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linux-uconsole/drivers/misc
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Wei Wang a870c9b4c9 uid_sys_stats: change to use rt_mutex 
We see this happens multiple times in heavy workload in systrace
and AMS stuck in uid_lock.

Running process:        Process 953
Running thread: android.ui
State:  Uninterruptible Sleep
Start:
1,025.628 ms
Duration:
27,955.949 ms
On CPU:
Running instead:        system_server
Args:
{kernel callsite when blocked:: "uid_procstat_write+0xb8/0x144"}

Changing to rt_mutex can mitigate the priority inversion

Bug: 34991231
Bug: 34193533
Test: on marlin
Change-Id: I28eb3971331cea60b1075740c792ab87d103262c
Signed-off-by: Wei Wang <wvw@google.com>
2017-04-10 13:12:16 +05:30
..
altera-stapl drivers/misc/altera-stapl/altera.c: remove extraneous KERN_INFO prefix 2015-06-25 17:00:38 -07:00
c2port drivers: misc: Drop unlikely before IS_ERR(_OR_NULL) 2015-09-29 15:11:40 +02:00
cb710
cxl cxl: Enable PCI device ID for future IBM CXL adapter 2016-09-15 08:27:41 +02:00
echo
eeprom - New Device Support 2015-11-06 10:23:50 -08:00
genwqe GenWQE: Fix bad page access during abort of resource allocation 2016-11-10 16:36:33 +01:00
ibmasm
lis3lv02d spi: Drop owner assignment from spi_drivers 2015-10-28 10:30:17 +09:00
mei mei: bus: fix mei_cldev_enable KDoc 2017-01-12 11:22:47 +01:00
mic misc: mic/scif: fix wrap around tests 2016-05-04 14:48:51 -07:00
sgi-gru misc: sgi-gru: fix return of error 2015-10-04 12:55:59 +01:00
sgi-xp mm: rename alloc_pages_exact_node() to __alloc_pages_node() 2015-09-08 15:35:28 -07:00
ti-st ti-st: use worker instead of calling st_int_write in wake up 2015-09-20 22:52:13 -07:00
vmw_vmci misc/vmw_vmci: use kmemdup rather than duplicating its implementation 2015-09-20 19:27:58 -07:00
ad525x_dpot-i2c.c misc: ad525x_dpot: Remove unnecessary MODULE_ALIAS() 2015-09-20 19:33:29 -07:00
ad525x_dpot-spi.c spi: Drop owner assignment from spi_drivers 2015-10-28 10:30:17 +09:00
ad525x_dpot.c drivers/misc/ad525x_dpot: AD5274 fix RDAC read back errors 2016-05-04 14:48:52 -07:00
ad525x_dpot.h
apds990x.c misc: Drop owner assignment from i2c_driver 2015-08-10 08:37:35 +02:00
apds9802als.c
arm-charlcd.c
atmel-ssc.c
atmel_tclib.c misc: atmel_tclib: get and use slow clock 2015-10-06 12:33:14 +02:00
bh1770glc.c misc: Drop owner assignment from i2c_driver 2015-08-10 08:37:35 +02:00
bh1780gli.c
bmp085-i2c.c misc: Drop owner assignment from i2c_driver 2015-08-10 08:37:35 +02:00
bmp085-spi.c spi: Drop owner assignment from spi_drivers 2015-10-28 10:30:17 +09:00
bmp085.c
bmp085.h
cs5535-mfgpt.c
ds1682.c misc: ds1682: clean up ds1682_eeprom_read() and ds1682_eeprom_write() 2015-08-05 13:53:39 -07:00
dummy-irq.c
enclosure.c
fsa9480.c
hmc6352.c
hpilo.c misc: hpilo: Change e-mail address from hp.com to hpe.com 2015-10-04 12:42:33 +01:00
hpilo.h
ics932s401.c
ioc4.c
isl29003.c misc: Drop owner assignment from i2c_driver 2015-08-10 08:37:35 +02:00
isl29020.c
Kconfig ANDROID: uid_sys_stats: rename uid_cputime.c to uid_sys_stats.c 2017-04-10 13:12:16 +05:30
kgdbts.c drivers/misc: make kgdbts.c slightly more explicitly non-modular 2015-09-20 19:32:35 -07:00
lattice-ecp3-config.c spi: Drop owner assignment from spi_drivers 2015-10-28 10:30:17 +09:00
lkdtm.c lkdtm: Verify that '__ro_after_init' works correctly 2016-03-17 18:51:51 +00:00
Makefile ANDROID: uid_sys_stats: rename uid_cputime.c to uid_sys_stats.c 2017-04-10 13:12:16 +05:30
memory_state_time.c Implement memory_state_time, used by qcom,cpubw 2016-08-18 18:56:03 +05:30
pch_phub.c
phantom.c
pti.c
qcom-coincell.c ARM: qcom: Add coincell charger driver 2015-07-29 13:37:18 -07:00
spear13xx_pcie_gadget.c spear13xx_pcie_gadget: use per-attribute show and store methods 2015-10-13 22:17:40 -07:00
sram.c misc: sram: partition base address belongs to __iomem space 2015-10-18 19:00:36 -07:00
ti_dac7512.c spi: Drop owner assignment from spi_drivers 2015-10-28 10:30:17 +09:00
tifm_7xx1.c
tifm_core.c
tsl2550.c misc: Drop owner assignment from i2c_driver 2015-08-10 08:37:35 +02:00
uid_sys_stats.c uid_sys_stats: change to use rt_mutex 2017-04-10 13:12:16 +05:30
vexpress-syscfg.c
vmw_balloon.c mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM 2015-11-06 17:50:42 -08:00