Re: [PATCH 3/3] ext3: Avoid starting a transaction in writepagewhen not necessary

[Jan Kara]

On Fri 27-03-09 16:24:31, Theodore Ts'o wrote:
> From: Jan Kara <jack@xxxxxxx>
> 
> We don't have to start a transaction in writepage() when all the blocks
> are a properly allocated. Even in ordered mode either the data has been
> written via write() and they are thus already added to transaction's list
> or the data was written via mmap and then it's random in which transaction
> they get written anyway.
> 
> This should help VM to pageout dirty memory without blocking on transaction
> commits.
> 
> Signed-off-by: Jan Kara <jack@xxxxxxx>
> Signed-off-by: "Theodore Ts'o" <tytso@xxxxxxx>
  Please, use the patch below instead (and I'd also wait a few days for
Mingo to check whether it also helps him). It also changes data=writeback
mode in the same way and it adheres to coding style...

									Honza
-- 
Jan Kara <jack@xxxxxxx>
SUSE Labs, CR

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