Xiubo Li b6df4b79a5 tcmu: Add global data block pool support ... For each target there will be one ring, when the target number grows larger and larger, it could eventually runs out of the system memories. In this patch for each target ring, currently for the cmd area the size will be fixed to 8MB and for the data area the size will grow from 0 to max 256K * PAGE_SIZE(1G for 4K page size). For all the targets' data areas, they will get empty blocks from the "global data block pool", which has limited to 512K * PAGE_SIZE(2G for 4K page size) for now. When the "global data block pool" has been used up, then any target could wake up the unmap thread routine to shrink other targets' data area memories. And the unmap thread routine will always try to truncate the ring vma from the last using block offset. When user space has touched the data blocks out of tcmu_cmd iov[], the tcmu_page_fault() will try to return one zeroed blocks. Here we move the timeout's tcmu_handle_completions() into unmap thread routine, that's to say when the timeout fired, it will only do the tcmu_check_expired_cmd() and then wake up the unmap thread to do the completions() and then try to shrink its idle memories. Then the cmdr_lock could be a mutex and could simplify this patch because the unmap_mapping_range() or zap_* may go to sleep. Signed-off-by: Xiubo Li <lixiubo@cmss.chinamobile.com> Signed-off-by: Jianfei Hu <hujianfei@cmss.chinamobile.com> Acked-by: Mike Christie <mchristi@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>		2017-05-01 22:58:04 -07:00
..
accessibility
acpi	Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm	2017-03-03 16:48:48 -08:00
amba
android	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
ata	SCSI misc on 20170303	2017-03-03 21:36:56 -08:00
atm	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
auxdisplay
base	Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 11:38:56 -08:00
bcma
block	SCSI misc on 20170303	2017-03-03 21:36:56 -08:00
bluetooth
bus	ARM: SoC driver updates	2017-02-23 15:57:04 -08:00
cdrom
char	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
clk	ARM: SoC: late DT updates for v4.11	2017-03-03 16:15:48 -08:00
clocksource	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h>	2017-03-02 08:42:27 +01:00
connector
cpufreq	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
cpuidle	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2017-03-04 10:42:53 -08:00
dax	sched/headers: Prepare to remove the <linux/magic.h> include from <linux/sched/task_stack.h>	2017-03-02 08:42:40 +01:00
dca
devfreq	scripts/spelling.txt: add "followings" pattern and fix typo instances	2017-02-27 18:43:47 -08:00
dio
dma	sched/headers: Prepare to move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h>	2017-03-02 08:42:40 +01:00
dma-buf	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
edac	Merge branch 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-02-20 12:47:44 -08:00
eisa
extcon	scripts/spelling.txt: add "swithc" pattern and fix typo instances	2017-02-27 18:43:46 -08:00
firewire	Merge branch 'idr-4.11' of git://git.infradead.org/users/willy/linux-dax	2017-02-28 20:29:41 -08:00
firmware	sched/headers: Prepare for new header dependencies before moving code to <uapi/linux/sched/types.h>	2017-03-02 08:42:27 +01:00
fmc
fpga
fsi
gpio	This is the bulk of GPIO changes for the v4.11 cycle	2017-02-23 08:46:04 -08:00
gpu	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
hid	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
hsi	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
hv	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
hwmon	scripts/spelling.txt: add "followings" pattern and fix typo instances	2017-02-27 18:43:47 -08:00
hwspinlock
hwtracing	mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf	2017-02-24 17:46:54 -08:00
i2c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
ide	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
idle	Power management turbostat utility updates for v4.11-rc1	2017-03-02 17:41:27 -08:00
iio	Staging/IIO driver fixes for 4.11-rc1	2017-03-04 11:26:18 -08:00
infiniband	iser-target: avoid posting a recv buffer twice	2017-03-30 20:35:50 -07:00
input	Input: rmi4 - f30: detect INPUT_PROP_BUTTONPAD from the button count	2017-03-01 10:01:56 -08:00
iommu	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h>	2017-03-02 08:42:28 +01:00
ipack
