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[S390] incorrect PageTables counter for kvm page tables 

The page_table_free_pgste function is used for kvm processes to free page
tables that have the pgste extension. It calls pgtable_page_ctor instead of
pgtable_page_dtor which increases NR_PAGETABLE instead of decreasing it.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
hifive-unleashed-5.1
Martin Schwidefsky 2012-02-17 10:29:21 +01:00
parent f3612304ee
commit 2320c57937
1 changed files with 1 additions and 1 deletions
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2
arch/s390/mm/pgtable.c
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@ -574,7 +574,7 @@ static inline void page_table_free_pgste(unsigned long *table)
page = pfn_to_page(__pa(table) >> PAGE_SHIFT);
mp = (struct gmap_pgtable *) page->index;
BUG_ON(!list_empty(&mp->mapper));
pgtable_page_ctor(page);
pgtable_page_dtor(page);
atomic_set(&page->_mapcount, -1);
kfree(mp);
__free_page(page);