linux-ext4 - Re: prevent parallel resizers and fix some error handling in resize

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Message-ID: <CAGBYx2YxnOSJTM78pJNNjjVf7DfWktx04v9HDReqWMXpqOxKRQ@mail.gmail.com>
Date:	Mon, 18 Jul 2011 18:16:07 +0800
From:	Yongqiang Yang <xiaoqiangnk@...il.com>
To:	Amir Goldstein <amir73il@...il.com>
Cc:	linux-ext4@...r.kernel.org, aedilger@...il.com
Subject: Re: prevent parallel resizers and fix some error handling in resize

On Mon, Jul 18, 2011 at 2:16 PM, Amir Goldstein <amir73il@...il.com> wrote:
> On Mon, Jul 18, 2011 at 5:52 AM, Yongqiang Yang <xiaoqiangnk@...il.com> wrote:
>> Hi,
>>
>>  This patch series prevents parallel resizer and fixes some error handling in
>> resize code.  Besides these, some code is simplified so that the code can be
>> used easily in new resize implementation.
>
> You should probably mention that "new resize implementation" means:
> let the kernel do all the resize work, gaining fast multi group resize,
> flex_bg layout, and uninit block groups.
> The new kernel resize implementation also prepares the ground for
> supporting resize with features like big_alloc, 64bit and exclude_bitmap.
>
> You should probably also mention that you have already completed the
> "new resize implementation" and that you will post it shortly ;-)
Thank you for pointing it out:-)

Yongqiang.
>
>>
>>  The patches are tested by resize2fs and e2fsck -fn.
>>
>> [PATCH 01/12] ext4: prevent parallel resizers by atomic bit ops
>> [PATCH 02/12] ext4: prevent a fs with errors from being resized
>> [PATCH 03/12] ext4: prevent a fs without journal from being resized
>> [PATCH 04/12] ext4: rename ext4_add_groupblocks() to
>> [PATCH 05/12] ext4: let ext4_group_add_blocks return an error code
>> [PATCH 06/12] ext4: let ext4_group_add_blocks() handle 0 blocks
>> [PATCH 07/12] ext4: fix a typo in ext4_group_extend()
>> [PATCH 08/12] ext4: let setup_new_group_blocks set multi-bits each
>> [PATCH 09/12] ext4: simplify journal handling in
>> [PATCH 10/12] ext4: remove lock_buffer in bclean() and
>> [PATCH 11/12] ext4: simplify parameters of add_new_gdb()
>> [PATCH 12/12] ext4: simplify parameters of reserve_backup_gdb()
>>
>> --
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>



-- 
Best Wishes
Yongqiang Yang
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