irqchip	IOMMU Updates for Linux v4.11	2017-02-20 16:42:43 -08:00
isdn	sched/headers: Prepare to move cputime functionality from <linux/sched.h> into <linux/sched/cputime.h>	2017-03-02 08:42:39 +01:00
leds	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/loadavg.h>	2017-03-02 08:42:27 +01:00
lguest	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
lightnvm
macintosh	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
mailbox	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
mcb
md	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
media	sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h>	2017-03-02 08:42:37 +01:00
memory	ARM: SoC driver updates	2017-02-23 15:57:04 -08:00
memstick
message	SCSI misc on 20170220	2017-02-21 11:51:42 -08:00
mfd	staging/iio driver patches for 4.11-rc1	2017-02-22 12:14:01 -08:00
misc	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
mmc	sched/headers: Prepare for new header dependencies before moving code to <uapi/linux/sched/types.h>	2017-03-02 08:42:27 +01:00
mtd	Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 11:38:56 -08:00
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-03-04 17:31:39 -08:00
nfc	scripts/spelling.txt: add "omited" pattern and fix typo instances	2017-02-27 18:43:47 -08:00
ntb
nubus
nvdimm	nfit, libnvdimm: fix interleave set cookie calculation	2017-03-01 00:49:42 -08:00
nvme	Merge branch 'for-linus' of git://git.kernel.dk/linux-block	2017-03-03 10:53:35 -08:00
nvmem
of	DeviceTree updates for 4.11:	2017-02-22 19:23:14 -08:00
oprofile	sched/headers: Prepare to move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h>	2017-03-02 08:42:40 +01:00
parisc	Merge branch 'parisc-4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux	2017-03-03 16:20:06 -08:00
parport	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
pci	pci-v4.11-fixes-1	2017-03-03 16:44:21 -08:00
pcmcia
perf	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h>	2017-03-02 08:42:27 +01:00
phy	pci-v4.11-changes	2017-02-23 11:53:22 -08:00
pinctrl	scripts/spelling.txt: add "overrided" pattern and fix typo instances	2017-02-27 18:43:47 -08:00
platform	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/loadavg.h>	2017-03-02 08:42:27 +01:00
pnp
power	scripts/spelling.txt: add "intialization" pattern and fix typo instances	2017-02-27 18:43:47 -08:00
powercap
pps
ps3	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
ptp	4.11 is going to be a relatively large release for KVM, with a little over	2017-02-22 18:22:53 -08:00
pwm	pwm: Changes for v4.11-rc1	2017-03-01 09:46:02 -08:00
rapidio	rapidio: use get_user_pages_unlocked()	2017-02-27 18:43:45 -08:00
ras
regulator	regulator: Updates for v4.11	2017-02-20 17:23:57 -08:00
remoteproc	virtio, vhost: optimizations, fixes	2017-03-02 13:53:13 -08:00
reset	ARM: SoC driver updates	2017-02-23 15:57:04 -08:00
rpmsg	virtio, vhost: optimizations, fixes	2017-03-02 13:53:13 -08:00
rtc	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
s390	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
sbus
scsi	qla2xxx: Update driver version to 9.00.00.00-k	2017-03-18 17:28:38 -07:00
sfi
sh
sn
soc	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
spi	sched/headers: Prepare for new header dependencies before moving code to <uapi/linux/sched/types.h>	2017-03-02 08:42:27 +01:00
spmi
ssb
staging	Staging/IIO driver fixes for 4.11-rc1	2017-03-04 11:26:18 -08:00
target	tcmu: Add global data block pool support	2017-05-01 22:58:04 -07:00
tc
thermal	sched/headers: Prepare for new header dependencies before moving code to <uapi/linux/sched/types.h>	2017-03-02 08:42:27 +01:00
thunderbolt
tty	sched/headers: Prepare to move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h>	2017-03-02 08:42:40 +01:00
uio	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
usb	usb: gadget: Correct usb EP argument for BOT status request	2017-03-30 01:36:50 -07:00
uwb
vfio	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
vhost	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
video	sched/headers: Remove the <linux/mm_types.h> dependency from <linux/sched.h>	2017-03-03 01:45:16 +01:00
virt
virtio	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
vlynq
vme
w1	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
watchdog	watchdog: retu: restore MFD dependency	2017-03-01 06:15:10 -08:00
xen	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
zorro
Kconfig
Makefile	pci-v4.11-changes	2017-02-23 11:53:22 -08:00