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68d95b585f
linux/drivers
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Mike Miller 68d95b585f cciss: remove READ_AHEAD define and use block layer defaults 
This patch removes the #define READ_AHEAD 1024 from the driver and uses the
block layer defaults, instead. We have found that under certain workloads
the setting can cause a disk connected to the e200 controller to go offline.
If the disk hiccups the link may try to downshift but the controller is
never notified that the link successfully completed the renegotiation.
We've also found that performance using the block layer default of 32 pages
was on par with the 1024 setting. We tried setting it to zero at one time
based on info from our firmware guys but that killed performance. Turns out
we were talking about 2 different read ahead settings.
Please consider this for inclusion.

Signed-off-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-03-04 11:28:43 +01:00
..
acorn/char Fix default compose table initialization 2008-03-03 14:53:16 -08:00
acpi Merge branches 'release', 'bugzilla-9916', 'bugzilla-9982', 'bugzilla-9989', 'misc', 'suspend', 'thermal', 'thinkpad' and 'tsc' into release 2008-02-21 02:41:58 -05:00
amba
ata block: separate out padding from alignment 2008-03-04 11:18:17 +01:00
atm
auxdisplay
base docbook: fix kernel-api source files 2008-03-03 10:47:14 -08:00
block cciss: remove READ_AHEAD define and use block layer defaults 2008-03-04 11:28:43 +01:00
bluetooth hci_ldisc: fix null pointer deref 2008-02-12 17:54:16 -08:00
cdrom make cdrom.c:check_for_audio_disc() static 2008-03-04 11:28:41 +01:00
char Fix default compose table initialization 2008-03-03 14:53:16 -08:00
clocksource
connector CONNECTOR: make cn_already_initialized static 2008-02-26 18:42:44 -08:00
cpufreq cpufreq: fix kobject reference count handling 2008-02-21 15:27:06 -08:00
cpuidle ACPI, cpuidle: Clarify C-state description in sysfs 2008-02-14 00:09:55 -05:00
crypto [HIFN]: Fix invalid config ifdefs for RNG support 2008-02-15 19:15:05 +08:00
dca DCA: convert struct class_device to struct device. 2008-02-08 15:33:33 -08:00
dio dio: ARRAY_SIZE() cleanup 2008-02-05 09:44:23 -08:00
dma async_tx: replace 'int_en' with operation preparation flags 2008-02-06 10:12:18 -07:00
edac drivers/edac/i3000: document type promotion 2008-02-07 08:42:23 -08:00
eisa
firewire firewire: fix crash in automatic module unloading 2008-03-02 12:35:46 +01:00
firmware dmi: prevent linked list corruption 2008-02-23 17:12:15 -08:00
gpio gpio: handle pca953{4,5,6,7,8} too 2008-02-06 10:41:15 -08:00
hid HID: add USB IDs for MacBook 3rd generation 2008-02-13 17:08:04 +01:00
hwmon hwmon: normal_i2c arrays should be const 2008-02-18 21:58:15 -05:00
i2c i2c-i801: Add support for the ICH10 2008-02-24 20:03:42 +01:00
ide ide: remove stale comments from ide-dma.c (take 2) 2008-02-26 21:50:36 +01:00
ieee1394 ieee1394: sbp2: fix rescan-scsi-bus 2008-02-19 19:57:24 +01:00
infiniband RDMA/nes: Fix interrupt moderation low threshold 2008-02-26 16:24:29 -08:00
input mn10300: add the MN10300/AM33 architecture to the kernel 2008-02-08 09:22:30 -08:00
isdn isdn: fix section mismatch warning for ISACVer 2008-02-09 23:29:28 -08:00
leds PWM LED driver 2008-02-08 09:22:38 -08:00
lguest lguest: accept guest _PAGE_PWT page table entries 2008-02-09 23:24:09 +01:00
macintosh PM: Introduce PM_EVENT_HIBERNATE callback state 2008-02-23 10:40:04 -08:00
mca
md dm-raid1.c: fix NULL dereferences 2008-02-19 15:52:27 -08:00
media V4L/DVB (7219): zoran: Fix namespace conflicts with Zoran 'GPIO_MAX' enum 2008-02-18 12:18:28 -03:00
memstick drivers/memstick/host/tifm_ms.c breakage 2008-02-13 08:16:35 -08:00
message docbook: fix fusion source files 2008-03-03 10:47:14 -08:00
mfd ASIC3 driver 2008-02-07 08:42:23 -08:00
misc Merge branches 'release', 'bugzilla-9916', 'bugzilla-9982', 'bugzilla-9989', 'misc', 'suspend', 'thermal', 'thinkpad' and 'tsc' into release 2008-02-21 02:41:58 -05:00
mmc mmc: extend ricoh_mmc to support Ricoh RL5c476 2008-02-08 09:02:47 +01:00
mtd Introduce path_put() 2008-02-14 21:13:33 -08:00
net [BNX2X]: update version, remove CVS strings 2008-02-28 11:58:49 -08:00
nubus nubus: kill drivers/nubus/nubus_syms.c 2008-02-05 09:44:23 -08:00
of [POWERPC] Create and hook up of_platform_device_shutdown 2008-02-06 16:29:59 +11:00
oprofile d_path: Make get_dcookie() use a struct path argument 2008-02-14 21:17:08 -08:00
parisc iommu sg merging: parisc: make iommu respect the segment size limits 2008-02-05 09:44:10 -08:00
parport parport: section fixup 2008-02-13 16:21:19 -08:00
pci docbook: fix kernel-api source files 2008-03-03 10:47:14 -08:00
pcmcia PCI: drivers/pcmcia/i82092.c: fix up after pci_bus_region changes 2008-02-21 15:34:35 -08:00
pnp Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2008-02-14 21:29:46 -08:00
power Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2008-02-07 09:45:58 -08:00
ps3 [POWERPC] PS3: Update sys-manager button events 2008-02-14 22:11:01 +11:00
rapidio docbook: fix rapidio source files 2008-03-03 10:47:13 -08:00
rtc rtc-cmos: display HPET emulation mode 2008-02-23 17:12:14 -08:00
s390 Fix default compose table initialization 2008-03-03 14:53:16 -08:00
sbus
scsi docbook: fix scsi source file 2008-03-03 10:47:13 -08:00
serial Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6 2008-02-29 08:41:13 -08:00
sh maple: fix device detection 2008-02-26 14:12:09 +09:00
sn
spi spi: pxa2xx_spi clock polarity fix 2008-02-23 17:12:14 -08:00
ssb SSB PCI core driver: use new SPROM data structure 2008-02-28 09:29:58 -05:00
tc
telephony
thermal thermal: use ERR_PTR for returning error 2008-02-15 18:21:30 -05:00
uio UIO: fix Greg's stupid changes 2008-02-21 15:27:07 -08:00
usb docbook: fix usb source files 2008-03-03 10:47:14 -08:00
video drivers/video/uvesafb.c: fix section mismatch warning in param_set_scroll() 2008-02-23 17:12:15 -08:00
virtio virtio: add missing #include <linux/delay.h> 2008-02-06 10:41:21 -08:00
w1 DS1WM: decouple host IRQ and INTR active state settings 2008-02-07 08:42:06 -08:00
watchdog [WATCHDOG] HP ProLiant WatchDog driver 2008-02-18 17:06:21 +00:00
xen
zorro
Kconfig memstick: initial commit for Sony MemoryStick support 2008-02-09 11:08:34 -08:00
Makefile memstick: initial commit for Sony MemoryStick support 2008-02-09 11:08:34 -08:00