Subject: Re: p = kmalloc(sizeof(*p), )
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Al Viro <viro@ftp.linux.org.uk>
Cc: Linus Torvalds <torvalds@osdl.org>, Willy Tarreau <willy@w.ods.org>,
       Robert Love <rml@novell.com>, Russell King <rmk+lkml@arm.linux.org.uk>,
       Linux Kernel List <linux-kernel@vger.kernel.org>
In-Reply-To: <20050918190714.GO19626@ftp.linux.org.uk>
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	 <20050918190714.GO19626@ftp.linux.org.uk>
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Date: Sun, 18 Sep 2005 22:30:26 +0100
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> It would be very useful when e.g. tracking down improper uses of
> struct file, struct dentry, etc. - stuff that should always be
> allocated by one helper function.  Same goes for e.g. net_device -

Another useful trick here btw is to make such objects contain (when
debugging)

	void *magic_ptr;

which is initialised as foo->magic_ptr = foo;

That catches anyone copying them and tells you what got copied

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