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Message-ID: <1390260717.3138.33.camel@schen9-DESK> Date: Mon, 20 Jan 2014 15:31:57 -0800 From: Tim Chen <tim.c.chen@...ux.intel.com> To: Peter Zijlstra <peterz@...radead.org> Cc: Ingo Molnar <mingo@...e.hu>, Andrew Morton <akpm@...ux-foundation.org>, Thomas Gleixner <tglx@...utronix.de>, "Paul E.McKenney" <paulmck@...ux.vnet.ibm.com>, Will Deacon <will.deacon@....com>, linux-kernel@...r.kernel.org, linux-mm <linux-mm@...ck.org>, linux-arch@...r.kernel.org, Linus Torvalds <torvalds@...ux-foundation.org>, Waiman Long <waiman.long@...com>, Andrea Arcangeli <aarcange@...hat.com>, Alex Shi <alex.shi@...aro.org>, Andi Kleen <andi@...stfloor.org>, Michel Lespinasse <walken@...gle.com>, Davidlohr Bueso <davidlohr.bueso@...com>, Matthew R Wilcox <matthew.r.wilcox@...el.com>, Dave Hansen <dave.hansen@...el.com>, Rik van Riel <riel@...hat.com>, Peter Hurley <peter@...leysoftware.com>, Raghavendra K T <raghavendra.kt@...ux.vnet.ibm.com>, George Spelvin <linux@...izon.com>, "H. Peter Anvin" <hpa@...or.com>, Arnd Bergmann <arnd@...db.de>, Aswin Chandramouleeswaran <aswin@...com>, Scott J Norton <scott.norton@...com>, "Figo.zhang" <figo1802@...il.com> Subject: Re: [PATCH v7 6/6] MCS Lock: add Kconfig entries to allow arch-specific hooks On Mon, 2014-01-20 at 13:30 +0100, Peter Zijlstra wrote: > > Then again, people seem to whinge if you don't keep these Kbuild files > sorted, but manually sorting 29 files is just not something I like to > do. > Peter, Can you clarify what exactly needs to be sorted? The Kbuild files spit out by git diff appears to be sorted already. Tim > --- > arch/alpha/include/asm/Kbuild | 1 + > arch/arc/include/asm/Kbuild | 1 + > arch/arm/include/asm/Kbuild | 1 + > arch/arm64/include/asm/Kbuild | 1 + > arch/avr32/include/asm/Kbuild | 1 + > arch/blackfin/include/asm/Kbuild | 1 + > arch/c6x/include/asm/Kbuild | 1 + > arch/cris/include/asm/Kbuild | 1 + > arch/frv/include/asm/Kbuild | 1 + > arch/hexagon/include/asm/Kbuild | 1 + > arch/ia64/include/asm/Kbuild | 2 +- > arch/m32r/include/asm/Kbuild | 1 + > arch/m68k/include/asm/Kbuild | 1 + > arch/metag/include/asm/Kbuild | 1 + > arch/microblaze/include/asm/Kbuild | 1 + > arch/mips/include/asm/Kbuild | 1 + > arch/mn10300/include/asm/Kbuild | 1 + > arch/openrisc/include/asm/Kbuild | 1 + > arch/parisc/include/asm/Kbuild | 1 + > arch/powerpc/include/asm/Kbuild | 2 +- > arch/s390/include/asm/Kbuild | 1 + > arch/score/include/asm/Kbuild | 1 + > arch/sh/include/asm/Kbuild | 1 + > arch/sparc/include/asm/Kbuild | 1 + > arch/tile/include/asm/Kbuild | 1 + > arch/um/include/asm/Kbuild | 1 + > arch/unicore32/include/asm/Kbuild | 1 + > arch/x86/include/asm/Kbuild | 1 + > arch/xtensa/include/asm/Kbuild | 1 + > include/asm-generic/mcs_spinlock.h | 13 +++++++++++++ > 30 files changed, 42 insertions(+), 2 deletions(-) > > diff --git a/arch/alpha/include/asm/Kbuild b/arch/alpha/include/asm/Kbuild > index f01fb505ad52..14cbbbcec01f 100644 > --- a/arch/alpha/include/asm/Kbuild > +++ b/arch/alpha/include/asm/Kbuild > @@ -4,3 +4,4 @@ generic-y += clkdev.h > generic-y += exec.h > generic-y += trace_clock.