb, struct fs_context *fc)
{
struct ext4_fs_context *ctx = fc->fs_private;
struct ext4_sb_info *sbi;
@@ -5286,7 +5111,7 @@ static int ext4_fill_super_fc(struct super_block *sb, struct fs_context *fc)
static int ext4_get_tree(struct fs_context *fc)
{
- return get_tree_bdev(fc, ext4_fill_super_fc);
+ return get_tree_bdev(fc, ext4_fill_super);
}
/*
@@ -6107,48 +5932,6 @@ static int __ext4_remount(struct fs_context *fc, struct super_block *sb,
return err;
}
-static int ext4_remount(struct super_block *sb, int *flags, char *data)
-{
- struct ext4_sb_info *sbi = EXT4_SB(sb);
- struct ext4_fs_context ctx;
- struct fs_context fc;
- char *orig_data;
- int ret;
-
- orig_data = kstrdup(data, GFP_KERNEL);
- if (data && !orig_data)
- return -ENOMEM;
-
- memset(&fc, 0, sizeof(fc));
- memset(&ctx, 0, sizeof(ctx));
-
- fc.fs_private = &ctx;
- fc.purpose = FS_CONTEXT_FOR_RECONFIGURE;
- fc.s_fs_info = sbi;
-
- ret = parse_options(&fc, (char *) data);
- if (ret < 0)
- goto err_out;
-
- ret = ext4_check_opt_consistency(&fc, sb);
- if (ret < 0)
- goto err_out;
-
- ret = __ext4_remount(&fc, sb, flags);
- if (ret < 0)
- goto err_out;
-
- ext4_msg(sb, KERN_INFO, "re-mounted. Opts: %s", orig_data);
- cleanup_ctx(&ctx);
- kfree(orig_data);
- return 0;
-
-err_out:
- cleanup_ctx(&ctx);
- kfree(orig_data);
- return ret;
-}
-
static int ext4_reconfigure(struct fs_context *fc)
{
struct super_block *sb = fc->root->d_sb;
@@ -6670,12 +6453,6 @@ static int ext4_get_next_id(struct super_block *sb, struct kqid *qid)
}
#endif
-static struct dentry *ext4_mount(struct file_system_type *fs_type, int flags,
- const char *dev_name, void *data)
-{
- return mount_bdev(fs_type, flags, dev_name, data, ext4_fill_super);
-}
-
#if !defined(CONFIG_EXT2_FS) && !defined(CONFIG_EXT2_FS_MODULE) && defined(CONFIG_EXT4_USE_FOR_EXT2)
static inline void register_as_ext2(void)
{
--
2.21.0
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