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NeilBrown b8faf035ea VFS: allow ->d_manage() to declare -EISDIR in rcu_walk mode. 
In REF-walk mode, ->d_manage can return -EISDIR to indicate
that the dentry is not really a mount trap (or even a mount point)
and that any mounts or any DCACHE_NEED_AUTOMOUNT flag should be
ignored.

RCU-walk mode doesn't currently support this, so if there is a dentry
with DCACHE_NEED_AUTOMOUNT set but which shouldn't be a mount-trap,
lookup_fast() will always drop in REF-walk mode.

With this patch, an -EISDIR from ->d_manage will always cause mounts
and automounts to be ignored, both in REF-walk and RCU-walk.

Bug-fixed-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Ian Kent <raven@themaw.net>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-08-07 14:40:10 -04:00
..
ABI
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2014-06-12 14:27:40 -07:00
accounting
Documentation/accounting/getdelays.c: add missing null-terminate after strncpy call
2014-06-23 16:47:44 -07:00
acpi
ACPI / documentation: Remove reference to acpi_platform_device_ids from enumeration.txt
2014-07-12 00:07:05 +02:00
aoe
aoe: remove do-nothing NAME="%k" term from example udev rules
2013-09-11 15:59:28 -07:00
arm
Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into next
2014-06-05 15:57:04 -07:00
arm64
doc: arm64: add description of EFI stub support
2014-04-30 19:57:05 +01:00
auxdisplay
…
backlight
backlight: lp855x_bl: support new LP8555 device
2013-11-13 12:09:14 +09:00
blackfin
Documentation/: update 00-INDEX files
2014-02-10 16:01:40 -08:00
block
Documentation/: update 00-INDEX files
2014-02-10 16:01:40 -08:00
blockdev
zram: propagate error to user
2014-04-07 16:36:02 -07:00
bus-devices
…
cdrom
…
cgroups
Merge branch 'for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2014-06-09 15:03:33 -07:00
connector
w1: optional bundling of netlink kernel replies
2014-05-27 13:56:21 -07:00
console
TTY:console: update document console.txt
2013-05-21 10:21:57 -07:00
cpu-freq
intel_pstate: Update documentation of {max,min}_perf_pct sysfs files
2014-07-07 01:22:19 +02:00
cpuidle
cpuidle: remove cpuidle_unregister_governor()
2013-10-30 01:21:24 +01:00
cris
…
crypto
drivers/dma: remove unused support for MEMSET operations
2013-07-03 16:07:42 -07:00
development-process
Documentation: development-process: Update -mm and -next URLs
2013-07-25 12:37:24 +02:00
device-mapper
dm thin: add 'no_space_timeout' dm-thin-pool module param
2014-05-20 14:30:36 -04:00
devicetree
Merge commit 'ccbf62d8a284cf181ac28c8e8407dd077d90dd4b' into for-next
2014-08-07 14:07:57 -04:00
DocBook
Merge tag 'v3.16-rc5' into timers/core
2014-07-16 21:57:38 +02:00
driver-model
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2014-06-12 14:27:40 -07:00
dvb
Merge tag 'v3.14-rc5' into patchwork
2014-03-11 06:55:49 -03:00
early-userspace
Documentation: remove reference to 2.7 kernel in early-userspace
2013-08-20 12:47:28 +02:00
EDID
drm: Add 800x600 (SVGA) screen resolution to the built-in EDIDs
2014-05-26 12:53:40 +10:00
extcon
extcon: fix switch class porting guide (Documentation)
2014-01-07 11:54:28 +09:00
fault-injection
…
fb
doc: spelling error changes
2014-05-05 15:32:05 +02:00
filesystems
VFS: allow ->d_manage() to declare -EISDIR in rcu_walk mode.
2014-08-07 14:40:10 -04:00
firmware_class
…
fmc
FMC: make eeprom attribute writable
2014-02-28 15:12:08 -08:00
frv
…
gpio
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial into next
2014-06-04 08:50:34 -07:00
hid
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial into next
2014-06-04 08:50:34 -07:00
hwmon
hwmon: (ntc_thermistor) Use the manufacturer name properly
2014-06-25 07:09:13 -07:00
i2c
Documentation: i2c: improve section about flags mangling the protocol
2014-04-06 13:53:48 +02:00
i2o
…
ia64
…
ide
Documentation/: update 00-INDEX files
2014-02-10 16:01:40 -08:00
infiniband
…
input
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2014-07-23 15:42:53 -07:00
ioctl
s390/hypfs: add interface for diagnose 0x304
2014-01-24 09:40:59 +01:00
isdn
…
ja_JP
Documentation: Update stable address in Chinese and Japanese translations
2014-04-16 14:13:27 -07:00
kbuild
kbuild: fix a typo in a kbuild document
2014-06-18 21:38:18 +02:00
kdump
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2013-07-04 11:40:58 -07:00
ko_KR
Documentation: HOWTO: Updates on subsystem trees, patchwork, -next (vs. -mm) in ko_KR
2014-01-08 15:32:51 -08:00
laptops
Documenation/laptops: rename and update hpfall.c
2014-07-12 11:30:37 -07:00
leds
Documentation/: update 00-INDEX files
2014-02-10 16:01:40 -08:00
m68k
Documentation/: update 00-INDEX files
2014-02-10 16:01:40 -08:00
make
…
memory-devices
…
metag
doc: fix misspellings with 'codespell' tool
2013-05-28 12:02:12 +02:00
mic
misc: mic: Fix endianness issues.
