linux-ext4 - Re: [PATCH] Validate extent details only when read from the disk

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Date:	Mon, 09 Feb 2009 11:31:46 +0100
From:	Thiemo Nagel <thiemo.nagel@...tum.de>
To:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
CC:	tytso@....edu, linux-ext4@...r.kernel.org
Subject: Re: [PATCH] Validate extent details only when read from the disk

Aneesh Kumar K.V wrote:
> Make sure we validate extent details only when read from the disk.
>
> @@ -602,15 +607,13 @@ struct ext4_ext_path *
>  ext4_ext_find_extent(struct inode *inode, ext4_lblk_t block,
>  					struct ext4_ext_path *path)
>  {
> +	int need_to_validate = 0;
>  	struct ext4_extent_header *eh;
>  	struct buffer_head *bh;
>  	short int depth, i, ppos = 0, alloc = 0;
>  
>  	eh = ext_inode_hdr(inode);
>  	depth = ext_depth(inode);
> -	if (ext4_ext_check(inode, eh, depth))
> -		return ERR_PTR(-EIO);
> -

This check needs to stay in.

Kind regards,

Thiemo

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+-----------------------------------+--------------------------+
| Dipl.-Phys. Thiemo Nagel          |                          |
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| Physik-Department E18             |                          |
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