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Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull locking changes from Ingo Molnar:
 "Four miscellanous standalone fixes for futexes, rtmutexes and
  Kconfig.locks."

* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  futex: Use freezable blocking call
  futex: Take hugepages into account when generating futex_key
  rtmutex: Document rt_mutex_adjust_prio_chain()
  locking: Fix copy/paste errors of "ARCH_INLINE_*_UNLOCK_BH"
This commit is contained in:
Linus Torvalds
2013-07-02 16:07:52 -07:00
parent 42daabf62b 88c8004fd3
commit 3e42dee676
5 changed files with 53 additions and 5 deletions
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17
mm/hugetlb.c
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@@ -690,6 +690,23 @@ int PageHuge(struct page *page)
}
EXPORT_SYMBOL_GPL(PageHuge);
pgoff_t __basepage_index(struct page *page)
{
struct page *page_head = compound_head(page);
pgoff_t index = page_index(page_head);
unsigned long compound_idx;
if (!PageHuge(page_head))
return page_index(page);
if (compound_order(page_head) >= MAX_ORDER)
compound_idx = page_to_pfn(page) - page_to_pfn(page_head);
else
compound_idx = page - page_head;
return (index << compound_order(page_head)) + compound_idx;
}
static struct page *alloc_fresh_huge_page_node(struct hstate *h, int nid)
{
struct page *page;