f2fs: clean up sysfs codes
Just cleanup. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu
Jaegeuk Kim
Родитель
56412894b3
Коммит
a398101aa1
121
fs/f2fs/super.c
121
fs/f2fs/super.c
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@ -349,6 +349,22 @@ static struct kobj_type f2fs_ktype = {
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.release = f2fs_sb_release,
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};
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int __init f2fs_register_sysfs(void)
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{
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f2fs_proc_root = proc_mkdir("fs/f2fs", NULL);
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f2fs_kset = kset_create_and_add("f2fs", NULL, fs_kobj);
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if (!f2fs_kset)
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return -ENOMEM;
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return 0;
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}
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void f2fs_unregister_sysfs(void)
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{
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kset_unregister(f2fs_kset);
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remove_proc_entry("fs/f2fs", NULL);
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}
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void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...)
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{
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struct va_format vaf;
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@ -766,17 +782,23 @@ static void destroy_device_list(struct f2fs_sb_info *sbi)
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kfree(sbi->devs);
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}
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static void f2fs_put_super(struct super_block *sb)
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void f2fs_exit_sysfs(struct f2fs_sb_info *sbi)
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{
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struct f2fs_sb_info *sbi = F2FS_SB(sb);
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int i;
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kobject_del(&sbi->s_kobj);
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kobject_put(&sbi->s_kobj);
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wait_for_completion(&sbi->s_kobj_unregister);
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if (sbi->s_proc) {
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remove_proc_entry("segment_info", sbi->s_proc);
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remove_proc_entry("segment_bits", sbi->s_proc);
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remove_proc_entry(sb->s_id, f2fs_proc_root);
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remove_proc_entry(sbi->sb->s_id, f2fs_proc_root);
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}
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kobject_del(&sbi->s_kobj);
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}
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static void f2fs_put_super(struct super_block *sb)
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{
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struct f2fs_sb_info *sbi = F2FS_SB(sb);
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int i;
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stop_gc_thread(sbi);
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@ -829,8 +851,8 @@ static void f2fs_put_super(struct super_block *sb)
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destroy_segment_manager(sbi);
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kfree(sbi->ckpt);
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kobject_put(&sbi->s_kobj);
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wait_for_completion(&sbi->s_kobj_unregister);
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f2fs_exit_sysfs(sbi);
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sb->s_fs_info = NULL;
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if (sbi->s_chksum_driver)
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@ -1058,6 +1080,37 @@ static const struct file_operations f2fs_seq_##_name##_fops = { \
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F2FS_PROC_FILE_DEF(segment_info);
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F2FS_PROC_FILE_DEF(segment_bits);
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int f2fs_init_sysfs(struct f2fs_sb_info *sbi)
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{
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struct super_block *sb = sbi->sb;
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int err;
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if (f2fs_proc_root)
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sbi->s_proc = proc_mkdir(sb->s_id, f2fs_proc_root);
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if (sbi->s_proc) {
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proc_create_data("segment_info", S_IRUGO, sbi->s_proc,
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&f2fs_seq_segment_info_fops, sb);
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proc_create_data("segment_bits", S_IRUGO, sbi->s_proc,
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&f2fs_seq_segment_bits_fops, sb);
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}
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sbi->s_kobj.kset = f2fs_kset;
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init_completion(&sbi->s_kobj_unregister);
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err = kobject_init_and_add(&sbi->s_kobj, &f2fs_ktype, NULL,
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"%s", sb->s_id);
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if (err)
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goto err_out;
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return 0;
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err_out:
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if (sbi->s_proc) {
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remove_proc_entry("segment_info", sbi->s_proc);
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remove_proc_entry("segment_bits", sbi->s_proc);
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remove_proc_entry(sb->s_id, f2fs_proc_root);
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}
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return err;
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}
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static void default_options(struct f2fs_sb_info *sbi)
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{
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/* init some FS parameters */
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@ -2114,22 +2167,9 @@ try_onemore:
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goto free_root_inode;
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}
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if (f2fs_proc_root)
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sbi->s_proc = proc_mkdir(sb->s_id, f2fs_proc_root);
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if (sbi->s_proc) {
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proc_create_data("segment_info", S_IRUGO, sbi->s_proc,
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&f2fs_seq_segment_info_fops, sb);
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proc_create_data("segment_bits", S_IRUGO, sbi->s_proc,
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&f2fs_seq_segment_bits_fops, sb);
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}
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sbi->s_kobj.kset = f2fs_kset;
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init_completion(&sbi->s_kobj_unregister);
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err = kobject_init_and_add(&sbi->s_kobj, &f2fs_ktype, NULL,
