Re: [PATCHSET v3.1 0/7] data integrity: Stabilize pages during writeback for various fses

From: OGAWA Hirofumi
Date: Tue May 10 2011 - 12:29:36 EST


Jan Kara <jack@xxxxxxx> writes:

> On Wed 11-05-11 00:24:58, OGAWA Hirofumi wrote:
>> Jan Kara <jack@xxxxxxx> writes:
>>
>> >> Isn't it reallocated blocks too, and metadata too?
>> > Reallocated blocks - not really. For a block to be freed it cannot be
>> > under writeback and when it's freed no writeback is started.
>>
>> Sure for data -> data reallocated case. metadata -> data/metadata is
>> still there.
> Unless you properly use bforget() (which you should I think). But I have
> not really checked this in detail for a while.

bforget() doesn't wait IO, right?
--
OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>
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