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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
..
alpha mm: do not pass mm_struct into handle_mm_fault 2016-07-26 16:19:19 -07:00
arc Disable "maybe-uninitialized" warning globally 2016-07-27 13:17:41 -07:00
arm New LED class driver: 2016-07-27 14:03:52 -07:00
arm64 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2016-07-27 12:03:20 -07:00
avr32 mm: do not pass mm_struct into handle_mm_fault 2016-07-26 16:19:19 -07:00
blackfin media updates for v4.8-rc1 2016-07-26 18:59:59 -07:00
c6x
cris mm: do not pass mm_struct into handle_mm_fault 2016-07-26 16:19:19 -07:00
frv mm: do not pass mm_struct into handle_mm_fault 2016-07-26 16:19:19 -07:00
h8300
hexagon Merge branch 'akpm' (patches from Andrew) 2016-07-26 19:55:54 -07:00
ia64 Merge branch 'akpm' (patches from Andrew) 2016-07-26 19:55:54 -07:00
m32r mm: do not pass mm_struct into handle_mm_fault 2016-07-26 16:19:19 -07:00
m68k mm: do not pass mm_struct into handle_mm_fault 2016-07-26 16:19:19 -07:00
metag mm: do not pass mm_struct into handle_mm_fault 2016-07-26 16:19:19 -07:00
microblaze Merge branch 'akpm' (patches from Andrew) 2016-07-26 19:55:54 -07:00
mips spi: Updates for v4.8 2016-07-27 14:11:43 -07:00
mn10300 mm: do not pass mm_struct into handle_mm_fault 2016-07-26 16:19:19 -07:00
nios2 mm: do not pass mm_struct into handle_mm_fault 2016-07-26 16:19:19 -07:00
openrisc Merge branch 'akpm' (patches from Andrew) 2016-07-26 19:55:54 -07:00
parisc New LED class driver: 2016-07-27 14:03:52 -07:00
powerpc New LED class driver: 2016-07-27 14:03:52 -07:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2016-07-27 12:03:20 -07:00
score mm: do not pass mm_struct into handle_mm_fault 2016-07-26 16:19:19 -07:00
sh Merge branch 'akpm' (patches from Andrew) 2016-07-26 19:55:54 -07:00
sparc sparc64: Trim page tables for 8M hugepages 2016-07-29 10:49:16 -07:00
tile Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile 2016-07-27 10:54:11 -07:00
um Merge branch 'akpm' (patches from Andrew) 2016-07-26 19:55:54 -07:00
unicore32 New LED class driver: 2016-07-27 14:03:52 -07:00
x86 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2016-07-27 12:03:20 -07:00
xtensa mm: do not pass mm_struct into handle_mm_fault 2016-07-26 16:19:19 -07:00
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