2013-11-27 11:03:38 -08:00
mips
…
misc-devices
Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
2014-01-29 18:56:27 -08:00
mmc
…
mn10300
…
mtd
Merge tag 'for-linus-20140610' of git://git.infradead.org/linux-mtd
2014-06-11 08:35:34 -07:00
namespaces
…
netlabel
…
networking
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2014-06-12 14:27:40 -07:00
nfc
…
parisc
parisc: document the shadow registers
2013-07-09 22:09:19 +02:00
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
platform
Documentation: Add list of laptop models supported by the Compal driver
2014-06-10 19:11:06 -04:00
power
PM / Documentation: Update copyright in suspend-and-cpuhotplug.txt
2014-06-09 22:54:15 +02:00
powerpc
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2014-06-10 18:54:22 -07:00
pps
USB: serial: invoke dcd_change ldisc's handler.
2013-09-26 09:45:40 -07:00
prctl
…
pti
…
ptp
ptp: In the testptp utility, use clock_adjtime from glibc when available
2014-06-16 21:32:31 -07:00
rapidio
rapidio: rework device hierarchy and introduce mport class of devices
2014-04-07 16:36:07 -07:00
RCU
documentation: Update API documentation
2014-04-29 08:38:53 -07:00
s390
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial into next
2014-06-04 08:50:34 -07:00
scheduler
asm/system.h: clean asm/system.h from docs
2014-04-07 16:36:11 -07:00
scsi
qla2xxx: Change copyright year to 2014 in all the source files.
2014-05-19 13:31:02 +02:00
security
Merge branch 'serge-next-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sergeh/linux-security
2014-06-10 10:05:36 -07:00
serial
tty/serial: Add GPIOLIB helpers for controlling modem lines
2014-05-28 12:49:14 -07:00
sh
…
sound
ALSA: hda - Adjust speaker HPF and add LED support for HP Spectre 13
2014-06-25 17:50:24 +02:00
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
kernel/watchdog.c: print traces for all cpus on lockup detection
2014-06-23 16:47:44 -07:00
target
target: Remove TF_CIT_TMPL macro
2013-10-16 13:35:02 -07:00
thermal
drm/nouveau/doc: update the thermal documentation
2014-06-17 14:50:17 +10:00
timers
timer_stats/doc: Fix /proc/timer_stats documentation
2014-05-04 20:46:32 +02:00
tpm
drivers/tpm: add xen tpmfront interface
2013-08-09 10:57:06 -04:00
trace
mm:vmscan: update the trace-vmscan-postprocess.pl for event vmscan/mm_vmscan_lru_isolate
2014-07-03 09:21:54 -07:00
usb
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial into next
2014-06-04 08:50:34 -07:00
vDSO
x86/vdso/doc: Make vDSO examples more portable
2014-06-12 19:01:24 -07:00
video4linux
[media] exynos4-is: Remove support for non-dt platforms
2014-05-23 18:52:54 -03:00
virtual
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial into next
2014-06-04 08:50:34 -07:00
vm
mm: mark remap_file_pages() syscall as deprecated
2014-06-06 16:08:17 -07:00
w1
w1: optional bundling of netlink kernel replies
2014-05-27 13:56:21 -07:00
watchdog
watchdog: it87_wdt: Work around non-working CIR interrupts
2014-03-31 13:33:55 +02:00
wimax
…
x86
Merge branch 'x86/espfix' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next
2014-06-05 07:46:15 -07:00
xtensa
xtensa: remap io area defined in device tree
2014-01-15 00:25:14 +04:00
zh_CN
Merge tag 'driver-core-3.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2014-04-18 16:59:52 -07:00
.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
KEYS: Fix multiple key add into associative array
2013-12-02 11:24:18 +00:00
atomic_ops.txt
arch,doc: Convert smp_mb__*()
2014-04-18 14:20:48 +02:00
bad_memory.txt
…
basic_profiling.txt
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bcache.txt
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2013-07-04 11:40:58 -07:00
binfmt_misc.txt
…