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/arc/include/asm/Kbuild b/arch/arc/include/asm/Kbuild > index 9ae21c198007..c0773a5c2ca7 100644 > --- a/arch/arc/include/asm/Kbuild > +++ b/arch/arc/include/asm/Kbuild > @@ -48,3 +48,4 @@ generic-y += user.h > generic-y += vga.h > generic-y += xor.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild > index c38b58c80202..c68cfdde8783 100644 > --- a/arch/arm/include/asm/Kbuild > +++ b/arch/arm/include/asm/Kbuild > @@ -34,3 +34,4 @@ generic-y += timex.h > generic-y += trace_clock.h > generic-y += unaligned.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/arm64/include/asm/Kbuild b/arch/arm64/include/asm/Kbuild > index 519f89f5b6a3..24a3c10cdf38 100644 > --- a/arch/arm64/include/asm/Kbuild > +++ b/arch/arm64/include/asm/Kbuild > @@ -51,3 +51,4 @@ generic-y += user.h > generic-y += vga.h > generic-y += xor.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/avr32/include/asm/Kbuild b/arch/avr32/include/asm/Kbuild > index 658001b52400..466e13d06bd3 100644 > --- a/arch/avr32/include/asm/Kbuild > +++ b/arch/avr32/include/asm/Kbuild > @@ -18,3 +18,4 @@ generic-y += sections.h > generic-y += topology.h > generic-y += trace_clock.h > generic-y += xor.h > +generic-y += mcs_spinlock.h > diff --git a/arch/blackfin/include/asm/Kbuild b/arch/blackfin/include/asm/Kbuild > index f2b43474b0e2..0bd1c5c688e3 100644 > --- a/arch/blackfin/include/asm/Kbuild > +++ b/arch/blackfin/include/asm/Kbuild > @@ -45,3 +45,4 @@ generic-y += unaligned.h > generic-y += user.h > generic-y += xor.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/c6x/include/asm/Kbuild b/arch/c6x/include/asm/Kbuild > index fc0b3c356027..21d7100ddef9 100644 > --- a/arch/c6x/include/asm/Kbuild > +++ b/arch/c6x/include/asm/Kbuild > @@ -57,3 +57,4 @@ generic-y += user.h > generic-y += vga.h > generic-y += xor.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/cris/include/asm/Kbuild b/arch/cris/include/asm/Kbuild > index 199b1a9dab89..c571cc12a4d2 100644 > --- a/arch/cris/include/asm/Kbuild > +++ b/arch/cris/include/asm/Kbuild > @@ -13,3 +13,4 @@ generic-y += trace_clock.h > generic-y += vga.h > generic-y += xor.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/frv/include/asm/Kbuild b/arch/frv/include/asm/Kbuild > index 74742dc6a3da..ccca92eb782a 100644 > --- a/arch/frv/include/asm/Kbuild > +++ b/arch/frv/include/asm/Kbuild > @@ -3,3 +3,4 @@ generic-y += clkdev.h > generic-y += exec.h > generic-y += trace_clock.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild > index ada843c701ef..553077d0f50c 100644 > --- a/arch/hexagon/include/asm/Kbuild > +++ b/arch/hexagon/include/asm/Kbuild > @@ -55,3 +55,4 @@ generic-y += ucontext.h > generic-y += unaligned.h > generic-y += xor.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/ia64/include/asm/Kbuild b/arch/ia64/include/asm/Kbuild > index f93ee087e8fe..25aed55ffeba 100644 > --- a/arch/ia64/include/asm/Kbuild > +++ b/arch/ia64/include/asm/Kbuild > @@ -4,4 +4,4 @@ generic-y += exec.h > generic-y += kvm_para.h > generic-y += trace_clock.h > generic-y += preempt.h > -generic-y += vtime.h > \ No newline at end of file > +generic-y += vtime.hgeneric-y += mcs_spinlock.h > diff --git a/arch/m32r/include/asm/Kbuild b/arch/m32r/include/asm/Kbuild > index 2b58c5f0bc38..d64fdd1b152b 100644 > --- a/arch/m32r/include/asm/Kbuild > +++ b/arch/m32r/include/asm/Kbuild > @@ -4,3 +4,4 @@ generic-y += exec.h > generic-y += module.h > generic-y += trace_clock.