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linux/arch/powerpc/mm
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Anton Blanchard eaeafcd898 powerpc: Fix deadlock in icswx code 
commit 8bdafa39a4 upstream.

The icswx code introduced an A-B B-A deadlock:

     CPU0                    CPU1
     ----                    ----
lock(&anon_vma->mutex);
                             lock(&mm->mmap_sem);
                             lock(&anon_vma->mutex);
lock(&mm->mmap_sem);

Instead of using the mmap_sem to keep mm_users constant, take the
page table spinlock.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-11 09:37:11 -08:00
..
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
dma-noncoherent.c powerpc: Implement dma_mmap_coherent() 2011-03-30 10:44:00 +11:00
fault.c arch/powerpc: use printk_ratelimited instead of printk_ratelimit 2011-06-29 15:31:01 +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 powerpc: remove superfluous PageTail checks on the pte gup_fast 2011-11-11 09:36:45 -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: Free up some CPU feature bits by moving out MMU-related features 2011-04-27 14:18:52 +10:00
hash_native_64.c powerpc: Use new CPU feature bit to select 2.06 tlbie 2011-05-04 15:19:26 +10:00
hash_utils_64.c powerpc: Fix oops when echoing bad values to /sys/devices/system/memory/probe 2011-11-11 09:37:10 -08:00
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 thp: share get_huge_page_tail() 2011-11-11 09:36:48 -08:00
init_32.c powerpc: Force page alignment for initrd reserved memory 2011-06-09 16:52:38 +10:00
init_64.c powerpc: Force page alignment for initrd reserved memory 2011-06-09 16:52:38 +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
mem.c powerpc: Fix oops when echoing bad values to /sys/devices/system/memory/probe 2011-11-11 09:37:10 -08:00
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 powerpc: Fix deadlock in icswx code 2011-11-11 09:37:11 -08:00
mmu_context_nohash.c powerpc: Add TLB size detection for TYPE_3E MMUs 2011-04-27 13:02:10 +10:00
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: Remove double of_node_put in hot_add_node_scn_to_nid 2011-11-11 09:37:09 -08:00
pgtable_32.c powerpc: Remove ioremap_flags 2011-05-19 14:30:43 +10:00
pgtable_64.c powerpc: Remove ioremap_flags 2011-05-19 14:30:43 +10:00
pgtable.c mm, powerpc: move the RCU page-table freeing into generic code 2011-05-25 08:39:16 -07:00
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_low.S powerpc: Free up some CPU feature bits by moving out MMU-related features 2011-04-27 14:18:52 +10:00
slb.c powerpc: Free up some CPU feature bits by moving out MMU-related features 2011-04-27 14:18:52 +10:00
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 powerpc: Free up some CPU feature bits by moving out MMU-related features 2011-04-27 14:18:52 +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 mm, powerpc: move the RCU page-table freeing into generic code 2011-05-25 08:39:16 -07:00
tlb_hash64.c mm, powerpc: move the RCU page-table freeing into generic code 2011-05-25 08:39:16 -07:00
tlb_low_64e.S Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6 2011-04-07 11:14:49 -07:00
tlb_nohash_low.S powerpc/476: Workaround for PLB6 hang 2011-02-02 06:59:02 -05:00
tlb_nohash.c mm, powerpc: move the RCU page-table freeing into generic code 2011-05-25 08:39:16 -07:00