Shaohua Li 45cac65b0f readahead: fault retry breaks mmap file read random detection ...

.fault now can retry.  The retry can break state machine of .fault.  In
filemap_fault, if page is miss, ra->mmap_miss is increased.  In the second
try, since the page is in page cache now, ra->mmap_miss is decreased.  And
these are done in one fault, so we can't detect random mmap file access.

Add a new flag to indicate .fault is tried once.  In the second try, skip
ra->mmap_miss decreasing.  The filemap_fault state machine is ok with it.

I only tested x86, didn't test other archs, but looks the change for other
archs is obvious, but who knows :)

Signed-off-by: Shaohua Li <shaohua.li@fusionio.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2012-10-09 16:22:47 +09:00

..

40x_mmu.c

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44x_mmu.c

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dma-noncoherent.c

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fault.c

readahead: fault retry breaks mmap file read random detection

2012-10-09 16:22:47 +09:00

fsl_booke_mmu.c

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gup.c

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hash_low_32.S

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hash_low_64.S

powerpc/mm: Convert virtual address to vpn

2012-09-17 16:31:49 +10:00

hash_native_64.c

powerpc: Remove tlb batching hack for nighthawk

2012-09-27 12:51:06 +10:00

hash_utils_64.c

powerpc/mm: Increase the slice range to 64TB

2012-09-17 16:31:50 +10:00

highmem.c

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hugetlbpage-book3e.c

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hugetlbpage-hash64.c

powerpc/mm: Convert virtual address to vpn

2012-09-17 16:31:49 +10:00

hugetlbpage.c

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icswx_pid.c

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icswx.c

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icswx.h

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init_32.c

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init_64.c

powerpc: Remove all includes of <asm/abs_addr.h>

2012-09-05 15:19:33 +10:00

Makefile

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mem.c

powerpc/swiotlb: Enable at early stage and disable if not necessary

2012-09-12 14:57:09 -05:00

mmap_64.c

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mmu_context_hash32.c

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mmu_context_hash64.c

powerpc/mm: Update VSID allocation documentation

2012-09-17 16:31:53 +10:00

mmu_context_nohash.c

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mmu_decl.h

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numa.c

powerpc/vphn: Fix arch_update_cpu_topology() return value

2012-09-05 16:05:19 +10:00

pgtable_32.c

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pgtable_64.c

powerpc/mm: Make some of the PGTABLE_RANGE dependency explicit

2012-09-17 16:31:53 +10:00

pgtable.c

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ppc_mmu_32.c

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slb_low.S

powerpc/mm: Add 64TB support

2012-09-17 16:31:51 +10:00

slb.c

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slice.c

powerpc/mm: Make some of the PGTABLE_RANGE dependency explicit

2012-09-17 16:31:53 +10:00

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/mm: Match variable types to API

2012-09-10 14:37:31 +10:00

tlb_hash32.c

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tlb_hash64.c

powerpc/mm: Convert virtual address to vpn

2012-09-17 16:31:49 +10:00

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_low.S

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tlb_nohash.c

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