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Lars Ellenberg ebfd5d8f71 drbd: drbd_al_being_io: short circuit to reduce latency 
A request hitting an already "hot" extent should proceed right away,
even if some other requests need to wait for pending transactions.

Without that short-circuit, several simultaneous make_request contexts
race for committing the transaction, possibly penalizing the innocent.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2013-03-22 18:14:00 -06:00
..
accessibility
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acpi
Fixes:
2013-03-12 20:25:53 -07:00
amba
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
2013-03-03 11:54:39 -08:00
ata
ACPI / glue: Drop .find_bridge() callback from struct acpi_bus_type
2013-03-04 14:23:40 +01:00
atm
hlist: drop the node parameter from iterators
2013-02-27 19:10:24 -08:00
auxdisplay
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base
ACPI and power management fixes for 3.9-rc2
2013-03-07 14:54:28 -08:00
bcma
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
2013-03-01 13:52:03 -05:00
block
drbd: drbd_al_being_io: short circuit to reduce latency
2013-03-22 18:14:00 -06:00
bluetooth
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2013-02-21 17:40:58 -08:00
bus
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cdrom
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char
Simple virtio-rng fix.
2013-03-12 20:28:45 -07:00
clk
clk: Tegra: Remove duplicate smp_twd clock
2013-03-04 17:16:37 -08:00
clocksource
ImgTec Meta architecture changes for v3.9-rc1
2013-03-03 12:06:09 -08:00
connector
proc connector: reject unprivileged listener bumps
2013-02-27 13:08:35 -05:00
cpufreq
cpufreq / intel_pstate: Do not load on VM that does not report max P state.
2013-03-06 23:40:11 +01:00
cpuidle
arm-soc: soc-specific updates
2013-02-21 15:27:22 -08:00
crypto
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2013-02-25 15:56:15 -08:00
dca
dca: convert to idr_alloc()
2013-02-27 19:10:15 -08:00
devfreq
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dio
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dma
Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
2013-03-03 10:20:22 -08:00
edac
Merge branch 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac
2013-02-28 20:42:33 -08:00
eisa
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extcon
Char/Misc driver patches for 3.9-rc1
2013-02-21 13:57:13 -08:00
firewire
firewire: convert to idr_alloc()
2013-02-27 19:10:15 -08:00
firmware
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2013-03-09 16:51:13 -08:00
gpio
arm-soc fixes for 3.9-rc2
2013-03-12 10:21:38 -07:00
gpu
Merge branch 'drm-nouveau-fixes-3.9' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-next
2013-03-11 13:53:58 +10:00
hid
Merge branch 'for-3.9/upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
2013-03-08 14:42:52 -08:00
hsi
hsi: fix kernel-doc warnings
2013-03-01 13:39:00 -08:00
hv
Drivers: hv: vmbus: Use the new infrastructure for delivering VMBUS interrupts
2013-02-27 10:15:53 -08:00
hwmon
hwmon: (pmbus/ltc2978) Fix temperature reporting
2013-03-14 09:03:51 -07:00
hwspinlock
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i2c
idr: remove MAX_IDR_MASK and move left MAX_IDR_* into idr.c
2013-02-27 19:10:20 -08:00
ide
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-02-26 20:16:07 -08:00
idle
Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2013-02-22 19:25:09 -08:00
iio
First round of iio fixes post the 3.9 merge window.
2013-03-06 05:48:24 +08:00
infiniband
mlx4: remove leftover idr_pre_get() call
2013-03-13 15:21:46 -07:00
input
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2013-03-11 07:49:37 -07:00
iommu
iommu, x86: Add DMA remap fault reason
2013-03-06 09:41:51 +01:00
ipack
Char/Misc driver patches for 3.9-rc1
2013-02-21 13:57:13 -08:00
irqchip
irqchip: fix typo when moving gic_raise_softirq()
2013-03-04 17:15:33 -08:00
isdn
drivers/isdn: checkng length to be sure not memory overflow
2013-03-08 00:35:44 -05:00
leds
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
2013-02-26 09:29:02 -08:00
lguest
All trivial, thanks to the stuff which didn't quite make it time.
