linux-kernel - Re: [PATCH v3] ext4: initialize multi-block allocator before checking block descriptors

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Message-ID: <20140212162904.GD14520@thunk.org>
Date:	Wed, 12 Feb 2014 11:29:04 -0500
From:	Theodore Ts'o <tytso@....edu>
To:	Azat Khuzhin <a3at.mail@...il.com>
Cc:	linux-ext4@...r.kernel.org,
	Andreas Dilger <adilger.kernel@...ger.ca>,
	open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] ext4: initialize multi-block allocator before
 checking block descriptors

On Tue, Feb 11, 2014 at 06:24:12PM +0400, Azat Khuzhin wrote:
> With EXT4FS_DEBUG ext4_count_free_clusters() will call
> ext4_read_block_bitmap() without s_group_info initialized, so we need to
> initialize multi-block allocator before.
> 
> And we can't initialize multi-block allocator without group descriptors,
> since it use them.
> Also we need to install s_op before initializing multi-block allocator,
> because in ext4_mb_init_backend() new inode is created.

Applied, thanks.

					- Ted
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