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3f4298427a
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Heiko Carstens 3f4298427a s390/vmcp: make use of contiguous memory allocator 
If memory is fragmented it is unlikely that large order memory
allocations succeed. This has been an issue with the vmcp device
driver since a long time, since it requires large physical contiguous
memory ares for large responses.

To hopefully resolve this issue make use of the contiguous memory
allocator (cma). This patch adds a vmcp specific vmcp cma area with a
default size of 4MB. The size can be changed either via the
VMCP_CMA_SIZE config option at compile time or with the "vmcp_cma"
kernel parameter (e.g. "vmcp_cma=16m").

For any vmcp response buffers larger than 16k memory from the cma area
will be allocated. If such an allocation fails, there is a fallback to
the buddy allocator.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-08-09 09:09:35 -04:00
..
accessibility
acpi acpi/nfit: Fix memory corruption/Unregister mce decoder on failure 2017-07-17 11:43:58 -07:00
amba
android binder: Use wake up hint for synchronous transactions. 2017-07-17 14:44:19 +02:00
ata Merge branch 'for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 2017-07-06 09:41:58 -07:00
atm atm: zatm: Fix an error handling path in 'zatm_init_one()' 2017-07-18 11:37:46 -07:00
auxdisplay
base dma mapping fixes for 4.13-rc2: 2017-07-25 17:17:18 -07:00
bcma
block nbd: kill unused ret in recv_work 2017-07-13 08:03:30 -06:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-07-05 12:31:59 -07:00
bus main drm pull for v4.13 2017-07-09 18:48:37 -07:00
cdrom block: don't set bounce limit in blk_init_queue 2017-06-27 12:13:45 -06:00
char Add wait_for_random_bytes() and get_random_*_wait() functions so that 2017-07-15 12:44:02 -07:00
clk Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2017-07-15 10:59:54 -07:00
clocksource clocksource/drivers/timer-of: Handle of_irq_get_byname() result correctly 2017-07-17 22:43:00 +02:00
connector
cpufreq Merge branches 'intel_pstate' and 'pm-domains' 2017-07-20 18:57:15 +02:00
cpuidle powerpc updates for 4.13 2017-07-07 13:55:45 -07:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-07-14 22:49:50 -07:00
dax device-dax: fix sysfs duplicate warnings 2017-07-18 17:49:14 -07:00
dca
devfreq PM / devfreq: constify attribute_group structures. 2017-07-06 10:17:24 +09:00
dio
dma dmaengine updates for 4.13-rc1 2017-07-08 12:36:50 -07:00
dma-buf Merge branch 'drm-misc-next-fixes' into drm-misc-fixes 2017-07-17 11:56:07 -04:00
edac EDAC, pnd2: Fix Apollo Lake DIMM detection 2017-06-29 10:37:50 +02:00
eisa
extcon
firewire
firmware efi: avoid fortify checks in EFI stub 2017-07-12 16:26:02 -07:00
fmc
fpga
fsi drivers/fsi: fix fsi_slave_mode prototype 2017-07-17 16:13:54 +02:00
gpio Merge (most of) tag 'mfd-next-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd 2017-07-07 13:30:05 -07:00
gpu imx-drm: fix parallel display regression and typo in plane format list 2017-07-21 14:04:44 +10:00
hid HID: ortek: add one more buggy device 2017-07-24 17:38:21 +02:00
hsi HSI changes for the v4.13 series 2017-07-04 14:28:22 -07:00
hv vmbus: re-enable channel tasklet 2017-07-17 15:00:47 +02:00
hwmon hwmon: (applesmc) Avoid buffer overruns 2017-07-15 16:38:56 -07:00
hwspinlock
hwtracing Char/Misc patches for 4.13-rc1 2017-07-03 20:55:59 -07:00
i2c Merge branch 'i2c/for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2017-07-12 10:04:56 -07:00
ide ide: avoid warning for timings calculation 2017-07-21 04:37:22 +01:00
idle intel_idle: Use more common logging style 2017-06-29 22:58:35 +02:00
iio hwmon updates for v4.13: 2017-07-04 11:48:27 -07:00
infiniband RDMA/core: Initialize port_num in qp_attr 2017-07-20 11:24:13 -04:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2017-07-14 22:53:37 -07:00
iommu IOMMU Updates for Linux v4.13 2017-07-12 10:00:04 -07:00
ipack
irqchip irqchip/digicolor: Drop unnecessary static 2017-07-18 21:59:23 +02:00
isdn isdn: avm: c4: constify pci_device_id. 2017-07-15 21:25:56 -07:00
leds LED updates for 4.13 2017-07-06 11:32:40 -07:00
lguest
lightnvm lightnvm: pblk: remove unnecessary checks 2017-07-07 13:17:36 -06:00
