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linux/arch/arm/mm
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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
..
abort-ev4.S
ARM: entry: data abort: tail-call the main data abort handler
2011-07-02 10:56:11 +01:00
abort-ev4t.S
ARM: entry: data abort: tail-call the main data abort handler
2011-07-02 10:56:11 +01:00
abort-ev5t.S
ARM: entry: data abort: tail-call the main data abort handler
2011-07-02 10:56:11 +01:00
abort-ev5tj.S
ARM: entry: data abort: tail-call the main data abort handler
2011-07-02 10:56:11 +01:00
abort-ev6.S
ARM: 7396/1: errata: only handle ARM erratum #326103 on affected cores
2012-04-23 14:21:52 +01:00
abort-ev7.S
ARM: entry: data abort: tail-call the main data abort handler
2011-07-02 10:56:11 +01:00
abort-lv4t.S
ARM: entry: data abort: ensure r5 is preserved by abort functions
2011-07-02 10:56:12 +01:00
abort-macro.S
ARM: 7088/1: entry: fix wrong parameter name used in do_thumb_abort
2011-09-10 23:39:56 +01:00
abort-nommu.S
ARM: entry: data abort: tail-call the main data abort handler
2011-07-02 10:56:11 +01:00
alignment.c
ARM: Fix build warning in arch/arm/mm/alignment.c
2012-09-15 21:43:31 +01:00
cache-fa.S
ARM: mm: cache-fa: Use the new processor struct macros
2011-07-07 15:31:05 +01:00
cache-feroceon-l2.c
ARM: move CP15 definitions to separate header file
2012-03-28 18:30:01 +01:00
cache-l2x0.c
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
2012-10-07 21:20:57 +09:00
cache-tauros2.c
ARM: cache: add dt support for tauros2 cache
2012-08-16 16:16:50 +08:00
cache-v3.S
ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails
2012-05-02 11:12:49 +01:00
cache-v4.S
ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails
2012-05-02 11:12:49 +01:00
cache-v4wb.S
ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails
2012-05-02 11:12:49 +01:00
cache-v4wt.S
ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails
2012-05-02 11:12:49 +01:00
cache-v6.S
ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails
2012-05-02 11:12:49 +01:00
cache-v7.S
ARM: 7541/1: Add ARM ERRATA 775420 workaround
2012-09-28 21:11:49 +01:00
cache-xsc3l2.c
ARM: move CP15 definitions to separate header file
2012-03-28 18:30:01 +01:00
context.c
ARM: 7502/1: contextidr: avoid using bfi instruction during notifier
2012-08-25 09:15:57 +01:00
copypage-fa.c
arm: remove the second argument of k[un]map_atomic()
2012-03-20 21:48:14 +08:00
copypage-feroceon.c
arm: remove the second argument of k[un]map_atomic()
2012-03-20 21:48:14 +08:00
copypage-v4mc.c
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
2012-03-29 16:53:48 -07:00
copypage-v4wb.c
arm: remove the second argument of k[un]map_atomic()
2012-03-20 21:48:14 +08:00
copypage-v4wt.c
arm: remove the second argument of k[un]map_atomic()
2012-03-20 21:48:14 +08:00
copypage-v6.c
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
2012-03-29 16:53:48 -07:00
copypage-xsc3.c
arm: remove the second argument of k[un]map_atomic()
2012-03-20 21:48:14 +08:00
copypage-xscale.c
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
2012-03-29 16:53:48 -07:00
dma-mapping.c
Merge branch 'next-cleanup' into for-v3.7
2012-10-02 09:24:24 +02:00
extable.c
[ARM] Convert asm/uaccess.h to linux/uaccess.h
2008-09-06 11:35:55 +01:00
fault-armv.c
mm: replace vma prio_tree with an interval tree
2012-10-09 16:22:39 +09:00
fault.c
readahead: fault retry breaks mmap file read random detection
2012-10-09 16:22:47 +09:00
fault.h
ARM: LPAE: Add fault handling support
2011-12-08 10:30:40 +00:00
flush.c
mm: replace vma prio_tree with an interval tree
2012-10-09 16:22:39 +09:00
fsr-2level.c
ARM: LPAE: Move the FSR definitions to separate files
2011-12-08 10:30:37 +00:00
fsr-3level.c
ARM: LPAE: Add fault handling support
2011-12-08 10:30:40 +00:00
highmem.c
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
2012-03-29 16:53:48 -07:00
idmap.c
Disintegrate asm/system.h for ARM
2012-03-28 18:30:01 +01:00
init.c
ARM: Allow arm_memblock_steal() to remove memory from any RAM region
2012-08-13 00:22:28 +01:00
iomap.c
arm/PCI: remove arch pci_flags definition
2012-02-23 20:18:56 -07:00
ioremap.c
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
2012-10-07 21:20:57 +09:00
Kconfig
ARM: Remove support for ARMv3 ARM610 and ARM710 CPUs
2012-05-05 05:50:50 +01:00
