Commit ddf1d169 authored Jan 21, 2014 by Tim Chen Committed by Ingo Molnar Feb 09, 2014

locking/mcs: Allow architecture specific asm files to be used for contended case

This patch allows each architecture to add its specific assembly optimized
arch_mcs_spin_lock_contended and arch_mcs_spinlock_uncontended for
MCS lock and unlock functions.

Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Scott J Norton <scott.norton@hp.com>
Cc: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Cc: AswinChandramouleeswaran <aswin@hp.com>
Cc: George Spelvin <linux@horizon.com>
Cc: Rik vanRiel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: MichelLespinasse <walken@google.com>
Cc: Peter Hurley <peter@hurleysoftware.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Alex Shi <alex.shi@linaro.org>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: "Figo.zhang" <figo1802@gmail.com>
Cc: "Paul E.McKenney" <paulmck@linux.vnet.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Davidlohr Bueso <davidlohr.bueso@hp.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matthew R Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1390347382.3138.67.camel@schen9-DESK

Signed-off-by: Ingo Molnar <mingo@kernel.org>

parent b119fa61

arch/alpha/include/asm/Kbuild

+1 −0

Original line number	Diff line number	Diff line
		@@ -3,5 +3,6 @@
		generic-y += clkdev.h
		generic-y += exec.h
		generic-y += hash.h
		generic-y += mcs_spinlock.h
		generic-y += preempt.h
		generic-y += trace_clock.h

arch/arc/include/asm/Kbuild

+1 −0

Original line number	Diff line number	Diff line
		@@ -22,6 +22,7 @@ generic-y += kmap_types.h
		generic-y += kvm_para.h
		generic-y += local.h
		generic-y += local64.h
		generic-y += mcs_spinlock.h
		generic-y += mman.h
		generic-y += msgbuf.h
		generic-y += param.h

arch/arm/include/asm/Kbuild

+1 −0

Original line number	Diff line number	Diff line
		@@ -14,6 +14,7 @@ generic-y += irq_regs.h
		generic-y += kdebug.h
		generic-y += local.h
		generic-y += local64.h
		generic-y += mcs_spinlock.h
		generic-y += msgbuf.h
		generic-y += param.h
		generic-y += parport.h

arch/arm64/include/asm/Kbuild

+1 −0

Original line number	Diff line number	Diff line
		@@ -23,6 +23,7 @@ generic-y += kmap_types.h
		generic-y += kvm_para.h
		generic-y += local.h
		generic-y += local64.h
		generic-y += mcs_spinlock.h
		generic-y += mman.h
		generic-y += msgbuf.h
		generic-y += mutex.h

arch/avr32/include/asm/Kbuild

+1 −0

Original line number	Diff line number	Diff line
		@@ -11,6 +11,7 @@ generic-y += hash.h
		generic-y += irq_regs.h
		generic-y += local.h
		generic-y += local64.h
		generic-y += mcs_spinlock.h
		generic-y += param.h
		generic-y += percpu.h
		generic-y += preempt.h