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

From: tip-bot for Raghavendra K T
Date: Thu Aug 08 2013 - 19:20:10 EST

Commit-ID: d179f399e285100fdf0c3e7bf5d9b4f2416282be
Gitweb: http://git.kernel.org/tip/d179f399e285100fdf0c3e7bf5d9b4f2416282be
Author: Raghavendra K T <raghavendra.kt@xxxxxxxxxxxxxxxxxx>
AuthorDate: Tue, 6 Aug 2013 17:11:01 +0530
Committer: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxxxxxxxx>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Signed-off-by: Raghavendra K T <raghavendra.kt@xxxxxxxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/20130806114101.20643.46837.sendpatchset@xxxxxxxxxxxxxxxxxxx
Acked-by: Ingo Molnar <mingo@xxxxxxxxxx>
Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
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
bool "Paravirtualization layer for spinlocks"
depends on PARAVIRT && SMP
Paravirtualized spinlocks allow a pvops backend to replace the
spinlock implementation with something virtualization-friendly
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