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Johannes Weiner 91b0abe36a mm + fs: store shadow entries in page cache 
Reclaim will be leaving shadow entries in the page cache radix tree upon
evicting the real page.  As those pages are found from the LRU, an
iput() can lead to the inode being freed concurrently.  At this point,
reclaim must no longer install shadow pages because the inode freeing
code needs to ensure the page tree is really empty.

Add an address_space flag, AS_EXITING, that the inode freeing code sets
under the tree lock before doing the final truncate.  Reclaim will check
for this flag before installing shadow pages.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Rik van Riel <riel@redhat.com>
Reviewed-by: Minchan Kim <minchan@kernel.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Bob Liu <bob.liu@oracle.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jan Kara <jack@suse.cz>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Luigi Semenzato <semenzato@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Metin Doslu <metin@citusdata.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Ozgun Erdogan <ozgun@citusdata.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Roman Gushchin <klamm@yandex-team.ru>
Cc: Ryan Mallon <rmallon@gmail.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-03 16:21:01 -07:00
..
ABI
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2014-04-02 20:53:45 -07:00
accounting
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acpi
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aoe
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arm
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arm64
arm64: Extend the PCI I/O space to 16MB
2014-02-26 11:16:27 +00:00
auxdisplay
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backlight
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blackfin
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block
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blockdev
drbd: Describe the future high-level structure of DRBD
2014-02-17 16:27:48 +01:00
bus-devices
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cdrom
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cgroups
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connector
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console
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cpu-freq
cpufreq: Add stop CPU callback to cpufreq_driver interface
2014-03-20 03:50:12 +01:00
cpuidle
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cris
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crypto
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development-process
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device-mapper
dm thin: fix Documentation for held metadata root feature
2014-03-06 14:23:35 -05:00
devicetree
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2014-04-02 20:53:45 -07:00
DocBook
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2014-04-02 20:53:45 -07:00
driver-model
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dvb
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early-userspace
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EDID
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extcon
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fault-injection
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fb
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filesystems
mm + fs: store shadow entries in page cache
2014-04-03 16:21:01 -07:00
firmware_class
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fmc
FMC: make eeprom attribute writable
2014-02-28 15:12:08 -08:00
frv
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gpio
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hid
HID: uhid: Add UHID_CREATE2 + UHID_INPUT2
2014-04-01 18:27:33 +02:00
hwmon
hwmon: (pmbus/ltc2978) Add support for LTM4676
2014-03-19 18:59:40 -07:00
i2c
Documentation: i2c: mention ACPI method for instantiating devices
2014-02-15 19:46:34 +01:00
i2o
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ia64
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ide
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infiniband
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input
doc: fix double words
2014-03-21 13:16:58 +01:00
ioctl
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isdn
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ja_JP
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kbuild
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kdump
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ko_KR
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laptops
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leds
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m68k
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make
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memory-devices
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metag
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mic
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mips
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misc-devices
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mmc
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mn10300
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mtd
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namespaces
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netlabel
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networking
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2014-04-02 20:53:45 -07:00
nfc
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parisc
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PCI
Merge branch 'pci/dead-code' into next
2014-02-20 14:32:34 -07:00
pcmcia
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phy
phy: Add new Exynos USB 2.0 PHY driver
2014-03-08 12:39:44 +05:30
power
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2014-04-02 16:23:38 -07:00
powerpc
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pps
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prctl
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pti
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ptp
ptp: Fix compiler warnings in the testptp utility
2014-03-27 14:51:47 -04:00
rapidio
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RCU
documentation: Fix some inconsistencies in RTFP.txt
2014-02-17 14:56:10 -08:00
s390
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scheduler
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scsi
[SCSI] megaraid_sas: Version and Changelog update
2014-03-15 10:19:21 -07:00
security
doc: fix double words
2014-03-21 13:16:58 +01:00
serial
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sh
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sound
x86, platforms: Remove SGI Visual Workstation
2014-02-27 08:07:39 -08:00
spi
Merge remote-tracking branches 'spi/topic/s3c64xx', 'spi/topic/sc18is602', 'spi/topic/sh-hspi', 'spi/topic/sh-msiof', 'spi/topic/sh-sci', 'spi/topic/sirf' and 'spi/topic/spidev' into spi-next
2014-03-30 00:51:34 +00:00
sysctl
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-03-31 11:21:19 -07:00
target
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thermal
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timers
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tpm
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trace
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2014-04-02 16:23:38 -07:00
usb
doc: fix double words
2014-03-21 13:16:58 +01:00
vDSO
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video4linux
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virtual
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2014-04-02 16:23:38 -07:00
vm
doc: fix double words
2014-03-21 13:16:58 +01:00
w1
Merge 3.14-rc3 into char-misc-next
2014-02-18 08:09:40 -08:00
watchdog
watchdog: it87_wdt: Work around non-working CIR interrupts
2014-03-31 13:33:55 +02:00
wimax
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x86
x86, boot: Correct max ramdisk size name
2014-03-13 15:32:42 -07:00
xtensa
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zh_CN
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.gitignore
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00-INDEX
Merge branch 'x86-nuke-platforms-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-04-02 13:15:58 -07:00
applying-patches.txt
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assoc_array.txt
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atomic_ops.txt
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bad_memory.txt
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basic_profiling.txt
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bcache.txt
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binfmt_misc.txt
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braille-console.txt
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bt8xxgpio.txt
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btmrvl.txt
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BUG-HUNTING
