linux-kernel - Re: [RFC/PATCH] revoke/frevoke system calls

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Date:	Fri, 21 Jul 2006 17:19:22 -0700
From:	Andrew Morton <akpm@...l.org>
To:	Pekka J Enberg <penberg@...Helsinki.FI>
Cc:	alan@...rguk.ukuu.org.uk, tytso@....edu,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [RFC/PATCH] revoke/frevoke system calls

On Thu, 20 Jul 2006 15:07:30 +0300 (EEST)
Pekka J Enberg <penberg@...Helsinki.FI> wrote:

> From: Pekka Enberg <penberg@...helsinki.fi>
> 
> This patch implements the revoke(2) and frevoke(2) system calls for all
> types of files.
>
> ...
>
> -	file = fget_light(fd, &fput_needed);
> +	file = fget(fd);

This is sad.

> +static int revoke_files(struct task_struct *owner, struct inode *inode,
> +			struct file *exclude, struct list_head *to_close)
> +{
> ...
> +	spin_lock(&files->file_lock);
> ...
> +		revoked = kmalloc(sizeof(*revoked), GFP_KERNEL);

This is bad.
-
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