Hillf Danton wrote:
> On Mon, Jan 28, 2013 at 5:24 PM, Kirill A. Shutemov
> <kirill.shutemov@xxxxxxxxxxxxxxx> wrote:
> > + page_cache_get(page);
> > + spin_lock_irq(&mapping->tree_lock);
> > + page->mapping = mapping;
> > + if (PageTransHuge(page)) {
> > + int i;
> > + for (i = 0; i < HPAGE_CACHE_NR; i++) {
> > + page_cache_get(page + i);
> > + page[i].index = offset + i;
> > + error = radix_tree_insert(&mapping->page_tree,
> > + offset + i, page + i);
> > + if (error) {
> > + page_cache_release(page + i);
> > + break;
> > + }
>
> Is page count balanced with the following?
It's broken. Last minue changes are evil :(
Thanks for catching it. I'll fix it in next revision.
> @@ -168,6 +180,9 @@ void delete_from_page_cache(struct page *page)
>
> if (freepage)
> freepage(page);
> + if (PageTransHuge(page))
> + for (i = 1; i < HPAGE_CACHE_NR; i++)
> + page_cache_release(page);
> page_cache_release(page);
--
Kirill A. Shutemov
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