On Mon, 28 Feb 2011 02:01:43 +0900
Minchan Kim <minchan.kim@xxxxxxxxx> wrote:
> On Fri, Feb 25, 2011 at 01:35:57PM -0800, Greg Thelen wrote:
spin_unlock_irqrestore(&mapping->tree_lock, flags);
> > } else {
> > @@ -1365,6 +1368,7 @@ int test_set_page_writeback(struct page *page)
> > PAGECACHE_TAG_WRITEBACK);
> > if (bdi_cap_account_writeback(bdi))
> > __inc_bdi_stat(bdi, BDI_WRITEBACK);
> > + mem_cgroup_inc_page_stat(page, MEMCG_NR_FILE_WRITEBACK);
>
> Question:
> Why should we care of BDI_CAP_NO_WRITEBACK?
>
Hmm, should we do ..
==
if (!ret) {
account_page_writeback(page);
+ mem_cgroup_inc_page_stat(page, MEMCG_NR_FILE_WRITEBACL);
}
==
Thanks,
-Kame
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