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From: "Christoph Lameter (Open Source)" <cl@linux.com>
To: Shuah Khan <shuah.khan@hp.com>
Cc: penberg@kernel.org, glommer@parallels.com, js1304@gmail.com,
	David Rientjes <rientjes@google.com>,
	linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	shuahkhan@gmail.com
Subject: Re: [PATCH v2] mm: Restructure kmem_cache_create() to move debug cache integrity checks into a new function
Date: Thu, 9 Aug 2012 09:13:06 -0500 (CDT)	[thread overview]
Message-ID: <alpine.DEB.2.02.1208090911100.15909@greybox.home> (raw)
In-Reply-To: <1344287631.2486.57.camel@lorien2>

On Mon, 6 Aug 2012, Shuah Khan wrote:

> +#ifdef CONFIG_DEBUG_VM
> +static int kmem_cache_sanity_check(const char *name, size_t size)

Why do we pass "size" in? AFAICT there is no need to.

> @@ -53,48 +93,17 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size, size_t align
>  {
>  	struct kmem_cache *s = NULL;
>
> -#ifdef CONFIG_DEBUG_VM
>  	if (!name || in_interrupt() || size < sizeof(void *) ||
>  		size > KMALLOC_MAX_SIZE) {
> -		printk(KERN_ERR "kmem_cache_create(%s) integrity check"
> -			" failed\n", name);
> +		pr_err("kmem_cache_create(%s) integrity check failed\n", name);
>  		goto out;
>  	}
> -#endif
>

If you move the above code into the sanity check function then you will be
using the size as well. These are also sanity checks after all.

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  parent reply	other threads:[~2012-08-09 14:20 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-13 23:12 [PATCH TRIVIAL] mm: Fix build warning in kmem_cache_create() Shuah Khan
2012-07-14  9:18 ` David Rientjes
2012-07-14 12:01   ` Pekka Enberg
2012-07-16  3:04     ` Shuah Khan
2012-07-16  9:58       ` David Rientjes
2012-07-16 14:17         ` Christoph Lameter
2012-07-16 15:56           ` Shuah Khan
2012-07-16 19:58           ` David Rientjes
2012-07-16 20:14             ` Christoph Lameter
2012-07-16 23:48               ` David Rientjes
2012-07-17 14:36                 ` Christoph Lameter
2012-07-17 14:46                   ` Pekka Enberg
2012-07-17 15:11                     ` Christoph Lameter
2012-07-23  7:04                       ` Glauber Costa
2012-07-25 15:28                         ` Christoph Lameter
2012-07-17 16:52                     ` Shuah Khan
2012-07-30 10:18 ` Pekka Enberg
2012-07-30 19:56   ` David Rientjes
2012-07-30 20:41     ` Pekka Enberg
2012-07-31  2:07       ` David Rientjes
2012-07-31  6:05         ` Pekka Enberg
2012-08-06  3:41   ` Shuah Khan
2012-08-06 15:14     ` [PATCH RESEND] mm: Restructure kmem_cache_create() to move debug cache integrity checks into a new function Shuah Khan
2012-08-06 16:49       ` JoonSoo Kim
2012-08-06 17:03         ` Shuah Khan
2012-08-06 21:13           ` [PATCH v2] " Shuah Khan
2012-08-09 14:06             ` Shuah Khan
2012-08-09 14:13             ` Christoph Lameter (Open Source) [this message]
2012-08-09 17:01               ` Shuah Khan
2012-08-09 19:08                 ` Christoph Lameter (Open Source)
2012-08-09 19:33                   ` Shuah Khan
2012-08-12 16:40                     ` [PATCH v3] " Shuah Khan
2012-08-12 17:36                       ` Christoph
2012-08-15 23:53                       ` Andrew Morton
2012-08-16  6:40                         ` Pekka Enberg
2012-08-08 14:14           ` [PATCH RESEND] " Christoph Lameter (Open Source)
2012-08-08 15:13             ` Shuah Khan

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