diff options
| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2013-11-14 14:31:50 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-15 09:32:19 +0900 |
| commit | f820e2805c7acb157a78438d07e47f4fc57fe679 (patch) | |
| tree | 53d638a93450e21eaefcce74495a512e56623fc6 /arch/xtensa/mm | |
| parent | 01058e70767de7b846588ef651c4d66e862f6823 (diff) | |
xtensa: use buddy allocator for PTE table
At the moment xtensa uses slab allocator for PTE table. It doesn't work
with enabled split page table lock: slab uses page->slab_cache and
page->first_page for its pages. These fields share stroage with
page->ptl.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Chris Zankel <chris@zankel.net>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/xtensa/mm')
| -rw-r--r-- | arch/xtensa/mm/mmu.c | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/arch/xtensa/mm/mmu.c b/arch/xtensa/mm/mmu.c index a1077570e383..c43771c974be 100644 --- a/arch/xtensa/mm/mmu.c +++ b/arch/xtensa/mm/mmu.c @@ -50,23 +50,3 @@ void __init init_mmu(void) */ set_ptevaddr_register(PGTABLE_START); } - -struct kmem_cache *pgtable_cache __read_mostly; - -static void pgd_ctor(void *addr) -{ - pte_t *ptep = (pte_t *)addr; - int i; - - for (i = 0; i < 1024; i++, ptep++) - pte_clear(NULL, 0, ptep); - -} - -void __init pgtable_cache_init(void) -{ - pgtable_cache = kmem_cache_create("pgd", - PAGE_SIZE, PAGE_SIZE, - SLAB_HWCACHE_ALIGN, - pgd_ctor); -} |