Re: [PATCH 2/14] HPFS: Introduce a global mutex and lock it on everycallback from VFS.

[Christoph Hellwig]

>  static inline void hpfs_lock(struct super_block *s)
>  {
> +	struct hpfs_sb_info *sbi = hpfs_sb(s);
> +	mutex_lock(&sbi->hpfs_mutex);
>  }
>  
>  static inline void hpfs_unlock(struct super_block *s)
>  {
> +	struct hpfs_sb_info *sbi = hpfs_sb(s);
> +	mutex_unlock(&sbi->hpfs_mutex);
> +}
> +
> +static inline void hpfs_lock_assert(struct super_block *s)
> +{
> +	struct hpfs_sb_info *sbi = hpfs_sb(s);
> +	WARN_ON(!mutex_is_locked(&sbi->hpfs_mutex));
>  }

These locks just obsfucate what's going on.  Just call the mutex
helpers directly.

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