macintosh Merge branch 'work.misc-set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-05 13:13:32 -07:00
mailbox Merge branch 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration 2017-07-07 10:24:07 -07:00
mcb
md Merge tag 'md/4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md 2017-07-18 11:51:08 -07:00
media main drm pull for v4.13 2017-07-09 18:48:37 -07:00
memory ARM: SoC driver updates 2017-07-04 14:47:47 -07:00
memstick
message
mfd chrome-platform-for-linus-4.13 2017-07-11 09:55:47 -07:00
misc powerpc updates for 4.13 2017-07-07 13:55:45 -07:00
mmc MMC core: 2017-07-14 13:10:06 -07:00
mtd MTD updates for v4.13-rc1: 2017-07-13 12:07:44 -07:00
mux mux: mux-core: unregister mux_class in mux_exit() 2017-07-17 16:38:35 +02:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-07-20 16:33:39 -07:00
nfc NFC 4.13 pull request 2017-07-01 14:30:39 -07:00
ntb ntb: Add error path/handling to Debug FS entry creation 2017-07-06 11:30:08 -04:00
nubus
nvdimm libnvdimm: fix badblock range handling of ARS range 2017-07-17 11:43:58 -07:00
nvme nvmet: don't report 0-bytes in serial number 2017-07-20 08:41:56 -06:00
nvmem nvmem: rockchip-efuse: amend compatible rk322x-efuse to rk3228-efuse 2017-07-17 16:15:57 +02:00
of Device properties framework updates for v4.13-rc1 2017-07-10 15:23:45 -07:00
oprofile
parisc parisc: ->mapping_error 2017-07-05 21:46:42 +02:00
parport
pci Power management fixes for v4.13-rc1 2017-07-14 22:24:25 -07:00
pcmcia
perf Merge branch 'aarch64/for-next/ras-apei' into aarch64/for-next/core 2017-06-26 10:54:27 +01:00
phy
pinctrl This is the big bulk of pin control changes for the v4.13 series: 2017-07-06 11:38:59 -07:00
platform Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2017-07-15 10:59:54 -07:00
pnp This is the bulk of GPIO changes for the v4.13 series: 2017-07-07 12:40:27 -07:00
power power supply and reset changes for the v4.13 series (part 2) 2017-07-13 11:47:59 -07:00
powercap powercap/RAPL: prevent overridding bits outside of the mask 2017-06-28 00:38:34 +02:00
pps
ps3
ptp ptp: dte: Use LL suffix for 64-bit constants 2017-07-06 11:40:58 +01:00
pwm pwm: Changes for v4.13-rc1 2017-07-13 11:49:52 -07:00
rapidio
ras arm64 updates for 4.13: 2017-07-05 17:09:27 -07:00
regulator Merge remote-tracking branches 'regulator/topic/settle', 'regulator/topic/tps65910' and 'regulator/topic/tps65917' into regulator-next 2017-07-03 16:52:21 +01:00
remoteproc remoteproc/keystone: Fix circular dependencies for ARM configs 2017-06-27 16:21:34 -07:00
reset ARM: SoC driver updates 2017-07-04 14:47:47 -07:00
rpmsg rpmsg updates for v4.13 2017-07-06 15:38:31 -07:00
rtc RTC for 4.13 2017-07-13 12:15:06 -07:00
s390 s390/vmcp: make use of contiguous memory allocator 2017-08-09 09:09:35 -04:00
sbus block: don't set bounce limit in blk_init_queue 2017-06-27 12:13:45 -06:00
scsi SCSI fixes on 20170725 2017-07-25 20:10:10 -07:00
sfi
sh drivers/sh/intc/virq.c: delete an error message for a failed memory allocation in add_virq_to_pirq() 2017-07-06 16:24:30 -07:00
sn
soc ARM: SoC driver updates 2017-07-04 14:47:47 -07:00
spi Merge branch 'for-spi' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-08 10:41:53 -07:00
spmi spmi: pmic-arb: Always allocate ppid_to_apid table 2017-07-17 15:00:47 +02:00
ssb
staging staging: rtl8188eu: add TL-WN722N v2 support 2017-07-18 09:04:22 +02:00
target Add wait_for_random_bytes() and get_random_*_wait() functions so that 2017-07-15 12:44:02 -07:00
tc
tee
thermal Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2017-07-14 13:12:32 -07:00
thunderbolt uuid fixups: 2017-07-25 19:46:05 -07:00
tty tty: hide unused pty_get_peer function 2017-07-17 17:04:41 +02:00
uio
usb xhci: fix memleak in xhci_run() 2017-07-20 14:40:36 +02:00
uwb driver core patches for 4.13-rc1 2017-07-03 20:27:48 -07:00
vfio VFIO updates for v4.13-rc1 2017-07-13 12:23:54 -07:00
vhost Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2017-07-13 14:27:32 -07:00
video Merge branch 'akpm' (patches from Andrew) 2017-07-13 12:38:49 -07:00
virt
virtio
vlynq
vme
w1 w1: omap-hdq: fix error return code in omap_hdq_probe() 2017-07-17 16:48:15 +02:00
watchdog Merge git://www.linux-watchdog.org/linux-watchdog 2017-07-11 09:59:37 -07:00
xen xen/balloon: don't online new memory initially 2017-07-23 08:13:18 +02:00
zorro
Kconfig
Makefile