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22259a6e80
linux-next/drivers/misc
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Aneesh Kumar K.V 22259a6e80 powerpc/mm/cxl: Add barrier when setting mm cpumask 
We need to add memory barrier so that the page table walk doesn't happen
before the cpumask is set and made visible to the other cpus. We need
to use a sync here instead of lwsync because lwsync is not sufficient for
store/load ordering.

We also need to add an if (mm) check so that we do the right thing when called
with a kernel context. For kernel context, we have mm = NULL. W.r.t kernel
address we can skip setting the mm cpumask.

Fixes: 0f4bc0932e ("powerpc/mm/cxl: Add the fault handling cpu to mm cpumask")
Cc: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-31 14:26:39 +10:00
..
altera-stapl
c2port drivers/misc/c2port/c2port-duramar2150.c: checking for NULL instead of IS_ERR() 2017-05-08 17:15:10 -07:00
cb710
cxl powerpc/mm/cxl: Add barrier when setting mm cpumask 2017-08-31 14:26:39 +10:00
echo
eeprom eeprom: idt_89hpesx: Add OF device ID table 2017-04-08 18:22:59 +02:00
genwqe sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h> 2017-03-02 08:42:29 +01:00
ibmasm 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
lis3lv02d 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
mei mei: drop unreachable code in mei_start 2017-06-13 15:46:18 +02:00
mic virtio: add context flag to find vqs 2017-05-02 23:41:43 +03:00
sgi-gru mm: convert generic code to 5-level paging 2017-03-09 11:48:47 -08:00
sgi-xp sgi-xp: Use designated initializers 2017-05-28 10:22:42 -07:00
ti-st networking: introduce and use skb_put_data() 2017-06-16 11:48:37 -04:00
vmw_vmci drivers/misc/vmw_vmci/vmci_queue_pair.c: fix a couple integer overflow tests 2017-05-08 17:15:10 -07:00
ad525x_dpot-i2c.c
ad525x_dpot-spi.c
ad525x_dpot.c misc: ad525x_dpot: Fix the enabling of the "otpXen" attributes 2016-03-01 16:55:13 -08:00
ad525x_dpot.h
apds990x.c misc: apds990x: Use sysfs_match_string() helper 2017-06-13 16:03:22 +02:00
apds9802als.c
aspeed-lpc-ctrl.c drivers/misc: aspeed-lpc-ctrl: fix printk format warning again 2017-04-08 17:37:20 +02:00
aspeed-lpc-snoop.c drivers/misc: add Aspeed LPC snoop driver 2017-06-03 19:15:18 +09:00
atmel_tclib.c
atmel-ssc.c misc: atmel-ssc: register as sound DAI if #sound-dai-cells is present 2016-12-15 12:13:31 +00:00
bh1770glc.c misc: bh1770glc: move header file out of I2C realm 2017-05-25 18:25:00 +02:00
cs5535-mfgpt.c
ds1682.c misc: ds1682: Add OF device ID table 2017-04-08 18:22:59 +02:00
dummy-irq.c Annotate hardware config module parameters in drivers/misc/ 2017-04-20 12:02:32 +01:00
enclosure.c scsi: ses: do not add a device to an enclosure if enclosure_add_links() fails. 2017-07-01 16:52:38 -04:00
fsa9480.c
hmc6352.c
hpilo.c drivers/misc/hpilo: Changes to support new security states in iLO5 FW 2016-09-27 12:53:46 +02:00
hpilo.h
ics932s401.c
ioc4.c
isl29003.c
isl29020.c
Kconfig drivers/misc: add Aspeed LPC snoop driver 2017-06-03 19:15:18 +09:00
kgdbts.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h> 2017-03-02 08:42:35 +01:00
lattice-ecp3-config.c
lkdtm_bugs.c misc: lkdtm: Add volatile to intentional NULL pointer reference 2017-04-18 18:03:42 +02:00
lkdtm_core.c lkdtm: add bad USER_DS test 2017-04-08 17:56:02 +02:00
lkdtm_heap.c sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h> 2017-03-02 08:42:31 +01:00
lkdtm_perms.c lkdtm: Do not use flush_icache_range() on user addresses 2016-11-10 15:34:56 +01:00
lkdtm_rodata.c lkdtm: Mark lkdtm_rodata_do_nothing() notrace 2016-08-31 13:12:38 +02:00
lkdtm_usercopy.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h> 2017-03-02 08:42:36 +01:00
lkdtm.h lkdtm: add bad USER_DS test 2017-04-08 17:56:02 +02:00
Makefile drivers/misc: add Aspeed LPC snoop driver 2017-06-03 19:15:18 +09:00
pch_phub.c misc: pch_phub: Add UART_CLK quirk for Boston platform 2016-08-31 15:45:18 +02:00
pci_endpoint_test.c misc: Add host side PCI driver for PCI test function device 2017-04-28 10:23:19 -05:00
phantom.c
pti.c
qcom-coincell.c ARM: qcom: silence an uninitialized variable warning 2016-05-01 14:20:04 -07:00
spear13xx_pcie_gadget.c
sram-exec.c misc: sram-exec: Use aligned fncpy instead of memcpy 2017-05-18 17:37:52 +02:00
sram.c misc: sram: Integrate protect-exec reserved sram area type 2017-01-25 11:48:03 +01:00
sram.h misc: sram: Integrate protect-exec reserved sram area type 2017-01-25 11:48:03 +01:00
ti_dac7512.c
tifm_7xx1.c
tifm_core.c
tsl2550.c misc: tsl2550: Add OF device ID table 2017-04-08 18:22:59 +02:00
vexpress-syscfg.c 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
vmw_balloon.c