braille-console.txt
…
bt8xxgpio.txt
…
btmrvl.txt
…
BUG-HUNTING
…
bus-virt-phys-mapping.txt
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cachetlb.txt
Documentation: fix typo and update version in cachetlb.txt
2013-08-20 12:46:52 +02:00
Changes
Documentation/Changes: clean up mcelog paragraph
2014-07-12 11:30:36 -07:00
circular-buffers.txt
documentation: Update circular buffer for load-acquire/store-release
2013-12-03 10:08:57 -08:00
clk.txt
clk: Improve clk_ops documentation
2014-05-12 17:08:33 -07:00
coccinelle.txt
Coccinelle: Update information about the minimal version required
2013-07-03 22:58:20 +02:00
CodingStyle
Documentation: expand/clarify debug documentation
2014-06-04 16:54:17 -07:00
cpu-hotplug.txt
Doc/cpu-hotplug: Specify race-free way to register CPU hotplug callbacks
2014-03-20 13:43:40 +01:00
cpu-load.txt
…
cputopology.txt
doc: Documentation/cputopology.txt fix typo
2013-09-04 12:59:47 +02:00
crc32.txt
…
dcdbas.txt
…
debugging-modules.txt
…
debugging-via-ohci1394.txt
firewire: revert to 4 GB RDMA, fix protocols using Memory Space
2014-05-29 15:50:30 +02:00
dell_rbu.txt
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devices.txt
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
2014-04-04 09:50:07 -07:00
digsig.txt
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DMA-API-HOWTO.txt
DMA-API: Update dma_pool_create ()and dma_pool_alloc() descriptions
2014-05-26 17:28:28 -06:00
DMA-API.txt
DMA-API: Capitalize "CPU" consistently
2014-05-26 17:28:27 -06:00
DMA-attributes.txt
doc: spelling error changes
2014-05-05 15:32:05 +02:00
dma-buf-sharing.txt
doc: spelling error changes
2014-05-05 15:32:05 +02:00
DMA-ISA-LPC.txt
DMA-API: Clarify physical/bus address distinction
2014-05-20 16:54:21 -06:00
dmaengine.txt
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dmatest.txt
dmatest: add a 'wait' parameter
2013-11-14 11:04:40 -08:00
dontdiff
Documentation: LLVMLinux: Update Documentation/dontdiff
2014-04-09 13:44:34 -07:00
dynamic-debug-howto.txt
doc: spelling error changes
2014-05-05 15:32:05 +02:00
edac.txt
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial into next
2014-06-04 08:50:34 -07:00
efi-stub.txt
doc: arm64: add description of EFI stub support
2014-04-30 19:57:05 +01:00
eisa.txt
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email-clients.txt
Documentation: add section about git to email-clients.txt
2014-06-29 13:38:33 -07:00
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
gcov: compile specific gcov implementation based on gcc version
2013-11-13 12:09:34 +09:00
highuid.txt
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HOWTO
Documentation: HOWTO: Update broken links to tpp
2013-12-10 23:09:08 -08:00
hsi.txt
Documentation: HSI: Add some general description for the HSI subsystem
2014-05-04 09:49:46 +02:00
hw_random.txt
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hwspinlock.txt
doc: documentation/hwspinlock.txt fix typo
2013-08-27 10:46:02 +02:00
init.txt
…
initrd.txt
…
intel_txt.txt
…
Intel-IOMMU.txt
…
io_ordering.txt
…
io-mapping.txt
doc: fix some typos
2013-12-02 14:48:28 +01:00
iostats.txt
…
IPMI.txt
…
IRQ-affinity.txt
doc: fix a typo about irq affinity
2013-08-20 12:59:18 +02:00
IRQ-domain.txt
genirq: Improve documentation to match current implementation
2014-05-27 10:16:44 +02:00
IRQ.txt
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irqflags-tracing.txt
asm/system.h: clean asm/system.h from docs
2014-04-07 16:36:11 -07:00
isapnp.txt
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java.txt
Documentation: update java sample wrapper for java 7
2014-05-25 12:39:00 -07:00
kernel-doc-nano-HOWTO.txt
kernel-doc: Update references to SGML to refs to XML instead.
