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s390/mm: add support for 2GB hugepages

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This adds support for 2GB hugetlbfs pages on s390.

Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Gerald Schaefer
2016-07-04 14:47:01 +02:00
committed by Martin Schwidefsky
parent 46210c440c
commit d08de8e2d8
8 changed files with 232 additions and 63 deletions
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4
mm/hugetlb.c
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@@ -1022,7 +1022,9 @@ static int hstate_next_node_to_free(struct hstate *h, nodemask_t *nodes_allowed)
((node = hstate_next_node_to_free(hs, mask)) || 1); \
nr_nodes--)
#if defined(CONFIG_X86_64) && ((defined(CONFIG_MEMORY_ISOLATION) && defined(CONFIG_COMPACTION)) || defined(CONFIG_CMA))
#if (defined(CONFIG_X86_64) || defined(CONFIG_S390)) && \
((defined(CONFIG_MEMORY_ISOLATION) && defined(CONFIG_COMPACTION)) || \
defined(CONFIG_CMA))
static void destroy_compound_gigantic_page(struct page *page,
unsigned int order)
{