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Nitin Gupta 7bc3777ca1 sparc64: Trim page tables for 8M hugepages 
For PMD aligned (8M) hugepages, we currently allocate
all four page table levels which is wasteful. We now
allocate till PMD level only which saves memory usage
from page tables.

Also, when freeing page table for 8M hugepage backed region,
make sure we don't try to access non-existent PTE level.

Orabug: 22630259

Signed-off-by: Nitin Gupta <nitin.m.gupta@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2016-07-29 10:49:16 -07:00
..
Makefile sparc32: introduce run-time patching of srmmu access functions 2012-05-27 23:52:49 -07:00
extable.c sparc: Add module.h to files previously implicitly using it. 2011-10-31 19:30:54 -04:00
fault_32.c mm: do not pass mm_struct into handle_mm_fault 2016-07-26 16:19:19 -07:00
fault_64.c sparc64: Trim page tables for 8M hugepages 2016-07-29 10:49:16 -07:00
gup.c mm/gup: Switch all callers of get_user_pages() to not pass tsk/mm 2016-02-16 10:11:12 +01:00
highmem.c sched/preempt, mm/kmap: Explicitly disable/enable preemption in kmap_atomic_* 2015-05-19 08:39:14 +02:00
hugetlbpage.c sparc64: Trim page tables for 8M hugepages 2016-07-29 10:49:16 -07:00
hypersparc.S [PATCH] sparc32: vm_area_struct access for old Sun SPARCs. 2013-07-10 13:56:10 -07:00
init_32.c sparc32: fix sparse warning in devices.c 2014-04-29 01:12:26 -04:00
init_64.c sparc64: Trim page tables for 8M hugepages 2016-07-29 10:49:16 -07:00
init_64.h sparc64: Use kernel page tables for vmemmap. 2014-10-05 16:53:39 -07:00
io-unit.c sparc32: fix build with STRICT_MM_TYPECHECKS 2016-05-20 17:55:42 -07:00
iommu.c sparc32: fix sparse warning in iommu.c 2014-05-18 19:01:26 -07:00
leon_mm.c sparc32: fix sparse "Should it be static?" in mm/ 2014-04-29 01:12:25 -04:00
mm_32.h sparc32: fix sparse "Should it be static?" in mm/ 2014-04-29 01:12:25 -04:00
srmmu.c sparc32: drop superfluous cast in calls to __nocache_pa() 2016-05-20 17:55:42 -07:00
srmmu_access.S sparc32: introduce run-time patching of srmmu access functions 2012-05-27 23:52:49 -07:00
swift.S [PATCH] sparc32: vm_area_struct access for old Sun SPARCs. 2013-07-10 13:56:10 -07:00
tlb.c sparc64 mm: Fix base TSB sizing when hugetlb pages are used 2016-07-28 21:22:12 -07:00
tsb.c sparc64 mm: Fix base TSB sizing when hugetlb pages are used 2016-07-28 21:22:12 -07:00
tsunami.S [PATCH] sparc32: vm_area_struct access for old Sun SPARCs. 2013-07-10 13:56:10 -07:00
ultra.S sparc64: Make PAGE_OFFSET variable. 2013-11-12 15:22:34 -08:00
viking.S [PATCH] sparc32: vm_area_struct access for old Sun SPARCs. 2013-07-10 13:56:10 -07:00