Messages in this thread Patch in this message | | | From | Frederic Weisbecker <> | Subject | [PATCH 3/5] x86: Remove TIF_NOHZ | Date | Fri, 14 Feb 2020 16:26:13 +0100 |
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Static keys have replaced TIF_NOHZ to optimize the calls to context tracking. We can now safely remove that thread flag.
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: Borislav Petkov <bp@alien8.de> Cc: Andy Lutomirski <luto@kernel.org> --- arch/x86/Kconfig | 1 - arch/x86/include/asm/thread_info.h | 2 -- 2 files changed, 3 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 549eed3460c9..beea77046f9b 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -211,7 +211,6 @@ config X86 select HAVE_STACK_VALIDATION if X86_64 select HAVE_RSEQ select HAVE_SYSCALL_TRACEPOINTS - select HAVE_TIF_NOHZ if X86_64 select HAVE_UNSTABLE_SCHED_CLOCK select HAVE_USER_RETURN_NOTIFIER select HAVE_GENERIC_VDSO diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h index 6cb9d1b0d1e6..384cdde10680 100644 --- a/arch/x86/include/asm/thread_info.h +++ b/arch/x86/include/asm/thread_info.h @@ -92,7 +92,6 @@ struct thread_info { #define TIF_NOCPUID 15 /* CPUID is not accessible in userland */ #define TIF_NOTSC 16 /* TSC is not accessible in userland */ #define TIF_IA32 17 /* IA32 compatibility process */ -#define TIF_NOHZ 19 /* in adaptive nohz mode */ #define TIF_MEMDIE 20 /* is terminating due to OOM killer */ #define TIF_POLLING_NRFLAG 21 /* idle is polling for TIF_NEED_RESCHED */ #define TIF_IO_BITMAP 22 /* uses I/O bitmap */ @@ -122,7 +121,6 @@ struct thread_info { #define _TIF_NOCPUID (1 << TIF_NOCPUID) #define _TIF_NOTSC (1 << TIF_NOTSC) #define _TIF_IA32 (1 << TIF_IA32) -#define _TIF_NOHZ (1 << TIF_NOHZ) #define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) #define _TIF_IO_BITMAP (1 << TIF_IO_BITMAP) #define _TIF_FORCED_TF (1 << TIF_FORCED_TF) -- 2.25.0
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