linux-kernel - Re: [PATCH 2/2] Updating ctime and mtime at syncing

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Date:	Tue, 15 Jan 2008 18:04:55 +0000
From:	Christoph Hellwig <hch@...radead.org>
To:	Anton Salikhmetov <salikhmetov@...il.com>
Cc:	linux-mm@...ck.org, jakob@...hought.net,
	linux-kernel@...r.kernel.org, valdis.kletnieks@...edu,
	riel@...hat.com, ksm@...dk, staubach@...hat.com,
	jesper.juhl@...il.com, torvalds@...ux-foundation.org,
	a.p.zijlstra@...llo.nl, akpm@...ux-foundation.org,
	protasnb@...il.com, miklos@...redi.hu
Subject: Re: [PATCH 2/2] Updating ctime and mtime at syncing

On Tue, Jan 15, 2008 at 07:02:45PM +0300, Anton Salikhmetov wrote:
> +/*
> + * Update the ctime and mtime stamps for memory-mapped block device files.
> + */
> +static void bd_inode_update_time(struct inode *inode, struct timespec *ts)
> +{
> +	struct block_device *bdev = inode->i_bdev;
> +	struct list_head *p;
> +
> +	if (bdev == NULL)
> +		return;

inode->i_bdev is never NULL for inodes currently beeing written to.

> +
> +	mutex_lock(&bdev->bd_mutex);
> +	list_for_each(p, &bdev->bd_inodes) {
> +		inode = list_entry(p, struct inode, i_devices);

this should use list_for_each_entry.

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