1
linux/drivers
Robert Schedel 71a35fe2a3 V4L/DVB (7830): dvb_ca_en50221: Fix High CPU load in 'top' due to budget_av slot polling
This change addresses kernel bug #10459: In kernel 2.6.25 the
budget_av driver polls for an CI slot in 100ms intervals (because no
interrupt solution for budget_av cards is feasible due to HW reasons).
If no CI/CAM is connected to the DVB card, polling times out only after 250ms.
This periodic polling leads to high CPU load.

The change increases the polling interval for empty slots from 100ms to 5s.
Intervals for remaining slot states (invalid, in progress, ready) are unchanged,
as they are either temporary conditions or no timeout should occur.

Signed-off-by: Robert Schedel <r.schedel@yahoo.de>
Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:54:02 -03:00
..
accessibility Kconfig: improved help for CONFIG_ACCESSIBILITY 2008-05-08 10:46:55 -07:00
acorn/char
acpi
amba
ata pata_atiixp: Don't disable 2008-05-06 11:43:44 -04:00
atm
auxdisplay
base Fix bogus warning in sysdev_driver_register() 2008-05-06 13:22:42 -07:00
block block: avoid duplicate calls to get_part() in disk stat code 2008-05-07 10:15:46 +02:00
bluetooth hci_usb.h: fix hard-to-trigger race 2008-05-02 16:45:10 -07:00
cdrom
char drivers/char/synclink_gt.c: don't return an uninitialised local 2008-05-13 08:02:26 -07:00
clocksource
connector
cpufreq
cpuidle
crypto
dca
dio
dma
edac dev_name introduction fall out fix 2008-05-05 15:08:38 -07:00
eisa
firewire Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-05-02 13:52:35 -07:00
firmware
gpio gpio: pca953x: add support for pca9555 I2C I/O expander 2008-05-01 08:04:01 -07:00
hid
hwmon Merge branch 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6 2008-05-01 08:28:26 -07:00
i2c [MIPS] Alchemy: SMBus resource fix 2008-05-12 16:46:50 +01:00
ide m68k: Fix falconide `data_adr' typo 2008-05-05 12:36:34 -07:00
ieee1394 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2008-05-01 11:31:38 -07:00
infiniband IB/ehca: Wait for async events to finish before destroying QP 2008-05-07 11:35:06 -07:00
input Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 2008-05-09 08:07:58 -07:00
isdn isdn: hysdn_procconf.c build fix 2008-05-01 08:03:59 -07:00
leds
lguest lguest: make Launcher see device status updates 2008-05-02 21:50:54 +10:00
macintosh [POWERPC] macintosh: ADB driver: adb_handler_sem semaphore to mutex 2008-05-05 16:47:13 +10:00
mca
md md: fix raid5 'repair' operations 2008-05-13 08:02:24 -07:00
media V4L/DVB (7830): dvb_ca_en50221: Fix High CPU load in 'top' due to budget_av slot polling 2008-05-14 02:54:02 -03:00
memstick
message
mfd
misc drivers/misc/sgi-xp: replace partid_t with a short 2008-05-13 08:02:23 -07:00
mmc mmc: make one-bit signed bitfields unsigned 2008-05-13 08:02:23 -07:00
mtd mtd: solutionengine flash map depends on solution engine mach group. 2008-05-08 19:51:40 +09:00
net strip: Fix termios assumption 2008-05-12 07:27:38 -07:00
nubus
of
oprofile
parisc
parport
pci ACPI/PCI: another multiple _OSC memory leak fix 2008-05-13 09:51:54 -07:00
pcmcia pcmcia: replace remaining __FUNCTION__ occurrences 2008-05-01 08:04:00 -07:00
pnp PNP: set IRQ index in sysfs "set irq" interface 2008-05-13 08:02:24 -07:00
power Merge git://git.infradead.org/battery-2.6 2008-05-03 10:57:57 -07:00
ps3 [POWERPC] PS3: Remove unsupported wakeup sources 2008-05-02 15:00:44 +10:00
rapidio
rtc rtc: m41t80: include <linux/kernel.h> for printk() 2008-05-13 08:02:26 -07:00
s390 [S390] tty3270: fix put_char fail/success conversion. 2008-05-07 09:23:02 +02:00
sbus sbus: Fix bpp driver build. 2008-05-05 00:33:58 -07:00
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6 2008-05-13 11:24:51 -07:00
serial cris: Fix compile failure due to typo in serial driver 2008-05-12 07:27:38 -07:00
sh
sn
spi spi_mpc83xx: much improved driver 2008-05-13 08:02:25 -07:00
ssb
tc
telephony
thermal
uio
usb Fix c67x00-ll-hpi compilation failure (bug #10627) 2008-05-12 07:30:36 -07:00
video vt/fbcon: fix background color on line feed 2008-05-13 08:02:26 -07:00
virtio virtio: explicit advertisement of driver features 2008-05-02 21:50:50 +10:00
w1
watchdog
xen
zorro
Kconfig
Makefile