arm: Remove TIF_NOHZ

Arm entry code calls context tracking from fast path. TIF_NOHZ is unused
and can be safely removed.

Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russell King <linux@armlinux.org.uk>

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 38b764cae559afe8d3355c5427490da1e9112c47..97864aabc2a6fa2aa7c86df3b19454b7e68c3dda 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -72,7 +72,6 @@ config ARM
        select HAVE_ARM_SMCCC if CPU_V7
        select HAVE_EBPF_JIT if !CPU_ENDIAN_BE32
        select HAVE_CONTEXT_TRACKING
-       select HAVE_TIF_NOHZ
        select HAVE_COPY_THREAD_TLS
        select HAVE_C_RECORDMCOUNT
        select HAVE_DEBUG_KMEMLEAK if !XIP_KERNEL

diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
index 0d0d5178e2c32807e16b7dbdae51cb85c3e015ad..3609a6980c3420c55d1959e4cb0f13b0f21792d6 100644 (file)
--- a/arch/arm/include/asm/thread_info.h
+++ b/arch/arm/include/asm/thread_info.h
@@ -141,7 +141,6 @@ extern int vfp_restore_user_hwstate(struct user_vfp *,
 #define TIF_SYSCALL_TRACEPOINT 6       /* syscall tracepoint instrumentation */
 #define TIF_SECCOMP            7       /* seccomp syscall filtering active */
 
-#define TIF_NOHZ               12      /* in adaptive nohz mode */
 #define TIF_USING_IWMMXT       17
 #define TIF_MEMDIE             18      /* is terminating due to OOM killer */
 #define TIF_RESTORE_SIGMASK    20