diff options
| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2017-11-15 17:35:37 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-15 18:21:04 -0800 |
| commit | c4812909f5d5a9b7f1c85a2d95be388a066cda52 (patch) | |
| tree | 3739e892ee148260e2172d579a1c1d838594fb11 /arch/arm/mm/pgd.c | |
| parent | b4e98d9ac775907cc53fb08fcb6776deb7694e30 (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.c | 2 |
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); |