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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2017-11-15 17:35:37 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-15 18:21:04 -0800
commitc4812909f5d5a9b7f1c85a2d95be388a066cda52 (patch)
tree3739e892ee148260e2172d579a1c1d838594fb11 /arch/arm/mm/pgd.c
parentb4e98d9ac775907cc53fb08fcb6776deb7694e30 (diff)
mm: introduce wrappers to access mm->nr_ptes
Let's add wrappers for ->nr_ptes with the same interface as for nr_pmd and nr_pud. The patch also makes nr_ptes accounting dependent onto CONFIG_MMU. Page table accounting doesn't make sense if you don't have page tables. It's preparation for consolidation of page-table counters in mm_struct. Link: http://lkml.kernel.org/r/20171006100651.44742-1-kirill.shutemov@linux.intel.com Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/arm/mm/pgd.c')
-rw-r--r--arch/arm/mm/pgd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mm/pgd.c b/arch/arm/mm/pgd.c
index c1c1a5c67da1..61e281cb29fb 100644
--- a/arch/arm/mm/pgd.c
+++ b/arch/arm/mm/pgd.c
@@ -141,7 +141,7 @@ void pgd_free(struct mm_struct *mm, pgd_t *pgd_base)
pte = pmd_pgtable(*pmd);
pmd_clear(pmd);
pte_free(mm, pte);
- atomic_long_dec(&mm->nr_ptes);
+ mm_dec_nr_ptes(mm);
no_pmd:
pud_clear(pud);
pmd_free(mm, pmd);