arm: Remove TIF_NOHZ (1acb2249) · Commits · 戴 / test

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>

arch/arm/Kconfig

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Original line number	Diff line number	Diff line
		@@ -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

arch/arm/include/asm/thread_info.h

+0 −1

Original line number	Diff line number	Diff line
		@@ -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

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