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Also remove the CONFIG_PREEMPT_DYNAMIC guarded inclusion of linux/entry-common.h which seems to have been missed somewhere. Signed-off-by: Ankur Arora --- .../admin-guide/kernel-parameters.txt | 7 ------- arch/Kconfig | 9 --------- arch/x86/Kconfig | 1 - kernel/Kconfig.preempt | 19 ------------------- kernel/sched/core.c | 6 ------ 5 files changed, 42 deletions(-) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 0a1731a0f0ef..93b60558a78f 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -4577,13 +4577,6 @@ Format: {"off"} Disable Hardware Transactional Memory - preempt= [KNL] - Select preemption mode if you have CONFIG_PREEMPT_DYNAMIC - none - Limited to cond_resched() calls - voluntary - Limited to cond_resched() and might_sleep() calls - full - Any section that isn't explicitly preempt disabled - can be preempted anytime. - print-fatal-signals= [KNL] debug: print fatal signals diff --git a/arch/Kconfig b/arch/Kconfig index afe6785fd3e2..05ce60036ecc 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -1393,15 +1393,6 @@ config HAVE_STATIC_CALL_INLINE depends on HAVE_STATIC_CALL select OBJTOOL -config HAVE_PREEMPT_DYNAMIC - bool - depends on HAVE_STATIC_CALL - depends on GENERIC_ENTRY - help - Select this if the architecture support boot time preempt setting - on top of static calls. It is strongly advised to support inline - static call to avoid any overhead. - config ARCH_WANT_LD_ORPHAN_WARN bool help diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index ec71c232af32..76e418bf469d 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -270,7 +270,6 @@ config X86 select HAVE_STACK_VALIDATION if HAVE_OBJTOOL select HAVE_STATIC_CALL select HAVE_STATIC_CALL_INLINE if HAVE_OBJTOOL - select HAVE_PREEMPT_DYNAMIC select HAVE_RSEQ select HAVE_RUST if X86_64 select HAVE_SYSCALL_TRACEPOINTS diff --git a/kernel/Kconfig.preempt b/kernel/Kconfig.preempt index 5876e30c5740..715e7aebb9d8 100644 --- a/kernel/Kconfig.preempt +++ b/kernel/Kconfig.preempt @@ -40,7 +40,6 @@ config PREEMPT depends on !ARCH_NO_PREEMPT select PREEMPTION select UNINLINE_SPIN_UNLOCK if !ARCH_INLINE_SPIN_UNLOCK - select PREEMPT_DYNAMIC if HAVE_PREEMPT_DYNAMIC help This option reduces the latency of the kernel by making all kernel code (that is not executing in a critical section) @@ -82,24 +81,6 @@ config PREEMPTION bool select PREEMPT_COUNT -config PREEMPT_DYNAMIC - bool - help - This option allows to define the preemption model on the kernel - command line parameter and thus override the default preemption - model defined during compile time. - - The feature is primarily interesting for Linux distributions which - provide a pre-built kernel binary to reduce the number of kernel - flavors they offer while still offering different usecases. - - The runtime overhead is negligible with HAVE_STATIC_CALL_INLINE enabled - but if runtime patching is not available for the specific architecture - then the potential overhead should be considered. - - Interesting if you want the same pre-built kernel should be used for - both Server and Desktop workloads. - config SCHED_CORE bool "Core Scheduling for SMT" depends on SCHED_SMT diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 5a0bf43975d4..e30007c11722 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -65,12 +65,6 @@ #include #include -#ifdef CONFIG_PREEMPT_DYNAMIC -# ifdef CONFIG_GENERIC_ENTRY -# include -# endif -#endif - #include #include