linux-kernel - Re: [PATCH 18/27] xfs: Convert to new freezing code

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Message-ID: <20120612142346.GA25132@infradead.org>
Date:	Tue, 12 Jun 2012 10:23:47 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Jan Kara <jack@...e.cz>
Cc:	Al Viro <viro@...IV.linux.org.uk>, Alex Elder <elder@...nel.org>,
	linux-fsdevel@...e.cz, LKML <linux-kernel@...r.kernel.org>,
	xfs@....sgi.com, Ben Myers <bpm@....com>
Subject: Re: [PATCH 18/27] xfs: Convert to new freezing code

> +	 * We will pass freeze protection with a transaction.  So tell lockdep
> +	 * we released it.
> +	 */
> +	rwsem_release(&ioend->io_inode->i_sb->s_writers.lock_map[SB_FREEZE_FS-1],
> +		      1, _THIS_IP_);

I'll need some time to get through the whole series, but repeated use
of constructs like this really screams for a helper abstracting it out
and documenting it.

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