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Peter Zijlstra f342552b91 powerpc/mm: Make hpte_need_flush() safe for preemption 
hpte_need_flush() might be called outside of a preempt section
when manipulating the kernel page tables, so we need to use the
appopriate variants of per-cpu variable accesses. There should
be no risk of being in the middle of a batch and a context
switch will flush any pending batch.

[Patch extracted from a larger patch in Peter's preemptible
 mmu_gather series]

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
 		2011-03-02 14:56:48 +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 memblock: Remove rmo_size, burry it in arch/powerpc where it belongs 2010-08-05 12:56:08 +10:00
Makefile powerpc/fsl-booke64: Use TLB CAMs to cover linear mapping on FSL 64-bit chips 2010-10-14 00:55:14 -05:00
dma-noncoherent.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
fault.c powerpc: Check end of stack canary at oops time 2010-09-02 14:07:30 +10:00
fsl_booke_mmu.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2010-10-21 21:19:54 -07:00
gup.c thp: alter compound get_page/put_page 2011-01-13 17:32:39 -08:00
hash_low_32.S powerpc: Use names rather than numbers for SPRGs (v2) 2009-08-20 10:12:27 +10:00
hash_low_64.S powerpc/mm: Move around testing of _PAGE_PRESENT in hash code 2010-07-23 08:53:23 +10:00
hash_native_64.c powerpc: Convert native_tlbie_lock to raw_spinlock 2010-02-19 14:52:30 +11:00
hash_utils_64.c powerpc/mm: Avoid avoidable void* pointer 2010-11-29 15:48:23 +11:00
highmem.c mm: fix race in kunmap_atomic() 2010-10-27 18:03:05 -07:00
hugetlbpage-hash64.c powerpc/mm: Add some debug output when hash insertion fails 2010-07-23 12:56:56 +10:00
hugetlbpage.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
init_32.c memblock: Remove rmo_size, burry it in arch/powerpc where it belongs 2010-08-05 12:56:08 +10:00
init_64.c Merge commit 'v2.6.36-rc3' into x86/memblock 2010-08-31 09:45:46 +02:00
mem.c memblock, bootmem: Round pfn properly for memory and reserved regions 2010-10-12 15:37:51 -07:00
mmap_64.c powerpc: Use helpers for rlimits 2010-01-15 13:20:08 +11:00
mmu_context_hash32.c PPC: Split context init/destroy functions 2010-05-17 12:18:20 +03:00
mmu_context_hash64.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
mmu_context_nohash.c powerpc: Cleanup APIs for cpu/thread/core mappings 2010-11-29 15:48:19 +11:00
mmu_decl.h powerpc/fsl-booke64: Use TLB CAMs to cover linear mapping on FSL 64-bit chips 2010-10-14 00:55:14 -05:00
numa.c powerpc/numa: Fix bug in unmap_cpu_from_node 2011-02-07 13:06:06 +11:00
pgtable.c powerpc: Use call_rcu_sched() for pagetables 2010-11-30 10:42:20 +11:00
pgtable_32.c powerpc: Remove unnecessary casts of void ptr 2010-12-09 15:36:30 +11:00
pgtable_64.c powerpc: Record vma->phys_addr in ioremap() 2010-12-09 15:35:32 +11:00
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/pseries: Fix to handle slb resize across migration 2009-09-02 16:19:01 +10:00
slb_low.S powerpc/mm: Fix hang accessing top of vmalloc space 2009-10-14 16:58:36 +11:00
slice.c powerpc: is_hugepage_only_range() must account for both 4kB and 64kB slices 2009-01-16 16:15:16 +11:00
stab.c lmb: rename to memblock 2010-07-14 17:14:00 +10:00
subpage-prot.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
tlb_hash32.c powerpc: Removing dead CONFIG_SMP_750 2010-07-09 11:28:38 +10:00
tlb_hash64.c powerpc/mm: Make hpte_need_flush() safe for preemption 2011-03-02 14:56:48 +11:00
tlb_low_64e.S powerpc/mm: Fix module instruction tlb fault handling on Book-E 64 2010-11-18 14:54:23 +11:00
tlb_nohash.c powerpc/mm: Fix build error in setup_initial_memory_limit 2010-11-18 14:54:22 +11:00
tlb_nohash_low.S powerpc/fsl-booke64: Use TLB CAMs to cover linear mapping on FSL 64-bit chips 2010-10-14 00:55:14 -05:00