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bus-virt-phys-mapping.txt
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cachetlb.txt
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Changes
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circular-buffers.txt
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clk.txt
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coccinelle.txt
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CodingStyle
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cpu-hotplug.txt
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cpu-load.txt
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cputopology.txt
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crc32.txt
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dcdbas.txt
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debugging-modules.txt
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debugging-via-ohci1394.txt
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dell_rbu.txt
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devices.txt
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2014-04-02 20:53:45 -07:00
digsig.txt
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DMA-API-HOWTO.txt
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DMA-API.txt
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DMA-attributes.txt
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dma-buf-sharing.txt
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DMA-ISA-LPC.txt
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dmaengine.txt
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dmatest.txt
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dontdiff
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dynamic-debug-howto.txt
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edac.txt
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efi-stub.txt
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eisa.txt
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email-clients.txt
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flexible-arrays.txt
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futex-requeue-pi.txt
doc: fix double words
2014-03-21 13:16:58 +01:00
gcov.txt
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highuid.txt
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HOWTO
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hw_random.txt
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hwspinlock.txt
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init.txt
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initrd.txt
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intel_txt.txt
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Intel-IOMMU.txt
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io_ordering.txt
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io-mapping.txt
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iostats.txt
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IPMI.txt
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IRQ-affinity.txt
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IRQ-domain.txt
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IRQ.txt
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irqflags-tracing.txt
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isapnp.txt
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java.txt
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kernel-doc-nano-HOWTO.txt
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kernel-docs.txt
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kernel-parameters.txt
Merge tag 'pm+acpi-3.15-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2014-04-02 14:10:21 -07:00
kernel-per-CPU-kthreads.txt
Documentation/kernel-per-CPU-kthreads.txt: Workqueue affinity
2014-02-17 14:56:08 -08:00
kmemcheck.txt
doc: fix double words
2014-03-21 13:16:58 +01:00
kmemleak.txt
kmemleak: allow freeing internal objects after kmemleak was disabled
2014-04-03 16:20:50 -07:00
kobject.txt
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kprobes.txt
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kref.txt
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ldm.txt
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local_ops.txt
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lockdep-design.txt
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lockstat.txt
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lockup-watchdogs.txt
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logo.gif
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logo.txt
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magic-number.txt
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Makefile
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ManagementStyle
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md.txt
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media-framework.txt
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memory-barriers.txt
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2014-04-02 16:23:38 -07:00
memory-hotplug.txt
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module-signing.txt
doc: Insert MODULE_ in module-signing macros
2014-02-20 14:55:04 +01:00
mono.txt
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mutex-design.txt
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nommu-mmap.txt
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numastat.txt
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oops-tracing.txt
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padata.txt
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parport-lowlevel.txt
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parport.txt
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percpu-rw-semaphore.txt
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phy.txt
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pi-futex.txt
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pinctrl.txt
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pnp.txt
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preempt-locking.txt
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printk-formats.txt
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pwm.txt
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ramoops.txt
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rbtree.txt
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remoteproc.txt
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rfkill.txt
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robust-futex-ABI.txt
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robust-futexes.txt
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rpmsg.txt
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rt-mutex-design.txt
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rt-mutex.txt
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rtc.txt
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SAK.txt
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SecurityBugs
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serial-console.txt
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sgi-ioc4.txt
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SM501.txt
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smsc_ece1099.txt
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sparse.txt
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spinlocks.txt
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stable_api_nonsense.txt
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stable_kernel_rules.txt
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static-keys.txt
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SubmitChecklist
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SubmittingDrivers
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SubmittingPatches
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svga.txt
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sysfs-rules.txt
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sysrq.txt
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this_cpu_ops.txt
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unaligned-memory-access.txt
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unicode.txt
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unshare.txt
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vfio.txt
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VGA-softcursor.txt
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vgaarbiter.txt
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video-output.txt
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vme_api.txt
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volatile-considered-harmful.txt
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workqueue.txt
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ww-mutex-design.txt
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xz.txt
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zorro.txt
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