tmp_suning_uos_patched/drivers
Andi Kleen ab4c142488 dm: support barriers on simple devices
Implement barrier support for single device DM devices

This patch implements barrier support in DM for the common case of dm linear
just remapping a single underlying device. In this case we can safely
pass the barrier through because there can be no reordering between
devices.

 NB. Any DM device might cease to support barriers if it gets
     reconfigured so code must continue to allow for a possible
     -EOPNOTSUPP on every barrier bio submitted.  - agk

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2009-01-06 03:05:09 +00:00
..
accessibility
acpi cpumask: convert shared_cpu_map in acpi_processor* structs to cpumask_var_t 2009-01-03 19:15:40 +01:00
amba
ata Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-12-30 17:43:10 -08:00
atm
auxdisplay
base Merge branch 'cpus4096-for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-01-03 12:04:39 -08:00
block Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus 2008-12-30 17:37:25 -08:00
bluetooth
cdrom
char sparseirq: move set/get_timer_rand_state back to .c 2009-01-03 12:01:23 -08:00
clocksource Merge branch 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-01-02 11:44:09 -08:00
connector
cpufreq
cpuidle
crypto
dca
dio
dma
edac
eisa
firewire
firmware
gpio
gpu
hid
hwmon
i2c Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-12-30 17:36:49 -08:00
ide ide-atapi: start dma in a drive-specific way 2009-01-02 16:12:56 +01:00
idle
ieee1394
infiniband Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2008-12-31 23:05:57 +10:30
input Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-12-30 17:36:49 -08:00
isdn
leds
lguest Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask into merge-rr-cpumask 2009-01-03 18:53:31 +01:00
macintosh
mca
md dm: support barriers on simple devices 2009-01-06 03:05:09 +00:00
media V4L/DVB (10173): Missing v4l2_prio_close in radio_release 2009-01-03 10:50:38 -02:00
memstick
message
mfd
misc
mmc Merge branch 'master' of ../mmc 2008-12-31 19:56:05 +01:00
mtd Merge branch 'linux-next' of git://git.infradead.org/~dedekind/ubi-2.6 2009-01-02 15:57:26 -08:00
net hso maintainers update patch 2009-01-02 10:19:43 -08:00
nubus
of
oprofile shrink struct dentry 2008-12-31 18:07:38 -05:00
parisc Merge branch 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-01-02 11:44:09 -08:00
parport
pci Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu 2009-01-03 12:03:52 -08:00
pcmcia
pnp percpu: fix percpu accessors to potentially !cpu_possible() cpus: pnpbios 2009-01-01 10:12:14 +10:30
power
ps3
rapidio
regulator
rtc rtc: add alarm/update irq interfaces 2009-01-04 13:33:20 -08:00
s390 [PATCH] improve idle cputime accounting 2008-12-31 15:11:48 +01:00
sbus
scsi remove ide-scsi 2009-01-02 16:12:51 +01:00
serial serial_8250: support for Sealevel Systems Model 7803 COMM+8 2009-01-02 10:19:44 -08:00
sh
sn
spi
ssb
staging
tc
telephony
thermal
uio
usb Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb 2009-01-02 10:31:04 -08:00
uwb Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream 2009-01-02 13:17:13 +00:00
video viafb: fix crashes due to 4k stack overflow 2009-01-04 13:33:20 -08:00
virtio virtio: add PCI device release() function 2008-12-30 09:26:10 +10:30
w1
watchdog [WATCHDOG] Add support for the WM8350 watchdog 2008-12-31 16:12:54 +00:00
xen Merge branch 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-01-02 11:44:09 -08:00
zorro
Kconfig
Makefile