Messages in this thread | | | Date | Mon, 5 Jul 2010 17:44:37 +0900 | From | Naoya Horiguchi <> | Subject | Re: [PATCH 1/7] hugetlb: add missing unlock in avoidcopy path in hugetlb_cow() |
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On Fri, Jul 02, 2010 at 10:31:43AM +0200, Andi Kleen wrote: > On Fri, Jul 02, 2010 at 02:47:20PM +0900, Naoya Horiguchi wrote: > > This patch fixes possible deadlock in hugepage lock_page() > > by adding missing unlock_page(). > > > > libhugetlbfs test will hit this bug when the next patch in this > > patchset ("hugetlb, HWPOISON: move PG_HWPoison bit check") is applied. > > This looks like a general bug fix that should be merged ASAP? > > Or do you think this cannot be hit at all without the other patches?
This bug was introduced by patch "hugetlb, rmap: add reverse mapping for hugepage" in previous patchset (currently in linux-next) and it's not merged in mainline yet. So it's OK if this patch goes into linux-next by its merge to mainline.
Thanks, Naoya Horiguchi
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