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| author | Paul Gortmaker <paul.gortmaker@windriver.com> | 2017-10-02 09:09:36 -0400 |
|---|---|---|
| committer | Paul Gortmaker <paul.gortmaker@windriver.com> | 2017-10-02 09:09:36 -0400 |
| commit | e4090d9fe1d0314973eaad67e89c273dc2c5b31f (patch) | |
| tree | e2e5218cc05f6a6da86018599530a1637d1ef626 | |
| parent | efb50b0aec4945821ea15a752768a9da72862af6 (diff) | |
| download | 4.12-rt-patches-e4090d9fe1d0314973eaad67e89c273dc2c5b31f.tar.gz | |
refresh jump-label-rt.patchrt-v4.11-738-g5db6db0d400e
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
| -rw-r--r-- | patches/jump-label-rt.patch | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/patches/jump-label-rt.patch b/patches/jump-label-rt.patch index 1f4ee1ad694ba..cda0c60777d96 100644 --- a/patches/jump-label-rt.patch +++ b/patches/jump-label-rt.patch @@ -1,6 +1,7 @@ -Subject: jump-label: disable if stop_machine() is used +From 18ca0a8ad2673fdc88405be80e1df1056b4dddf2 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> -Date: Wed, 08 Jul 2015 17:14:48 +0200 +Date: Wed, 8 Jul 2015 17:14:48 +0200 +Subject: [PATCH] jump-label: disable if stop_machine() is used Some architectures are using stop_machine() while switching the opcode which leads to latency spikes. @@ -18,18 +19,20 @@ The architecures which use other sorcery: Signed-off-by: Thomas Gleixner <tglx@linutronix.de> [bigeasy: only ARM for now] Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> ---- - arch/arm/Kconfig | 2 +- - 1 file changed, 1 insertion(+), 1 deletion(-) +diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig +index 8a7ab5e73af9..1b21337dccfb 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig -@@ -42,7 +42,7 @@ config ARM +@@ -41,7 +41,7 @@ config ARM + select HARDIRQS_SW_RESEND select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT) select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6 - select HAVE_ARCH_HARDENED_USERCOPY - select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU + select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU && !PREEMPT_RT_BASE select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU select HAVE_ARCH_MMAP_RND_BITS if MMU select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT) +-- +2.1.4 + |