Mike Snitzer 4a0b4ddf26 dm: do not initialise full request queue when bio based ... Change bio-based mapped devices no longer to have a fully initialized request_queue (request_fn, elevator, etc). This means bio-based DM devices no longer register elevator sysfs attributes ('iosched/' tree or 'scheduler' other than "none"). In contrast, a request-based DM device will continue to have a full request_queue and will register elevator sysfs attributes. Therefore a user can determine a DM device's type by checking if elevator sysfs attributes exist. First allocate a minimalist request_queue structure for a DM device (needed for both bio and request-based DM). Initialization of a full request_queue is deferred until it is known that the DM device is request-based, at the end of the table load sequence. Factor DM device's request_queue initialization: - common to both request-based and bio-based into dm_init_md_queue(). - specific to request-based into dm_init_request_based_queue(). The md->type_lock mutex is used to protect md->queue, in addition to md->type, during table_load(). A DM device's first table_load will establish the immutable md->type. But md->queue initialization, based on md->type, may fail at that time (because blk_init_allocated_queue cannot allocate memory). Therefore any subsequent table_load must (re)try dm_setup_md_queue independently of establishing md->type. Signed-off-by: Mike Snitzer <snitzer@redhat.com> Acked-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>		2010-08-12 04:14:02 +01:00
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accessibility
acpi	Merge branch 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6	2010-08-07 17:08:30 -07:00
amba	ARM: AMBA: Add pclk support to AMBA bus infrastructure	2010-07-31 13:07:27 +01:00
ata	Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm	2010-08-11 09:13:19 -07:00
atm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6	2010-08-09 21:05:52 -07:00
auxdisplay
base	drivers/base/node.c: reduce stack usage of node_read_meminfo()	2010-08-09 20:45:02 -07:00
block	Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block	2010-08-10 15:22:42 -07:00
bluetooth	Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6	2010-08-06 12:25:06 -07:00
cdrom	block: push down BKL into .open and .release	2010-08-07 18:25:34 +02:00
char	kfifo: fix kfifo miss use of nozami.c	2010-08-11 08:59:23 -07:00
clocksource
connector
cpufreq	[CPUFREQ] fix brace coding style issue.	2010-08-03 13:47:05 -04:00
cpuidle	cpuidle: extend cpuidle and menu governor to handle dynamic states	2010-08-09 20:45:04 -07:00
crypto	Merge branch 'ixp4xx' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6	2010-08-11 09:17:27 -07:00
dca
dio
dma	Merge branches 'master' and 'devel' into for-linus	2010-08-10 23:17:52 +01:00
edac	edac: mpc85xx: add support for new MPCxxx/Pxxxx EDAC controllers	2010-08-11 08:59:21 -07:00
eisa
firewire	Merge firewire branches to be released post v2.6.35	2010-08-02 10:09:04 +02:00
firmware	edd: fix possible memory leak in edd_init() error path	2010-08-09 20:45:09 -07:00
gpio	gpio: sx150x: add Semtech I2C sx150x gpio expander driver	2010-08-11 08:59:09 -07:00
gpu	vt/console: try harder to print output when panicing	2010-08-10 13:47:40 -07:00
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2010-08-10 15:08:02 -07:00
hwmon	fix "hwmon: coretemp: update hotplug condition check"	2010-08-11 08:58:59 -07:00
i2c	Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into devel-stable	2010-08-09 14:07:19 +01:00
ide	Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block	2010-08-10 15:22:42 -07:00
idle	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq	2010-08-04 11:13:36 -07:00
ieee1394	Merge firewire branches to be released post v2.6.35	2010-08-02 10:09:04 +02:00
ieee802154
infiniband	RDMA/cxgb4: Obtain RDMA QID ranges from LLD/FW	2010-08-07 23:08:47 -07:00
input	panic: keep blinking in spite of long spin timer mode	2010-08-11 08:59:22 -07:00
isdn	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6	2010-08-09 21:05:52 -07:00
leds	leds: Remove owner field from attribute initialization in bd2802 driver	2010-08-05 13:53:35 -07:00
lguest
macintosh	Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-08-06 13:25:43 -07:00
mca
md	dm: do not initialise full request queue when bio based	2010-08-12 04:14:02 +01:00
media	Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6	2010-08-10 15:09:54 -07:00
memstick	block: push down BKL into .open and .release	2010-08-07 18:25:34 +02:00
message	fusion: fix kernel-doc warnings	2010-08-11 08:59:12 -07:00
mfd
misc	cs5535-mfgpt: reuse timers that have never been set up	2010-08-11 08:59:20 -07:00
mmc	mmc: add ricoh e822 pci id	2010-08-11 08:59:05 -07:00
mtd	mtd/nand_base: fix kernel-doc warnings & typos	2010-08-11 08:59:18 -07:00
net	Merge branch 'ixp4xx' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6	2010-08-11 09:17:27 -07:00
nubus
of	of/platform: Register of_platform_drivers with an "of:" prefix	2010-08-01 01:44:18 -06:00
oprofile
parisc	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2010-08-04 15:31:02 -07:00
parport	parport_serial: use the PCI IRQ if offered	2010-08-11 08:59:22 -07:00
pci	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx	2010-08-09 21:00:07 -07:00
pcmcia	Merge branches 'master' and 'devel' into for-linus	2010-08-10 23:17:52 +01:00
platform	ips driver: make it less chatty	2010-08-03 11:55:15 -04:00
pnp
power	Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm	2010-08-11 09:13:19 -07:00
pps
ps3
rapidio
regulator	regulator: Remove owner field from attribute initialization in regulator core driver	2010-08-05 13:53:35 -07:00
rtc	Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm	2010-08-11 09:13:19 -07:00
s390	Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block	2010-08-10 15:22:42 -07:00
sbus	Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6	2010-08-05 15:57:35 -07:00
scsi	scsi: 53c700: remove dma_is_consistent usage	2010-08-11 08:59:21 -07:00
serial	Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm	2010-08-11 09:13:19 -07:00
sfi
sh	sh: add a reparent function to DIV6 clocks	2010-08-04 16:12:01 +09:00
sn
spi	of/address: Clean up function declarations	2010-08-01 01:42:42 -06:00
ssb	Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6	2010-08-06 12:25:06 -07:00
staging	Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block	2010-08-10 15:22:42 -07:00
tc
telephony	pcmcia: do not use io_req_t when calling pcmcia_request_io()	2010-08-03 09:04:11 +02:00
thermal
uio	uio: Remove IRQF_DISABLED flag from uio_cif.c	2010-08-05 13:53:33 -07:00
usb	Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6	2010-08-10 15:05:02 -07:00
uwb
vhost	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6	2010-08-04 11:47:58 -07:00
video	Merge branch 'msm-video' of git://codeaurora.org/quic/kernel/dwalker/linux-msm	2010-08-11 09:18:06 -07:00
virtio
vlynq
w1
watchdog	watchdog: hpwdt: formatting of pointers in printk()	2010-08-08 18:22:44 +00:00
xen	Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block	2010-08-10 15:22:42 -07:00
zorro	zorro: Fix reading of proc/bus/zorro/* in small chunks	2010-08-09 21:14:08 +02:00
Kconfig
Makefile