Hans Verkuil ee6869afc9 V4L/DVB: v4l2: add core serialization lock ... Drivers can optionally set a pointer to a mutex in struct video_device. The core will use that to lock before calling open, read, write, unlocked_ioctl, poll, mmap or release. Updated the documentation as well and ensure that v4l2-event knows about the lock: it will unlock it before doing a blocking wait on an event and relock it afterwards. Ensure that the 'video_is_registered' check is done when the lock is held: a typical disconnect will take the lock as well before unregistering the device nodes, so to prevent race conditions the video_is_registered check should also be done with the lock held. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>		2010-10-21 01:06:14 -02:00
..
ABI	USB: gadget: storage: optional SCSI WRITE FUA bit	2010-08-10 14:35:42 -07:00
accounting
acpi	ACPI: introduce module parameter acpi.aml_debug_output	2010-08-14 23:02:14 -04:00
aoe	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
arm	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
auxdisplay
blackfin	Blackfin: document SPI CS limitations with CPHA=0	2010-08-06 12:55:52 -04:00
block	cfq-iosched: Documentation help for new tunables	2010-08-23 12:25:29 +02:00
blockdev	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
cdrom	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
cgroups	cfq-iosched: Documentation help for new tunables	2010-08-23 12:25:29 +02:00
connector
console
cpu-freq
cpuidle
cris
crypto
development-process	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
device-mapper	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
DocBook	V4L/DVB: V4L Doc: removed duplicate link	2010-10-21 01:05:57 -02:00
driver-model
dvb	V4L/DVB: Support or LME2510(C) DM04/QQBOX USB DVB-S BOXES	2010-10-21 01:04:54 -02:00
early-userspace
fault-injection
fb	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
filesystems	bkl: Remove locked .ioctl file operation	2010-08-14 00:24:24 +02:00
firmware_class	firmware: Update hotplug script	2010-08-05 13:53:34 -07:00
frv
hwmon	hwmon: (adm1031) Replace update_rate sysfs attribute with update_interval	2010-09-17 17:24:14 +02:00
i2c	i2c: Add support for custom probe function	2010-08-11 18:20:56 +02:00
i2o
ia64	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
ide
infiniband	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
input	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2010-08-04 15:31:02 -07:00
ioctl	V4L/DVB: Documentation: update now that the vtx/videotext API has been removed	2010-10-21 01:05:48 -02:00
isdn	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2010-08-04 15:31:02 -07:00
ja_JP	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
kbuild	kbuild: drop unifdef-y support	2010-08-14 22:26:52 +02:00
kdump
ko_KR	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
kvm	KVM: Document KVM_GET_SUPPORTED_CPUID2 ioctl	2010-08-02 06:40:50 +03:00
laptops	thinkpad-acpi: untangle ACPI/vendor backlight selection	2010-08-16 11:54:50 -04:00
lguest	lguest: clean up warnings in demonstration launcher.	2010-08-27 08:39:51 +09:30
m68k
make
mips
misc-devices	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
mmc	mmc: add erase, secure erase, trim and secure trim operations	2010-08-12 08:43:30 -07:00
mn10300
mtd	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
namespaces
netlabel
networking	e1000e.txt: Add e1000e documentation	2010-10-05 13:28:07 -07:00
parisc
PCI	Documentation: pci.txt: fix typo	2010-07-11 22:17:45 +02:00
pcmcia	pcmcia: do not use io_req_t when calling pcmcia_request_io()	2010-08-03 09:04:11 +02:00
power	regulator: Update e-mail address for Liam Girdwood	2010-09-01 12:59:34 +01:00
powerpc	Documentation: fix ozlabs.org mailing list address	2010-08-20 09:55:41 -07:00
pps
prctl
RCU	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
s390	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
scheduler
scsi	Documentation: move SCSI parameters to their own text file	2010-08-14 16:20:59 -07:00
serial	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
sh
sound	ALSA: hda - Add a new hp-laptop model for Conexant 5066, tested on HP G60	2010-09-02 11:49:17 +02:00
sparc
spi
sysctl	oom: enable oom tasklist dump by default	2010-08-09 20:44:56 -07:00
telephony	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
thermal
timers	Documentation: Add timers/timers-howto.txt	2010-08-04 11:00:45 +02:00
trace	vmscan: tracing: add a postprocessing script for reclaim-related ftrace events	2010-08-09 20:45:00 -07:00
