Messages in this thread Patch in this message | | | Date | Thu, 8 Aug 2013 16:19:20 -0700 | From | tip-bot for Raghavendra K T <> | Subject | [tip:x86/spinlocks] x86, ticketlock: Don' t inline _spin_unlock when using paravirt spinlocks |
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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
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