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[S390] lockless get_user_pages_fast()

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Implement get_user_pages_fast without locking in the fastpath on s390.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Martin Schwidefsky
2010-10-25 16:10:11 +02:00
committed by Martin Schwidefsky
parent 87799ebab7
commit 80217147a3
9 changed files with 395 additions and 28 deletions
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arch/s390/mm/hugetlbpage.c
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@@ -68,7 +68,7 @@ void arch_release_hugepage(struct page *page)
ptep = (pte_t *) page[1].index;
if (!ptep)
return;
pte_free(&init_mm, ptep);
page_table_free(&init_mm, (unsigned long *) ptep);
page[1].index = 0;
}