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Date:	Thu, 17 Jan 2008 17:32:16 +0530
From:	"Aneesh Kumar K.V" <>
To:	Valerie Clement <>
Cc:	Mingming Cao <>,
	linux-ext4 <>
Subject: Re: [PATCH] Fix oops in mballoc caused by a variable overflow

On Thu, Jan 17, 2008 at 10:43:40AM +0100, Valerie Clement wrote:
> Aneesh Kumar K.V wrote:
>> What about this  ? I guess we will overflow start = start << bsbits;
> Hi Aneesh,
> your patch below doesn't fix the issue, because as start_off is also  
> loff_t, start_off = ac->ac_o_ex.fe_logical << bsbits  also overflows.

loff_t is 64 bits.

typedef long long       __kernel_loff_t;
typedef __u32 ext4_lblk_t;

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