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23869e2368
linux/drivers
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Andres Salomon 23869e2368 V4L/DVB (6235): cafe_ccic: default to allocating DMA buffers at probe time 
By default, we allocate DMA buffers when actually reading from the video
capture device.  On a system with 128MB or 256MB of ram, it's very easy
for that memory to quickly become fragmented.  We've had users report
having 30+MB of memory free, but the cafe_ccic driver is still unable to
allocate DMA buffers.

Our workaround has been to make use of the 'alloc_bufs_at_load' parameter
to allocate DMA buffers during device probing.  This patch makes DMA
buffer allocation happen during device probe by default, and changes
the parameter to 'alloc_bufs_at_read'.  The camera hardware is there,
if the cafe_ccic driver is enabled/loaded it should do its best to ensure
that the camera is actually usable; delaying DMA buffer allocation
saves an insignicant amount of memory, and causes the driver to be much
less useful.

Signed-off-by: Andres Salomon <dilinger@debian.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:14:49 -03:00
..
acorn/char Remove the arm26 port 2007-07-31 15:39:39 -07:00
acpi ACPI: CONFIG_ACPI_SLEEP=n power off regression in 2.6.23-rc8 (NOT in rc7) 2007-09-25 17:58:52 -04:00
amba
ata sata_mv: correct S/G table limits 2007-10-09 12:38:26 -07:00
atm Add some help texts to recently-introduced kconfig items 2007-08-18 09:52:50 -07:00
auxdisplay cfag12864b fix 2007-08-22 19:52:46 -07:00
base Driver core: fix SYSF_DEPRECATED breakage for nested classdevs 2007-10-07 16:42:22 -07:00
block Fix "Fix DAC960 driver on machines which don't support 64-bit DMA" 2007-09-19 11:24:16 -07:00
bluetooth [Bluetooth] Add missing stat.byte_rx counter modification 2007-09-09 08:39:27 +02:00
cdrom cdrom_open() forgets to unlock on -EROFS failure exits 2007-09-26 08:20:44 +02:00
char Correct Makefile rule for generating custom keymap 2007-10-08 16:06:51 -07:00
clocksource x86_64: fix typo in acpi_pm.c 2007-07-21 18:37:12 -07:00
connector Use menuconfig objects: connector 2007-07-16 09:05:40 -07:00
cpufreq [CPUFREQ] Restore previously used governor on a hot-replugged CPU 2007-07-13 01:29:51 -04:00
crypto Add some help texts to recently-introduced kconfig items 2007-08-18 09:52:50 -07:00
dio
dma [IOAT]: ioatdma needs to to play nice in a multi-dma-client world 2007-08-26 18:35:40 -07:00
edac drivers/edac: fix e752x correct return code 2007-09-11 17:21:19 -07:00
eisa
fc4
firewire firewire: point to migration document 2007-10-07 13:48:41 +02:00
firmware edd: switch to pci_get based API 2007-07-16 09:05:42 -07:00
hid Add some help texts to recently-introduced kconfig items 2007-08-18 09:52:50 -07:00
hwmon hwmon: End of I/O region off-by-one 2007-09-09 10:38:37 -04:00
i2c i2c-algo-bit: Read block data bugfix 2007-09-09 22:29:14 +02:00
ide Fix non-terminated PCI match table in PowerMac IDE 2007-10-06 09:32:56 -07:00
ieee1394 ieee1394: ohci1394: fix initialization if built non-modular 2007-09-20 21:19:45 +02:00
infiniband IB/mlx4: Fix data corruption triggered by wrong headroom marking order 2007-09-23 13:03:22 -07:00