uml	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
usb	USB: gadget: g_multi: added documentation and INF files	2010-08-10 14:35:37 -07:00
video4linux	V4L/DVB: v4l2: add core serialization lock	2010-10-21 01:06:14 -02:00
vm	page-types.c: fix name of unpoison interface	2010-10-07 09:41:24 +02:00
w1	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
watchdog	watchdog: docs: add an entry for imx2_wdt	2010-07-01 16:02:55 +00:00
wimax
x86	x86, olpc: Add support for calling into OpenFirmware	2010-06-18 14:54:36 -07:00
zh_CN	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
.gitignore
00-INDEX	mmc: add erase, secure erase, trim and secure trim operations	2010-08-12 08:43:30 -07:00
apparmor.txt	AppArmor: update Maintainer and Documentation	2010-08-02 15:35:15 +10:00
applying-patches.txt
atomic_ops.txt
bad_memory.txt
basic_profiling.txt
binfmt_misc.txt	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
BUG-HUNTING
bus-virt-phys-mapping.txt	documentation: fix almost duplicate filenames (IO/io-mapping.txt)	2010-07-20 17:49:30 +00:00
cachetlb.txt
Changes	Documentation update broken web addresses	2010-07-11 21:55:42 +02:00
circular-buffers.txt
coccinelle.txt	Documentation: fix ubuntu distro name	2010-06-29 15:27:00 +02:00
CodingStyle
cpu-hotplug.txt	documentation: fix erroneous email address.	2010-08-11 23:04:10 +09:30
cpu-load.txt
cputopology.txt
credentials.txt	CRED: Fix __task_cred()'s lockdep check and banner comment	2010-07-29 15:16:18 -07:00
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
devices.txt	devices.txt: Remove the old obsolete vtx device nodes	2010-10-21 01:05:49 -02:00
DMA-API-HOWTO.txt	Documentation: DMA-API-HOWTO.txt: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN	2010-08-14 11:56:46 -07:00
DMA-API.txt	dma-mapping: remove dma_is_consistent API	2010-08-11 08:59:21 -07:00
DMA-attributes.txt
DMA-ISA-LPC.txt
dmaengine.txt
dontdiff
dynamic-debug-howto.txt
edac.txt
eisa.txt
email-clients.txt
feature-removal-schedule.txt	V4L/DVB: Deprecate stradis driver	2010-10-21 01:06:13 -02:00
flexible-arrays.txt
futex-requeue-pi.txt
gcov.txt
gpio.txt	gpio: doc updates	2010-09-09 18:57:24 -07:00
highuid.txt
HOWTO	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
hw_random.txt
init.txt
initrd.txt
intel_txt.txt	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
Intel-IOMMU.txt
io_ordering.txt
io-mapping.txt
iostats.txt
IPMI.txt
IRQ-affinity.txt
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kernel-doc-nano-HOWTO.txt	docbook: warn on unused doc entries	2010-09-11 16:49:21 -07:00
kernel-docs.txt	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
kernel-parameters.txt	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6	2010-09-07 16:00:17 -07:00
keys-request-key.txt
keys.txt
kmemcheck.txt
kmemleak.txt
kobject.txt
kprobes.txt	Documentation: Mention that KProbes is supported on MIPS	2010-08-05 13:26:30 +01:00
kref.txt
ldm.txt	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
leds-class.txt
leds-lp3944.txt
local_ops.txt
lockdep-design.txt
lockstat.txt
logo.gif
logo.txt
magic-number.txt
Makefile
ManagementStyle
mca.txt
md.txt	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
memory-barriers.txt
memory-hotplug.txt
memory.txt
mono.txt
mutex-design.txt	mutex: Fix annotations to include it in kernel-locking docbook	2010-09-03 08:19:51 +02:00
nmi_watchdog.txt
nommu-mmap.txt
numastat.txt
oops-tracing.txt
padata.txt	Documentation/padata.txt: fix typos etc.	2010-08-11 08:59:18 -07:00
parport-lowlevel.txt
parport.txt
pi-futex.txt
pnp.txt
preempt-locking.txt
printk-formats.txt
prio_tree.txt
rbtree.txt
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rt-mutex-design.txt	variable name fix to Documentation/rt-mutex-design.txt	2010-06-05 17:39:09 +02:00
rt-mutex.txt
rtc.txt
SAK.txt
SecurityBugs
SELinux.txt
serial-console.txt
sgi-ioc4.txt
sgi-visws.txt
SM501.txt
Smack.txt
sparse.txt	update email address	2010-07-19 10:56:54 +02:00
spinlocks.txt
stable_api_nonsense.txt
stable_kernel_rules.txt
SubmitChecklist
SubmittingDrivers	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
SubmittingPatches	SubmittingPatches: add more about patch descriptions	2010-08-09 20:45:05 -07:00
svga.txt
sysfs-rules.txt
sysrq.txt
tomoyo.txt	TOMOYO: Update version to 2.3.0	2010-08-02 15:35:10 +10:00
unaligned-memory-access.txt
unicode.txt
unshare.txt
VGA-softcursor.txt
vgaarbiter.txt
video-output.txt
volatile-considered-harmful.txt
workqueue.txt	workqueue: add documentation	2010-09-13 10:26:52 +02:00
zorro.txt