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authorLinus Torvalds <torvalds@linux-foundation.org>2019-07-22 09:30:34 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-07-22 09:30:34 -0700
commit7b5cf701ea9c395c792e2a7e3b7caf4c68b87721 (patch)
tree6c7a2d6bd1369e732a297fd402a79ee8eed30850
parent44b912cd0b55777796c5ae8ae857bd1d5ff83ed5 (diff)
parentb8d3349803ba34afda429e87a837fd95a99b2349 (diff)
downloadlinux-stericsson-7b5cf701ea9c395c792e2a7e3b7caf4c68b87721.tar.gz
Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipHEADmaster
Pull preemption Kconfig fix from Thomas Gleixner: "The PREEMPT_RT stub config renamed PREEMPT to PREEMPT_LL and defined PREEMPT outside of the menu and made it selectable by both PREEMPT_LL and PREEMPT_RT. Stupid me missed that 114 defconfigs select CONFIG_PREEMPT which obviously can't work anymore. oldconfig builds are affected as well, but it's more obvious as the user gets asked. [old]defconfig silently fixes it up and selects PREEMPT_NONE. Unbreak it by undoing the rename and adding a intermediate config symbol which is selected by both PREEMPT and PREEMPT_RT. That requires to chase down a few #ifdefs, but it's better than tweaking 114 defconfigs and annoying users" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/rt, Kconfig: Unbreak def/oldconfig with CONFIG_PREEMPT=y
-rw-r--r--kernel/Kconfig.preempt8
1 files changed, 4 insertions, 4 deletions
diff --git a/kernel/Kconfig.preempt b/kernel/Kconfig.preempt
index fc020c09b7e8..deff97217496 100644
--- a/kernel/Kconfig.preempt
+++ b/kernel/Kconfig.preempt
@@ -35,10 +35,10 @@ config PREEMPT_VOLUNTARY
Select this if you are building a kernel for a desktop system.
-config PREEMPT_LL
+config PREEMPT
bool "Preemptible Kernel (Low-Latency Desktop)"
depends on !ARCH_NO_PREEMPT
- select PREEMPT
+ select PREEMPTION
select UNINLINE_SPIN_UNLOCK if !ARCH_INLINE_SPIN_UNLOCK
help
This option reduces the latency of the kernel by making
@@ -58,7 +58,7 @@ config PREEMPT_LL
config PREEMPT_RT
bool "Fully Preemptible Kernel (Real-Time)"
depends on EXPERT && ARCH_SUPPORTS_RT
- select PREEMPT
+ select PREEMPTION
help
This option turns the kernel into a real-time kernel by replacing
various locking primitives (spinlocks, rwlocks, etc.) with
@@ -77,6 +77,6 @@ endchoice
config PREEMPT_COUNT
bool
-config PREEMPT
+config PREEMPTION
bool
select PREEMPT_COUNT