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild > index a5d27f272a59..1f4d44c7cc33 100644 > --- a/arch/m68k/include/asm/Kbuild > +++ b/arch/m68k/include/asm/Kbuild > @@ -32,3 +32,4 @@ generic-y += types.h > generic-y += word-at-a-time.h > generic-y += xor.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/metag/include/asm/Kbuild b/arch/metag/include/asm/Kbuild > index 84d0c1d6b9b3..ae0ae6e7ff77 100644 > --- a/arch/metag/include/asm/Kbuild > +++ b/arch/metag/include/asm/Kbuild > @@ -53,3 +53,4 @@ generic-y += user.h > generic-y += vga.h > generic-y += xor.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild > index a82426589fff..6eb70bde6212 100644 > --- a/arch/microblaze/include/asm/Kbuild > +++ b/arch/microblaze/include/asm/Kbuild > @@ -5,3 +5,4 @@ generic-y += exec.h > generic-y += trace_clock.h > generic-y += syscalls.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/mips/include/asm/Kbuild b/arch/mips/include/asm/Kbuild > index 1acbb8b77a71..c718d6342326 100644 > --- a/arch/mips/include/asm/Kbuild > +++ b/arch/mips/include/asm/Kbuild > @@ -14,3 +14,4 @@ generic-y += trace_clock.h > generic-y += preempt.h > generic-y += ucontext.h > generic-y += xor.h > +generic-y += mcs_spinlock.h > diff --git a/arch/mn10300/include/asm/Kbuild b/arch/mn10300/include/asm/Kbuild > index 032143ec2324..1393ae55ddaa 100644 > --- a/arch/mn10300/include/asm/Kbuild > +++ b/arch/mn10300/include/asm/Kbuild > @@ -4,3 +4,4 @@ generic-y += clkdev.h > generic-y += exec.h > generic-y += trace_clock.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild > index da1951a22907..7e049d3c0be0 100644 > --- a/arch/openrisc/include/asm/Kbuild > +++ b/arch/openrisc/include/asm/Kbuild > @@ -69,3 +69,4 @@ generic-y += vga.h > generic-y += word-at-a-time.h > generic-y += xor.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild > index 34b0be4ca52d..ebe16498339d 100644 > --- a/arch/parisc/include/asm/Kbuild > +++ b/arch/parisc/include/asm/Kbuild > @@ -6,3 +6,4 @@ generic-y += word-at-a-time.h auxvec.h user.h cputime.h emergency-restart.h \ > poll.h xor.h clkdev.h exec.h > generic-y += trace_clock.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/powerpc/include/asm/Kbuild b/arch/powerpc/include/asm/Kbuild > index d8f9d2f18a23..426001bd9c9e 100644 > --- a/arch/powerpc/include/asm/Kbuild > +++ b/arch/powerpc/include/asm/Kbuild > @@ -3,4 +3,4 @@ generic-y += clkdev.h > generic-y += rwsem.h > generic-y += trace_clock.h > generic-y += preempt.h > -generic-y += vtime.h > \ No newline at end of file > +generic-y += vtime.hgeneric-y += mcs_spinlock.h > diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild > index 7a5288f3479a..850891317efe 100644 > --- a/arch/s390/include/asm/Kbuild > +++ b/arch/s390/include/asm/Kbuild > @@ -3,3 +3,4 @@ > generic-y += clkdev.h > generic-y += trace_clock.