Re: [PATCH 05/13] writeback: account per-bdi accumulated writtenpages

From: Wu Fengguang
Date: Wed Nov 24 2010 - 05:44:48 EST


On Wed, Nov 24, 2010 at 06:26:16PM +0800, Peter Zijlstra wrote:
> On Wed, 2010-11-17 at 12:27 +0800, Wu Fengguang wrote:
> > @@ -1292,6 +1292,7 @@ int test_clear_page_writeback(struct pag
> > PAGECACHE_TAG_WRITEBACK);
> > if (bdi_cap_account_writeback(bdi)) {
> > __dec_bdi_stat(bdi, BDI_WRITEBACK);
> > + __inc_bdi_stat(bdi, BDI_WRITTEN);
> > __bdi_writeout_inc(bdi);
> > }
> > }
>
> Shouldn't that live in __bdi_writeout_inc()? It looks like this forgets
> about fuse (fuse_writepage_finish() -> bdi_writeout_inc() ->
> __bdi_writeout_inc()).

Good catch! Will fix it in next post.

Thanks,
Fengguang
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