linux-kernel - Re: [PATCH 09/18] fs: Introduce per-bucket inode hash locks

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Message-ID: <20101013150547.GA12757@infradead.org>
Date:	Wed, 13 Oct 2010 11:05:47 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Dave Chinner <david@...morbit.com>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 09/18] fs: Introduce per-bucket inode hash locks

> +
> +/**
> + * hlist_bl_lock	- lock a hash list
> + * @h:	hash list head to lock
> + */
> +static inline void hlist_bl_lock(struct hlist_bl_head *h)
> +{
> +	bit_spin_lock(0, (unsigned long *)h);
> +}
> +
> +/**
> + * hlist_bl_unlock	- unlock a hash list
> + * @h:	hash list head to unlock
> + */
> +static inline void hlist_bl_unlock(struct hlist_bl_head *h)
> +{
> +	__bit_spin_unlock(0, (unsigned long *)h);
> +}

I think the locking helpers should come with the rest of the bl_list
implementation in patch1.
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