linux-kernel - Re: [PATCH V10 5/6] mm: cleancache: update to match akpm frontswap feedback

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Date:	Wed, 28 Sep 2011 15:08:41 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	Dan Magenheimer <dan.magenheimer@...cle.com>
Cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org, jeremy@...p.org,
	hughd@...gle.com, ngupta@...are.org, konrad.wilk@...cle.com,
	JBeulich@...ell.com, kurt.hackel@...cle.com, npiggin@...nel.dk,
	akpm@...ux-foundation.org, riel@...hat.com, hannes@...xchg.org,
	matthew@....cx, chris.mason@...cle.com,
	sjenning@...ux.vnet.ibm.com, jackdachef@...il.com,
	cyclonusj@...il.com, levinsasha928@...il.com
Subject: Re: [PATCH V10 5/6] mm: cleancache: update to match akpm frontswap
 feedback

On Thu, 15 Sep 2011 14:34:46 -0700
Dan Magenheimer <dan.magenheimer@...cle.com> wrote:

> From: Dan Magenheimer <dan.magenheimer@...cle.com>
> Subject: [PATCH V10 5/6] mm: cleancache: update to match akpm frontswap feedback
	err = sysfs_create_group(mm_kobj, &cleancache_attr_group);
> -#endif /* CONFIG_SYSFS */
> +#ifdef CONFIG_DEBUG_FS
> +	struct dentry *root = debugfs_create_dir("cleancache", NULL);
> +	if (root == NULL)
> +		return -ENXIO;
> +	debugfs_create_u64("succ_gets", S_IRUGO, root, &cleancache_succ_gets);
> +	debugfs_create_u64("failed_gets", S_IRUGO,
> +				root, &cleancache_failed_gets);
> +	debugfs_create_u64("puts", S_IRUGO, root, &cleancache_puts);
> +	debugfs_create_u64("invalidates", S_IRUGO,
> +				root, &cleancache_invalidates);
> +#endif

No exisiting userlands are affected by this change of flush->invalidates ?

Thanks,
-Kame

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