On Wed, 18 Jun 2008 00:33:18 +0900, KOSAKI Motohiro <[EMAIL PROTECTED]> wrote:
> > @@ -715,13 +725,7 @@ unlock:
> > * restored.
> > */
> > list_del(&page->lru);
> > - if (!page->mapping) {
> > - VM_BUG_ON(page_count(page) != 1);
> > - unlock_page(page);
> > - put_page(page); /* just free the old page */
> > - goto end_migration;
> > - } else
> > - unlock = putback_lru_page(page);
> > + unlock = putback_lru_page(page);
> > }
> >
> > if (unlock)
>
> this part is really necessary?
> I tryed to remove it, but any problem doesn't happend.
>
I made this part first, and added a fix for migration_entry_wait later.
So, I haven't test without this part, and I think it will cause
VM_BUG_ON() here without this part.
Anyway, I will test it.
> Of cource, another part is definitly necessary for specurative pagecache :)
>
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