Re: [PATCHv2, RFC 09/30] thp, mm: rewrite delete_from_page_cache() tosupport huge pages

From: Hillf Danton
Date: Thu Mar 14 2013 - 22:25:35 EST


On Fri, Mar 15, 2013 at 1:50 AM, Kirill A. Shutemov
<kirill.shutemov@xxxxxxxxxxxxxxx> wrote:
> + if (PageTransHuge(page)) {
> + int i;
> +
> + for (i = 0; i < HPAGE_CACHE_NR; i++)
> + radix_tree_delete(&mapping->page_tree, page->index + i);

Move the below page_cache_release for tail page here, please.

> + nr = HPAGE_CACHE_NR;
[...]
> + if (PageTransHuge(page))
> + for (i = 1; i < HPAGE_CACHE_NR; i++)
> + page_cache_release(page + i);
> page_cache_release(page);
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