ext4: remove /proc tuning knobs

Remove tuning knobs in /proc/fs/ext4/<dev/* since they have been
replaced by knobs in sysfs at /sys/fs/ext4/<dev>/*.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

1 files changed, 0 insertions, 46 deletions

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 2883d4318c2..1ec554cc107 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -579,7 +579,6 @@ static void ext4_put_super(struct super_block *sb)
                 ext4_commit_super(sb, es, 1);
         }
         if (sbi->s_proc) {
-                remove_proc_entry("inode_readahead_blks", sbi->s_proc);
                 remove_proc_entry(sb->s_id, ext4_proc_root);
         }
         kobject_del(&sbi->s_kobj);
@@ -2529,11 +2528,6 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
 #ifdef CONFIG_PROC_FS
         if (ext4_proc_root)
                 sbi->s_proc = proc_mkdir(sb->s_id, ext4_proc_root);
-
-        if (sbi->s_proc)
-                proc_create_data("inode_readahead_blks", 0644, sbi->s_proc,
-                                 &ext4_ui_proc_fops,
-                                 &sbi->s_inode_readahead_blks);
 #endif
 
         bgl_lock_init(sbi->s_blockgroup_lock);
@@ -2832,7 +2826,6 @@ failed_mount2:
         kfree(sbi->s_group_desc);
 failed_mount:
         if (sbi->s_proc) {
-                remove_proc_entry("inode_readahead_blks", sbi->s_proc);
                 remove_proc_entry(sb->s_id, ext4_proc_root);
         }
 #ifdef CONFIG_QUOTA
@@ -3865,45 +3858,6 @@ static int ext4_get_sb(struct file_system_type *fs_type,
         return get_sb_bdev(fs_type, flags, dev_name, data, ext4_fill_super, mnt);
 }
 
-#ifdef CONFIG_PROC_FS
-static int ext4_ui_proc_show(struct seq_file *m, void *v)
-{
-        unsigned int *p = m->private;
-
-        seq_printf(m, "%u\n", *p);
-        return 0;
-}
-
-static int ext4_ui_proc_open(struct inode *inode, struct file *file)
-{
-        return single_open(file, ext4_ui_proc_show, PDE(inode)->data);
-}
-
-static ssize_t ext4_ui_proc_write(struct file *file, const char __user *buf,
-                               size_t cnt, loff_t *ppos)
-{
-        unsigned long *p = PDE(file->f_path.dentry->d_inode)->data;
-        char str[32];
-
-        if (cnt >= sizeof(str))
-                return -EINVAL;
-        if (copy_from_user(str, buf, cnt))
-                return -EFAULT;
-
-        *p = simple_strtoul(str, NULL, 0);
-        return cnt;
-}
-
-const struct file_operations ext4_ui_proc_fops = {
-        .owner          = THIS_MODULE,
-        .open           = ext4_ui_proc_open,
-        .read           = seq_read,
-        .llseek         = seq_lseek,
-        .release        = single_release,
-        .write          = ext4_ui_proc_write,
-};
-#endif
-
 static struct file_system_type ext4_fs_type = {
         .owner          = THIS_MODULE,
         .name           = "ext4",