2013-05-28 12:02:11 +02:00
kernel-docs.txt
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kernel-parameters.txt
Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-07-19 06:23:27 -10:00
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
mm: introduce kmemleak_update_trace()
2014-06-06 16:08:17 -07:00
kobject.txt
kobject: remove kset from sysfs immediately in kset_unregister()
2013-12-07 21:20:11 -08:00
kprobes.txt
kprobes: Introduce NOKPROBE_SYMBOL() macro to maintain kprobes blacklist
2014-04-24 10:02:56 +02:00
kref.txt
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ldm.txt
…
local_ops.txt
…
lockdep-design.txt
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lockstat.txt
lockstat: Report avg wait and hold times
2013-10-09 08:19:08 +02:00
lockup-watchdogs.txt
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logo.gif
…
logo.txt
…
magic-number.txt
Documentation/serial: Delete obsolete driver documentation
2014-04-16 14:20:34 -07:00
Makefile
…
ManagementStyle
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md.txt
doc: fix some typos in documentations
2013-12-02 14:45:19 +01:00
media-framework.txt
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
2013-07-13 12:09:57 -07:00
memory-barriers.txt
Documentation/memory-barriers.txt: fix important typo re memory barriers
2014-06-06 16:08:11 -07:00
memory-hotplug.txt
mm, hotplug: probe interface is available on several platforms
2014-06-23 16:47:43 -07:00
module-signing.txt
Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
2014-04-06 09:38:07 -07:00
mono.txt
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mutex-design.txt
locking/mutexes: Documentation update/rewrite
2014-06-05 13:29:37 +02:00
nommu-mmap.txt
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numastat.txt
…
oops-tracing.txt
Use 'E' instead of 'X' for unsigned module taint flag.
2014-03-31 14:52:43 +10:30
padata.txt
…
parport-lowlevel.txt
…
parport.txt
…
percpu-rw-semaphore.txt
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phy.txt
drivers: phy: Add support for optional phys
2014-02-05 05:48:43 +00:00
pi-futex.txt
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pinctrl.txt
pinctrl: Fix some typos and grammar issues in the documentation
2014-01-15 13:59:50 +01:00
pnp.txt
…
preempt-locking.txt
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printk-formats.txt
doc: printk-formats: do not mention casts for u64/s64
2014-05-05 15:32:42 +02:00
pwm.txt
pwm: modify PWM_LOOKUP to initialize all struct pwm_lookup members
2014-05-21 11:19:36 +02:00
ramoops.txt
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rbtree.txt
doc: spelling error changes
2014-05-05 15:32:05 +02:00
remoteproc.txt
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rfkill.txt
doc: spelling error changes
2014-05-05 15:32:05 +02:00
robust-futex-ABI.txt
Documentation/robust-futex-API: Count properly to 4
2013-11-30 14:08:28 +01:00
robust-futexes.txt
doc: spelling error changes
2014-05-05 15:32:05 +02:00
rpmsg.txt
…
rt-mutex-design.txt
doc: fix some typos in documentations
2013-12-02 14:45:19 +01:00
rt-mutex.txt
…
rtc.txt
rtc: add ability to push out an existing wakealarm using sysfs
2013-07-03 16:07:54 -07:00
SAK.txt
…
SecurityBugs
…
serial-console.txt
…
sgi-ioc4.txt
…
SM501.txt
…
smsc_ece1099.txt
…
sparse.txt
…
spinlocks.txt
sched: Rename sched.c as sched/core.c in comments and Documentation
2013-06-19 12:58:42 +02:00
stable_api_nonsense.txt
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stable_kernel_rules.txt
stable_kernel_rules: spelling/word usage
2014-04-16 14:13:26 -07:00
static-keys.txt
doc: fix some typos in documentations
2013-12-02 14:45:19 +01:00
SubmitChecklist
Finally eradicate CONFIG_HOTPLUG
2013-06-03 14:20:18 -07:00
SubmittingDrivers
…
SubmittingPatches
Documentation/SubmittingPatches: describe the Fixes: tag
2014-06-06 16:08:11 -07:00
svga.txt
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sysfs-rules.txt
doc: Fix typo in doucmentations
2013-07-25 12:34:15 +02:00
sysrq.txt
sysrq: Allow magic SysRq key functions to be disabled through Kconfig
2013-10-16 13:01:44 -07:00
this_cpu_ops.txt
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unaligned-memory-access.txt
ether_addr_equal: Optimize implementation, remove unused compare_ether_addr
2013-12-06 16:37:43 -05:00
unicode.txt
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unshare.txt
…
vfio.txt
vfio: fix documentation
2013-09-05 16:36:21 -06:00
VGA-softcursor.txt
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vgaarbiter.txt
…
video-output.txt
…
vme_api.txt
VME: Rename vme_slot_get to avoid confusion with reference counting
2013-12-03 11:15:58 -08:00
volatile-considered-harmful.txt
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workqueue.txt
workqueue: Correct/Drop references to gcwq in Documentation
2013-08-21 10:32:09 -04:00
ww-mutex-design.txt
mutex: Add support for wound/wait style locks
2013-06-26 12:10:56 +02:00
xz.txt
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zorro.txt
zorro/UAPI: Disintegrate include/linux/zorro*.h
2013-11-26 11:09:08 +01:00