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/score/include/asm/Kbuild b/arch/score/include/asm/Kbuild > index fe7471eb0167..8e39afcd2efd 100644 > --- a/arch/score/include/asm/Kbuild > +++ b/arch/score/include/asm/Kbuild > @@ -6,3 +6,4 @@ generic-y += clkdev.h > generic-y += trace_clock.h > generic-y += xor.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/sh/include/asm/Kbuild b/arch/sh/include/asm/Kbuild > index 231efbb68108..1aed131fbbfa 100644 > --- a/arch/sh/include/asm/Kbuild > +++ b/arch/sh/include/asm/Kbuild > @@ -35,3 +35,4 @@ generic-y += trace_clock.h > generic-y += ucontext.h > generic-y += xor.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/sparc/include/asm/Kbuild b/arch/sparc/include/asm/Kbuild > index bf390667657a..8843299956cc 100644 > --- a/arch/sparc/include/asm/Kbuild > +++ b/arch/sparc/include/asm/Kbuild > @@ -17,3 +17,4 @@ generic-y += trace_clock.h > generic-y += types.h > generic-y += word-at-a-time.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/tile/include/asm/Kbuild b/arch/tile/include/asm/Kbuild > index 22f3bd147fa7..152fc4821424 100644 > --- a/arch/tile/include/asm/Kbuild > +++ b/arch/tile/include/asm/Kbuild > @@ -39,3 +39,4 @@ generic-y += trace_clock.h > generic-y += types.h > generic-y += xor.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/um/include/asm/Kbuild b/arch/um/include/asm/Kbuild > index fdde187e6087..620d7292d54b 100644 > --- a/arch/um/include/asm/Kbuild > +++ b/arch/um/include/asm/Kbuild > @@ -4,3 +4,4 @@ generic-y += ftrace.h pci.h io.h param.h delay.h mutex.h current.h exec.h > generic-y += switch_to.h clkdev.h > generic-y += trace_clock.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/unicore32/include/asm/Kbuild b/arch/unicore32/include/asm/Kbuild > index 00045cbe5c63..cd7822c1effe 100644 > --- a/arch/unicore32/include/asm/Kbuild > +++ b/arch/unicore32/include/asm/Kbuild > @@ -61,3 +61,4 @@ generic-y += user.h > generic-y += vga.h > generic-y += xor.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/arch/x86/include/asm/Kbuild b/arch/x86/include/asm/Kbuild > index 7f669853317a..a8fee078b92f 100644 > --- a/arch/x86/include/asm/Kbuild > +++ b/arch/x86/include/asm/Kbuild > @@ -5,3 +5,4 @@ genhdr-y += unistd_64.h > genhdr-y += unistd_x32.h > > generic-y += clkdev.h > +generic-y += mcs_spinlock.h > diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild > index 228d6aee3a16..9653e5cfe345 100644 > --- a/arch/xtensa/include/asm/Kbuild > +++ b/arch/xtensa/include/asm/Kbuild > @@ -29,3 +29,4 @@ generic-y += topology.h > generic-y += trace_clock.h > generic-y += xor.h > generic-y += preempt.h > +generic-y += mcs_spinlock.h > diff --git a/include/asm-generic/mcs_spinlock.h b/include/asm-generic/mcs_spinlock.h > index e69de29bb2d1..8b921a41f351 100644 > --- a/include/asm-generic/mcs_spinlock.h > +++ b/include/asm-generic/mcs_spinlock.h > @@ -0,0 +1,13 @@ > +#ifndef __ASM_MCS_SPINLOCK_H > +#define __ASM_MCS_SPINLOCK_H > + > +/* > + * Architectures can define their own: > + * > + * mcs_spin_lock_contended(l) > + * mcs_spin_unlock_contended(l) > + * > + * See kernel/locking/mcs_spinlock.c. > + */ > + > +#endif /* __ASM_MCS_SPINLOCK_H */ > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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