linux-ext4 - Re: [PATCH] ext2: fix error msg when mounting fs with too-large blocksize

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <4DB3CE9F.1020201@gmail.com>
Date:	Sun, 24 Apr 2011 15:17:51 +0800
From:	Coly Li <colyli@...il.com>
To:	Robin Dong <sanbai@...bao.com>
CC:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH] ext2: fix error msg when mounting fs with too-large blocksize

On 2011年04月24日 14:36, Robin Dong Wrote:
> From: Robin Dong <sanbai@...bao.com>
> 
> When ext2 mounts a filesystem, it attempts to set the block device
> blocksize with a call to sb_set_blocksize, which can fail for
> several reasons.  The current failure message in ext2 prints:
> 
>   EXT2-fs (loop1): error: blocksize is too small
> 
> which is not correct in all cases.  This can be demonstrated
> by creating a filesystem with
> 
>   # mkfs.ext2 -b 8192
> 
> on a 4k page system, and attempting to mount it.
> 
> Change the error message to a more generic:
> 
>   EXT2-fs (loop1): bad blocksize 8192
> 
> to match the error message in ext3.
> 

Reviewed-by: Coly Li <bosong.ly@...bao.com>


> Signed-off-by: Robin Dong <sanbai@...bao.com>
> ---
>  fs/ext2/super.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
> 
> diff --git a/fs/ext2/super.c b/fs/ext2/super.c
> index 0a78dae..1dd62ed 100644
> --- a/fs/ext2/super.c
> +++ b/fs/ext2/super.c
> @@ -898,7 +898,8 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
>  		brelse(bh);
>  
>  		if (!sb_set_blocksize(sb, blocksize)) {
> -			ext2_msg(sb, KERN_ERR, "error: blocksize is too small");
> +			ext2_msg(sb, KERN_ERR,
> +				"error: bad blocksize %d", blocksize);
>  			goto failed_sbi;
>  		}
>  

--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html