input Input: xpad - fix dependancy on LEDS class 2007-09-28 15:38:12 -07:00
isdn ISDN: Fix data access out of array bounds 2007-10-08 13:01:21 -07:00
kvm KVM: Fix virtualization menu help text 2007-09-22 12:55:18 -07:00
leds leds: Convert from struct class_device to struct device 2007-07-16 01:15:51 +01:00
lguest fix modules oopsing in lguest guests 2007-09-25 08:51:04 -07:00
macintosh [POWERPC] Fix undefined reference to device_power_up/resume 2007-08-25 16:58:27 +10:00
mca
md raid5: fix 2 bugs in ops_complete_biofill 2007-09-24 13:23:35 -07:00
media V4L/DVB (6235): cafe_ccic: default to allocating DMA buffers at probe time 2007-10-09 22:14:49 -03:00
message Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6 2007-08-06 17:48:34 -07:00
mfd some kmalloc/memset ->kzalloc (tree wide) 2007-07-19 10:04:50 -07:00
misc Pull thinkpad into release branch 2007-09-17 00:58:40 -04:00
mmc bug in AT91 MCI suspend routines 2007-09-11 17:21:51 +02:00
mtd pci: fix unterminated pci_device_id lists 2007-09-19 11:24:17 -07:00
net r8169: revert part of 6dccd16b7c 2007-10-05 14:05:48 -04:00
nubus some kmalloc/memset ->kzalloc (tree wide) 2007-07-19 10:04:50 -07:00
of Create drivers/of/platform.c 2007-07-20 14:25:51 +10:00
oprofile [CELL] oprofile: add support to OProfile for profiling CELL BE SPUs 2007-07-20 21:42:24 +02:00
parisc serial: add early_serial_setup() back to header file 2007-07-18 08:38:22 -07:00
parport parport_pc locking fix 2007-07-31 15:39:37 -07:00
pci Fix bogus PCI quirk for e100 2007-09-28 16:21:10 -07:00
pcmcia pcmcia: give socket time to power down 2007-07-31 15:39:38 -07:00
pnp PNP: remove SMCf010 quirk 2007-09-11 17:21:19 -07:00
power [PATCH] missing null termination in power supply uevent 2007-09-21 01:22:23 +04:00
ps3
rapidio some kmalloc/memset ->kzalloc (tree wide) 2007-07-19 10:04:50 -07:00
rtc rtc: rtc-ds1553.c should use resource_size_t for base address 2007-09-19 11:24:17 -07:00
s390 Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6 2007-09-11 07:46:09 -07:00
sbus Videopix Frame Grabber: Fix unreleased lock in vfc_debug() 2007-07-31 15:39:43 -07:00
scsi [SCSI] megaraid_old: fix READ_CAPACITY 2007-10-04 12:08:49 -04:00
serial Add manufacturer and card id of teltonica pcmcia modems 2007-10-07 16:28:43 -07:00
sh some kmalloc/memset ->kzalloc (tree wide) 2007-07-19 10:04:50 -07:00
sn some kmalloc/memset ->kzalloc (tree wide) 2007-07-19 10:04:50 -07:00
spi spi_mpc83xx: hang fix 2007-09-11 17:21:19 -07:00
tc zs: move to the serial subsystem 2007-07-18 08:38:22 -07:00
telephony some kmalloc/memset ->kzalloc (tree wide) 2007-07-19 10:04:50 -07:00
uio UIO: Hilscher CIF card driver 2007-07-18 15:57:16 -07:00
usb Revert "usb-storage: implement autosuspend" 2007-09-13 06:01:24 -07:00
video intelfb: Fix bug in DPLL disable 2007-09-19 11:24:18 -07:00
w1 missing null termination in one wire uevent 2007-09-25 08:51:04 -07:00
xen xenbus_xs.c: fix a use-after-free 2007-07-26 11:35:17 -07:00
zorro zorro: Make sysfs config attribute read-only 2007-08-22 19:52:45 -07:00
Kconfig Begin to consolidate of_device.c 2007-07-20 13:39:59 +10:00
Makefile [WATCHDOG] Fix pcwd_init_module crash 2007-07-29 18:58:39 +00:00