2013-02-26 14:49:12 -08:00
macintosh
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2013-02-23 17:09:55 -08:00
mailbox
mailbox, pl320-ipc: remove __init from probe function
2013-03-04 14:23:11 +01:00
md
md updates for 3.9
2013-03-05 17:22:08 -08:00
media
arm-soc: late OMAP changes
2013-02-28 20:00:40 -08:00
memory
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memstick
memstick: move the dereference below the NULL test
2013-02-27 19:10:23 -08:00
message
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mfd
mfd: twl4030-madc: Remove __exit_p annotation
2013-03-15 07:42:22 +01:00
misc
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
mmc
Merge branches 'devel-stable', 'fixes' and 'mmci' into for-linus
2013-03-03 00:32:50 +00:00
mtd
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
net
rrunner.c: fix possible memory leak in rr_init_one()
2013-03-10 16:42:23 -04:00
nfc
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
2013-02-18 13:47:13 -05:00
ntb
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nubus
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of
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2013-02-21 17:40:58 -08:00
oprofile
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
parisc
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-02-26 20:16:07 -08:00
parport
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2013-02-21 17:54:03 -08:00
pci
ACPI / glue: Add .match() callback to struct acpi_bus_type
2013-03-04 14:23:40 +01:00
pcmcia
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2013-02-21 17:40:58 -08:00
pinctrl
arm-soc: device tree conversions
2013-02-21 15:38:49 -08:00
platform
Platform: x86: chromeos_laptop : Add basic platform data for atmel devices
2013-03-08 16:03:29 -08:00
pnp
ACPI / glue: Add .match() callback to struct acpi_bus_type
2013-03-04 14:23:40 +01:00
power
power: convert to idr_alloc()
2013-02-27 19:10:18 -08:00
pps
drivers/pps/clients/pps-gpio.c: use devm_kzalloc
2013-02-27 19:10:23 -08:00
ps3
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ptp
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pwm
pwm: Changes for v3.9-rc1
2013-02-26 09:34:29 -08:00
rapidio
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regulator
Merge remote-tracking branch 'regulator/fix/twl' into tmp
2013-03-05 10:12:43 +08:00
remoteproc
remoteproc: convert to idr_alloc()
2013-02-27 19:10:18 -08:00
rpmsg
rpmsg: convert to idr_alloc()
2013-02-27 19:10:18 -08:00
rtc
rtc: rtc-mv: Add support for clk to avoid lockups
2013-03-08 21:34:41 +00:00
s390
qdio: remove unused parameters
2013-02-28 09:37:12 +01:00
sbus
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-02-26 20:16:07 -08:00
scsi
ACPI / glue: Add .match() callback to struct acpi_bus_type
2013-03-04 14:23:40 +01:00
sfi
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sh
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sn
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spi
arm-soc: soc-specific updates
2013-02-21 15:27:22 -08:00
ssb
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into mips-for-linux-next
2013-02-22 10:07:30 +01:00
staging
Merge branch 'akpm' (fixes from Andrew)
2013-03-13 15:21:57 -07:00
target
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2013-03-02 11:43:27 -08:00
tc
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thermal
Fix mis-merge of intel_powerclamp.c resulting in compile error
2013-02-28 20:23:09 -08:00
tty
TTY/Serial fixes for 3.9-rc2
2013-03-13 15:02:02 -07:00
uio
uio: convert to idr_alloc()
2013-02-27 19:10:19 -08:00
usb
USB fixes for 3.9-rc2
2013-03-13 15:03:48 -07:00
uwb
driver-core: constify data for class_find_device()
2013-02-06 12:18:56 -08:00
vfio
vfio: convert to idr_alloc()
2013-02-27 19:10:19 -08:00
vhost
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2013-02-26 11:42:23 -08:00
video
ARM: OMAP1: Fix build related to kgdb.h no longer including serial_8250.h
2013-03-04 11:12:16 -08:00
virt
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virtio
All trivial, thanks to the stuff which didn't quite make it time.
2013-02-26 14:49:12 -08:00
vlynq
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vme
vme: add missing put_device() after device_register() fails
2013-02-14 09:24:14 -08:00
w1
w1: fix oops when w1_search is called from netlink connector
2013-03-12 16:20:46 -07:00
watchdog
watchdog: sp805_wdt depends on ARM
2013-03-01 12:56:26 +01:00
xen
Fixes:
2013-03-12 20:25:53 -07:00
zorro
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
Kconfig
Char/Misc driver patches for 3.9-rc1
2013-02-21 13:57:13 -08:00
Makefile
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2013-02-23 17:09:55 -08:00