linux-kernel - Re: [PATCH V9 5/6] mm: cleancache: update to match akpm frontswap feedback

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Message-ID: <4E6FC109.5090608@linux.vnet.ibm.com>
Date:	Tue, 13 Sep 2011 15:46:01 -0500
From:	Seth Jennings <sjenning@...ux.vnet.ibm.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,
	kamezawa.hiroyu@...fujitsu.com, jackdachef@...il.com,
	cyclonusj@...il.com, levinsasha928@...il.com
Subject: Re: [PATCH V9 5/6] mm: cleancache: update to match akpm frontswap
 feedback

Hey Dan,

Same typecasting needed here:

mm/cleancache.c: In function ‘init_cleancache’:
mm/cleancache.c:214:5: warning: passing argument 4 of ‘debugfs_create_size_t’ from incompatible pointer type
include/linux/debugfs.h:68:16: note: expected ‘size_t *’ but argument is of type ‘long unsigned int *’
mm/cleancache.c:216:5: warning: passing argument 4 of ‘debugfs_create_size_t’ from incompatible pointer type
include/linux/debugfs.h:68:16: note: expected ‘size_t *’ but argument is of type ‘long unsigned int *’
mm/cleancache.c:218:5: warning: passing argument 4 of ‘debugfs_create_size_t’ from incompatible pointer type
include/linux/debugfs.h:68:16: note: expected ‘size_t *’ but argument is of type ‘long unsigned int *’

On 09/13/2011 12:41 PM, Dan Magenheimer wrote:
> +#ifdef CONFIG_DEBUG_FS
> +	struct dentry *root = debugfs_create_dir("cleancache", NULL);
> +	if (root == NULL)
> +		return -ENXIO;
> +	debugfs_create_size_t("succ_gets", S_IRUGO,
> +				root, &cleancache_succ_gets);
> +	debugfs_create_size_t("failed_gets", S_IRUGO,
> +				root, &cleancache_failed_gets);
> +	debugfs_create_size_t("puts", S_IRUGO,
> +				root, &cleancache_puts);
> +	debugfs_create_size_t("invalidates", S_IRUGO,
> +				root, &cleancache_invalidates);
> +#endif

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