[tip:x86/spinlocks] x86, ticketlock: Don' t inline _spin_unlock when using paravirt spinlocks

[tip-bot for Raghavendra K T <tipbot@zytor.com>]

Commit-ID:  d179f399e285100fdf0c3e7bf5d9b4f2416282be
Gitweb:     http://git.kernel.org/tip/d179f399e285100fdf0c3e7bf5d9b4f2416282be
Author:     Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
AuthorDate: Tue, 6 Aug 2013 17:11:01 +0530
Committer:  H. Peter Anvin <hpa@linux.intel.com>
CommitDate: Thu, 8 Aug 2013 16:06:27 -0700

x86, ticketlock: Don't inline _spin_unlock when using paravirt spinlocks

The code size expands somewhat, and its better to just call
a function rather than inline it.

Thanks Jeremy for original version of ARCH_NOINLINE_SPIN_UNLOCK config patch,
which is simplified.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/20130806114101.20643.46837.sendpatchset@codeblue.in.ibm.com
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index b32ebf9..112e712 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -632,6 +632,7 @@ config PARAVIRT_DEBUG
 config PARAVIRT_SPINLOCKS
 	bool "Paravirtualization layer for spinlocks"
 	depends on PARAVIRT && SMP
+	select UNINLINE_SPIN_UNLOCK
 	---help---
 	  Paravirtualized spinlocks allow a pvops backend to replace the
 	  spinlock implementation with something virtualization-friendly