linux-ext4 - Re: [RFC PATCH 1/3] ext4: check for out-of-order index extents in ext4_valid_extent

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Date:   Thu, 7 Oct 2021 12:44:28 -0400
From:   "Theodore Ts'o" <tytso@....edu>
To:     Zhang Yi <yi.zhang@...wei.com>
Cc:     linux-ext4@...r.kernel.org, adilger.kernel@...ger.ca, jack@...e.cz,
        yukuai3@...wei.com
Subject: Re: [RFC PATCH 1/3] ext4: check for out-of-order index extents in
 ext4_valid_extent_entries()

On Wed, Sep 08, 2021 at 08:08:48PM +0800, Zhang Yi wrote:
> After commit 5946d089379a ("ext4: check for overlapping extents in
> ext4_valid_extent_entries()"), we can check out the overlapping extent
> entry in leaf extent blocks. But the out-of-order extent entry in index
> extent blocks could also trigger bad things if the filesystem is
> inconsistent. So this patch add a check to figure out the out-of-order
> index extents and return error.
> 
> Signed-off-by: Zhang Yi <yi.zhang@...wei.com>

Looks good,

Reviewed-by: Theodore Ts'o <tytso@....edu>