Messages in this thread |  | | | Date | Fri, 10 Sep 2010 10:41:45 -0400 | | From | Rik van Riel <> | | Subject | Re: [PATCH 3/4] hugetlb, rmap: fix confusing page locking in hugetlb_cow() |
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On 09/10/2010 12:23 AM, Naoya Horiguchi wrote: > if(!trylock_page) block in avoidcopy path of hugetlb_cow() looks confusing > and is buggy. Originally this trylock_page() is intended to make sure > that old_page is locked even when old_page != pagecache_page, because then > only pagecache_page is locked. > This patch fixes it by moving page locking into hugetlb_fault(). > > Signed-off-by: Naoya Horiguchi<n-horiguchi@ah.jp.nec.com>
Acked-by: Rik van Riel <riel@redhat.com>
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