Makefile
ARM: Remove support for ARMv3 ARM610 and ARM710 CPUs
2012-05-05 05:50:50 +01:00
mm.h
ARM: Fix ioremap() of address zero
2012-08-25 09:11:40 +01:00
mmap.c
ARM: 7169/1: topdown mmap support
2011-12-06 11:15:25 +00:00
mmu.c
Merge branch 'for-v3.7' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping
2012-10-02 19:13:12 -07:00
nommu.c
ARM: 7383/1: nommu: populate vectors page from paging_init
2012-04-13 14:05:42 +01:00
pabort-legacy.S
ARM: entry: prefetch abort: tail-call the main prefetch abort handler
2011-07-02 10:56:10 +01:00
pabort-v6.S
ARM: entry: prefetch abort: tail-call the main prefetch abort handler
2011-07-02 10:56:10 +01:00
pabort-v7.S
ARM: entry: prefetch abort: tail-call the main prefetch abort handler
2011-07-02 10:56:10 +01:00
pgd.c
ARM: move CP15 definitions to separate header file
2012-03-28 18:30:01 +01:00
proc-arm7tdmi.S
ARM: proc-*.S: place cpu_reset functions into .idmap.text section
2011-12-06 14:04:14 +00:00
proc-arm9tdmi.S
ARM: proc-*.S: place cpu_reset functions into .idmap.text section
2011-12-06 14:04:14 +00:00
proc-arm720.S
ARM: proc-*.S: place cpu_reset functions into .idmap.text section
2011-12-06 14:04:14 +00:00
proc-arm740.S
ARM: proc-*.S: place cpu_reset functions into .idmap.text section
2011-12-06 14:04:14 +00:00
proc-arm920.S
ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails
2012-05-02 11:12:49 +01:00
proc-arm922.S
ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails
2012-05-02 11:12:49 +01:00
proc-arm925.S
ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails
2012-05-02 11:12:49 +01:00
proc-arm926.S
ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails
2012-05-02 11:12:49 +01:00
proc-arm940.S
ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails
2012-05-02 11:12:49 +01:00
proc-arm946.S
ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails
2012-05-02 11:12:49 +01:00
proc-arm1020.S
ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails
2012-05-02 11:12:49 +01:00
proc-arm1020e.S
ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails
2012-05-02 11:12:49 +01:00
proc-arm1022.S
ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails
2012-05-02 11:12:49 +01:00
proc-arm1026.S
ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails
2012-05-02 11:12:49 +01:00
proc-fa526.S
Disintegrate asm/system.h for ARM
2012-03-28 18:30:01 +01:00
proc-feroceon.S
ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails
2012-05-02 11:12:49 +01:00
proc-macros.S
ARM: LPAE: MMU setup for the 3-level page table format
2011-12-08 10:30:39 +00:00
proc-mohawk.S
arm-soc: power management changes
2012-05-22 09:41:01 -07:00
proc-sa110.S
ARM: proc-*.S: place cpu_reset functions into .idmap.text section
2011-12-06 14:04:14 +00:00
proc-sa1100.S
ARM: proc-*.S: place cpu_reset functions into .idmap.text section
2011-12-06 14:04:14 +00:00
proc-syms.c
ARM: add size argument to __cpuc_flush_dcache_page
2009-12-14 14:53:22 +00:00
proc-v6.S
ARM: 7445/1: mm: update CONTEXTIDR register to contain PID of current process
2012-07-09 17:41:10 +01:00
proc-v7-2level.S
ARM: 7445/1: mm: update CONTEXTIDR register to contain PID of current process
2012-07-09 17:41:10 +01:00
proc-v7-3level.S
ARM: LPAE: MMU setup for the 3-level page table format
2011-12-08 10:30:39 +00:00
proc-v7.S
ARM: 7384/1: ThumbEE: Disable userspace TEEHBR access for !CONFIG_ARM_THUMBEE
2012-04-15 22:00:31 +01:00
proc-xsc3.S
ARM: proc-*.S: place cpu_reset functions into .idmap.text section
2011-12-06 14:04:14 +00:00
proc-xscale.S
ARM: proc-*.S: place cpu_reset functions into .idmap.text section
2011-12-06 14:04:14 +00:00
tlb-fa.S
Merge branch 'devel-stable' into for-next
2011-07-22 23:09:07 +01:00
tlb-v4.S
ARM: mm: tlb-v4: Use the new processor struct macros
2011-07-07 15:31:12 +01:00
tlb-v4wb.S
ARM: mm: tlb-v4wb: Use the new processor struct macros
2011-07-07 15:31:12 +01:00
tlb-v4wbi.S
ARM: mm: tlb-v4wbi: Use the new processor struct macros
2011-07-07 15:31:12 +01:00
tlb-v6.S
Merge branch 'devel-stable' into for-next
2011-07-22 23:09:07 +01:00
tlb-v7.S
ARM: 7489/1: errata: fix workaround for erratum #720789 on UP systems
2012-08-11 09:16:00 +01:00
vmregion.c
ARM: add dma coherent region reporting via procfs
2012-01-23 10:23:57 +00:00
vmregion.h
ARM: dma-mapping: add support for IOMMU mapper
2012-05-21 15:06:23 +02:00