Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755196Ab1CKCF5 (ORCPT ); Thu, 10 Mar 2011 21:05:57 -0500 Received: from eddie.linux-mips.org ([78.24.191.182]:51291 "EHLO cvs.linux-mips.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753997Ab1CKCF4 (ORCPT ); Thu, 10 Mar 2011 21:05:56 -0500 Date: Fri, 11 Mar 2011 03:05:40 +0100 From: Ralf Baechle To: Steven Rostedt Cc: Jason Baron , peterz@infradead.org, hpa@zytor.com, mathieu.desnoyers@polymtl.ca, mingo@elte.hu, tglx@linutronix.de, andi@firstfloor.org, roland@redhat.com, rth@redhat.com, masami.hiramatsu.pt@hitachi.com, fweisbec@gmail.com, avi@redhat.com, davem@davemloft.net, sam@ravnborg.org, ddaney@caviumnetworks.com, michael@ellerman.id.au, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/2] jump label: introduce static_branch() interface Message-ID: <20110311020540.GA26622@linux-mips.org> References: <49b4727c7bfee19c2b7284b3339076ed827f3142.1299702291.git.jbaron@redhat.com> <1299790616.15854.417.camel@gandalf.stny.rr.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1299790616.15854.417.camel@gandalf.stny.rr.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3230 Lines: 92 On Thu, Mar 10, 2011 at 03:56:56PM -0500, Steven Rostedt wrote: > On Wed, 2011-03-09 at 15:47 -0500, Jason Baron wrote: > > > arch/mips/include/asm/jump_label.h | 22 +- > > arch/mips/kernel/jump_label.c | 2 +- > > arch/sparc/include/asm/jump_label.h | 25 +- > > arch/x86/include/asm/alternative.h | 3 +- > > arch/x86/include/asm/jump_label.h | 26 +- > > arch/x86/kernel/alternative.c | 2 +- > > arch/x86/kernel/jump_label.c | 2 +- > > arch/x86/kernel/module.c | 1 + > > include/asm-generic/vmlinux.lds.h | 14 +- > > include/linux/dynamic_debug.h | 2 - > > include/linux/jump_label.h | 86 ++++--- > > include/linux/jump_label_ref.h | 44 --- > > include/linux/perf_event.h | 26 +- > > include/linux/tracepoint.h | 22 +- > > kernel/jump_label.c | 537 ++++++++++++++--------------------- > > kernel/perf_event.c | 4 +- > > kernel/tracepoint.c | 23 +- > > 17 files changed, 352 insertions(+), 489 deletions(-) > > delete mode 100644 include/linux/jump_label_ref.h > > > > diff --git a/arch/mips/include/asm/jump_label.h b/arch/mips/include/asm/jump_label.h > > index 7622ccf..1881b31 100644 > > --- a/arch/mips/include/asm/jump_label.h > > +++ b/arch/mips/include/asm/jump_label.h > > @@ -20,16 +20,18 @@ > > #define WORD_INSN ".word" > > #endif > > > > -#define JUMP_LABEL(key, label) \ > > - do { \ > > - asm goto("1:\tnop\n\t" \ > > - "nop\n\t" \ > > - ".pushsection __jump_table, \"a\"\n\t" \ > > - WORD_INSN " 1b, %l[" #label "], %0\n\t" \ > > - ".popsection\n\t" \ > > - : : "i" (key) : : label); \ > > - } while (0) > > - > > +static __always_inline bool arch_static_branch(struct jump_label_key *key) > > +{ > > + asm goto("1:\tnop\n\t" > > + "nop\n\t" > > + ".pushsection __jump_table, \"aw\"\n\t" > > + WORD_INSN " 1b, %l[l_yes], %0\n\t" > > + ".popsection\n\t" > > + : : "i" (key) : : l_yes); > > + return false; > > +l_yes: > > + return true; > > +} > > > > #endif /* __KERNEL__ */ > > > > diff --git a/arch/mips/kernel/jump_label.c b/arch/mips/kernel/jump_label.c > > index 6001610..09ac7ca 100644 > > --- a/arch/mips/kernel/jump_label.c > > +++ b/arch/mips/kernel/jump_label.c > > @@ -6,11 +6,11 @@ > > * Copyright (c) 2010 Cavium Networks, Inc. > > */ > > > > -#include > > #include > > #include > > #include > > #include > > +#include > > #include > > > > #include > > Hi Ralf, > > Can I get your Acked-by on this patch. You could have gotten it quicker if I had been on cc ... I'm happy with the change to arch/mips/include/asm/jump_label.h and assuming that the change to arch/mips/kernel/jump_label.c will be dropped Acked-by: Ralf Baechle Ralf -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/