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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/sparc/mm
parentmm: account pud page tables (diff)
downloadlinux-dev-c4812909f5d5a9b7f1c85a2d95be388a066cda52.tar.xz
linux-dev-c4812909f5d5a9b7f1c85a2d95be388a066cda52.zip
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/sparc/mm')
-rw-r--r--arch/sparc/mm/hugetlbpage.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c
index 01f63b4ee2b4..0112d6942288 100644
--- a/arch/sparc/mm/hugetlbpage.c
+++ b/arch/sparc/mm/hugetlbpage.c
@@ -397,7 +397,7 @@ static void hugetlb_free_pte_range(struct mmu_gather *tlb, pmd_t *pmd,
pmd_clear(pmd);
pte_free_tlb(tlb, token, addr);
- atomic_long_dec(&tlb->mm->nr_ptes);
+ mm_dec_nr_ptes(tlb->mm);
}
static void hugetlb_free_pmd_range(struct mmu_gather *tlb, pud_t *pud,