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Date:	Tue, 25 Nov 2008 17:06:54 +0900
From:	Toshiyuki Okajima <>
To:	Theodore Tso <tytso@....EDU>
Subject: Re: [RESEND][PATCH 0/3 BUG,RFC] release block-device-mapping	buffer_heads
 which have the filesystem private data for avoiding	oom-killer

Thanks for your applying.

Theodore Tso wrote:
> Okajima-san,
> I've added your patches to the ext4 patch queue for testing.  I did
> make some changes to the commit descriptions for clarity's sake
> -------------------------
> vfs: add releasepages hooks to block devices which can be used by file systems
> -------------------------
> ext3: provide function to release journal heads under memory pressure
> -------------------------
> ext4: implement release_metadata to release private data under memory pressure
> ----------------------
> Also, in the 2nd and 3rd patches, I made change to the comment
> describing ext[34]_release_metadata.  It now reads:
> /*
>  * Try to release metadata pages (indirect blocks, directories) which are
>  * mapped via the block device.  Since these pages could have journal heads
>  * which would prevent try_to_free_buffers() from freeing them, we must use
>  * jbd[2] layer's try_to_free_buffers() function to release them.
>  */
> I hope you agree these changes are more descriptive of what is going
> on in the patch.

I agree to your all appropriate changes.

(I am looking forward to merging them to mainstream kernel early. :-))

Best regards,
Toshiyuki Okajima

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