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Hans Verkuil 879aa24d63 [media] V4L: improve the BKL replacement heuristic 
The BKL replacement mutex had some serious performance side-effects on
V4L drivers. It is replaced by a better heuristic that works around the
worst of the side-effects.

Read the v4l2-dev.c comments for the whole sorry story. This is a
temporary measure only until we can convert all v4l drivers to use
unlocked_ioctl.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
 		2010-12-01 20:10:19 -02:00
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accessibility
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acpi ACPI: debugfs custom_method open to non-root 2010-11-13 09:52:16 -08:00
amba
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ata drivers/ata/pata_octeon_cf.c: delete double assignment 2010-11-12 17:10:55 -05:00
atm solos: Refuse to upgrade firmware with older FPGA. It doesn't work. 2010-11-08 12:17:05 -08:00
auxdisplay
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base Merge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6 2010-10-29 15:09:56 -07:00
block Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block 2010-11-12 08:52:47 -08:00
bluetooth Bluetooth: Add MacBookAir3,1(2) support 2010-11-09 01:08:53 -02:00
cdrom cdrom: gdrom: ctrl_in/outX to __raw_read/writeX conversion. 2010-10-27 14:33:39 +09:00
char Fix gcc 4.5.1 miscompiling drivers/char/i8k.c (again) 2010-11-15 13:27:06 -08:00
clocksource ARM: shmobile: remove sh_timer_config clk member 2010-10-31 10:40:39 -04:00
connector connector: remove lazy workqueue creation 2010-10-24 14:20:01 -07:00
cpufreq
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cpuidle
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crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2010-11-13 09:55:56 -08:00
dca
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dio
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dma drivers/dma/Kconfig: add part number for Topcliff. 2010-10-29 14:14:02 -07:00
edac Merge branch 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/i7core 2010-10-26 10:13:48 -07:00
eisa
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firewire Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2010-11-05 14:17:22 -07:00
firmware dmi: log board, system, and BIOS information 2010-10-27 18:03:05 -07:00
gpio gpio: Add VIA VX855 GPIO driver 2010-10-29 00:29:51 +02:00
gpu drm/ttm: Be consistent on ttm_bo_init() failures 2010-11-10 11:52:19 +10:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2010-10-25 07:59:01 -07:00
hwmon hwmon: (w83795) Check for BEEP pin availability 2010-11-15 21:38:57 +01:00
i2c i2c: Sanity checks on adapter registration 2010-11-15 22:40:38 +01:00
ide ide: clean up timed out request handling 2010-10-26 10:17:30 -07:00
idle Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6 2010-10-26 17:28:07 -07:00
ieee802154
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infiniband convert get_sb_single() users 2010-10-29 04:16:28 -04:00
input Input: do not pass injected events back to the originating handler 2010-11-11 01:01:26 -08:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2010-11-05 15:25:48 -07:00
leds drivers/leds/leds-gpio.c: properly initialize return value 2010-11-12 07:55:32 -08:00
lguest
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macintosh drivers/macintosh/adb-iop.c: flags should be unsigned long 2010-11-12 07:55:30 -08:00
mca
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md block: read i_size with i_size_read() 2010-11-10 14:40:53 +01:00
media [media] V4L: improve the BKL replacement heuristic 2010-12-01 20:10:19 -02:00
memstick
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message Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2010-10-22 17:34:15 -07:00
mfd mfd: Fix a memory leak when unload mc13xxx-core module 2010-10-29 00:30:43 +02:00
misc i2c: Remove obsolete cleanup for clientdata 2010-11-15 22:40:38 +01:00
mmc mfd: Adding twl6030 mmc card detect support for MMC1 2010-10-29 00:29:59 +02:00
mtd Merge git://git.infradead.org/mtd-2.6 2010-10-30 08:31:35 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2010-11-12 17:17:55 -08:00
nubus
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of
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oprofile Merge branches 'perf-fixes-for-linus' and 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-10-30 11:43:26 -07:00
parisc Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 2010-10-28 09:24:14 -07:00
parport Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-10-24 13:41:39 -07:00
pci Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2010-11-15 14:01:33 -08:00
pcmcia drivers/pcmcia/soc_common.c: Use printf extension %pV 2010-11-10 14:31:28 +01:00
platform Remove duplicate includes from many files 2010-10-27 18:03:18 -07:00
pnp Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2010-10-26 17:28:37 -07:00
power power: Revert "power_supply: Mark twl4030_charger as broken" 2010-10-29 00:30:44 +02:00
pps
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ps3
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rapidio rapidio: use resource_size() 2010-11-12 07:55:30 -08:00
regulator regulator: max8998 BUCK1/2 voltage change with use of GPIOs 2010-10-29 00:30:15 +02:00
rtc Merge branches 'sh/rtc' and 'common/clkfwk' into sh/urgent 2010-11-10 18:15:44 +09:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2010-11-12 17:17:55 -08:00
sbus Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-10-25 08:19:14 -07:00
scsi block: remove REQ_HARDBARRIER 2010-11-10 14:54:09 +01:00
serial Revert "8250: Fix tcsetattr to avoid ioctl(TIOCMIWAIT) hang" 2010-11-13 09:59:19 -08:00
sfi
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sh sh: intc: Fix up build failure introduced by radix tree changes. 2010-11-15 14:30:30 +09:00
sn
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spi Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6 2010-11-01 07:50:43 -04:00
ssb
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staging i2c: Drivers shouldn't include <linux/i2c-id.h> 2010-11-15 22:40:38 +01:00
tc
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telephony Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
thermal
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tty n_gsm: Fix length handling 2010-11-11 11:06:09 -08:00
uio Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-10-24 13:41:39 -07:00
usb Merge branch 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 2010-11-12 17:13:28 -08:00
uwb UWB: Return UWB_RSV_ALLOC_NOT_FOUND rather than crashing on NULL dereference if kzalloc fails 2010-11-11 07:14:07 -08:00
vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-10-23 11:47:02 -07:00
video Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging 2010-11-15 14:03:17 -08:00
virtio
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vlynq
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w1 w1: don't allow arbitrary users to remove w1 devices 2010-10-27 18:03:17 -07:00
watchdog WATCHDOG: octeon-wdt: Use I/O clock rate for timing calculations. 2010-10-29 19:08:42 +01:00
xen Merge branch 'upstream/core' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen 2010-11-12 16:01:55 -08:00
zorro
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Kconfig
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Makefile TTY: create drivers/tty and move the tty core files there 2010-11-05 08:10:33 -07:00