Messages in this thread | | | Date | Tue, 10 May 2011 19:03:07 +0200 | From | Jan Kara <> | Subject | Re: [PATCHSET v3.1 0/7] data integrity: Stabilize pages during writeback for various fses |
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On Wed 11-05-11 01:29:28, OGAWA Hirofumi wrote: > Jan Kara <jack@suse.cz> writes: > > > On Wed 11-05-11 00:24:58, OGAWA Hirofumi wrote: > >> Jan Kara <jack@suse.cz> 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? Right, my fault. Sorry. So you were right, reallocated blocks will be hit as well.
Honza -- Jan Kara <jack@suse.cz> SUSE Labs, CR
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