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"%s", sb->s_id);
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err = f2fs_init_sysfs(sbi);
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if (err)
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goto free_proc;
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goto free_root_inode;
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/* recover fsynced data */
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if (!test_opt(sbi, DISABLE_ROLL_FORWARD)) {
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@ -2140,7 +2180,7 @@ try_onemore:
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if (bdev_read_only(sb->s_bdev) &&
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!is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) {
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err = -EROFS;
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goto free_kobj;
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goto free_sysfs;
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}
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if (need_fsck)
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@ -2154,7 +2194,7 @@ try_onemore:
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need_fsck = true;
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f2fs_msg(sb, KERN_ERR,
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"Cannot recover all fsync data errno=%d", err);
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goto free_kobj;
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goto free_sysfs;
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}
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} else {
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err = recover_fsync_data(sbi, true);
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@ -2163,7 +2203,7 @@ try_onemore:
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err = -EINVAL;
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f2fs_msg(sb, KERN_ERR,
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"Need to recover fsync data");
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goto free_kobj;
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goto free_sysfs;
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}
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}
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skip_recovery:
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@ -2178,7 +2218,7 @@ skip_recovery:
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/* After POR, we can run background GC thread.*/
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err = start_gc_thread(sbi);
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if (err)
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goto free_kobj;
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goto free_sysfs;
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}
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kfree(options);
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@ -2196,17 +2236,9 @@ skip_recovery:
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f2fs_update_time(sbi, REQ_TIME);
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return 0;
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free_kobj:
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free_sysfs:
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f2fs_sync_inode_meta(sbi);
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kobject_del(&sbi->s_kobj);
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kobject_put(&sbi->s_kobj);
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wait_for_completion(&sbi->s_kobj_unregister);
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free_proc:
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if (sbi->s_proc) {
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remove_proc_entry("segment_info", sbi->s_proc);
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remove_proc_entry("segment_bits", sbi->s_proc);
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remove_proc_entry(sb->s_id, f2fs_proc_root);
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}
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f2fs_exit_sysfs(sbi);
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free_root_inode:
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dput(sb->s_root);
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sb->s_root = NULL;
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@ -2321,30 +2353,26 @@ static int __init init_f2fs_fs(void)
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err = create_extent_cache();
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if (err)
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goto free_checkpoint_caches;
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f2fs_kset = kset_create_and_add("f2fs", NULL, fs_kobj);
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if (!f2fs_kset) {
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err = -ENOMEM;
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err = f2fs_register_sysfs();
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if (err)
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goto free_extent_cache;
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}
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err = register_shrinker(&f2fs_shrinker_info);
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if (err)
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goto free_kset;
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goto free_sysfs;
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err = register_filesystem(&f2fs_fs_type);
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if (err)
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goto free_shrinker;
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err = f2fs_create_root_stats();
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if (err)
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goto free_filesystem;
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f2fs_proc_root = proc_mkdir("fs/f2fs", NULL);
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return 0;
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free_filesystem:
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unregister_filesystem(&f2fs_fs_type);
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free_shrinker:
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unregister_shrinker(&f2fs_shrinker_info);
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free_kset:
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kset_unregister(f2fs_kset);
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free_sysfs:
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f2fs_unregister_sysfs();
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free_extent_cache:
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destroy_extent_cache();
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free_checkpoint_caches:
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@ -2361,11 +2389,10 @@ fail:
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static void __exit exit_f2fs_fs(void)
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{
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remove_proc_entry("fs/f2fs", NULL);
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f2fs_destroy_root_stats();
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unregister_filesystem(&f2fs_fs_type);
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unregister_shrinker(&f2fs_shrinker_info);
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kset_unregister(f2fs_kset);
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f2fs_unregister_sysfs();
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destroy_extent_cache();
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destroy_checkpoint_caches();
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destroy_segment_manager_caches();
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