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author | Robert Schwebel <r.schwebel@pengutronix.de> | 2017-09-05 11:26:09 +0200 |
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committer | Robert Schwebel <r.schwebel@pengutronix.de> | 2017-10-11 15:16:40 +0200 |
commit | 71edf02b1f3e89582e268420e66c401040a197ca (patch) | |
tree | 1033f72c6d9331734af9acb319ea0310ff08513f /configs/platform-v7a/kernelconfig | |
parent | 60db8e7b8ab6ae03d578acae85eada195a5c1121 (diff) | |
download | DistroKit-71edf02b1f3e89582e268420e66c401040a197ca.tar.gz DistroKit-71edf02b1f3e89582e268420e66c401040a197ca.tar.xz |
platform-v7a: kernel: switch on CONFIG_PREEMPT
"reason" suggests that the typical embedded use-cases are more sensitive
to latency than throughput, so a fully preemptible kernel is preferred.
Signed-off-by: Robert Schwebel <r.schwebel@pengutronix.de>
Reviewed-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Diffstat (limited to 'configs/platform-v7a/kernelconfig')
-rw-r--r-- | configs/platform-v7a/kernelconfig | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/configs/platform-v7a/kernelconfig b/configs/platform-v7a/kernelconfig index 79e3d26..f71131b 100644 --- a/configs/platform-v7a/kernelconfig +++ b/configs/platform-v7a/kernelconfig @@ -103,11 +103,11 @@ CONFIG_TICK_CPU_ACCOUNTING=y # # RCU Subsystem # -CONFIG_TREE_RCU=y +CONFIG_PREEMPT_RCU=y # CONFIG_RCU_EXPERT is not set CONFIG_SRCU=y CONFIG_TREE_SRCU=y -# CONFIG_TASKS_RCU is not set +CONFIG_TASKS_RCU=y CONFIG_RCU_STALL_COMMON=y CONFIG_RCU_NEED_SEGCBLIST=y CONFIG_BUILD_BIN2C=y @@ -324,11 +324,7 @@ CONFIG_DEFAULT_IOSCHED="noop" # CONFIG_MQ_IOSCHED_KYBER is not set # CONFIG_IOSCHED_BFQ is not set CONFIG_ASN1=y -CONFIG_INLINE_SPIN_UNLOCK_IRQ=y -CONFIG_INLINE_READ_UNLOCK=y -CONFIG_INLINE_READ_UNLOCK_IRQ=y -CONFIG_INLINE_WRITE_UNLOCK=y -CONFIG_INLINE_WRITE_UNLOCK_IRQ=y +CONFIG_UNINLINE_SPIN_UNLOCK=y CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y CONFIG_MUTEX_SPIN_ON_OWNER=y CONFIG_RWSEM_SPIN_ON_OWNER=y @@ -595,9 +591,10 @@ CONFIG_NR_CPUS=4 CONFIG_HOTPLUG_CPU=y # CONFIG_ARM_PSCI is not set CONFIG_ARCH_NR_GPIO=0 -CONFIG_PREEMPT_NONE=y +# CONFIG_PREEMPT_NONE is not set # CONFIG_PREEMPT_VOLUNTARY is not set -# CONFIG_PREEMPT is not set +CONFIG_PREEMPT=y +CONFIG_PREEMPT_COUNT=y CONFIG_HZ_FIXED=0 CONFIG_HZ_100=y # CONFIG_HZ_200 is not set @@ -3006,6 +3003,7 @@ CONFIG_PANIC_TIMEOUT=0 # CONFIG_SCHEDSTATS is not set # CONFIG_SCHED_STACK_END_CHECK is not set # CONFIG_DEBUG_TIMEKEEPING is not set +CONFIG_DEBUG_PREEMPT=y # # Lock Debugging (spinlocks, mutexes, etc...) @@ -3066,6 +3064,7 @@ CONFIG_FTRACE=y CONFIG_FUNCTION_TRACER=y CONFIG_FUNCTION_GRAPH_TRACER=y # CONFIG_IRQSOFF_TRACER is not set +# CONFIG_PREEMPT_TRACER is not set # CONFIG_SCHED_TRACER is not set # CONFIG_HWLAT_TRACER is not set # CONFIG_FTRACE_SYSCALLS is not set |