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Anton Blanchard 5a049f1490 powerpc: ppc64 address space capped at 32TB, mmap randomisation disabled 
Commit fba2369e6c (mm: use vm_unmapped_area() on powerpc architecture)
has a bug in slice_scan_available() where we compare an unsigned long
(high_slices) against a shifted int. As a result, comparisons against
the top 32 bits of high_slices (representing the top 32TB) always
returns 0 and the top of our mmap region is clamped at 32TB

This also breaks mmap randomisation since the randomised address is
always up near the top of the address space and it gets clamped down
to 32TB.

Cc: stable@vger.kernel.org # v3.10+
Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Michel Lespinasse <walken@google.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
 		2013-11-21 10:33:41 +11:00
..
40x_mmu.c memblock: Remove rmo_size, burry it in arch/powerpc where it belongs 2010-08-05 12:56:08 +10:00
44x_mmu.c powerpc: Delete __cpuinit usage from all users 2013-07-01 11:10:36 +10:00
Makefile powerpc/THP: Add code to handle HPTE faults for hugepages 2013-06-21 16:01:56 +10:00
dma-noncoherent.c mm/arch: use __free_reserved_page() to simplify the code 2013-11-13 12:09:03 +09:00
fault.c arch: mm: pass userspace fault flag to generic fault handler 2013-09-12 15:38:01 -07:00
fsl_booke_mmu.c powerpc/fsl-booke: Fixup calc_cam_sz to support MMU v2 2012-03-15 12:12:19 -05:00
gup.c powerpc: Fix __get_user_pages_fast() irq handling 2013-11-21 10:33:37 +11:00
hash_low_32.S powerpc: Use CURRENT_THREAD_INFO instead of open coded assembly 2012-07-11 14:18:22 +10:00
hash_low_64.S powerpc/mm: handle hugepage size correctly when invalidating hpte entries 2013-06-21 16:01:52 +10:00
hash_native_64.c powerpc: Book 3S MMU little endian support 2013-10-11 16:48:26 +11:00
hash_utils_64.c powerpc: Book 3S MMU little endian support 2013-10-11 16:48:26 +11:00
highmem.c mm: fix race in kunmap_atomic() 2010-10-27 18:03:05 -07:00
hugepage-hash64.c powerpc: Make linux pagetable walk safe with THP enabled 2013-06-21 16:01:56 +10:00
hugetlbpage-book3e.c powerpc/book3e: Change hugetlb preload to take vma argument 2011-12-07 16:26:24 +11:00
hugetlbpage-hash64.c powerpc/mm: handle hugepage size correctly when invalidating hpte entries 2013-06-21 16:01:52 +10:00
hugetlbpage.c mm: remove obsolete comments about page table lock 2013-11-13 12:09:03 +09:00
icswx.c powerpc: Fix typo "CONFIG_ICSWX_PID" 2013-04-18 13:03:54 +10:00
icswx.h powerpc/icswx: Fix race condition with IPI setting ACOP 2012-03-07 17:06:09 +11:00
icswx_pid.c powerpc: Split ICSWX ACOP and PID processing 2011-11-25 14:11:27 +11:00
init_32.c powerpc/8xx: Fixing memory init issue with CONFIG_PIN_TLB 2013-10-28 21:11:22 -05:00
init_64.c powerpc: Prepare to support kernel handling of IOMMU map/unmap 2013-10-11 17:24:39 +11:00
mem.c powerpc: Fix memory hotplug with sparse vmemmap 2013-10-03 17:21:38 +10:00
mmap.c mm: remove free_area_cache 2013-07-10 18:11:34 -07:00
mmu_context_hash32.c powerpc: include export.h for files using EXPORT_SYMBOL/THIS_MODULE 2011-10-31 19:30:38 -04:00
mmu_context_hash64.c powerpc: Reduce PTE table memory wastage 2013-04-30 16:00:07 +10:00
mmu_context_nohash.c powerpc: Delete __cpuinit usage from all users 2013-07-01 11:10:36 +10:00
mmu_decl.h powerpc/fsl-booke: Fix setup_initial_memory_limit to not blindly map 2011-10-11 23:30:41 -05:00
numa.c mm: use pgdat_end_pfn() to simplify the code in arch 2013-11-13 12:09:03 +09:00
pgtable.c powerpc/8xx: Revert commit e0908085fc 2013-10-28 21:11:18 -05:00
pgtable_32.c powerpc: handle pgtable_page_ctor() fail 2013-11-15 09:32:18 +09:00
pgtable_64.c powerpc: handle pgtable_page_ctor() fail 2013-11-15 09:32:18 +09:00
ppc_mmu_32.c memblock: Remove rmo_size, burry it in arch/powerpc where it belongs 2010-08-05 12:56:08 +10:00
slb.c powerpc: Fix little endian lppaca, slb_shadow and dtl_entry 2013-08-14 15:33:35 +10:00
slb_low.S powerpc: Rename USER_ESID_BITS* to ESID_BITS* 2013-03-17 12:45:44 +11:00
slice.c powerpc: ppc64 address space capped at 32TB, mmap randomisation disabled 2013-11-21 10:33:41 +11:00
stab.c powerpc/mm: Remove uses of abs_to_virt() and virt_to_abs() 2012-09-05 15:19:31 +10:00
subpage-prot.c powerpc: Fix a number of sparse warnings 2013-08-14 11:50:24 +10:00
tlb_hash32.c powerpc: include export.h for files using EXPORT_SYMBOL/THIS_MODULE 2011-10-31 19:30:38 -04:00
tlb_hash64.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-07-04 10:29:23 -07:00
tlb_low_64e.S powerpc/booke64: Use SPRG0/3 scratch for bolted TLB miss & crit int 2012-09-05 15:35:52 +10:00
tlb_nohash.c powerpc: Delete __cpuinit usage from all users 2013-07-01 11:10:36 +10:00
tlb_nohash_low.S powerpc/47x: Use the new ppc-opcode infrastructure 2012-11-15 12:59:24 +11:00